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\\",props:{style:{color:"#79C0FF"}}}]},{tokens:[{content:" -p ",props:{style:{color:"#79C0FF"}}},{content:"7860:",props:{style:{color:"#A5D6FF"}}},{content:"7860 \\",props:{style:{color:"#79C0FF"}}}]},{tokens:[{content:" -e ",props:{style:{color:"#79C0FF"}}},{content:"VARIABLE_NAME='VALUE' ",props:{style:{color:"#A5D6FF"}}},{content:"\\",props:{style:{color:"#79C0FF"}}}]},{tokens:[{content:" langflowai/langflow:latest",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]})})]}),"\n",(0,s.jsxs)(o.p,{children:["When you start Langflow, it looks for environment variables that you've set in your terminal.\nIf it detects a supported environment variable, then it automatically adopts the specified value, subject to ",(0,s.jsx)(o.a,{href:"#precedence",children:"precedence rules"}),"."]}),"\n",(0,s.jsx)(o.h3,{id:"configure-variables-env-file",children:"Import environment variables from a .env file"}),"\n",(0,s.jsxs)(o.ol,{children:["\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsx)(o.p,{children:"If Langflow is running, quit Langflow."}),"\n"]}),"\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:["Create a ",(0,s.jsx)(o.code,{children:".env"})," file, and then open it in your preferred editor."]}),"\n"]}),"\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:["Define ",(0,s.jsx)(o.a,{href:"#supported-variables",children:"Langflow environment variables"})," in the ",(0,s.jsx)(o.code,{children:".env"})," file. For example:"]}),"\n",(0,s.jsx)(h.Code,{codeConfig:x,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"DO_NOT_TRACK=True",props:{}}]},{tokens:[{content:"LANGFLOW_AUTO_LOGIN=False",props:{}}]},{tokens:[{content:"LANGFLOW_AUTO_SAVING=True",props:{}}]},{tokens:[{content:"LANGFLOW_AUTO_SAVING_INTERVAL=1000",props:{}}]},{tokens:[{content:"LANGFLOW_BACKEND_ONLY=False",props:{}}]},{tokens:[{content:'LANGFLOW_BUNDLE_URLS=["https://github.com/user/repo/commit/hash"]',props:{}}]},{tokens:[{content:"LANGFLOW_CACHE_TYPE=async",props:{}}]},{tokens:[{content:"LANGFLOW_COMPONENTS_PATH=/path/to/components/",props:{}}]},{tokens:[{content:"LANGFLOW_CONFIG_DIR=/path/to/config/",props:{}}]},{tokens:[{content:"LANGFLOW_DATABASE_URL=postgresql://user:password@localhost:5432/langflow",props:{}}]},{tokens:[{content:"LANGFLOW_DEV=False",props:{}}]},{tokens:[{content:"LANGFLOW_FALLBACK_TO_ENV_VAR=False",props:{}}]},{tokens:[{content:"LANGFLOW_HEALTH_CHECK_MAX_RETRIES=5",props:{}}]},{tokens:[{content:"LANGFLOW_HOST=localhost",props:{}}]},{tokens:[{content:"LANGFLOW_LANGCHAIN_CACHE=InMemoryCache",props:{}}]},{tokens:[{content:"LANGFLOW_MAX_FILE_SIZE_UPLOAD=10000",props:{}}]},{tokens:[{content:"LANGFLOW_MAX_ITEMS_LENGTH=100",props:{}}]},{tokens:[{content:"LANGFLOW_MAX_TEXT_LENGTH=1000",props:{}}]},{tokens:[{content:"LANGFLOW_LOG_LEVEL=error",props:{}}]},{tokens:[{content:"LANGFLOW_OPEN_BROWSER=False",props:{}}]},{tokens:[{content:"LANGFLOW_PORT=7860",props:{}}]},{tokens:[{content:"LANGFLOW_REMOVE_API_KEYS=False",props:{}}]},{tokens:[{content:"LANGFLOW_SAVE_DB_IN_CONFIG_DIR=True",props:{}}]},{tokens:[{content:"LANGFLOW_SECRET_KEY=somesecretkey",props:{}}]},{tokens:[{content:"LANGFLOW_STORE=True",props:{}}]},{tokens:[{content:"LANGFLOW_STORE_ENVIRONMENT_VARIABLES=True",props:{}}]},{tokens:[{content:"LANGFLOW_SUPERUSER=adminuser",props:{}}]},{tokens:[{content:"LANGFLOW_SUPERUSER_PASSWORD=adminpass",props:{}}]},{tokens:[{content:"LANGFLOW_WORKER_TIMEOUT=60000",props:{}}]},{tokens:[{content:"LANGFLOW_WORKERS=3",props:{}}]}],lang:"text"},annotations:[]}]}),"\n",(0,s.jsxs)(o.p,{children:["For additional examples, see the ",(0,s.jsx)(o.a,{href:"https://github.com/langflow-ai/langflow/blob/main/.env.example",children:(0,s.jsx)(o.code,{children:".env.example"})})," file in the Langflow repository."]}),"\n"]}),"\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:["Save and close ",(0,s.jsx)(o.code,{children:".env"}),"."]}),"\n"]}),"\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:["Start Langflow with your ",(0,s.jsx)(o.code,{children:".env"})," file:"]}),"\n",(0,s.jsxs)(c.A,{children:[(0,s.jsx)(i.A,{value:"local",label:"Local",default:!0,children:(0,s.jsx)(h.Code,{codeConfig:x,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"langflow run ",props:{style:{color:"#A5D6FF"}}},{content:"--env-file ",props:{style:{color:"#79C0FF"}}},{content:".env",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]})}),(0,s.jsx)(i.A,{value:"docker",label:"Docker",children:(0,s.jsx)(h.Code,{codeConfig:x,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"docker ",props:{style:{color:"#FFA657"}}},{content:"run ",props:{style:{color:"#A5D6FF"}}},{content:"-it --rm \\",props:{style:{color:"#79C0FF"}}}]},{tokens:[{content:" -p ",props:{style:{color:"#79C0FF"}}},{content:"7860:",props:{style:{color:"#A5D6FF"}}},{content:"7860 \\",props:{style:{color:"#79C0FF"}}}]},{tokens:[{content:" --env-file ",props:{style:{color:"#79C0FF"}}},{content:".env ",props:{style:{color:"#A5D6FF"}}},{content:"\\",props:{style:{color:"#79C0FF"}}}]},{tokens:[{content:" langflowai/langflow:latest",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]})})]}),"\n",(0,s.jsxs)(o.p,{children:["If your ",(0,s.jsx)(o.code,{children:".env"})," file isn't in the same directory, provide the path to your ",(0,s.jsx)(o.code,{children:".env"})," file."]}),"\n"]}),"\n"]}),"\n",(0,s.jsxs)(o.p,{children:["On startup, Langflow imports the environment variables from your ",(0,s.jsx)(o.code,{children:".env"})," file, as well as any others that you set in your terminal, and then adopts their specified values."]}),"\n",(0,s.jsx)(o.h2,{id:"supported-variables",children:"Supported environment variables"}),"\n",(0,s.jsx)(o.p,{children:"The following table lists the environment variables supported by Langflow."}),"\n",(0,s.jsxs)(o.table,{children:[(0,s.jsx)(o.thead,{children:(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.th,{children:"Variable"}),(0,s.jsx)(o.th,{children:"Format"}),(0,s.jsx)(o.th,{children:"Default"}),(0,s.jsx)(o.th,{children:"Description"})]})}),(0,s.jsxs)(o.tbody,{children:[(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"DO_NOT_TRACK"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"False"}),(0,s.jsxs)(o.td,{children:["Whether to report ",(0,s.jsx)(o.a,{href:"/contributing-telemetry",children:"Langflow telemetry data"}),". If true, Langflow telemetry is disabled."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_AUTO_LOGIN"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"True"}),(0,s.jsxs)(o.td,{children:["See ",(0,s.jsx)(o.a,{href:"/api-keys-and-authentication#langflow-auto-login",children:(0,s.jsx)(o.code,{children:"LANGFLOW_AUTO_LOGIN"})}),"."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_AUTO_SAVING"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"True"}),(0,s.jsx)(o.td,{children:"Enable flow auto-saving."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_AUTO_SAVING_INTERVAL"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"1000"})}),(0,s.jsx)(o.td,{children:"Set the interval for flow auto-saving in milliseconds."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_BACKEND_ONLY"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"False"}),(0,s.jsx)(o.td,{children:"Run only the Langflow backend service (no frontend)."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_BUNDLE_URLS"})}),(0,s.jsx)(o.td,{children:"List[String]"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"[]"})}),(0,s.jsx)(o.td,{children:"A list of URLs from which to load component bundles and flows. Supports GitHub URLs. If LANGFLOW_AUTO_LOGIN is enabled, flows from these bundles are loaded into the database."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_CACHE_TYPE"})}),(0,s.jsx)(o.td,{children:"String"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"async"})}),(0,s.jsxs)(o.td,{children:["Set the cache type for Langflow. Possible values: ",(0,s.jsx)(o.code,{children:"async"}),", ",(0,s.jsx)(o.code,{children:"redis"}),", ",(0,s.jsx)(o.code,{children:"memory"}),", ",(0,s.jsx)(o.code,{children:"disk"}),". If you set the type to ",(0,s.jsx)(o.code,{children:"redis"}),", then you must also set the following environment variables: ",(0,s.jsx)(o.code,{children:"LANGFLOW_REDIS_HOST"}),", ",(0,s.jsx)(o.code,{children:"LANGFLOW_REDIS_PORT"}),", ",(0,s.jsx)(o.code,{children:"LANGFLOW_REDIS_DB"}),", and ",(0,s.jsx)(o.code,{children:"LANGFLOW_REDIS_CACHE_EXPIRE"}),". See also ",(0,s.jsx)(o.a,{href:"/configuration-cli#langflow-run",children:(0,s.jsx)(o.code,{children:"langflow run"})}),"."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_COMPONENTS_PATH"})}),(0,s.jsx)(o.td,{children:"String"}),(0,s.jsx)(o.td,{children:"Not set"}),(0,s.jsx)(o.td,{children:"Path to the directory containing custom components."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_CONFIG_DIR"})}),(0,s.jsx)(o.td,{children:"String"}),(0,s.jsx)(o.td,{children:"Varies"}),(0,s.jsxs)(o.td,{children:["Set the Langflow configuration directory where files, logs, and the Langflow database are stored. Default path depends on your installation. See ",(0,s.jsx)(o.a,{href:"/concepts-flows#flow-storage-and-logs",children:"Flow storage and logs"}),"."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DATABASE_URL"})}),(0,s.jsx)(o.td,{children:"String"}),(0,s.jsx)(o.td,{children:"Not set"}),(0,s.jsx)(o.td,{children:"Set the database URL for Langflow. If not provided, Langflow uses a SQLite database."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DATABASE_CONNECTION_RETRY"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"False"}),(0,s.jsx)(o.td,{children:"Whether to retry lost connections to the Langflow database. If true, Langflow tries to connect to the database again if the connection fails."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DB_POOL_SIZE"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"20"})}),(0,s.jsxs)(o.td,{children:[(0,s.jsx)(o.strong,{children:"DEPRECATED:"})," Use ",(0,s.jsx)(o.code,{children:"LANGFLOW_DB_CONNECTION_SETTINGS"})," instead. The number of connections to keep open in the connection pool."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DB_MAX_OVERFLOW"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"30"})}),(0,s.jsxs)(o.td,{children:[(0,s.jsx)(o.strong,{children:"DEPRECATED:"})," Use ",(0,s.jsx)(o.code,{children:"LANGFLOW_DB_CONNECTION_SETTINGS"})," instead. The number of connections to allow that can be opened beyond the pool size."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DB_CONNECT_TIMEOUT"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"30"})}),(0,s.jsx)(o.td,{children:"The number of seconds to wait before giving up on a lock to be released or establishing a connection to the database."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DB_CONNECTION_SETTINGS"})}),(0,s.jsx)(o.td,{children:"JSON"}),(0,s.jsx)(o.td,{children:"Not set"}),(0,s.jsxs)(o.td,{children:["A JSON dictionary to centralize database connection parameters. Example: ",(0,s.jsx)(o.code,{children:'{"pool_size": 20, "max_overflow": 30}'})]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DISABLE_TRACK_APIKEY_USAGE"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"False"}),(0,s.jsxs)(o.td,{children:["Whether to track API key usage. If true, disables tracking of API key usage (",(0,s.jsx)(o.code,{children:"total_uses"})," and ",(0,s.jsx)(o.code,{children:"last_used_at"}),") to avoid database contention under high concurrency."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_ENABLE_SUPERUSER_CLI"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"True"}),(0,s.jsxs)(o.td,{children:["Allow creation of superusers with the Langflow CLI command ",(0,s.jsx)(o.a,{href:"/configuration-cli#langflow-superuser",children:(0,s.jsx)(o.code,{children:"langflow superuser"})}),". Recommended to be disabled (false) in production for security reasons."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_FALLBACK_TO_ENV_VAR"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"True"}),(0,s.jsxs)(o.td,{children:["If enabled, ",(0,s.jsx)(o.a,{href:"/configuration-global-variables",children:"global variables"})," set in your Langflow ",(0,s.jsx)(o.strong,{children:"Settings"})," can use an environment variable with the same name if Langflow can't retrieve the variable value from the global variables."