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This enables integration of new features, data manipulation, external services, and specialized tools."]}),"\n",(0,s.jsx)(e.p,{children:'In Langflow\'s node-based environment, each node is a "component" that performs discrete functions. Custom components are Python classes which define:'}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Inputs"})," \u2014 Data or parameters your component requires."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Outputs"})," \u2014 Data your component provides to downstream nodes."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Logic"})," \u2014 How you process inputs to produce outputs."]}),"\n"]}),"\n",(0,s.jsx)(e.p,{children:"The benefits of creating custom components include unlimited extensibility, reusability, automatic UI field generation based on inputs, and type-safe connections between nodes."}),"\n",(0,s.jsx)(e.p,{children:"Create custom components for performing specialized tasks, calling APIs, or adding advanced logic."}),"\n",(0,s.jsx)(e.p,{children:"Custom components in Langflow are built upon:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:["The Python class that inherits from ",(0,s.jsx)(e.code,{children:"Component"}),"."]}),"\n",(0,s.jsx)(e.li,{children:"Class-level attributes that identify and describe the component."}),"\n",(0,s.jsx)(e.li,{children:"Input and output lists that determine data flow."}),"\n",(0,s.jsx)(e.li,{children:"Internal variables for logging and advanced logic."}),"\n"]}),"\n",(0,s.jsx)(e.h2,{id:"class-level-attributes",children:"Class-level attributes"}),"\n",(0,s.jsx)(e.p,{children:"Define these attributes to control a custom component's appearance and behavior:"}),"\n",(0,s.jsx)(d.Code,{codeConfig:a,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"class ",props:{style:{color:"#FF7B72"}}},{content:"MyCsvReader",props:{style:{color:"#FFA657"}}},{content:"(",props:{style:{color:"#C9D1D9"}}},{content:"Component",props:{style:{color:"#79C0FF"}}},{content:"):",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:" display_name ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"CSV Reader" ',props:{style:{color:"#A5D6FF"}}},{content:"# Shown in node header",props:{style:{color:"#8B949E"}}}]},{tokens:[{content:" description ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"Reads CSV files" ',props:{style:{color:"#A5D6FF"}}},{content:"# Tooltip text",props:{style:{color:"#8B949E"}}}]},{tokens:[{content:" icon ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"file-text" ',props:{style:{color:"#A5D6FF"}}},{content:"# Visual identifier",props:{style:{color:"#8B949E"}}}]},{tokens:[{content:" name ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"CSVReader" ',props:{style:{color:"#A5D6FF"}}},{content:"# Unique internal ID",props:{style:{color:"#8B949E"}}}]},{tokens:[{content:" documentation ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"http://docs.example.com/csv_reader" ',props:{style:{color:"#A5D6FF"}}},{content:"# Optional",props:{style:{color:"#8B949E"}}}]}],lang:"python"},annotations:[]}]}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"display_name"}),": A user-friendly label in the node header."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"description"}),": A brief summary shown in tooltips."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"icon"}),": A visual identifier from Langflow's icon library."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"name"}),": A unique internal identifier."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"documentation"}),": An optional link to external docs."]}),"\n"]}),"\n",(0,s.jsx)(e.admonition,{title:"Icon usage",type:"tip",children:(0,s.jsxs)(e.p,{children:["Langflow uses ",(0,s.jsx)(e.a,{href:"https://lucide.dev/icons",children:"Lucide"})," for icons. 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It includes an internal structure with optional lifecycle steps, output generation, front-end interaction, and logic organization."]}),"\n",(0,s.jsx)(e.p,{children:"A basic component:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:["Inherits from ",(0,s.jsx)(e.code,{children:"langflow.custom.Component"}),"."]