API: create dataset (#1106)

### What problem does this PR solve?

This PR have finished 'create dataset' of both HTTP API and Python SDK.
HTTP API:
```
curl --request POST --url http://<HOST_ADDRESS>/api/v1/dataset   --header 'Content-Type: application/json' --header 'Authorization: <ACCESS_KEY>' --data-binary '{
  "name": "<DATASET_NAME>"
}'
```

Python SDK:
```
from ragflow.ragflow import RAGFLow
ragflow = RAGFLow('<ACCESS_KEY>', 'http://127.0.0.1:9380')
ragflow.create_dataset("dataset1")

```

TODO: 
- ACCESS_KEY is the login_token when user login RAGFlow, currently.
RAGFlow should have the function that user can add/delete access_key.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)
- [x] Documentation Update

---------

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

sdk/python/test/common.py

@@ -0,0 +1,4 @@
+
+
+API_KEY = 'IjJiMTVkZWNhMjU3MzExZWY4YzNiNjQ0OTdkMTllYjM3Ig.ZmQZrA.x9Z7c-1ErBUSL3m8SRtBRgGq5uE'
+HOST_ADDRESS = 'http://127.0.0.1:9380'

sdk/python/test/test_basic.py

@@ -3,49 +3,46 @@ import ragflow
 from ragflow.ragflow import RAGFLow
 import pytest
 from unittest.mock import MagicMock
+from common import API_KEY, HOST_ADDRESS
 
 
-class TestCase(TestSdk):
-
-    @pytest.fixture
-    def ragflow_instance(self):
-        # Here we create a mock instance of RAGFlow for testing
-        return ragflow.ragflow.RAGFLow('123', 'url')
+class TestBasic(TestSdk):
 
     def test_version(self):
         print(ragflow.__version__)
 
-    def test_create_dataset(self):
-        assert ragflow.ragflow.RAGFLow('123', 'url').create_dataset('abc') == 'abc'
-
-    def test_delete_dataset(self):
-        assert ragflow.ragflow.RAGFLow('123', 'url').delete_dataset('abc') == 'abc'
-
-    def test_list_dataset_success(self, ragflow_instance, monkeypatch):
-        # Mocking the response of requests.get method
-        mock_response = MagicMock()
-        mock_response.status_code = 200
-        mock_response.json.return_value = {'datasets': [{'id': 1, 'name': 'dataset1'}, {'id': 2, 'name': 'dataset2'}]}
-
-        # Patching requests.get to return the mock_response
-        monkeypatch.setattr("requests.get", MagicMock(return_value=mock_response))
-
-        # Call the method under test
-        result = ragflow_instance.list_dataset()
-
-        # Assertion
-        assert result == [{'id': 1, 'name': 'dataset1'}, {'id': 2, 'name': 'dataset2'}]
-
-    def test_list_dataset_failure(self, ragflow_instance, monkeypatch):
-        # Mocking the response of requests.get method
-        mock_response = MagicMock()
-        mock_response.status_code = 404  # Simulating a failed request
-
-        # Patching requests.get to return the mock_response
-        monkeypatch.setattr("requests.get", MagicMock(return_value=mock_response))
-
-        # Call the method under test
-        result = ragflow_instance.list_dataset()
-
-        # Assertion
-        assert result is None
+    # def test_create_dataset(self):
+    #     res = RAGFLow(API_KEY, HOST_ADDRESS).create_dataset('abc')
+    #     print(res)
+    #
+    # def test_delete_dataset(self):
+    #     assert RAGFLow('123', 'url').delete_dataset('abc') == 'abc'
+    #
+    # def test_list_dataset_success(self, ragflow_instance, monkeypatch):
+    #     # Mocking the response of requests.get method
+    #     mock_response = MagicMock()
+    #     mock_response.status_code = 200
+    #     mock_response.json.return_value = {'datasets': [{'id': 1, 'name': 'dataset1'}, {'id': 2, 'name': 'dataset2'}]}
+    #
+    #     # Patching requests.get to return the mock_response
+    #     monkeypatch.setattr("requests.get", MagicMock(return_value=mock_response))
+    #
+    #     # Call the method under test
+    #     result = ragflow_instance.list_dataset()
+    #
+    #     # Assertion
+    #     assert result == [{'id': 1, 'name': 'dataset1'}, {'id': 2, 'name': 'dataset2'}]
+    #
+    # def test_list_dataset_failure(self, ragflow_instance, monkeypatch):
+    #     # Mocking the response of requests.get method
+    #     mock_response = MagicMock()
+    #     mock_response.status_code = 404  # Simulating a failed request
+    #
+    #     # Patching requests.get to return the mock_response
+    #     monkeypatch.setattr("requests.get", MagicMock(return_value=mock_response))
+    #
+    #     # Call the method under test
+    #     result = ragflow_instance.list_dataset()
+    #
+    #     # Assertion
+    #     assert result is None

sdk/python/test/test_dataset.py

@@ -0,0 +1,26 @@
+from test_sdkbase import TestSdk
+import ragflow
+from ragflow.ragflow import RAGFLow
+import pytest
+from unittest.mock import MagicMock
+from common import API_KEY, HOST_ADDRESS
+
+class TestDataset(TestSdk):
+
+    def test_create_dataset(self):
+        '''
+        1. create a kb
+        2. list the kb
+        3. get the detail info according to the kb id
+        4. update the kb
+        5. delete the kb
+        '''
+        ragflow = RAGFLow(API_KEY, HOST_ADDRESS)
+
+        # create a kb
+        res = ragflow.create_dataset("kb1")
+        assert res['code'] == 0 and res['message'] == 'success'
+        dataset_id = res['data']['dataset_id']
+        print(dataset_id)
+
+        # TODO: list the kb