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_FRONTEND_PATH"})}),(0,s.jsx)(o.td,{children:"String"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"./frontend"})}),(0,s.jsxs)(o.td,{children:["Path to the frontend directory containing build files. This is for development purposes only. See ",(0,s.jsx)(o.a,{href:"/configuration-cli#langflow-run",children:(0,s.jsx)(o.code,{children:"langflow run"})}),"."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_HEALTH_CHECK_MAX_RETRIES"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"5"})}),(0,s.jsxs)(o.td,{children:["Set the maximum number of retries for the health check. See ",(0,s.jsx)(o.a,{href:"/configuration-cli#langflow-run",children:(0,s.jsx)(o.code,{children:"langflow run"})}),"."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_HOST"})}),(0,s.jsx)(o.td,{children:"String"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"localhost"})}),(0,s.jsxs)(o.td,{children:["The host on which the Langflow server will run. See ",(0,s.jsx)(o.a,{href:"/configuration-cli#langflow-run",children:(0,s.jsx)(o.code,{children:"langflow run"})}),"."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_LANGCHAIN_CACHE"})}),(0,s.jsx)(o.td,{children:"String"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"InMemoryCache"})}),(0,s.jsxs)(o.td,{children:["Type of cache storage to use, separate from ",(0,s.jsx)(o.code,{children:"LANGFLOW_CACHE_TYPE"}),". Possible values: ",(0,s.jsx)(o.code,{children:"InMemoryCache"}),", ",(0,s.jsx)(o.code,{children:"SQLiteCache"}),"."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_LOG_LEVEL"})}),(0,s.jsx)(o.td,{children:"String"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"INFO"})}),(0,s.jsxs)(o.td,{children:["Set the logging level for Langflow. Possible values: ",(0,s.jsx)(o.code,{children:"DEBUG"}),", ",(0,s.jsx)(o.code,{children:"INFO"}),", ",(0,s.jsx)(o.code,{children:"WARNING"}),", ",(0,s.jsx)(o.code,{children:"ERROR"}),", ",(0,s.jsx)(o.code,{children:"CRITICAL"}),"."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_LOG_FILE"})}),(0,s.jsx)(o.td,{children:"String"}),(0,s.jsx)(o.td,{children:"Not set"}),(0,s.jsx)(o.td,{children:"Path to the log file. If this option isn't set, logs are written to stdout."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_LOG_RETRIEVER_BUFFER_SIZE"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"10000"})}),(0,s.jsxs)(o.td,{children:["Set the buffer size for log retrieval. 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terminal."}),"\n",(0,s.jsxs)(o.li,{children:["Environment variables that you've imported from a ",(0,s.jsx)(o.code,{children:".env"})," file when starting Langflow or using the ",(0,s.jsx)(o.code,{children:"--env-file"})," option in the Langflow CLI."]}),"\n"]}),"\n",(0,s.jsxs)(o.p,{children:["You can choose to use one or both sources.\nHowever, environment variables imported from a ",(0,s.jsx)(o.code,{children:".env"})," file take ",(0,s.jsx)(o.a,{href:"#precedence",children:"precedence"})," over those set in your terminal."]}),"\n",(0,s.jsx)(o.h3,{id:"configure-variables-terminal",children:"Set environment variables in your terminal"}),"\n",(0,s.jsx)(o.p,{children:"Run the following commands to set environment variables for your current terminal session:"}),"\n",(0,s.jsxs)(c.A,{children:[(0,s.jsx)(i.A,{value:"linux-macos",label:"Linux or macOS",default:!0,children:(0,s.jsx)(h.Code,{codeConfig:u,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"export",props:{style:{color:"#FF7B72"}}},{content:" VARIABLE_NAME",props:{style:{color:"#C9D1D9"}}},{content:"=",props:{style:{color:"#FF7B72"}}},{content:"'VALUE'",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]})}),(0,s.jsx)(i.A,{value:"windows",label:"Windows",children:(0,s.jsx)(h.Code,{codeConfig:u,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"set VARIABLE_NAME='VALUE'",props:{}}]}],lang:"text"},annotations:[]}]})}),(0,s.jsx)(i.A,{value:"docker",label:"Docker",children:(0,s.jsx)(h.Code,{codeConfig:u,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"docker ",props:{style:{color:"#FFA657"}}},{content:"run ",props:{style:{color:"#A5D6FF"}}},{content:"-it --rm \\",props:{style:{color:"#79C0FF"}}}]},{tokens:[{content:" -p ",props:{style:{color:"#79C0FF"}}},{content:"7860:",props:{style:{color:"#A5D6FF"}}},{content:"7860 \\",props:{style:{color:"#79C0FF"}}}]},{tokens:[{content:" -e ",props:{style:{color:"#79C0FF"}}},{content:"VARIABLE_NAME='VALUE' ",props:{style:{color:"#A5D6FF"}}},{content:"\\",props:{style:{color:"#79C0FF"}}}]},{tokens:[{content:" langflowai/langflow:latest",props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]})})]}),"\n",(0,s.jsxs)(o.p,{children:["When you start Langflow, it looks for environment variables that you've set in your terminal.\nIf it detects a supported environment variable, then it automatically adopts the specified value, subject to ",(0,s.jsx)(o.a,{href:"#precedence",children:"precedence rules"}),"."]}),"\n",(0,s.jsx)(o.h3,{id:"configure-variables-env-file",children:"Import environment variables from a .env file"}),"\n",(0,s.jsxs)(o.ol,{children:["\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsx)(o.p,{children:"If Langflow is running, quit Langflow."}),"\n"]}),"\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:["Create a ",(0,s.jsx)(o.code,{children:".env"})," file, and then open it in your preferred editor."]}),"\n"]}),"\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:["Define ",(0,s.jsx)(o.a,{href:"#supported-variables",children:"Langflow environment variables"})," in the ",(0,s.jsx)(o.code,{children:".env"})," file. For example:"]}),"\n",(0,s.jsx)(h.Code,{codeConfig:u,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"DO_NOT_TRACK=True",props:{}}]},{tokens:[{content:"LANGFLOW_AUTO_LOGIN=False",props:{}}]},{tokens:[{content:"LANGFLOW_AUTO_SAVING=True",props:{}}]},{tokens:[{content:"LANGFLOW_AUTO_SAVING_INTERVAL=1000",props:{}}]},{tokens:[{content:"LANGFLOW_BACKEND_ONLY=False",props:{}}]},{tokens:[{content:'LANGFLOW_BUNDLE_URLS=["https://github.com/user/repo/commit/hash"]',props:{}}]},{tokens:[{content:"LANGFLOW_CACHE_TYPE=async",props:{}}]},{tokens:[{content:"LANGFLOW_COMPONENTS_PATH=/path/to/components/",props:{}}]},{tokens:[{content:"LANGFLOW_CONFIG_DIR=/path/to/config/",props:{}}]},{tokens:[{content:"LANGFLOW_DATABASE_URL=postgresql://user:password@localhost:5432/langflow",props:{}}]},{tokens:[{content:"LANGFLOW_DEV=False",props:{}}]},{tokens:[{content:"LANGFLOW_FALLBACK_TO_ENV_VAR=False",props:{}}]},{tokens:[{content:"LANGFLOW_HEALTH_CHECK_MAX_RETRIES=5",props:{}}]},{tokens:[{content:"LANGFLOW_HOST=localhost",props:{}}]},{tokens:[{content:"LANGFLOW_LANGCHAIN_CACHE=InMemoryCache",props:{}}]},{tokens:[{content:"LANGFLOW_MAX_FILE_SIZE_UPLOAD=10000",props:{}}]},{tokens:[{content:"LANGFLOW_MAX_ITEMS_LENGTH=100",props:{}}]},{tokens:[{content:"LANGFLOW_MAX_TEXT_LENGTH=1000",props:{}}]},{tokens:[{content:"LANGFLOW_LOG_LEVEL=error",props:{}}]},{tokens:[{content:"LANGFLOW_OPEN_BROWSER=False",props:{}}]},{tokens:[{content:"LANGFLOW_PORT=7860",props:{}}]},{tokens:[{content:"LANGFLOW_REMOVE_API_KEYS=False",props:{}}]},{tokens:[{content:"LANGFLOW_SAVE_DB_IN_CONFIG_DIR=True",props:{}}]},{tokens:[{content:"LANGFLOW_SECRET_KEY=somesecretkey",props:{}}]},{tokens:[{content:"LANGFLOW_STORE=True",props:{}}]},{tokens:[{content:"LANGFLOW_STORE_ENVIRONMENT_VARIABLES=True",props:{}}]},{tokens:[{content:"LANGFLOW_SUPERUSER=adminuser",props:{}}]},{tokens:[{content:"LANGFLOW_SUPERUSER_PASSWORD=adminpass",props:{}}]},{tokens:[{content:"LANGFLOW_WORKER_TIMEOUT=60000",props:{}}]},{tokens:[{content:"LANGFLOW_WORKERS=3",props:{}}]}],lang:"text"},annotations:[]}]}),"\n",(0,s.jsxs)(o.p,{children:["For additional examples, see the ",(0,s.jsx)(o.a,{href:"https://github.com/langflow-ai/langflow/blob/main/.env.example",children:(0,s.jsx)(o.code,{children:".env.example"})})," file in the Langflow repository."]}),"\n"]}),"\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:["Save and close ",(0,s.jsx)(o.code,{children:".env"}),"."]}),"\n"]}),"\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:["Start Langflow with your ",(0,s.jsx)(o.code,{children:".env"})," file:"]}),"\n",(0,s.jsxs)(c.A,{children:[(0,s.jsx)(i.A,{value:"local",label:"Local",default:!0,children:(0,s.jsx)(h.Code,{codeConfig:u,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"python ",props:{style:{color:"#FFA657"}}},{content:"-m ",props:{style:{color:"#79C0FF"}}},{content:"langflow run ",props:{style:{color:"#A5D6FF"}}},{content:"--env-file 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the same directory, provide the path to your ",(0,s.jsx)(o.code,{children:".env"})," file."]}),"\n"]}),"\n"]}),"\n",(0,s.jsxs)(o.p,{children:["On startup, Langflow imports the environment variables from your ",(0,s.jsx)(o.code,{children:".env"})," file, as well as any others that you set in your terminal, and then adopts their specified values."]}),"\n",(0,s.jsx)(o.h2,{id:"supported-variables",children:"Supported environment variables"}),"\n",(0,s.jsx)(o.p,{children:"The following table lists the environment variables supported by Langflow."}),"\n",(0,s.jsxs)(o.table,{children:[(0,s.jsx)(o.thead,{children:(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.th,{children:"Variable"}),(0,s.jsx)(o.th,{children:"Format"}),(0,s.jsx)(o.th,{children:"Default"}),(0,s.jsx)(o.th,{children:"Description"})]})}),(0,s.jsxs)(o.tbody,{children:[(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"DO_NOT_TRACK"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"False"}),(0,s.jsxs)(o.td,{children:["Whether to report ",(0,s.jsx)(o.a,{href:"/contributing-telemetry",children:"Langflow telemetry data"}),". If true, Langflow telemetry is disabled."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_AUTO_LOGIN"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"True"}),(0,s.jsxs)(o.td,{children:["See ",(0,s.jsx)(o.a,{href:"/api-keys-and-authentication#langflow-auto-login",children:(0,s.jsx)(o.code,{children:"LANGFLOW_AUTO_LOGIN"})}),"."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_AUTO_SAVING"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"True"}),(0,s.jsx)(o.td,{children:"Enable flow auto-saving."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_AUTO_SAVING_INTERVAL"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"1000"})}),(0,s.jsx)(o.td,{children:"Set the interval for flow auto-saving in milliseconds."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_BACKEND_ONLY"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"False"}),(0,s.jsx)(o.td,{children:"Run only the Langflow backend service (no frontend)."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_BUNDLE_URLS"})}),(0,s.jsx)(o.td,{children:"List[String]"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"[]"})}),(0,s.jsx)(o.td,{children:"A list of URLs from which to load component bundles and flows. 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If true, Langflow tries to connect to the database again if the connection fails."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DB_POOL_SIZE"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"20"})}),(0,s.jsxs)(o.td,{children:[(0,s.jsx)(o.strong,{children:"DEPRECATED:"})," Use ",(0,s.jsx)(o.code,{children:"LANGFLOW_DB_CONNECTION_SETTINGS"})," instead. The number of connections to keep open in the connection pool."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DB_MAX_OVERFLOW"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"30"})}),(0,s.jsxs)(o.td,{children:[(0,s.jsx)(o.strong,{children:"DEPRECATED:"})," Use ",(0,s.jsx)(o.code,{children:"LANGFLOW_DB_CONNECTION_SETTINGS"})," instead. The number of connections to allow that can be opened beyond the pool size."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DB_CONNECT_TIMEOUT"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"30"})}),(0,s.jsx)(o.td,{children:"The number of seconds to wait before giving up on a lock to be released or establishing a connection to the database."