}),"\n",(0,s.jsxs)(e.li,{children:["Declares metadata like ",(0,s.jsx)(e.code,{children:"display_name"}),", ",(0,s.jsx)(e.code,{children:"description"}),", ",(0,s.jsx)(e.code,{children:"icon"}),", and more."]}),"\n",(0,s.jsxs)(e.li,{children:["Defines ",(0,s.jsx)(e.code,{children:"inputs"})," and ",(0,s.jsx)(e.code,{children:"outputs"})," lists."]}),"\n",(0,s.jsx)(e.li,{children:"Implements methods matching output specifications."}),"\n"]}),"\n",(0,s.jsx)(e.p,{children:"A minimal custom component skeleton contains the 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[]",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:"",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:" def ",props:{style:{color:"#FF7B72"}}},{content:"some_output_method",props:{style:{color:"#D2A8FF"}}},{content:"(self):",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:" return ",props:{style:{color:"#FF7B72"}}},{content:"...",props:{style:{color:"#79C0FF"}}}]}],lang:"python"},annotations:[]}]}),"\n",(0,s.jsx)(e.h3,{id:"internal-lifecycle-and-execution-flow",children:"Internal Lifecycle and Execution Flow"}),"\n",(0,s.jsx)(e.p,{children:"Langflow's engine manages:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Instantiation"}),": A component is created and internal structures are initialized."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Assigning Inputs"}),": Values from the UI or connections are assigned to component fields."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Validation and Setup"}),": Optional hooks like ",(0,s.jsx)(e.code,{children:"_pre_run_setup"}),"."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Outputs Generation"}),": ",(0,s.jsx)(e.code,{children:"run()"})," or ",(0,s.jsx)(e.code,{children:"build_results()"})," triggers output methods."]}),"\n"]}),"\n",(0,s.jsxs)(e.p,{children:[(0,s.jsx)(e.strong,{children:"Optional Hooks"}),":"]}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"initialize_data"})," or ",(0,s.jsx)(e.code,{children:"_pre_run_setup"})," can run setup logic before the component's main execution."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"__call__"}),", ",(0,s.jsx)(e.code,{children:"run()"}),", or ",(0,s.jsx)(e.code,{children:"_run()"})," can be overridden to customize how the component is called or to define custom execution logic."]}),"\n"]}),"\n",(0,s.jsx)(e.h3,{id:"inputs-and-outputs",children:"Inputs and outputs"}),"\n",(0,s.jsx)(e.p,{children:"Custom component inputs are defined with properties like:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"name"}),", ",(0,s.jsx)(e.code,{children:"display_name"})]}),"\n",(0,s.jsxs)(e.li,{children:["Optional: ",(0,s.jsx)(e.code,{children:"info"}),", ",(0,s.jsx)(e.code,{children:"value"}),", ",(0,s.jsx)(e.code,{children:"advanced"}),", ",(0,s.jsx)(e.code,{children:"is_list"}),", ",(0,s.jsx)(e.code,{children:"tool_mode"}),", ",(0,s.jsx)(e.code,{children:"real_time_refresh"})]}),"\n"]}),"\n",(0,s.jsx)(e.p,{children:"For example:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"StrInput"}),": simple text input."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"DropdownInput"}),": selectable options."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"HandleInput"}),": specialized connections."]}),"\n"]}),"\n",(0,s.jsxs)(e.p,{children:["Custom component ",(0,s.jsx)(e.code,{children:"Output"})," properties define:"]}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"name"}),", ",(0,s.jsx)(e.code,{children:"display_name"}),", ",(0,s.jsx)(e.code,{children:"method"})]}),"\n",(0,s.jsxs)(e.li,{children:["Optional: ",(0,s.jsx)(e.code,{children:"info"})]}),"\n"]}),"\n",(0,s.jsxs)(e.p,{children:["For more information, see ",(0,s.jsx)(e.a,{href:"/components-custom-components#custom-component-inputs-and-outputs",children:"Custom component inputs and outputs"}),"."]}),"\n",(0,s.jsx)(e.h3,{id:"associated-methods",children:"Associated Methods"}),"\n",(0,s.jsx)(e.p,{children:"Each output is linked to a method:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsx)(e.li,{children:"The output method name must match the method 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This enables integration of new features, data manipulation, external services, and specialized tools."]