Dify Backend API

Usage

1. Start the docker-compose stack

   The backend require some middleware, including PostgreSQL, Redis, and Weaviate, which can be started together using docker-compose.

   cd ../docker
   docker-compose -f docker-compose.middleware.yaml -p dify up -d
   cd ../api
   

2. Copy .env.example to .env

3. Generate a SECRET_KEY in the .env file.

   openssl rand -base64 42
   

3.5 If you use annaconda, create a new environment and activate it

conda create --name dify python=3.10
conda activate dify

4. Install dependencies

   pip install -r requirements.txt
   

5. Run migrate

   Before the first launch, migrate the database to the latest version.

   flask db upgrade
   

   ⚠️ If you encounter problems with jieba, for example

   > flask db upgrade
   Error: While importing 'app', an ImportError was raised:
   

   Please run the following command instead.

   pip install -r requirements.txt --upgrade --force-reinstall
   

6. Start backend:

   flask run --host 0.0.0.0 --port=5001 --debug
   

7. Setup your application by visiting http://localhost:5001/console/api/setup or other apis...

8. If you need to debug local async processing, you can run celery -A app.celery worker -P gevent -c 1 --loglevel INFO -Q dataset,generation,mail, celery can do dataset importing and other async tasks.

9. Start frontend

   You can start the frontend by running npm install && npm run dev in web/ folder, or you can use docker to start the frontend, for example:

   docker run -it -d --platform linux/amd64 -p 3000:3000 -e EDITION=SELF_HOSTED -e CONSOLE_URL=http://127.0.0.1:5001 --name web-self-hosted langgenius/dify-web:latest
   

   This will start a dify frontend, now you are all set, happy coding!