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_DB_CONNECTION_SETTINGS"})}),(0,s.jsx)(o.td,{children:"JSON"}),(0,s.jsx)(o.td,{children:"Not set"}),(0,s.jsxs)(o.td,{children:["A JSON dictionary to centralize database connection parameters. 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Possible values: ",(0,s.jsx)(o.code,{children:"DEBUG"}),", ",(0,s.jsx)(o.code,{children:"INFO"}),", ",(0,s.jsx)(o.code,{children:"WARNING"}),", ",(0,s.jsx)(o.code,{children:"ERROR"}),", ",(0,s.jsx)(o.code,{children:"CRITICAL"}),"."]})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_LOG_FILE"})}),(0,s.jsx)(o.td,{children:"String"}),(0,s.jsx)(o.td,{children:"Not set"}),(0,s.jsx)(o.td,{children:"Path to the log file. If this option isn't set, logs are written to stdout."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_LOG_RETRIEVER_BUFFER_SIZE"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"10000"})}),(0,s.jsxs)(o.td,{children:["Set the buffer size for log retrieval. 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The server automatically selects a free port if the specified port is in use."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_PROMETHEUS_ENABLED"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"False"}),(0,s.jsx)(o.td,{children:"Expose Prometheus metrics."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_PROMETHEUS_PORT"})}),(0,s.jsx)(o.td,{children:"Integer"}),(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"9090"})}),(0,s.jsx)(o.td,{children:"Set the port on which Langflow exposes Prometheus metrics."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_REMOVE_API_KEYS"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"False"}),(0,s.jsx)(o.td,{children:"Remove API keys from the projects saved in the database."})]}),(0,s.jsxs)(o.tr,{children:[(0,s.jsx)(o.td,{children:(0,s.jsx)(o.code,{children:"LANGFLOW_SAVE_DB_IN_CONFIG_DIR"})}),(0,s.jsx)(o.td,{children:"Boolean"}),(0,s.jsx)(o.td,{children:"False"}),(0,s.jsxs)(o.td,{children:["If false (default), the Langflow database is saved in the ",(0,s.jsx)(o.code,{children:"langflow"})," root directory. 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This file allows you to override the default environment variables for the 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flows and your Langflow server.\nThis includes essential Langflow database tables, file management, and caching, as well as chat memory."}),"\n",(0,s.jsx)(o.h2,{id:"storage-options-and-paths",children:"Storage options and paths"}),"\n",(0,s.jsx)(o.p,{children:"Langflow supports both local memory and external memory options."}),"\n",(0,s.jsxs)(o.p,{children:["Langflow's default storage option is a ",(0,s.jsx)(o.a,{href:"https://www.sqlite.org/",children:"SQLite"})," database stored in your system's cache directory.\nThe default storage path depends on your operation system and installation method:"]}),"\n",(0,s.jsxs)(o.ul,{children:["\n",(0,s.jsxs)(o.li,{children:[(0,s.jsx)(o.strong,{children:"macOS Desktop"}),": ",(0,s.jsx)(o.code,{children:"/Users//.langflow/data/database.db"})]}),"\n",(0,s.jsxs)(o.li,{children:[(0,s.jsx)(o.strong,{children:"Windows Desktop"}),": ",(0,s.jsx)(o.code,{children:"C:\\Users\\\\AppData\\Roaming\\com.Langflow\\data\\langflow.db"})]}),"\n",(0,s.jsxs)(o.li,{children:[(0,s.jsxs)(o.strong,{children:["OSS macOS/Windows/Linux/WSL (",(0,s.jsx)(o.code,{children:"uv pip install"}),")"]}),": ",(0,s.jsx)(o.code,{children:"/lib/python3.12/site-packages/langflow/langflow.db"})," (Python version may vary)"]}),"\n",(0,s.jsxs)(o.li,{children:[(0,s.jsxs)(o.strong,{children:["OSS macOS/Windows/Linux/WSL (",(0,s.jsx)(o.code,{children:"git clone"}),")"]}),": ",(0,s.jsx)(o.code,{children:"/src/backend/base/langflow/langflow.db"})]}),"\n"]}),"\n",(0,s.jsxs)(o.p,{children:["Alternatively, you can use an external PostgreSQL database for all of your Langflow storage.\nYou can also selectively use external storage for chat memory, separate from other Langflow storage.\nFor more information, see ",(0,s.jsx)(o.a,{href:"#configure-external-memory",children:"Configure external memory"})," and ",(0,s.jsx)(o.a,{href:"#store-chat-memory",children:"Store chat memory"}),"."]}),"\n",(0,s.jsx)(o.h2,{id:"local-langflow-database-tables",children:"Local Langflow database tables"}),"\n",(0,s.jsxs)(o.p,{children:["The following tables are stored in ",(0,s.jsx)(o.code,{children:"langflow.db"}),":"]}),"\n",(0,s.jsxs)(o.p,{children:["\u2022 ",(0,s.jsx)(o.strong,{children:"User"}),": Stores user account information including credentials, permissions, profiles, and user management settings. For more information, see ",(0,s.jsx)(o.a,{href:"/api-keys-and-authentication",children:"API keys and authentication"}),"."]}),"\n",(0,s.jsxs)(o.p,{children:["\u2022 ",(0,s.jsx)(o.strong,{children:"Flow"}),": Contains flow definitions, including nodes, edges, and components, stored as JSON or database records. For more information, see ",(0,s.jsx)(o.a,{href:"/concepts-flows",children:"Build flows"}),"."]}),"\n",(0,s.jsxs)(o.p,{children:["\u2022 ",(0,s.jsx)(o.strong,{children:"Message"}),": Stores chat messages and interactions that occur between components. For more information, see ",(0,s.jsx)(o.a,{href:"/data-types#message",children:"Message objects"})," and ",(0,s.jsx)(o.a,{href:"#store-chat-memory",children:"Store chat memory"}),"."]}),"\n",(0,s.jsxs)(o.p,{children:["\u2022 ",(0,s.jsx)(o.strong,{children:"Transaction"}),": Records execution history and results of flow runs. This information is used for ",(0,s.jsx)(o.a,{href:"/logging",children:"logging"}),"."]}),"\n",(0,s.jsxs)(o.p,{children:["\u2022 ",(0,s.jsx)(o.strong,{children:"ApiKey"}),": Manages Langflow API authentication keys. Component API keys are stored in the ",(0,s.jsx)(o.strong,{children:"Variables"})," table. For more information, see ",(0,s.jsx)(o.a,{href:"/api-keys-and-authentication",children:"API keys and authentication"}),"."]}),"\n",(0,s.jsxs)(o.p,{children:["\u2022 ",(0,s.jsx)(o.strong,{children:"Project"}),": Provides a structure for flow storage, including single-user projects and shared projects accessed by multiple users. For more information, see ",(0,s.jsx)(o.a,{href:"/concepts-flows#projects",children:"Manage flows in projects"}),"."]}),"\n",(0,s.jsxs)(o.p,{children:["\u2022 ",(0,s.jsx)(o.strong,{children:"Variables"}),": Stores global encrypted values and credentials. For more information, see ",(0,s.jsx)(o.a,{href:"/configuration-global-variables",children:"Global variables"}),"."]}),"\n",(0,s.jsxs)(o.p,{children:["\u2022 ",(0,s.jsx)(o.strong,{children:"VertexBuild"}),": Tracks the build status of individual nodes within flows. For more information, see ",(0,s.jsx)(o.a,{href:"/concepts-playground",children:"Test flows in the Playground"}),"."]}),"\n",(0,s.jsxs)(o.p,{children:["For more information, see the database models in the ",(0,s.jsx)(o.a,{href:"https://github.com/langflow-ai/langflow/tree/main/src/backend/base/langflow/services/database/models",children:"source code"}),"."]}),"\n",(0,s.jsx)(o.h2,{id:"configure-external-memory",children:"Configure external memory"}),"\n",(0,s.jsxs)(o.p,{children:["To replace the default Langflow SQLite database with another database, modify the ",(0,s.jsx)(o.code,{children:"LANGFLOW_DATABASE_URL"})," environment variable, and then start Langflow with your ",(0,s.jsx)(o.code,{children:".env"})," file:"]}),"\n",(0,s.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"LANGFLOW_DATABASE_URL=postgresql://user:password@localhost:5432/langflow",props:{}}]}],lang:"text"},annotations:[]}]}),"\n",(0,s.jsxs)(o.p,{children:["For an example, see ",(0,s.jsx)(o.a,{href:"/configuration-custom-database",children:"Configure an external PostgreSQL database"}),"."]}),"\n",(0,s.jsx)(o.h3,{id:"configure-the-external-database-connection",children:"Configure the external database connection"}),"\n",(0,s.jsx)(o.p,{children:"The following settings allow you to fine-tune your database connection pool and timeout settings:"}),"\n",(0,s.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:'LANGFLOW_DB_CONNECTION_SETTINGS=\'{"pool_size": 20, "max_overflow": 30, "pool_timeout": 30, "pool_pre_ping": true, "pool_recycle": 1800, "echo": false}\'',props:{}}]},{tokens:[{content:"LANGFLOW_DB_CONNECT_TIMEOUT=20",props:{}}]}],lang:"text"},annotations:[]}]}),"\n",(0,s.jsxs)(o.ul,{children:["\n",(0,s.jsxs)(o.li,{children:[(0,s.jsx)(o.code,{children:"pool_size"}),": Maximum number of database connections to keep in the pool (default: 20)"]}),"\n",(0,s.jsxs)(o.li,{children:[(0,s.jsx)(o.code,{children:"max_overflow"}),": Maximum number of connections that can be created beyond the pool_size (default: 30)"]}),"\n",(0,s.jsxs)(o.li,{children:[(0,s.jsx)(o.code,{children:"pool_timeout"}),": Number of seconds to wait before timing out on getting a connection from the pool (default: 30)"]}),"\n",(0,s.jsxs)(o.li,{children:[(0,s.jsx)(o.code,{children:"pool_pre_ping"}),": If true, the pool tests connections for liveness upon each checkout (default: true)"]}),"\n",(0,s.jsxs)(o.li,{children:[(0,s.jsx)(o.code,{children:"pool_recycle"}),": Number of seconds after which a connection is automatically recycled (default: 1800, or 30 minutes)"]}),"\n",(0,s.jsxs)(o.li,{children:[(0,s.jsx)(o.code,{children:"echo"}),": If true, SQL queries are logged for debugging purposes (default: false)"]}),"\n",(0,s.jsxs)(o.li,{children:[(0,s.jsx)(o.code,{children:"LANGFLOW_DB_CONNECT_TIMEOUT"}),": Maximum number of seconds to wait when establishing a new database connection (default: 20)"]}),"\n"]}),"\n",(0,s.jsx)(o.h2,{id:"configure-cache-memory",children:"Configure cache memory"}),"\n",(0,s.jsx)(o.p,{children:"The default Langflow caching behavior is an asynchronous, in-memory cache."}),"\n",(0,s.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"LANGFLOW_LANGCHAIN_CACHE=InMemoryCache",props:{}}]},{tokens:[{content:"LANGFLOW_CACHE_TYPE=Async",props:{}}]}],lang:"text"},annotations:[]}]}),"\n",(0,s.jsx)(o.p,{children:"Alternative caching options can be configured, but options other than the default asynchronous, in-memory cache aren't supported.\nThe default behavior is suitable for most use cases."}),"\n",(0,s.jsxs)(o.p,{children:["For other options, see the ",(0,s.jsx)(o.code,{children:"LANGFLOW_CACHE_TYPE"})," ",(0,s.jsx)(o.a,{href:"/environment-variables",children:"environment variable"}),"."]}),"\n",(0,s.jsx)(o.h2,{id:"store-chat-memory",children:"Store chat memory"}),"\n",(0,s.jsxs)(o.p,{children:["Chat-based flows with a ",(0,s.jsx)(o.strong,{children:"Chat Input"})," or ",(0,s.jsx)(o.strong,{children:"Chat Output"})," component produce chat history that is stored in the Langflow ",(0,s.jsx)(o.code,{children:"messages"})," table.\nAt minimum, this serves as a chat log, but it isn't functionally the same as chat memory that provides historical context to an LLM."]}),"\n",(0,s.jsxs)(o.p,{children:["To store and retrieve chat memories in flows, you can use a ",(0,s.jsx)(o.strong,{children:"Message History"})," component or the ",(0,s.jsx)(o.strong,{children:"Agent"})," component's built-in chat memory."]}),"\n",(0,s.jsxs)(n,{children:[(0,s.jsx)("summary",{children:"How does chat memory work?"}),(0,s.jsx)(o.p,{children:"Chat memory is a cache for an LLM or agent to preserve past conversations to retain and reference that context in future interactions.\nFor example, if a user has already told the LLM their name, the LLM can retrieve that information from chat memory rather than asking the user to repeat themselves in future conversations or messages."}),(0,s.jsx)(o.p,{children:"Chat memory is distinct from vector store memory because it is built specifically for storing and retrieving chat messages from databases."}),(0,s.jsxs)(o.p,{children:["Components that support chat memory (such as the ",(0,s.jsx)(o.strong,{children:"Agent"})," and ",(0,s.jsx)(o.strong,{children:"Message History"})," components) provide access to their respective databases ",(0,s.jsx)(o.em,{children:"as memory"}),".\nRetrieval as memory is an important distinction for LLMs and agents because this storage and retrieval mechanism is specifically designed to recall context from past conversations.\nUnlike vector stores, which are designed for semantic search and retrieval of text chunks, chat memory is designed to store and retrieve chat messages in a way that is optimized for conversation history."]