}),"\n",(0,s.jsx)(e.p,{children:'In Langflow\'s node-based environment, each node is a "component" that performs discrete functions. Custom components are Python classes which define:'}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Inputs"})," \u2014 Data or parameters your component requires."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Outputs"})," \u2014 Data your component provides to downstream nodes."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Logic"})," \u2014 How you process inputs to produce outputs."]}),"\n"]}),"\n",(0,s.jsx)(e.p,{children:"The benefits of creating custom components include unlimited extensibility, reusability, automatic UI field generation based on inputs, and type-safe connections between nodes."}),"\n",(0,s.jsx)(e.p,{children:"Create custom components for performing specialized tasks, calling APIs, or adding advanced logic."}),"\n",(0,s.jsx)(e.p,{children:"Custom components in Langflow are built upon:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:["The Python class that inherits from ",(0,s.jsx)(e.code,{children:"Component"}),"."]}),"\n",(0,s.jsx)(e.li,{children:"Class-level attributes that identify and describe the component."}),"\n",(0,s.jsx)(e.li,{children:"Input and output lists that determine data flow."}),"\n",(0,s.jsx)(e.li,{children:"Internal variables for logging and advanced logic."}),"\n"]}),"\n",(0,s.jsx)(e.h2,{id:"class-level-attributes",children:"Class-level attributes"}),"\n",(0,s.jsx)(e.p,{children:"Define these attributes to control a custom component's appearance and behavior:"}),"\n",(0,s.jsx)(d.Code,{codeConfig:a,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"class ",props:{style:{color:"#FF7B72"}}},{content:"MyCsvReader",props:{style:{color:"#FFA657"}}},{content:"(",props:{style:{color:"#C9D1D9"}}},{content:"Component",props:{style:{color:"#79C0FF"}}},{content:"):",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:" display_name ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"CSV Reader" ',props:{style:{color:"#A5D6FF"}}},{content:"# Shown in node header",props:{style:{color:"#8B949E"}}}]},{tokens:[{content:" description ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"Reads CSV files" ',props:{style:{color:"#A5D6FF"}}},{content:"# Tooltip text",props:{style:{color:"#8B949E"}}}]},{tokens:[{content:" icon ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"file-text" ',props:{style:{color:"#A5D6FF"}}},{content:"# Visual identifier",props:{style:{color:"#8B949E"}}}]},{tokens:[{content:" name ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"CSVReader" ',props:{style:{color:"#A5D6FF"}}},{content:"# Unique internal ID",props:{style:{color:"#8B949E"}}}]},{tokens:[{content:" documentation ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"http://docs.example.com/csv_reader" ',props:{style:{color:"#A5D6FF"}}},{content:"# Optional",props:{style:{color:"#8B949E"}}}]}],lang:"python"},annotations:[]}]}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"display_name"}),": A user-friendly label in the node header."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"description"}),": A brief summary shown in tooltips."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"icon"}),": A visual identifier from Langflow's icon library."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"name"}),": A unique internal identifier."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"documentation"}),": An optional link to external docs."]}),"\n"]}),"\n",(0,s.jsx)(e.admonition,{title:"Icon usage",type:"tip",children:(0,s.jsxs)(e.p,{children:["Langflow uses ",(0,s.jsx)(e.a,{href:"https://lucide.dev/icons",children:"Lucide"})," for icons. To assign an icon to your component, set the icon attribute to the name of a Lucide icon as a string, such as ",(0,s.jsx)(e.code,{children:'icon = "file-text"'}),". Langflow renders icons from the Lucide library automatically."]})}),"\n",(0,s.jsx)(e.h3,{id:"structure-of-a-custom-component",children:"Structure of a custom component"}),"\n",(0,s.jsxs)(e.p,{children:["A ",(0,s.jsx)(e.strong,{children:"Langflow custom component"})," goes beyond a simple class with inputs and outputs. It includes an internal structure with optional lifecycle steps, output generation, front-end interaction, and logic organization."]