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 In this article, we will use the Quick Start: Rainbow Cat project as an example to illustrate the structure of Endpoint within the plugin. For the complete plugin code, please refer to the GitHub repository.

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Group Definition

An Endpoint group is a collection of multiple Endpoints. When creating a new Endpoint in a Dify plugin, you may need to fill in the following configurations. Besides the Endpoint Name, you can add new form items by writing group configuration information. After saving, you’ll see multiple interfaces that will use the same configuration information.

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Structure

  • settings (map[string] ProviderConfig): Endpoint configuration definitions
  • endpoints (list[string], required): Points to specific endpoint interface definitions
settings:
  api_key:
    type: secret-input
    required: true
    label:
      en_US: API key
      zh_Hans: API key
      ja_Jp: API key
      pt_BR: API key
    placeholder:
      en_US: Please input your API key
      zh_Hans: 请输入你的 API key
      ja_Jp: あなたの API key を入れてください
      pt_BR: Por favor, insira sua chave API
endpoints:
  - endpoints/duck.yaml
  - endpoints/neko.yaml

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Interface Definition

  • path (string): Follows werkzeug interface standard
  • method (string): Interface method, only supports HEAD GET POST PUT DELETE OPTIONS
  • extra (object): Configuration information beyond basic info
    • python (object)
      • source (string): Source code implementing this interface
path: "/duck/<app_id>"
method: "GET"
extra:
  python:
    source: "endpoints/duck.py"

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Endpoint Implementation

Must implement a subclass inheriting from dify_plugin.Endpoint and implement the _invoke method.
  • Input Parameters
    • r (Request): Request object from werkzeug
    • values (Mapping): Path parameters parsed from the path
    • settings (Mapping): Configuration information for this Endpoint
  • Return
    • Response object from werkzeug, supports streaming return
    • Does not support direct string return
Example Code: 
import json
from typing import Mapping
from werkzeug import Request, Response
from dify_plugin import Endpoint

class Duck(Endpoint):
    def _invoke(self, r: Request, values: Mapping, settings: Mapping) -> Response:
        """
        Invokes the endpoint with the given request.
        """
        app_id = values["app_id"]
        def generator():
            yield f"{app_id} <br>"
        return Response(generator(), status=200, content_type="text/html")
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