})]}),"\n",(0,s.jsx)(o.h3,{id:"session-id-and-chat-memory",children:"Session ID and chat memory"}),"\n",(0,s.jsxs)(o.p,{children:["Chat history and memories are grouped by ",(0,s.jsxs)(o.a,{href:"/session-id",children:["session ID (",(0,s.jsx)(o.code,{children:"session_id"}),")"]}),"."]}),"\n",(0,s.jsx)(o.p,{children:"The default session ID is the flow ID, which means that all chat messages for a flow are stored under the same session ID as one large chat session."}),"\n",(0,s.jsx)(o.p,{children:"For better segregation of chat memory, especially in flows used by multiple users, consider using custom session IDs.\nFor example, if you use user IDs as session IDs, then each user's chat history is stored separately, isolating the context of their chats from other users' chats."}),"\n",(0,s.jsx)(o.h3,{id:"chat-memory-options",children:"Chat memory options"}),"\n",(0,s.jsx)(o.p,{children:"Where and how chat memory is stored depends on the components used in your flow:"}),"\n",(0,s.jsxs)(o.ul,{children:["\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:[(0,s.jsx)(o.strong,{children:"Agent component"}),": This component has built-in chat memory that is enabled by default.\nThis memory allows the agent to retrieve and reference messages from previous conversations associated with the same session ID.\nAll messages are stored in ",(0,s.jsx)(o.a,{href:"#storage-options-and-paths",children:"Langflow storage"}),", and the component provides minimal memory configuration options, such as the number of messages to retrieve."]}),"\n",(0,s.jsxs)(o.p,{children:["The ",(0,s.jsx)(o.strong,{children:"Agent"})," component's built-in chat memory is sufficient for most use cases."]}),"\n",(0,s.jsxs)(o.p,{children:["If you want to use external chat memory storage, retrieve memories outside the context of a chat, or use chat memory with a language model component (not an agent), you must use the ",(0,s.jsx)(o.strong,{children:"Message History"})," component (with or without a third-party chat memory component)."]}),"\n"]}),"\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:[(0,s.jsx)(o.strong,{children:"Message History component"}),": By default, this component stores and retrieves memories from Langflow storage, unless you attach a third-party chat memory component. It provides a few more options for sorting and filtering memories, although most of these options are also built-in to the ",(0,s.jsx)(o.strong,{children:"Agent"})," component as configurable or fixed parameters."]}),"\n",(0,s.jsxs)(o.p,{children:["You can use the ",(0,s.jsx)(o.strong,{children:"Message History"})," component with or without a language model or agent.\nFor example, if you need to retrieve data from memories outside of chat, you can use the ",(0,s.jsx)(o.strong,{children:"Message History"})," component to fetch that data directly from your chat memory database without feeding it into a chat."]}),"\n"]}),"\n",(0,s.jsxs)(o.li,{children:["\n",(0,s.jsxs)(o.p,{children:[(0,s.jsx)(o.strong,{children:"Third-party chat memory components"}),": Use one of these components only if you need to store or retrieve chat memories from a dedicated external chat memory database.\nTypically, this is necessary only if you have specific storage needs that aren't met by Langflow storage.\nFor example, if you want to manage chat memory data by directly working with the database, or if you want to use a different database than the default Langflow storage."]}),"\n"]}),"\n"]}),"\n",(0,s.jsxs)(o.p,{children:["For more information and examples, see ",(0,s.jsxs)(o.a,{href:"/components-helpers#message-history",children:[(0,s.jsx)(o.strong,{children:"Message History"})," component"]})," and ",(0,s.jsx)(o.a,{href:"/agents#agent-memory",children:"Agent memory"}),"."]}),"\n",(0,s.jsx)(o.h2,{id:"see-also",children:"See also"}),"\n",(0,s.jsxs)(o.ul,{children:["\n",(0,s.jsx)(o.li,{children:(0,s.jsx)(o.a,{href:"/concepts-file-management",children:"Langflow file management"})}),"\n",(0,s.jsx)(o.li,{children:(0,s.jsx)(o.a,{href:"/logging",children:"Langflow logs"})}),"\n"]})]})}function g(e={}){const{wrapper:o}={...(0,r.R)(),...e.components};return o?(0,s.jsx)(o,{...e,children:(0,s.jsx)(u,{...e})}):u(e)}function f(e,o){throw new Error("Expected "+(o?"component":"object")+" `"+e+"` to be defined: you likely forgot to import, pass, or provide it.")}}}]); 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}'}}),"\n",(0,t.jsx)(n.p,{children:"Langflow provides flexible memory management options for storage and retrieval of data relevant to your flows and your Langflow server.\nThis includes essential Langflow database tables, file management, and caching, as well as chat memory."}),"\n",(0,t.jsx)(n.h2,{id:"storage-options-and-paths",children:"Storage options and paths"}),"\n",(0,t.jsx)(n.p,{children:"Langflow supports both local memory and external memory options."}),"\n",(0,t.jsxs)(n.p,{children:["Langflow's default storage option is a ",(0,t.jsx)(n.a,{href:"https://www.sqlite.org/",children:"SQLite"})," database stored in your system's cache directory.\nThe default storage path depends on your operation system and installation method:"]}),"\n",(0,t.jsxs)(n.ul,{children:["\n",(0,t.jsxs)(n.li,{children:[(0,t.jsx)(n.strong,{children:"macOS Desktop"}),": ",(0,t.jsx)(n.code,{children:"/Users//.langflow/data/database.db"})]}),"\n",(0,t.jsxs)(n.li,{children:[(0,t.jsx)(n.strong,{children:"Windows Desktop"}),": ",(0,t.jsx)(n.code,{children:"C:\\Users\\\\AppData\\Roaming\\com.Langflow\\data\\langflow.db"})]}),"\n",(0,t.jsxs)(n.li,{children:[(0,t.jsxs)(n.strong,{children:["OSS macOS/Windows/Linux/WSL (",(0,t.jsx)(n.code,{children:"uv pip install"}),")"]}),": ",(0,t.jsx)(n.code,{children:"/lib/python3.12/site-packages/langflow/langflow.db"})," (Python version may vary)"]}),"\n",(0,t.jsxs)(n.li,{children:[(0,t.jsxs)(n.strong,{children:["OSS macOS/Windows/Linux/WSL (",(0,t.jsx)(n.code,{children:"git clone"}),")"]}),": ",(0,t.jsx)(n.code,{children:"/src/backend/base/langflow/langflow.db"})]}),"\n"]}),"\n",(0,t.jsxs)(n.p,{children:["Alternatively, you can use an external PostgreSQL database for all of your Langflow storage.\nYou can also selectively use external storage for chat memory, separate from other Langflow storage.\nFor more information, see ",(0,t.jsx)(n.a,{href:"#configure-external-memory",children:"Configure external memory"})," and ",(0,t.jsx)(n.a,{href:"#store-chat-memory",children:"Store chat memory"}),"."]}),"\n",(0,t.jsx)(n.h2,{id:"local-langflow-database-tables",children:"Local Langflow database tables"}),"\n",(0,t.jsxs)(n.p,{children:["The following tables are stored in ",(0,t.jsx)(n.code,{children:"langflow.db"}),":"]}),"\n",(0,t.jsxs)(n.p,{children:["\u2022 ",(0,t.jsx)(n.strong,{children:"ApiKey"}),": Manages Langflow API authentication keys. Component API keys are stored in the ",(0,t.jsx)(n.strong,{children:"Variables"})," table. For more information, see ",(0,t.jsx)(n.a,{href:"/api-keys-and-authentication",children:"API keys and authentication"}),"."]}),"\n",(0,t.jsxs)(n.p,{children:["\u2022 ",(0,t.jsx)(n.strong,{children:"File"}),": Stores metadata for files uploaded to Langflow's file management system, including file names, paths, sizes, and storage providers. For more information, see ",(0,t.jsx)(n.a,{href:"/concepts-file-management",children:"Manage files"}),"."]}),"\n",(0,t.jsxs)(n.p,{children:["\u2022 ",(0,t.jsx)(n.strong,{children:"Flow"}),": Contains flow definitions, including nodes, edges, and components, stored as JSON or database records. For more information, see ",(0,t.jsx)(n.a,{href:"/concepts-flows",children:"Build flows"}),"."]}),"\n",(0,t.jsxs)(n.p,{children:["\u2022 ",(0,t.jsx)(n.strong,{children:"Folder"}),": Provides a structure for flow storage, including single-user folders and shared folders accessed by multiple users. For more information, see ",(0,t.jsx)(n.a,{href:"/concepts-flows#projects",children:"Manage flows in projects"}),"."]}),"\n",(0,t.jsxs)(n.p,{children:["\u2022 ",(0,t.jsx)(n.strong,{children:"Message"}),": Stores chat messages and interactions that occur between components. For more information, see ",(0,t.jsx)(n.a,{href:"/data-types#message",children:"Message objects"})," and ",(0,t.jsx)(n.a,{href:"#store-chat-memory",children:"Store chat memory"}),"."]}),"\n",(0,t.jsxs)(n.p,{children:["\u2022 ",(0,t.jsx)(n.strong,{children:"Transactions"}),": Records execution history and results of flow runs. This information is used for ",(0,t.jsx)(n.a,{href:"/logging",children:"logging"}),"."]}),"\n",(0,t.jsxs)(n.p,{children:["\u2022 ",(0,t.jsx)(n.strong,{children:"User"}),": Stores user account information including credentials, permissions, profiles, and user management settings. For more information, see ",(0,t.jsx)(n.a,{href:"/api-keys-and-authentication",children:"API keys and authentication"}),"."]}),"\n",(0,t.jsxs)(n.p,{children:["\u2022 ",(0,t.jsx)(n.strong,{children:"Variables"}),": Stores global encrypted values and credentials. For more information, see ",(0,t.jsx)(n.a,{href:"/configuration-global-variables",children:"Global variables"}),"."]}),"\n",(0,t.jsxs)(n.p,{children:["\u2022 ",(0,t.jsx)(n.strong,{children:"VertexBuild"}),": Tracks the build status of individual nodes within flows. For more information, see ",(0,t.jsx)(n.a,{href:"/concepts-playground",children:"Test flows in the Playground"}),"."]}),"\n",(0,t.jsxs)(n.p,{children:["For more information, see the database models in the ",(0,t.jsx)(n.a,{href:"https://github.com/langflow-ai/langflow/tree/main/src/backend/base/langflow/services/database/models",children:"source code"}),"."]}),"\n",(0,t.jsx)(n.h2,{id:"configure-external-memory",children:"Configure external memory"}),"\n",(0,t.jsxs)(n.p,{children:["To replace the default Langflow SQLite database with another database, modify the ",(0,t.jsx)(n.code,{children:"LANGFLOW_DATABASE_URL"})," environment variable, and then start Langflow with your ",(0,t.jsx)(n.code,{children:".env"})," file:"]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"LANGFLOW_DATABASE_URL=postgresql://user:password@localhost:5432/langflow",props:{}}]}],lang:"text"},annotations:[]}]}),"\n",(0,t.jsxs)(n.p,{children:["For an example, see ",(0,t.jsx)(n.a,{href:"/configuration-custom-database",children:"Configure an external PostgreSQL database"}),"."]}),"\n",(0,t.jsxs)(n.p,{children:["The ",(0,t.jsx)(n.code,{children:"LANGFLOW_DB_CONNECTION_SETTINGS"})," is a JSON configuration for database connection pool settings that allows you to fine-tune your database connection pool and timeout settings."]}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"LANGFLOW_DB_CONNECTION_SETTINGS",props:{style:{color:"#C9D1D9"}}},{content:"=",props:{style:{color:"#FF7B72"}}},{content:'\'{"pool_size": 20, "max_overflow": 30, "pool_timeout": 30, "pool_pre_ping": true, "pool_recycle": 1800, "echo": false}\'',props:{style:{color:"#A5D6FF"}}}]}],lang:"bash"},annotations:[]}]}),"\n",(0,t.jsx)(n.h3,{id:"connection-pool-parameters",children:"Connection pool parameters"}),"\n",(0,t.jsxs)(n.ul,{children:["\n",(0,t.jsxs)(n.li,{children:[(0,t.jsx)(n.code,{children:"pool_size"}),": Maximum number of database connections to keep in the pool. Default: 20 connections."]}),"\n",(0,t.jsxs)(n.li,{children:[(0,t.jsx)(n.code,{children:"max_overflow"}),": Maximum number of connections that can be created beyond the pool_size. Default: 30 connections."]}),"\n",(0,t.jsxs)(n.li,{children:[(0,t.jsx)(n.code,{children:"pool_timeout"}),": Number of seconds to wait before timing out on getting a connection from the pool. Default: 30 seconds."]}),"\n",(0,t.jsxs)(n.li,{children:[(0,t.jsx)(n.code,{children:"pool_pre_ping"}),": If ",(0,t.jsx)(n.code,{children:"true"}),", the pool tests connections for liveness upon each checkout. Default: ",(0,t.jsx)(n.code,{children:"true"}),"."]}),"\n",(0,t.jsxs)(n.li,{children:[(0,t.jsx)(n.code,{children:"pool_recycle"}),": Number of seconds after which a connection is automatically recycled. Default: 1800 seconds (30 minutes)."]}),"\n",(0,t.jsxs)(n.li,{children:[(0,t.jsx)(n.code,{children:"echo"}),": If ",(0,t.jsx)(n.code,{children:"true"}),", SQL queries are logged for debugging purposes. Default: ",(0,t.jsx)(n.code,{children:"false"}),"."]