}),"\n",(0,s.jsx)(e.p,{children:"A basic component:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:["Inherits from ",(0,s.jsx)(e.code,{children:"langflow.custom.Component"}),"."]}),"\n",(0,s.jsxs)(e.li,{children:["Declares metadata like ",(0,s.jsx)(e.code,{children:"display_name"}),", ",(0,s.jsx)(e.code,{children:"description"}),", ",(0,s.jsx)(e.code,{children:"icon"}),", and more."]}),"\n",(0,s.jsxs)(e.li,{children:["Defines ",(0,s.jsx)(e.code,{children:"inputs"})," and ",(0,s.jsx)(e.code,{children:"outputs"})," lists."]}),"\n",(0,s.jsx)(e.li,{children:"Implements methods matching output specifications."}),"\n"]}),"\n",(0,s.jsx)(e.p,{children:"A minimal custom component skeleton contains the following:"}),"\n",(0,s.jsx)(d.Code,{codeConfig:a,northPanel:{tabs:[""],active:"",heightRatio:1},files:[{name:"",focus:"",code:{lines:[{tokens:[{content:"from",props:{style:{color:"#FF7B72"}}},{content:" langflow.custom ",props:{style:{color:"#C9D1D9"}}},{content:"import",props:{style:{color:"#FF7B72"}}},{content:" Component",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:"from",props:{style:{color:"#FF7B72"}}},{content:" langflow.template ",props:{style:{color:"#C9D1D9"}}},{content:"import",props:{style:{color:"#FF7B72"}}},{content:" Output",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:"",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:"class ",props:{style:{color:"#FF7B72"}}},{content:"MyComponent",props:{style:{color:"#FFA657"}}},{content:"(",props:{style:{color:"#C9D1D9"}}},{content:"Component",props:{style:{color:"#79C0FF"}}},{content:"):",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:" display_name ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"My Component"',props:{style:{color:"#A5D6FF"}}}]},{tokens:[{content:" description ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"A short summary."',props:{style:{color:"#A5D6FF"}}}]},{tokens:[{content:" icon ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"sparkles"',props:{style:{color:"#A5D6FF"}}}]},{tokens:[{content:" name ",props:{style:{color:"#C9D1D9"}}},{content:"= ",props:{style:{color:"#FF7B72"}}},{content:'"MyComponent"',props:{style:{color:"#A5D6FF"}}}]},{tokens:[{content:"",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:" inputs ",props:{style:{color:"#C9D1D9"}}},{content:"=",props:{style:{color:"#FF7B72"}}},{content:" []",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:" outputs ",props:{style:{color:"#C9D1D9"}}},{content:"=",props:{style:{color:"#FF7B72"}}},{content:" []",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:"",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:" def ",props:{style:{color:"#FF7B72"}}},{content:"some_output_method",props:{style:{color:"#D2A8FF"}}},{content:"(self):",props:{style:{color:"#C9D1D9"}}}]},{tokens:[{content:" return ",props:{style:{color:"#FF7B72"}}},{content:"...",props:{style:{color:"#79C0FF"}}}]}],lang:"python"},annotations:[]}]}),"\n",(0,s.jsx)(e.h3,{id:"internal-lifecycle-and-execution-flow",children:"Internal Lifecycle and Execution Flow"}),"\n",(0,s.jsx)(e.p,{children:"Langflow's engine manages:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Instantiation"}),": A component is created and internal structures are initialized."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Assigning Inputs"}),": Values from the UI or connections are assigned to component fields."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Validation and Setup"}),": Optional hooks like ",(0,s.jsx)(e.code,{children:"_pre_run_setup"}),"."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.strong,{children:"Outputs Generation"}),": ",(0,s.jsx)(e.code,{children:"run()"})," or ",(0,s.jsx)(e.code,{children:"build_results()"})," triggers output methods."]}),"\n"]}),"\n",(0,s.jsxs)(e.p,{children:[(0,s.jsx)(e.strong,{children:"Optional Hooks"}),":"]}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"initialize_data"})," or ",(0,s.jsx)(e.code,{children:"_pre_run_setup"})," can run setup logic before the component's main execution."