mirror of
https://github.com/wassname/Open-Assistant.git
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Andrew Maguire
62 lines
2.6 KiB
Markdown
62 lines
2.6 KiB
Markdown
# Open-Assistant REST Backend
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## Backend Development Setup
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In root directory, run
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`docker compose up backend-dev --build --attach-dependencies` to start a
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database. The default settings are already configured to connect to the database
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at `localhost:5432`.
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Python 3.10 is required. It is recommended to use `pyenv` which will recognise
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the `.python-version` in the project root directory.
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Make sure you have all requirements installed. You can do this by running
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`pip install -r requirements.txt` inside the `backend` folder and
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`pip install -e .` inside the `oasst-shared` folder. Then, run the backend using
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the `run-local.sh` script inside the `scripts` folder. This will start the
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backend server at `http://localhost:8080`.
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## REST Server Configuration
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Please either use environment variables or create a `.env` file in the backend
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root directory (in which this readme file is located) to specify the
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`DATABASE_URI`.
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Example contents of a `.env` file for the backend:
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```
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DATABASE_URI="postgresql://<username>:<password>@<host>/<database_name>"
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BACKEND_CORS_ORIGINS=["http://localhost", "http://localhost:4200", "http://localhost:3000", "http://localhost:8080", "https://localhost", "https://localhost:4200", "https://localhost:3000", "https://localhost:8080", "http://dev.oasst.laion.ai", "https://stag.oasst.laion.ai", "https://oasst.laion.ai"]
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REDIS_HOST=localhost
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REDIS_PORT=6379
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```
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## Running the REST Server locally for development
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Have a look into the main `README.md` file for more information on how to set up
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the backend for development. Use the scripts within the
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scripts/backend-development folder to run the BE API locally.
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## Alembic
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To create an Alembic database migration script after sql-models were modified
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run `alembic revision --autogenerate -m "..."` ("..." is what you did) in the
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`/backend` directory. Then edit the newly created file. See
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[here](https://alembic.sqlalchemy.org/en/latest/tutorial.html) for more
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information.
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## API Documentation
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Once you have successfully started the backend server, you can access the
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default api docs at `localhost:8080/docs`. If you need to update the exported
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openapi.json in the docs/ folder you can run below command to `wget` them from
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the relevant local fastapi endpoint. This will enable anyone to just see API
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docs via something like
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[Swagger.io](https://editor.swagger.io/?url=https://raw.githubusercontent.com/LAION-AI/Open-Assistant/main/docs/docs/api/openapi.json)
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without having to actually set up and run a development backend.
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```bash
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# save openapi.json to docs/docs/api
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wget localhost:8080/api/v1/openapi.json -O docs/docs/api/openapi.json
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```
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