}),"\n"]}),"\n",(0,t.jsx)(n.h2,{id:"configure-cache-memory",children:"Configure cache memory"}),"\n",(0,t.jsx)(n.p,{children:"The default Langflow caching behavior is an asynchronous, in-memory cache."}),"\n",(0,t.jsx)(d.Code,{codeConfig:h,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"LANGFLOW_LANGCHAIN_CACHE=InMemoryCache",props:{}}]},{tokens:[{content:"LANGFLOW_CACHE_TYPE=async",props:{}}]}],lang:"text"},annotations:[]}]}),"\n",(0,t.jsx)(n.p,{children:"Langflow officially supports only the default asynchronous, in-memory cache. Other backends are experimental and may change without notice.\nThe default behavior is suitable for most use cases."}),"\n",(0,t.jsx)(n.admonition,{type:"warning",children:(0,t.jsx)(n.p,{children:"Redis and other external cache settings are experimental and not officially supported."})}),"\n",(0,t.jsx)(n.h3,{id:"cache-environment-variables",children:"Cache environment variables"}),"\n",(0,t.jsxs)(n.table,{children:[(0,t.jsx)(n.thead,{children:(0,t.jsxs)(n.tr,{children:[(0,t.jsx)(n.th,{children:"Variable"}),(0,t.jsx)(n.th,{children:"Type"}),(0,t.jsx)(n.th,{children:"Default"}),(0,t.jsx)(n.th,{children:"Description"})]})}),(0,t.jsxs)(n.tbody,{children:[(0,t.jsxs)(n.tr,{children:[(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"LANGFLOW_CACHE_TYPE"})}),(0,t.jsx)(n.td,{children:"String"}),(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"async"})}),(0,t.jsx)(n.td,{children:"Set the cache type for Langflow's internal caching system."})]}),(0,t.jsxs)(n.tr,{children:[(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"LANGFLOW_LANGCHAIN_CACHE"})}),(0,t.jsx)(n.td,{children:"String"}),(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"InMemoryCache"})}),(0,t.jsx)(n.td,{children:"Set the cache type for Langchain's caching system."})]}),(0,t.jsxs)(n.tr,{children:[(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"LANGFLOW_REDIS_HOST"})}),(0,t.jsx)(n.td,{children:"String"}),(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"localhost"})}),(0,t.jsx)(n.td,{children:"Redis server hostname."})]}),(0,t.jsxs)(n.tr,{children:[(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"LANGFLOW_REDIS_PORT"})}),(0,t.jsx)(n.td,{children:"Integer"}),(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"6379"})}),(0,t.jsx)(n.td,{children:"Redis server port."})]}),(0,t.jsxs)(n.tr,{children:[(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"LANGFLOW_REDIS_DB"})}),(0,t.jsx)(n.td,{children:"Integer"}),(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"0"})}),(0,t.jsx)(n.td,{children:"Redis database number."})]}),(0,t.jsxs)(n.tr,{children:[(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"LANGFLOW_REDIS_CACHE_EXPIRE"})}),(0,t.jsx)(n.td,{children:"Integer"}),(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"3600"})}),(0,t.jsx)(n.td,{children:"Cache expiration time in seconds."})]}),(0,t.jsxs)(n.tr,{children:[(0,t.jsx)(n.td,{children:(0,t.jsx)(n.code,{children:"LANGFLOW_REDIS_PASSWORD"})}),(0,t.jsx)(n.td,{children:"String"}),(0,t.jsx)(n.td,{children:"Not set"}),(0,t.jsx)(n.td,{children:"Redis authentication password (optional)."})]})]})]}),"\n",(0,t.jsx)(n.h2,{id:"store-chat-memory",children:"Store chat memory"}),"\n",(0,t.jsxs)(n.p,{children:["Chat-based flows with a ",(0,t.jsx)(n.strong,{children:"Chat Input"})," or ",(0,t.jsx)(n.strong,{children:"Chat Output"})," component produce chat history that is stored in the Langflow ",(0,t.jsx)(n.code,{children:"messages"})," table.\nAt minimum, this serves as a chat log, but it isn't functionally the same as chat memory that provides historical context to an LLM."]}),"\n",(0,t.jsxs)(n.p,{children:["To store and retrieve chat memories in flows, you can use a ",(0,t.jsx)(n.strong,{children:"Message History"})," component or the ",(0,t.jsx)(n.strong,{children:"Agent"})," component's built-in chat memory."]}),"\n",(0,t.jsxs)(o,{children:[(0,t.jsx)("summary",{children:"How does chat memory work?"}),(0,t.jsx)(n.p,{children:"Chat memory is a cache for an LLM or agent to preserve past conversations to retain and reference that context in future interactions.\nFor example, if a user has already told the LLM their name, the LLM can retrieve that information from chat memory rather than asking the user to repeat themselves in future conversations or messages."}),(0,t.jsx)(n.p,{children:"Chat memory is distinct from vector store memory because it is built specifically for storing and retrieving chat messages from databases."}),(0,t.jsxs)(n.p,{children:["Components that support chat memory (such as the ",(0,t.jsx)(n.strong,{children:"Agent"})," and ",(0,t.jsx)(n.strong,{children:"Message History"})," components) provide access to their respective databases ",(0,t.jsx)(n.em,{children:"as memory"}),".\nRetrieval as memory is an important distinction for LLMs and agents because this storage and retrieval mechanism is specifically designed to recall context from past conversations.\nUnlike vector stores, which are designed for semantic search and retrieval of text chunks, chat memory is designed to store and retrieve chat messages in a way that is optimized for conversation history."]})]}),"\n",(0,t.jsx)(n.h3,{id:"session-id-and-chat-memory",children:"Session ID and chat memory"}),"\n",(0,t.jsxs)(n.p,{children:["Chat history and memories are grouped by ",(0,t.jsxs)(n.a,{href:"/session-id",children:["session ID (",(0,t.jsx)(n.code,{children:"session_id"}),")"]}),"."]}),"\n",(0,t.jsx)(n.p,{children:"The default session ID is the flow ID, which means that all chat messages for a flow are stored under the same session ID as one large chat session."}),"\n",(0,t.jsx)(n.p,{children:"For better segregation of chat memory, especially in flows used by multiple users, consider using custom session IDs.\nFor example, if you use user IDs as session IDs, then each user's chat history is stored separately, isolating the context of their chats from other users' chats."}),"\n",(0,t.jsx)(n.h3,{id:"chat-memory-options",children:"Chat memory options"}),"\n",(0,t.jsx)(n.p,{children:"Where and how chat memory is stored depends on the components used in your flow:"}),"\n",(0,t.jsxs)(n.ul,{children:["\n",(0,t.jsxs)(n.li,{children:["\n",(0,t.jsxs)(n.p,{children:[(0,t.jsx)(n.strong,{children:"Agent component"}),": This component has built-in chat memory that is enabled by default.\nThis memory allows the agent to retrieve and reference messages from previous conversations associated with the same session ID.\nAll messages are stored in ",(0,t.jsx)(n.a,{href:"#storage-options-and-paths",children:"Langflow storage"}),", and the component provides minimal memory configuration options, such as the number of messages to retrieve."]}),"\n",(0,t.jsxs)(n.p,{children:["The ",(0,t.jsx)(n.strong,{children:"Agent"})," component's built-in chat memory is sufficient for most use cases."]}),"\n",(0,t.jsxs)(n.p,{children:["If you want to use external chat memory storage, retrieve memories outside the context of a chat, or use chat memory with a language model component (not an agent), you must use the ",(0,t.jsx)(n.strong,{children:"Message History"})," component (with or without a third-party chat memory component)."]}),"\n"]}),"\n",(0,t.jsxs)(n.li,{children:["\n",(0,t.jsxs)(n.p,{children:[(0,t.jsx)(n.strong,{children:"Message History component"}),": By default, this component stores and retrieves memories from Langflow storage, unless you attach a third-party chat memory component. It provides a few more options for sorting and filtering memories, although most of these options are also built-in to the ",(0,t.jsx)(n.strong,{children:"Agent"})," component as configurable or fixed parameters."]}),"\n",(0,t.jsxs)(n.p,{children:["You can use the ",(0,t.jsx)(n.strong,{children:"Message History"})," component with or without a language model or agent.\nFor example, if you need to retrieve data from memories outside of chat, you can use the ",(0,t.jsx)(n.strong,{children:"Message History"})," component to fetch that data directly from your chat memory database without feeding it into a chat."]}),"\n"]}),"\n",(0,t.jsxs)(n.li,{children:["\n",(0,t.jsxs)(n.p,{children:[(0,t.jsx)(n.strong,{children:"Third-party chat memory components"}),": Use one of these components only if you need to store or retrieve chat memories from a dedicated external chat memory database.\nTypically, this is necessary only if you have specific storage needs that aren't met by Langflow storage.\nFor example, if you want to manage chat memory data by directly working with the database, or if you want to use a different database than the default Langflow storage."]}),"\n"]}),"\n"]}),"\n",(0,t.jsxs)(n.p,{children:["For more information and examples, see ",(0,t.jsxs)(n.a,{href:"/components-helpers#message-history",children:[(0,t.jsx)(n.strong,{children:"Message History"})," component"]})," and ",(0,t.jsx)(n.a,{href:"/agents#agent-memory",children:"Agent memory"}),"."]}),"\n",(0,t.jsx)(n.h2,{id:"see-also",children:"See also"}),"\n",(0,t.jsxs)(n.ul,{children:["\n",(0,t.jsx)(n.li,{children:(0,t.jsx)(n.a,{href:"/concepts-file-management",children:"Langflow file management"})}),"\n",(0,t.jsx)(n.li,{children:(0,t.jsx)(n.a,{href:"/logging",children:"Langflow logs"})}),"\n"]})]})}function f(e={}){const{wrapper:n}={...(0,r.R)(),...e.components};return n?(0,t.jsx)(n,{...e,children:(0,t.jsx)(g,{...e})}):g(e)}function u(e,n){throw new Error("Expected "+(n?"component":"object")+" `"+e+"` to be defined: you likely forgot to import, pass, or provide it.")}}}]); \ No newline at end of file diff --git a/assets/js/e6c6a4d2.8ff2d8ff.js b/assets/js/e6c6a4d2.051146fc.js similarity index 56% rename from assets/js/e6c6a4d2.8ff2d8ff.js rename to assets/js/e6c6a4d2.051146fc.js index 44a56e58e2..661a99e170 100644 --- a/assets/js/e6c6a4d2.8ff2d8ff.js +++ b/assets/js/e6c6a4d2.051146fc.js @@ -1 +1 @@ -"use strict";(self.webpackChunklangflow_docs=self.webpackChunklangflow_docs||[]).push([[8504],{28453:(e,t,n)=>{n.d(t,{R:()=>a,x:()=>l});var s=n(96540);const i={},o=s.createContext(i);function a(e){const t=s.useContext(o);return s.useMemo(function(){return"function"==typeof e?e(t):{...t,...e}},[t,e])}function l(e){let t;return t=e.disableParentContext?"function"==typeof e.components?e.components(i):e.components||i:a(e.components),s.createElement(o.Provider,{value:t},e.children)}},94910:(e,t,n)=>{n.r(t),n.d(t,{contentTitle:()=>l,default:()=>d,frontMatter:()=>a,metadata:()=>s,toc:()=>r});const s=JSON.parse('{"type":"api","id":"experimental-run-flow","title":"Experimental Run Flow","description":"","slug":"/experimental-run-flow","frontMatter":{},"api":{"tags":["Base"],"description":"Executes a specified flow by ID with optional input values, output selection, tweaks, and streaming capability.\\n\\nThis endpoint supports running flows with caching to enhance performance and efficiency.\\n\\n### Parameters:\\n- `flow_id` (str): The unique identifier of the flow to be executed.\\n- `inputs` (List[InputValueRequest], optional): A list of inputs specifying the input values and components\\n for the flow. Each input can target specific components and provide custom values.\\n- `outputs` (List[str], optional): A list of output names to retrieve from the executed flow.\\n If not provided, all outputs are returned.\\n- `tweaks` (Optional[Tweaks], optional): A dictionary of tweaks to customize the flow execution.\\n The tweaks can be used to modify the flow\'s parameters and components.\\n Tweaks can be overridden by the input values.\\n- `stream` (bool, optional): Specifies whether the results should be streamed. Defaults to False.\\n- `session_id` (Union[None, str], optional): An optional session ID to utilize existing session data for the flow\\n execution.\\n- `api_key_user` (User): The user associated with the current API key. Automatically resolved from the API key.\\n\\n### Returns:\\nA `RunResponse` object containing the selected outputs (or all if not specified) of the executed flow\\nand the session ID.\\nThe structure of the response accommodates multiple inputs, providing a nested list of outputs for each input.