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"__call__"}),", ",(0,s.jsx)(e.code,{children:"run()"}),", or ",(0,s.jsx)(e.code,{children:"_run()"})," can be overridden to customize how the component is called or to define custom execution logic."]}),"\n"]}),"\n",(0,s.jsx)(e.h3,{id:"inputs-and-outputs",children:"Inputs and outputs"}),"\n",(0,s.jsx)(e.p,{children:"Custom component inputs are defined with properties like:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"name"}),", ",(0,s.jsx)(e.code,{children:"display_name"})]}),"\n",(0,s.jsxs)(e.li,{children:["Optional: ",(0,s.jsx)(e.code,{children:"info"}),", ",(0,s.jsx)(e.code,{children:"value"}),", ",(0,s.jsx)(e.code,{children:"advanced"}),", ",(0,s.jsx)(e.code,{children:"is_list"}),", ",(0,s.jsx)(e.code,{children:"tool_mode"}),", ",(0,s.jsx)(e.code,{children:"real_time_refresh"})]}),"\n"]}),"\n",(0,s.jsx)(e.p,{children:"For example:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"StrInput"}),": simple text input."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"DropdownInput"}),": selectable options."]}),"\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"HandleInput"}),": specialized connections."]}),"\n"]}),"\n",(0,s.jsxs)(e.p,{children:["Custom component ",(0,s.jsx)(e.code,{children:"Output"})," properties define:"]}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsxs)(e.li,{children:[(0,s.jsx)(e.code,{children:"name"}),", ",(0,s.jsx)(e.code,{children:"display_name"}),", ",(0,s.jsx)(e.code,{children:"method"})]}),"\n",(0,s.jsxs)(e.li,{children:["Optional: ",(0,s.jsx)(e.code,{children:"info"})]}),"\n"]}),"\n",(0,s.jsxs)(e.p,{children:["For more information, see ",(0,s.jsx)(e.a,{href:"/components-custom-components#custom-component-inputs-and-outputs",children:"Custom component inputs and outputs"}),"."]}),"\n",(0,s.jsx)(e.h3,{id:"associated-methods",children:"Associated Methods"}),"\n",(0,s.jsx)(e.p,{children:"Each output is linked to a method:"}),"\n",(0,s.jsxs)(e.ul,{children:["\n",(0,s.jsx)(e.li,{children:"The output method name must match the method name."}),"\n",(0,s.jsx)(e.li,{children:"The method typically returns objects like Message, Data, or DataFrame."}),"\n",(0,s.jsxs)(e.li,{children:["The method can use inputs with ",(0,s.jsx)(e.code,{children:"self.
_10outputs = [_10 Output(display_name="Processed Data", name="processed_data", method="process_data"),_10 Output(display_name="Debug Info", name="debug_info", method="provide_debug_info"),_10]
group_outputs​By default, components in Langflow that define multiple outputs will display them as a dropdown in the UI. This behavior is controlled by the group_outputs parameter.
group_outputs=False (default):
+When a component has more than one output and group_outputs is not specified (or set to False), the outputs are grouped into a dropdown. The user can choose only one output at a time from the UI.
group_outputs=True:
+All outputs will be shown simultaneously in the UI. This is useful when the component is expected to return multiple values that should be used in parallel downstream.
group_outputs=False (default behavior)
_12outputs = [_12 Output(_12 name="structured_output",_12 display_name="Structured Output",_12 method="build_structured_output",_12 ),_12 Output(_12 name="dataframe_output",_12 display_name="DataFrame Output",_12 method="build_structured_dataframe",_12 ),_12]
In this example, both outputs will be available via a dropdown selection in the UI.
+Note: Since group_outputs=False is the default behavior, it does not need to be explicitly set in the component.
group_outputs=True
_14outputs = [_14 Output(_14 name="true_result",_14 display_name="True",_14 method="true_response",_14 group_outputs=True,_14 ),_14 Output(_14 name="false_result",_14 display_name="False",_14 method="false_response",_14 group_outputs=True,_14 ),_14]
Here, both outputs will appear independently and be selectable directly in the UI.
+Use group_outputs=False when the component is expected to return only one of the outputs depending on the flow logic.
Use group_outputs=True when the component should expose multiple outputs simultaneously, such as structured data and a table that are meant to be used in parallel.
