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dify/web/README.md
2026-03-20 17:23:17 +08:00

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# Dify Frontend
This is a [Next.js] project, but you can dev with [vinext].
## Getting Started
### Run by source code
Before starting the web frontend service, please make sure the following environment is ready.
- [Node.js]
- [pnpm]
You can also use [Vite+] with the corresponding `vp` commands.
For example, use `vp install` instead of `pnpm install` and `vp test` instead of `pnpm run test`.
> [!TIP]
> It is recommended to install and enable Corepack to manage package manager versions automatically:
>
> ```bash
> npm install -g corepack
> corepack enable
> ```
>
> Learn more: [Corepack]
First, install the dependencies:
```bash
pnpm install
```
Then, configure the environment variables.
Create a file named `.env.local` in the current directory and copy the contents from `.env.example`.
Modify the values of these environment variables according to your requirements:
```bash
cp .env.example .env.local
```
> [!IMPORTANT]
>
> 1. When the frontend and backend run on different subdomains, set NEXT_PUBLIC_COOKIE_DOMAIN=1. The frontend and backend must be under the same top-level domain in order to share authentication cookies.
> 1. It's necessary to set NEXT_PUBLIC_API_PREFIX and NEXT_PUBLIC_PUBLIC_API_PREFIX to the correct backend API URL.
Finally, run the development server:
```bash
pnpm run dev
# or if you are using vinext which provides a better development experience
pnpm run dev:vinext
# (optional) start the dev proxy server so that you can use online API in development
pnpm run dev:proxy
```
Open <http://localhost:3000> with your browser to see the result.
You can start editing the file under folder `app`.
The page auto-updates as you edit the file.
## Deploy
### Deploy on server
First, build the app for production:
```bash
pnpm run build
```
Then, start the server:
```bash
pnpm run start
```
If you want to customize the host and port:
```bash
pnpm run start --port=3001 --host=0.0.0.0
```
## Storybook
This project uses [Storybook] for UI component development.
To start the storybook server, run:
```bash
pnpm storybook
```
Open <http://localhost:6006> with your browser to see the result.
## Lint Code
If your IDE is VSCode, rename `web/.vscode/settings.example.json` to `web/.vscode/settings.json` for lint code setting.
Then follow the [Lint Documentation] to lint the code.
## Test
We use [Vitest] and [React Testing Library] for Unit Testing.
**📖 Complete Testing Guide**: See [web/docs/test.md] for detailed testing specifications, best practices, and examples.
> [!IMPORTANT]
> As we are using Vite+, the `vitest` command is not available.
> Please make sure to run tests with `vp` commands.
> For example, use `npx vp test` instead of `npx vitest`.
Run test:
```bash
pnpm test
```
> [!NOTE]
> Our test is not fully stable yet, and we are actively working on improving it.
> If you encounter test failures only in CI but not locally, please feel free to ignore them and report the issue to us.
> You can try to re-run the test in CI, and it may pass successfully.
### Example Code
If you are not familiar with writing tests, refer to:
- [classnames.spec.ts] - Utility function test example
- [index.spec.tsx] - Component test example
### Analyze Component Complexity
Before writing tests, use the script to analyze component complexity:
```bash
pnpm analyze-component app/components/your-component/index.tsx
```
This will help you determine the testing strategy. See [web/testing/testing.md] for details.
## Documentation
Visit <https://docs.dify.ai> to view the full documentation.
## Community
The Dify community can be found on [Discord community], where you can ask questions, voice ideas, and share your projects.
[Corepack]: https://github.com/nodejs/corepack#readme
[Discord community]: https://discord.gg/5AEfbxcd9k
[Lint Documentation]: ./docs/lint.md
[Next.js]: https://nextjs.org
[Node.js]: https://nodejs.org
[React Testing Library]: https://testing-library.com/docs/react-testing-library/intro
[Storybook]: https://storybook.js.org
[Vite+]: https://viteplus.dev
[Vitest]: https://vitest.dev
[classnames.spec.ts]: ./utils/classnames.spec.ts
[index.spec.tsx]: ./app/components/base/button/index.spec.tsx
[pnpm]: https://pnpm.io
[vinext]: https://github.com/cloudflare/vinext
[web/docs/test.md]: ./docs/test.md