\\n\\n### Raises:\\nHTTPException: Indicates issues with finding the specified flow, invalid input formats, or internal errors during\\nflow execution.\\n\\n### Example usage:\\n```json\\nPOST /run/flow_id\\nx-api-key: YOUR_API_KEY\\nPayload:\\n{\\n \\"inputs\\": [\\n {\\"components\\": [\\"component1\\"], \\"input_value\\": \\"value1\\"},\\n {\\"components\\": [\\"component3\\"], \\"input_value\\": \\"value2\\"}\\n ],\\n \\"outputs\\": [\\"Component Name\\", \\"component_id\\"],\\n \\"tweaks\\": {\\"parameter_name\\": \\"value\\", \\"Component Name\\": {\\"parameter_name\\": \\"value\\"}, \\"component_id\\": {\\"parameter_name\\": \\"value\\"}}\\n \\"stream\\": false\\n}\\n```\\n\\nThis endpoint facilitates complex flow executions with customized inputs, outputs, and configurations,\\ncatering to diverse application requirements.","operationId":"experimental_run_flow_api_v1_run_advanced__flow_id__post","security":[{"API key query":[]},{"API key header":[]}],"parameters":[{"name":"flow_id","in":"path","required":true,"schema":{"type":"string","format":"uuid","title":"Flow Id"}}],"requestBody":{"content":{"application/json":{"schema":{"properties":{"inputs":{"anyOf":[{"items":{"properties":{"components":{"anyOf":[{"items":{"type":"string"},"type":"array"},{"type":"null"}],"title":"Components","default":[]},"input_value":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Input Value"},"session":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Session"},"type":{"anyOf":[{"type":"string","enum":["chat","text","any"]},{"type":"null"}],"title":"Type","description":"Defines on which components the input value should be applied. \'any\' applies to all input components.","default":"any"}},"additionalProperties":false,"type":"object","title":"InputValueRequest","examples":[{"components":["components_id","Component Name"],"input_value":"input_value","session":"session_id"},{"components":["Component Name"],"input_value":"input_value"},{"input_value":"input_value"},{"components":["Component Name"],"input_value":"input_value","session":"session_id"},{"input_value":"input_value","session":"session_id"},{"input_value":"input_value","type":"chat"},{"input_value":"{\\"key\\": \\"value\\"}","type":"json"}]},"type":"array"},{"type":"null"}],"title":"Inputs"},"outputs":{"anyOf":[{"items":{"type":"string"},"type":"array"},{"type":"null"}],"title":"Outputs"},"tweaks":{"anyOf":[{"additionalProperties":{"anyOf":[{"type":"string"},{"type":"object"}]},"type":"object","title":"Tweaks","description":"A dictionary of tweaks to adjust the flow\'s execution. 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b/components-agents.html index b807239af2..d6866e00cd 100644 --- a/components-agents.html +++ b/components-agents.html @@ -23,7 +23,7 @@ - + diff --git a/components-bundle-components.html b/components-bundle-components.html index 8c0826d403..58507298fc 100644 --- a/components-bundle-components.html +++ b/components-bundle-components.html @@ -23,7 +23,7 @@ - + diff --git a/components-custom-components.html b/components-custom-components.html index 3a595bcbf2..bd340cefd2 100644 --- a/components-custom-components.html +++ b/components-custom-components.html @@ -23,7 +23,7 @@ - + diff --git a/components-data.html b/components-data.html index 20c2ea45b9..cb946889a2 100644 --- a/components-data.html +++ b/components-data.html @@ -23,7 +23,7 @@ - + diff --git a/components-embedding-models.html b/components-embedding-models.html index 9f4445deed..fe33b5b788 100644 --- a/components-embedding-models.html +++ b/components-embedding-models.html @@ -23,7 +23,7 @@ - + diff --git a/components-helpers.html b/components-helpers.html index 0cf6bd0d2b..d0bea7eb08 100644 --- a/components-helpers.html +++ b/components-helpers.html @@ -23,7 +23,7 @@ - + diff --git a/components-io.html b/components-io.html index 624158561f..8744f7e1d9 100644 --- a/components-io.html +++ b/components-io.html @@ -23,7 +23,7 @@ - + diff --git a/components-logic.html b/components-logic.html index 5129523ad6..e031a56277 100644 --- a/components-logic.html +++ b/components-logic.html @@ -23,7 +23,7 @@ - + diff --git a/components-memories.html b/components-memories.html index 6001554999..f7d09dcab1 100644 --- a/components-memories.html +++ b/components-memories.html @@ -23,7 +23,7 @@ - + diff --git a/components-models.html b/components-models.html index baea029eac..b27b0a8c79 100644 --- a/components-models.html +++ b/components-models.html @@ -23,7 +23,7 @@ - + diff --git a/components-processing.html b/components-processing.html index 7e00259674..94b0ce22a0 100644 --- a/components-processing.html +++ b/components-processing.html @@ -23,7 +23,7 @@ - + diff --git a/components-prompts.html b/components-prompts.html index d95c79c823..a9f6214f75 100644 --- a/components-prompts.html +++ b/components-prompts.html @@ -23,7 +23,7 @@ - + diff --git a/components-tools.html b/components-tools.html index 0df3337d6d..c859e087b5 100644 --- a/components-tools.html +++ b/components-tools.html @@ -23,7 +23,7 @@ - + diff --git a/components-vector-stores.html b/components-vector-stores.html index d3a6f1e386..351ad824a8 100644 --- a/components-vector-stores.html +++ b/components-vector-stores.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-components.html b/concepts-components.html index 0a77b479eb..dd7159d948 100644 --- a/concepts-components.html +++ b/concepts-components.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-file-management.html b/concepts-file-management.html index e20043e0ce..12a178cdef 100644 --- a/concepts-file-management.html +++ b/concepts-file-management.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-flows-import.html b/concepts-flows-import.html index aaac17416f..89d369482c 100644 --- a/concepts-flows-import.html +++ b/concepts-flows-import.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-flows.html b/concepts-flows.html index 589ccbd492..df703046a9 100644 --- a/concepts-flows.html +++ b/concepts-flows.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-overview.html b/concepts-overview.html index 9e7cb8b47f..a4d8e3b861 100644 --- a/concepts-overview.html +++ b/concepts-overview.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-playground.html b/concepts-playground.html index c454585448..cf9de1df66 100644 --- a/concepts-playground.html +++ b/concepts-playground.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-publish.html b/concepts-publish.html index bf7a30e86d..c092c531fd 100644 --- a/concepts-publish.html +++ b/concepts-publish.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-voice-mode.html b/concepts-voice-mode.html index c21a05eadb..1e6c3a9ebb 100644 --- a/concepts-voice-mode.html +++ b/concepts-voice-mode.html @@ -23,7 +23,7 @@ - + diff --git a/configuration-cli.html b/configuration-cli.html index ad89a045d2..e742e3fa7e 100644 --- a/configuration-cli.html +++ b/configuration-cli.html @@ -23,7 +23,7 @@ - + diff --git a/configuration-custom-database.html b/configuration-custom-database.html index 6cc271aa48..b5cad5bbb2 100644 --- a/configuration-custom-database.html +++ b/configuration-custom-database.html @@ -23,7 +23,7 @@ - + diff --git a/configuration-global-variables.html b/configuration-global-variables.html index 3651107cc9..fe11542d94 100644 --- a/configuration-global-variables.html +++ b/configuration-global-variables.html @@ -23,7 +23,7 @@ - + diff --git a/contributing-bundles.html b/contributing-bundles.html index b533f484b9..765759b6c8 100644 --- a/contributing-bundles.html +++ b/contributing-bundles.html @@ -23,7 +23,7 @@ - + diff --git a/contributing-community.html b/contributing-community.html index 84bffc80db..d065687ebe 100644 --- a/contributing-community.html +++ b/contributing-community.html @@ -23,7 +23,7 @@ - + diff --git a/contributing-component-tests.html b/contributing-component-tests.html index f3566885cd..95b6437c12 100644 --- a/contributing-component-tests.html +++ b/contributing-component-tests.html @@ -23,7 +23,7 @@ - + diff --git a/contributing-components.html b/contributing-components.html index 34b785675a..b5270ddfe9 100644 --- a/contributing-components.html +++ b/contributing-components.html @@ -23,7 +23,7 @@ - + diff --git a/contributing-github-issues.html b/contributing-github-issues.html index 8012a4f87c..12b95f16c3 100644 --- a/contributing-github-issues.html +++ b/contributing-github-issues.html @@ -23,7 +23,7 @@ - + diff --git a/contributing-how-to-contribute.html b/contributing-how-to-contribute.html index 3b5664b8d3..a1d3925988 100644 --- a/contributing-how-to-contribute.html +++ b/contributing-how-to-contribute.html @@ -23,7 +23,7 @@ - + diff --git a/contributing-telemetry.html b/contributing-telemetry.html index d0e935da10..ad2ed90dd3 100644 --- a/contributing-telemetry.html +++ b/contributing-telemetry.html @@ -23,7 +23,7 @@ - + diff --git a/contributing-templates.html b/contributing-templates.html index 99e4e22926..43679b4741 100644 --- a/contributing-templates.html +++ b/contributing-templates.html @@ -23,7 +23,7 @@ - + diff --git a/data-types.html b/data-types.html index d1c2bf7730..1e5f2d3b3a 100644 --- a/data-types.html +++ b/data-types.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-architecture.html b/deployment-architecture.html index 2be3d036b8..78ffee6db2 100644 --- a/deployment-architecture.html +++ b/deployment-architecture.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-caddyfile.html b/deployment-caddyfile.html index 73e21a7fe7..ee8963bd80 100644 --- a/deployment-caddyfile.html +++ b/deployment-caddyfile.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-docker.html b/deployment-docker.html index 152df2223f..0699e77279 100644 --- a/deployment-docker.html +++ b/deployment-docker.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-gcp.html b/deployment-gcp.html index cab5484398..088f9868b2 100644 --- a/deployment-gcp.html +++ b/deployment-gcp.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-hugging-face-spaces.html b/deployment-hugging-face-spaces.html index 4ef35ff3a8..83a272db8e 100644 --- a/deployment-hugging-face-spaces.html +++ b/deployment-hugging-face-spaces.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-kubernetes-dev.html b/deployment-kubernetes-dev.html index 7ec6113cce..a0832cf187 100644 --- a/deployment-kubernetes-dev.html +++ b/deployment-kubernetes-dev.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-kubernetes-prod.html b/deployment-kubernetes-prod.html index 3eb3b959cb..3134b3c756 100644 --- a/deployment-kubernetes-prod.html +++ b/deployment-kubernetes-prod.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-overview.html b/deployment-overview.html index fe2650fa5d..9643643c21 100644 --- a/deployment-overview.html +++ b/deployment-overview.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-prod-best-practices.html b/deployment-prod-best-practices.html index 1b218f5e95..698881315a 100644 --- a/deployment-prod-best-practices.html +++ b/deployment-prod-best-practices.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-public-server.html b/deployment-public-server.html index 6d4c36e95a..4ff39cf155 100644 --- a/deployment-public-server.html +++ b/deployment-public-server.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-railway.html b/deployment-railway.html index 0deea84d83..9ba740ebe8 100644 --- a/deployment-railway.html +++ b/deployment-railway.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-render.html b/deployment-render.html index 7d722da330..02413efc2f 100644 --- a/deployment-render.html +++ b/deployment-render.html @@ -23,7 +23,7 @@ - + diff --git a/develop-application.html b/develop-application.html index 383f8fa522..743fa74fd5 100644 --- a/develop-application.html +++ b/develop-application.html @@ -23,7 +23,7 @@ - + diff --git a/enterprise-database-guide.html b/enterprise-database-guide.html index f042ad0d45..8c1f809102 100644 --- a/enterprise-database-guide.html +++ b/enterprise-database-guide.html @@ -23,7 +23,7 @@ - + diff --git a/environment-variables.html b/environment-variables.html index 7d1160897d..f9742d4ef6 100644 --- a/environment-variables.html +++ b/environment-variables.html @@ -23,7 +23,7 @@ - + @@ -109,7 +109,7 @@ If it detects a supported environment variable, then it automatically adopts the