_pre_run_setup()​To initialize a custom component with counters set:
diff --git a/components-data.html b/components-data.html index 82d89228ca..bfd5e1f832 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 b0bdbf192b..c8d53e1f91 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 012f3900a6..b6746eb7a9 100644 --- a/components-helpers.html +++ b/components-helpers.html @@ -23,7 +23,7 @@ - + diff --git a/components-io.html b/components-io.html index a878be5b51..0784dcaf47 100644 --- a/components-io.html +++ b/components-io.html @@ -23,7 +23,7 @@ - + diff --git a/components-logic.html b/components-logic.html index efdc1f08b4..69313b7ec9 100644 --- a/components-logic.html +++ b/components-logic.html @@ -23,7 +23,7 @@ - + diff --git a/components-memories.html b/components-memories.html index ad1af9c468..0e568b8cf8 100644 --- a/components-memories.html +++ b/components-memories.html @@ -23,7 +23,7 @@ - + diff --git a/components-models.html b/components-models.html index f25647c4a5..3e4933dd5c 100644 --- a/components-models.html +++ b/components-models.html @@ -23,7 +23,7 @@ - + diff --git a/components-processing.html b/components-processing.html index 99502e946e..0f7e2732c6 100644 --- a/components-processing.html +++ b/components-processing.html @@ -23,7 +23,7 @@ - + diff --git a/components-prompts.html b/components-prompts.html index 641cddc77c..6b68c98e12 100644 --- a/components-prompts.html +++ b/components-prompts.html @@ -23,7 +23,7 @@ - + diff --git a/components-tools.html b/components-tools.html index 6cb0522a16..19752d842e 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 8f5b40938d..ea2c06a0c8 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 3148aa591a..4e677e3cef 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 6309f72f1f..1a66480001 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 1dfb388010..c70577733f 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 44561eefda..6a61390228 100644 --- a/concepts-flows.html +++ b/concepts-flows.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-overview.html b/concepts-overview.html index 7112ab8336..b84401cdec 100644 --- a/concepts-overview.html +++ b/concepts-overview.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-playground.html b/concepts-playground.html index 15cd3e3d06..a06b25877d 100644 --- a/concepts-playground.html +++ b/concepts-playground.html @@ -23,7 +23,7 @@ - + diff --git a/concepts-publish.html b/concepts-publish.html index 94da24a07d..4d91f448a4 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 24716f5368..7d4555353f 100644 --- a/concepts-voice-mode.html +++ b/concepts-voice-mode.html @@ -23,7 +23,7 @@ - + diff --git a/configuration-api-keys.html b/configuration-api-keys.html index 9971b19b50..7552d01070 100644 --- a/configuration-api-keys.html +++ b/configuration-api-keys.html @@ -23,7 +23,7 @@ - + diff --git a/configuration-authentication.html b/configuration-authentication.html index 07263e608a..b9f882ab9e 100644 --- a/configuration-authentication.html +++ b/configuration-authentication.html @@ -23,7 +23,7 @@ - + diff --git a/configuration-cli.html b/configuration-cli.html index a428870a31..fdc6909d44 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 9d415f23db..c2cf92c969 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 2066e7d98e..9febeb3cc7 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 3d49b99e2b..5dfc561a2e 100644 --- a/contributing-bundles.html +++ b/contributing-bundles.html @@ -23,7 +23,7 @@ - + diff --git a/contributing-community.html b/contributing-community.html index 00a8da9818..f2a3c85679 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 4526041aad..61f559ca53 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 b326eff040..ad091be186 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 14a89a2169..d3bda9ec19 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 bd83975610..d3ea4eecad 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 a518173b14..bb8ca3c843 100644 --- a/contributing-telemetry.html +++ b/contributing-telemetry.html @@ -23,7 +23,7 @@ - + diff --git a/contributing-templates.html b/contributing-templates.html index 37de37fbd8..ffff8e416c 100644 --- a/contributing-templates.html +++ b/contributing-templates.html @@ -23,7 +23,7 @@ - + diff --git a/data-types.html b/data-types.html index 9d96528234..2a622a9bb5 100644 --- a/data-types.html +++ b/data-types.html @@ -23,7 +23,7 @@ - + diff --git a/deployment-caddyfile.html b/deployment-caddyfile.html index ed26f86df9..c5cc49ad44 100644 --- a/deployment-caddyfile.html +++ b/deployment-caddyfile.html @@ -23,7 +23,7 @@ - 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