On startup, Langflow imports the environment variables from your .env file, as well as any others that you set in your terminal, and then adopts their specified values.

Supported environment variables​

The following table lists the environment variables supported by Langflow.

-
VariableFormatDefaultDescription
DO_NOT_TRACKBooleanFalseWhether to report Langflow telemetry data. If true, Langflow telemetry is disabled.
LANGFLOW_AUTO_LOGINBooleanTrueSee LANGFLOW_AUTO_LOGIN.
LANGFLOW_AUTO_SAVINGBooleanTrueEnable flow auto-saving.
LANGFLOW_AUTO_SAVING_INTERVALInteger1000Set the interval for flow auto-saving in milliseconds.
LANGFLOW_BACKEND_ONLYBooleanFalseRun only the Langflow backend service (no frontend).
LANGFLOW_BUNDLE_URLSList[String][]A list of URLs from which to load component bundles and flows. Supports GitHub URLs. If LANGFLOW_AUTO_LOGIN is enabled, flows from these bundles are loaded into the database.
LANGFLOW_CACHE_TYPEStringasyncSet the cache type for Langflow. Possible values: async, redis, memory, disk. If you set the type to redis, then you must also set the following environment variables: LANGFLOW_REDIS_HOST, LANGFLOW_REDIS_PORT, LANGFLOW_REDIS_DB, and LANGFLOW_REDIS_CACHE_EXPIRE. See also langflow run.
LANGFLOW_COMPONENTS_PATHStringNot setPath to the directory containing custom components.
LANGFLOW_CONFIG_DIRStringVariesSet the Langflow configuration directory where files, logs, and the Langflow database are stored. Default path depends on your installation. See Flow storage and logs.
LANGFLOW_DATABASE_URLStringNot setSet the database URL for Langflow. If not provided, Langflow uses a SQLite database.
LANGFLOW_DATABASE_CONNECTION_RETRYBooleanFalseWhether to retry lost connections to the Langflow database. If true, Langflow tries to connect to the database again if the connection fails.
LANGFLOW_DB_POOL_SIZEInteger20DEPRECATED: Use LANGFLOW_DB_CONNECTION_SETTINGS instead. The number of connections to keep open in the connection pool.
LANGFLOW_DB_MAX_OVERFLOWInteger30DEPRECATED: Use LANGFLOW_DB_CONNECTION_SETTINGS instead. The number of connections to allow that can be opened beyond the pool size.
LANGFLOW_DB_CONNECT_TIMEOUTInteger30The number of seconds to wait before giving up on a lock to be released or establishing a connection to the database.
LANGFLOW_DB_CONNECTION_SETTINGSJSONNot setA JSON dictionary to centralize database connection parameters. Example: {"pool_size": 20, "max_overflow": 30}
LANGFLOW_DISABLE_TRACK_APIKEY_USAGEBooleanFalseWhether to track API key usage. If true, disables tracking of API key usage (total_uses and last_used_at) to avoid database contention under high concurrency.
LANGFLOW_ENABLE_SUPERUSER_CLIBooleanTrueAllow creation of superusers with the Langflow CLI command langflow superuser. Recommended to be disabled (false) in production for security reasons.
LANGFLOW_FALLBACK_TO_ENV_VARBooleanTrueIf enabled, global variables set in your Langflow Settings can use an environment variable with the same name if Langflow can't retrieve the variable value from the global variables.
LANGFLOW_FRONTEND_PATHString./frontendPath to the frontend directory containing build files. This is for development purposes only. See langflow run.
LANGFLOW_HEALTH_CHECK_MAX_RETRIESInteger5Set the maximum number of retries for the health check. See langflow run.
LANGFLOW_HOSTStringlocalhostThe host on which the Langflow server will run. See langflow run.
LANGFLOW_LANGCHAIN_CACHEStringInMemoryCacheType of cache storage to use, separate from LANGFLOW_CACHE_TYPE. Possible values: InMemoryCache, SQLiteCache.
LANGFLOW_LOG_LEVELStringINFOSet the logging level for Langflow. Possible values: DEBUG, INFO, WARNING, ERROR, CRITICAL.
LANGFLOW_LOG_FILEStringNot setPath to the log file. If this option isn't set, logs are written to stdout.
LANGFLOW_LOG_RETRIEVER_BUFFER_SIZEInteger10000Set the buffer size for log retrieval. Only used if LANGFLOW_ENABLE_LOG_RETRIEVAL is enabled.
LANGFLOW_MAX_FILE_SIZE_UPLOADInteger100Set the maximum file size for the upload in megabytes. See langflow run.
LANGFLOW_MAX_ITEMS_LENGTHInteger100Maximum number of items to store and display in the visual editor. Lists longer than this will be truncated when displayed in the visual editor. Doesn't affect data passed between components nor outputs.
LANGFLOW_MAX_TEXT_LENGTHInteger1000Maximum number of characters to store and display in the visual editor. Responses longer than this will be truncated when displayed in the visual editor. Doesn't truncate responses between components nor outputs.
LANGFLOW_MCP_SERVER_ENABLEDBooleanTrueIf this option is set to False, Langflow doesn't enable the MCP server.
LANGFLOW_MCP_SERVER_ENABLE_PROGRESS_NOTIFICATIONSBooleanFalseIf this option is set to True, Langflow sends progress notifications in the MCP server.
LANGFLOW_NEW_USER_IS_ACTIVEBooleanFalseSee LANGFLOW_NEW_USER_IS_ACTIVE.
LANGFLOW_OPEN_BROWSERBooleanFalseOpen the system web browser on startup.
LANGFLOW_PORTInteger7860The port on which the Langflow server runs. The server automatically selects a free port if the specified port is in use.
LANGFLOW_PROMETHEUS_ENABLEDBooleanFalseExpose Prometheus metrics.
LANGFLOW_PROMETHEUS_PORTInteger9090Set the port on which Langflow exposes Prometheus metrics.
LANGFLOW_REDIS_CACHE_EXPIREInteger3600See LANGFLOW_CACHE_TYPE.
LANGFLOW_REDIS_DBInteger0See LANGFLOW_CACHE_TYPE.
LANGFLOW_REDIS_HOSTStringlocalhostSee LANGFLOW_CACHE_TYPE.
LANGFLOW_REDIS_PORTString6379See LANGFLOW_CACHE_TYPE.
LANGFLOW_REDIS_PASSWORDStringNot setPassword for Redis authentication when using Redis cache type.
LANGFLOW_REMOVE_API_KEYSBooleanFalseRemove API keys from the projects saved in the database.
LANGFLOW_SAVE_DB_IN_CONFIG_DIRBooleanFalseIf false (default), the Langflow database is saved in the langflow root directory. This means the database isn't shared between different virtual environments, and the database is deleted when you uninstall Langflow. If true, the database is saved in the LANGFLOW_CONFIG_DIR.
LANGFLOW_SECRET_KEYStringAutomatedSee LANGFLOW_SECRET_KEY.
LANGFLOW_STOREBooleanTrueWhether to enable the Langflow Store features.
LANGFLOW_STORE_ENVIRONMENT_VARIABLESBooleanTrueWhether to store environment variables as global variables in the database.
LANGFLOW_CREATE_STARTER_PROJECTSBooleanTrueWhether to create templates during initialization. If false, Langflow doesn't create templates, and LANGFLOW_UPDATE_STARTER_PROJECTS is treated as false.
LANGFLOW_UPDATE_STARTER_PROJECTSBooleanTrueWhether to update templates with the latest component versions when initializing after an upgrade.
LANGFLOW_SUPERUSERStringlangflowSee LANGFLOW_SUPERUSER and LANGFLOW_SUPERUSER_PASSWORD.
LANGFLOW_SUPERUSER_PASSWORDStringlangflowSee LANGFLOW_SUPERUSER and LANGFLOW_SUPERUSER_PASSWORD.
LANGFLOW_VARIABLES_TO_GET_FROM_ENVIRONMENTStringNot setComma-separated list of environment variables to get from the environment and store as global variables.
LANGFLOW_LOAD_FLOWS_PATHStringNot setPath to a directory containing flow JSON files to be loaded on startup. Note that this feature only works if LANGFLOW_AUTO_LOGIN is enabled.
LANGFLOW_WORKER_TIMEOUTInteger300Worker timeout in seconds.
LANGFLOW_WORKERSInteger1Number of worker processes.
LANGFLOW_SSL_CERT_FILEStringNot setPath to the SSL certificate file on the local system.
LANGFLOW_SSL_KEY_FILEStringNot setPath to the SSL key file on the local system.
LANGFLOW_SKIP_AUTH_AUTO_LOGINBooleanTrueSee LANGFLOW_AUTO_LOGIN.
+
VariableFormatDefaultDescription
DO_NOT_TRACKBooleanFalseWhether to report Langflow telemetry data. If true, Langflow telemetry is disabled.
LANGFLOW_AUTO_LOGINBooleanTrueSee LANGFLOW_AUTO_LOGIN.
LANGFLOW_AUTO_SAVINGBooleanTrueEnable flow auto-saving.
LANGFLOW_AUTO_SAVING_INTERVALInteger1000Set the interval for flow auto-saving in milliseconds.
LANGFLOW_BACKEND_ONLYBooleanFalseRun only the Langflow backend service (no frontend).
LANGFLOW_BUNDLE_URLSList[String][]A list of URLs from which to load component bundles and flows. Supports GitHub URLs. If LANGFLOW_AUTO_LOGIN is enabled, flows from these bundles are loaded into the database.
LANGFLOW_CACHE_TYPEStringasyncSet the cache type for Langflow's internal caching system. For detailed cache configuration options, see Configure cache memory.
LANGFLOW_COMPONENTS_PATHStringNot setPath to the directory containing custom components.
LANGFLOW_CONFIG_DIRStringVariesSet the Langflow configuration directory where files, logs, and the Langflow database are stored. Default path depends on your installation. See Flow storage and logs.
LANGFLOW_DATABASE_URLStringNot setSet the database URL for Langflow. If not provided, Langflow uses a SQLite database.
LANGFLOW_DATABASE_CONNECTION_RETRYBooleanFalseWhether to retry lost connections to the Langflow database. If true, Langflow tries to connect to the database again if the connection fails.
LANGFLOW_DB_POOL_SIZEInteger20DEPRECATED: Use LANGFLOW_DB_CONNECTION_SETTINGS instead. The number of connections to keep open in the connection pool.
LANGFLOW_DB_MAX_OVERFLOWInteger30DEPRECATED: Use LANGFLOW_DB_CONNECTION_SETTINGS instead. The number of connections to allow that can be opened beyond the pool size.
LANGFLOW_DB_CONNECT_TIMEOUTInteger30The number of seconds to wait before giving up on a lock to be released or establishing a connection to the database.
LANGFLOW_DB_CONNECTION_SETTINGSJSONNot setA JSON dictionary to centralize database connection parameters. Example: {"pool_size": 20, "max_overflow": 30}
LANGFLOW_DISABLE_TRACK_APIKEY_USAGEBooleanFalseWhether to track API key usage. If true, disables tracking of API key usage (total_uses and last_used_at) to avoid database contention under high concurrency.
LANGFLOW_ENABLE_SUPERUSER_CLIBooleanTrueAllow creation of superusers with the Langflow CLI command langflow superuser. Recommended to be disabled (false) in production for security reasons.
LANGFLOW_FALLBACK_TO_ENV_VARBooleanTrueIf enabled, global variables set in your Langflow Settings can use an environment variable with the same name if Langflow can't retrieve the variable value from the global variables.
LANGFLOW_FRONTEND_PATHString./frontendPath to the frontend directory containing build files. This is for development purposes only. See langflow run.
LANGFLOW_HEALTH_CHECK_MAX_RETRIESInteger5Set the maximum number of retries for the health check. See langflow run.
LANGFLOW_HOSTStringlocalhostThe host on which the Langflow server will run. See langflow run.
LANGFLOW_LANGCHAIN_CACHEStringInMemoryCacheSet the cache type for Langchain's caching system. For detailed cache configuration options, see Configure cache memory.
LANGFLOW_LOG_LEVELStringINFOSet the logging level for Langflow. Possible values: DEBUG, INFO, WARNING, ERROR, CRITICAL.
LANGFLOW_LOG_FILEStringNot setPath to the log file. If this option isn't set, logs are written to stdout.
LANGFLOW_LOG_RETRIEVER_BUFFER_SIZEInteger10000Set the buffer size for log retrieval. Only used if LANGFLOW_ENABLE_LOG_RETRIEVAL is enabled.
LANGFLOW_MAX_FILE_SIZE_UPLOADInteger100Set the maximum file size for the upload in megabytes. See langflow run.
LANGFLOW_MAX_ITEMS_LENGTHInteger100Maximum number of items to store and display in the visual editor. Lists longer than this will be truncated when displayed in the visual editor. Doesn't affect data passed between components nor outputs.
LANGFLOW_MAX_TEXT_LENGTHInteger1000Maximum number of characters to store and display in the visual editor. Responses longer than this will be truncated when displayed in the visual editor. Doesn't truncate responses between components nor outputs.
LANGFLOW_MCP_SERVER_ENABLEDBooleanTrueIf this option is set to False, Langflow doesn't enable the MCP server.
LANGFLOW_MCP_SERVER_ENABLE_PROGRESS_NOTIFICATIONSBooleanFalseIf this option is set to True, Langflow sends progress notifications in the MCP server.
LANGFLOW_NEW_USER_IS_ACTIVEBooleanFalseSee LANGFLOW_NEW_USER_IS_ACTIVE.
LANGFLOW_OPEN_BROWSERBooleanFalseOpen the system web browser on startup.
LANGFLOW_PORTInteger7860The port on which the Langflow server runs. The server automatically selects a free port if the specified port is in use.
LANGFLOW_PROMETHEUS_ENABLEDBooleanFalseExpose Prometheus metrics.
LANGFLOW_PROMETHEUS_PORTInteger9090Set the port on which Langflow exposes Prometheus metrics.
LANGFLOW_REMOVE_API_KEYSBooleanFalseRemove API keys from the projects saved in the database.
LANGFLOW_SAVE_DB_IN_CONFIG_DIRBooleanFalseIf false (default), the Langflow database is saved in the langflow root directory. This means the database isn't shared between different virtual environments, and the database is deleted when you uninstall Langflow. If true, the database is saved in the LANGFLOW_CONFIG_DIR.
LANGFLOW_SECRET_KEYStringAutomatedSee LANGFLOW_SECRET_KEY.
LANGFLOW_STOREBooleanTrueWhether to enable the Langflow Store features.
LANGFLOW_STORE_ENVIRONMENT_VARIABLESBooleanTrueWhether to store environment variables as global variables in the database.
LANGFLOW_CREATE_STARTER_PROJECTSBooleanTrueWhether to create templates during initialization. If false, Langflow doesn't create templates, and LANGFLOW_UPDATE_STARTER_PROJECTS is treated as false.
LANGFLOW_UPDATE_STARTER_PROJECTSBooleanTrueWhether to update templates with the latest component versions when initializing after an upgrade.
LANGFLOW_SUPERUSERStringlangflowSee LANGFLOW_SUPERUSER and LANGFLOW_SUPERUSER_PASSWORD.
LANGFLOW_SUPERUSER_PASSWORDStringlangflowSee LANGFLOW_SUPERUSER and LANGFLOW_SUPERUSER_PASSWORD.
LANGFLOW_VARIABLES_TO_GET_FROM_ENVIRONMENTStringNot setComma-separated list of environment variables to get from the environment and store as global variables.
LANGFLOW_LOAD_FLOWS_PATHStringNot setPath to a directory containing flow JSON files to be loaded on startup. Note that this feature only works if LANGFLOW_AUTO_LOGIN is enabled.
LANGFLOW_WORKER_TIMEOUTInteger300Worker timeout in seconds.
LANGFLOW_WORKERSInteger1Number of worker processes.
LANGFLOW_SSL_CERT_FILEStringNot setPath to the SSL certificate file on the local system.
LANGFLOW_SSL_KEY_FILEStringNot setPath to the SSL key file on the local system.
LANGFLOW_SKIP_AUTH_AUTO_LOGINBooleanTrueSee LANGFLOW_AUTO_LOGIN.

Configure .env, override.conf, and tasks.json files​

The following examples show how to configure Langflow using environment variables in different scenarios.

The .env file is a text file that contains key-value pairs of environment variables.

Create or edit a .env file in the root directory of your application or Langflow environment, and then add your configuration variables to the file:


_30
DO_NOT_TRACK=True
_30
LANGFLOW_AUTO_LOGIN=False
_30
LANGFLOW_AUTO_SAVING=True
_30
LANGFLOW_AUTO_SAVING_INTERVAL=1000
_30
LANGFLOW_BACKEND_ONLY=False
_30
LANGFLOW_BUNDLE_URLS=["https://github.com/user/repo/commit/hash"]
_30
LANGFLOW_CACHE_TYPE=async
_30
LANGFLOW_COMPONENTS_PATH=/path/to/components/
_30
LANGFLOW_CONFIG_DIR=/path/to/config/
_30
LANGFLOW_DATABASE_URL=postgresql://user:password@localhost:5432/langflow
_30
LANGFLOW_DEV=False
_30
LANGFLOW_FALLBACK_TO_ENV_VAR=False
_30
LANGFLOW_HEALTH_CHECK_MAX_RETRIES=5
_30
LANGFLOW_HOST=localhost
_30
LANGFLOW_LANGCHAIN_CACHE=InMemoryCache
_30
LANGFLOW_MAX_FILE_SIZE_UPLOAD=10000
_30
LANGFLOW_MAX_ITEMS_LENGTH=100
_30
LANGFLOW_MAX_TEXT_LENGTH=1000
_30
LANGFLOW_LOG_LEVEL=error
_30
LANGFLOW_OPEN_BROWSER=False
_30
LANGFLOW_PORT=7860
_30
LANGFLOW_REMOVE_API_KEYS=False
_30
LANGFLOW_SAVE_DB_IN_CONFIG_DIR=True
_30
LANGFLOW_SECRET_KEY=somesecretkey
_30
LANGFLOW_STORE=True
_30
LANGFLOW_STORE_ENVIRONMENT_VARIABLES=True
_30
LANGFLOW_SUPERUSER=adminuser
_30
LANGFLOW_SUPERUSER_PASSWORD=adminpass
_30
LANGFLOW_WORKER_TIMEOUT=60000
_30
LANGFLOW_WORKERS=3

diff --git a/get-started-installation.html b/get-started-installation.html index aa97207adc..748376bb0f 100644 --- a/get-started-installation.html +++ b/get-started-installation.html @@ -23,7 +23,7 @@ - + diff --git a/get-started-quickstart.html b/get-started-quickstart.html index d13c18626f..d7bd003010 100644 --- a/get-started-quickstart.html +++ b/get-started-quickstart.html @@ -23,7 +23,7 @@ - + diff --git a/index.html b/index.html index e79cb49874..ca23efdbf5 100644 --- a/index.html +++ b/index.html @@ -23,7 +23,7 @@ - + diff --git a/install-custom-dependencies.html b/install-custom-dependencies.html index b013f2066d..5211ab5cdc 100644 --- a/install-custom-dependencies.html +++ b/install-custom-dependencies.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-apify.html b/integrations-apify.html index 31b9c3486d..899146198b 100644 --- a/integrations-apify.html +++ b/integrations-apify.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-arize.html b/integrations-arize.html index 781183daa4..e7d28a554e 100644 --- a/integrations-arize.html +++ b/integrations-arize.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-assemblyai.html b/integrations-assemblyai.html index 0e64b1f5e2..35b9471927 100644 --- a/integrations-assemblyai.html +++ b/integrations-assemblyai.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-cleanlab.html b/integrations-cleanlab.html index 91d5164bb6..c0b9213456 100644 --- a/integrations-cleanlab.html +++ b/integrations-cleanlab.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-composio.html b/integrations-composio.html index 7cf002a523..5d999f0a5d 100644 --- a/integrations-composio.html +++ b/integrations-composio.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-docling.html b/integrations-docling.html index e23ff942b0..a117604010 100644 --- a/integrations-docling.html +++ b/integrations-docling.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-google-big-query.html b/integrations-google-big-query.html index e4b681f9d5..a1b5f61a5b 100644 --- a/integrations-google-big-query.html +++ b/integrations-google-big-query.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-langfuse.html b/integrations-langfuse.html index ed86484a58..1f0ea1129c 100644 --- a/integrations-langfuse.html +++ b/integrations-langfuse.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-langsmith.html b/integrations-langsmith.html index 255ba04982..d79710f9c5 100644 --- a/integrations-langsmith.html +++ b/integrations-langsmith.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-langwatch.html b/integrations-langwatch.html index c5c2246586..ebc5858cd2 100644 --- a/integrations-langwatch.html +++ b/integrations-langwatch.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-nvidia-g-assist.html b/integrations-nvidia-g-assist.html index fa76839160..b13491d955 100644 --- a/integrations-nvidia-g-assist.html +++ b/integrations-nvidia-g-assist.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-nvidia-ingest-wsl2.html b/integrations-nvidia-ingest-wsl2.html index ab1be99ccc..f1de1e8dc2 100644 --- a/integrations-nvidia-ingest-wsl2.html +++ b/integrations-nvidia-ingest-wsl2.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-nvidia-ingest.html b/integrations-nvidia-ingest.html index 5927e971a1..949daff53e 100644 --- a/integrations-nvidia-ingest.html +++ b/integrations-nvidia-ingest.html @@ -23,7 +23,7 @@ - + diff --git a/integrations-opik.html b/integrations-opik.html index 30312d5a7b..287cb45ecf 100644 --- a/integrations-opik.html +++ b/integrations-opik.html @@ -23,7 +23,7 @@ - + diff --git a/integrations/notion/notion-agent-conversational.html b/integrations/notion/notion-agent-conversational.html index e601945a06..25b079a884 100644 --- a/integrations/notion/notion-agent-conversational.html +++ b/integrations/notion/notion-agent-conversational.html @@ -23,7 +23,7 @@ - + diff --git a/integrations/notion/notion-agent-meeting-notes.html b/integrations/notion/notion-agent-meeting-notes.html index a59d911ce0..2495cc18e8 100644 --- a/integrations/notion/notion-agent-meeting-notes.html +++ b/integrations/notion/notion-agent-meeting-notes.html @@ -23,7 +23,7 @@ - + diff --git a/integrations/notion/setup.html b/integrations/notion/setup.html index 8808f7d63e..80c452e00d 100644 --- a/integrations/notion/setup.html +++ b/integrations/notion/setup.html @@ -23,7 +23,7 @@ - + diff --git a/logging.html b/logging.html index b40736e5b5..8b42b57cb2 100644 --- a/logging.html +++ b/logging.html @@ -23,7 +23,7 @@ - + diff --git a/luna-for-langflow.html b/luna-for-langflow.html index 5ce871bcf4..35e1b629c9 100644 --- a/luna-for-langflow.html +++ b/luna-for-langflow.html @@ -23,7 +23,7 @@ - + diff --git a/mcp-client.html b/mcp-client.html index 35771fc56c..253c1e8475 100644 --- a/mcp-client.html +++ b/mcp-client.html @@ -23,7 +23,7 @@ - + diff --git a/mcp-component-astra.html b/mcp-component-astra.html index 894ac8755d..ca846bdd7d 100644 --- a/mcp-component-astra.html +++ b/mcp-component-astra.html @@ -23,7 +23,7 @@ - + diff --git a/mcp-server.html b/mcp-server.html index 967c65acb0..1708428433 100644 --- a/mcp-server.html +++ b/mcp-server.html @@ -23,7 +23,7 @@ - + diff --git a/mcp-tutorial.html b/mcp-tutorial.html index da85ba6949..126b232d48 100644 --- a/mcp-tutorial.html +++ b/mcp-tutorial.html @@ -23,7 +23,7 @@ - + diff --git a/memory.html b/memory.html index 110527d47b..40c76ae200 100644 --- a/memory.html +++ b/memory.html @@ -23,7 +23,7 @@ - + @@ -65,12 +65,13 @@ You can also selectively use external storage for chat memory, separate from oth For more information, see Configure external memory and Store chat memory.

Local Langflow database tables​

The following tables are stored in langflow.db:

-

• User: Stores user account information including credentials, permissions, profiles, and user management settings. For more information, see API keys and authentication.

-

• Flow: Contains flow definitions, including nodes, edges, and components, stored as JSON or database records. For more information, see Build flows.

-

• Message: Stores chat messages and interactions that occur between components. For more information, see Message objects and Store chat memory.

-

• Transaction: Records execution history and results of flow runs. This information is used for logging.

• ApiKey: Manages Langflow API authentication keys. Component API keys are stored in the Variables table. For more information, see API keys and authentication.

-

• Project: Provides a structure for flow storage, including single-user projects and shared projects accessed by multiple users. For more information, see Manage flows in projects.

+

• File: Stores metadata for files uploaded to Langflow's file management system, including file names, paths, sizes, and storage providers. For more information, see Manage files.

+

• Flow: Contains flow definitions, including nodes, edges, and components, stored as JSON or database records. For more information, see Build flows.

+

• Folder: Provides a structure for flow storage, including single-user folders and shared folders accessed by multiple users. For more information, see Manage flows in projects.

+

• Message: Stores chat messages and interactions that occur between components. For more information, see Message objects and Store chat memory.

+

• Transactions: Records execution history and results of flow runs. This information is used for logging.

+

• User: Stores user account information including credentials, permissions, profiles, and user management settings. For more information, see API keys and authentication.

• Variables: Stores global encrypted values and credentials. For more information, see Global variables.

• VertexBuild: Tracks the build status of individual nodes within flows. For more information, see Test flows in the Playground.

For more information, see the database models in the source code.

@@ -78,24 +79,25 @@ For more information, see Configure externa

To replace the default Langflow SQLite database with another database, modify the LANGFLOW_DATABASE_URL environment variable, and then start Langflow with your .env file:


_10
LANGFLOW_DATABASE_URL=postgresql://user:password@localhost:5432/langflow

For an example, see Configure an external PostgreSQL database.

-

Configure the external database connection​

-

The following settings allow you to fine-tune your database connection pool and timeout settings:

-

_10
LANGFLOW_DB_CONNECTION_SETTINGS='{"pool_size": 20, "max_overflow": 30, "pool_timeout": 30, "pool_pre_ping": true, "pool_recycle": 1800, "echo": false}'
_10
LANGFLOW_DB_CONNECT_TIMEOUT=20

+

The LANGFLOW_DB_CONNECTION_SETTINGS is a JSON configuration for database connection pool settings that allows you to fine-tune your database connection pool and timeout settings.

+

_10
LANGFLOW_DB_CONNECTION_SETTINGS='{"pool_size": 20, "max_overflow": 30, "pool_timeout": 30, "pool_pre_ping": true, "pool_recycle": 1800, "echo": false}'

+

Connection pool parameters​

    -
  • pool_size: Maximum number of database connections to keep in the pool (default: 20)
    • -
  • max_overflow: Maximum number of connections that can be created beyond the pool_size (default: 30)
    • -
  • pool_timeout: Number of seconds to wait before timing out on getting a connection from the pool (default: 30)
    • -
  • pool_pre_ping: If true, the pool tests connections for liveness upon each checkout (default: true)
    • -
  • pool_recycle: Number of seconds after which a connection is automatically recycled (default: 1800, or 30 minutes)
    • -
  • echo: If true, SQL queries are logged for debugging purposes (default: false)
    • -
  • LANGFLOW_DB_CONNECT_TIMEOUT: Maximum number of seconds to wait when establishing a new database connection (default: 20)
    • +
  • pool_size: Maximum number of database connections to keep in the pool. Default: 20 connections.
    • +
  • max_overflow: Maximum number of connections that can be created beyond the pool_size. Default: 30 connections.
    • +
  • pool_timeout: Number of seconds to wait before timing out on getting a connection from the pool. Default: 30 seconds.
    • +
  • pool_pre_ping: If true, the pool tests connections for liveness upon each checkout. Default: true.
    • +
  • pool_recycle: Number of seconds after which a connection is automatically recycled. Default: 1800 seconds (30 minutes).
    • +
  • echo: If true, SQL queries are logged for debugging purposes. Default: false.

Configure cache memory​

The default Langflow caching behavior is an asynchronous, in-memory cache.

-

_10
LANGFLOW_LANGCHAIN_CACHE=InMemoryCache
_10
LANGFLOW_CACHE_TYPE=Async

-

Alternative caching options can be configured, but options other than the default asynchronous, in-memory cache aren't supported. +


_10
LANGFLOW_LANGCHAIN_CACHE=InMemoryCache
_10
LANGFLOW_CACHE_TYPE=async

+

Langflow officially supports only the default asynchronous, in-memory cache. Other backends are experimental and may change without notice. The default behavior is suitable for most use cases.

-

For other options, see the LANGFLOW_CACHE_TYPE environment variable.

+
warning

Redis and other external cache settings are experimental and not officially supported.

+

Cache environment variables​

+
VariableTypeDefaultDescription
LANGFLOW_CACHE_TYPEStringasyncSet the cache type for Langflow's internal caching system.
LANGFLOW_LANGCHAIN_CACHEStringInMemoryCacheSet the cache type for Langchain's caching system.
LANGFLOW_REDIS_HOSTStringlocalhostRedis server hostname.
LANGFLOW_REDIS_PORTInteger6379Redis server port.
LANGFLOW_REDIS_DBInteger0Redis database number.
LANGFLOW_REDIS_CACHE_EXPIREInteger3600Cache expiration time in seconds.
LANGFLOW_REDIS_PASSWORDStringNot setRedis authentication password (optional).

Store chat memory​

Chat-based flows with a Chat Input or Chat Output component produce chat history that is stored in the Langflow messages table. At minimum, this serves as a chat log, but it isn't functionally the same as chat memory that provides historical context to an LLM.

@@ -135,7 +137,7 @@ For example, if you want to manage chat memory data by directly working with the