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twenty/packages/create-twenty-app/README.md
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Charles Bochet c0cc0689d6 Add Client Api generation (#17961)
## Add API client generation to SDK dev mode and refactor orchestrator
into step-based pipeline

### Why

The SDK dev mode lacked typed API client generation, forcing developers
to work without auto-generated GraphQL types when building applications.
Additionally, the orchestrator was a monolithic class that mixed watcher
management, token handling, and sync logic — making it difficult to
extend with new steps like client generation.

### How

- **Refactored the orchestrator** into a step-based pipeline with
dedicated classes: `CheckServer`, `EnsureValidTokens`,
`ResolveApplication`, `BuildManifest`, `UploadFiles`,
`GenerateApiClient`, `SyncApplication`, and `StartWatchers`. Each step
has typed input/output/status, managed by a new `OrchestratorState`
class.
- **Added `GenerateApiClientOrchestratorStep`** that detects
object/field schema changes and regenerates a typed GraphQL client (via
`@genql/cli`) into `node_modules/twenty-sdk/generated` for seamless
imports.
- **Replaced `checkApplicationExist`** with `findOneApplication` on both
server resolver and SDK API service, returning the entity data instead
of a boolean.
- **Added application token pair mutations**
(`generateApplicationToken`, `renewApplicationToken`) to the API
service, with the server now returning `ApplicationTokenPairDTO`
containing both access and refresh tokens.
- **Restructured the dev UI** into `dev/ui/components/` with dedicated
panel, section, and event log components.
- **Simplified `AppDevCommand`** from ~180 lines of watcher management
down to ~40 lines that delegate entirely to the orchestrator.
2026-02-17 18:45:52 +01:00

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<h1>Create Twenty App</h1>
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Create Twenty App is the official scaffolding CLI for building apps on top of [Twenty CRM](https://twenty.com). It sets up a readytorun project that works seamlessly with the [twenty-sdk](https://www.npmjs.com/package/twenty-sdk).
- Zeroconfig project bootstrap
- Preconfigured scripts for auth, dev mode (watch & sync), uninstall, and function management
- Strong TypeScript support and typed client generation
## Documentation
See Twenty application documentation https://docs.twenty.com/developers/extend/capabilities/apps
## Prerequisites
- Node.js 24+ (recommended) and Yarn 4
- A Twenty workspace and an API key (create one at https://app.twenty.com/settings/api-webhooks)
## Quick start
```bash
npx create-twenty-app@latest my-twenty-app
cd my-twenty-app
# If you don't use yarn@4
corepack enable
yarn install
# Get help and list all available commands
yarn twenty help
# Authenticate using your API key (you'll be prompted)
yarn twenty auth:login
# Add a new entity to your application (guided)
yarn twenty entity:add
# Start dev mode: watches, builds, and syncs local changes to your workspace
# (also auto-generates a typed API client in node_modules/twenty-sdk/generated)
yarn twenty app:dev
# Watch your application's function logs
yarn twenty function:logs
# Execute a function with a JSON payload
yarn twenty function:execute -n my-function -p '{"key": "value"}'
# Uninstall the application from the current workspace
yarn twenty app:uninstall
```
## What gets scaffolded
- A minimal app structure ready for Twenty with example files:
- `application-config.ts` - Application metadata configuration
- `roles/default-role.ts` - Default role for logic functions
- `logic-functions/hello-world.ts` - Example logic function with HTTP trigger
- `front-components/hello-world.tsx` - Example front component
- TypeScript configuration
- A prewired `twenty` script that delegates to the `twenty` CLI from twenty-sdk
## Next steps
- Run `yarn twenty help` to see all available commands.
- Use `yarn twenty auth:login` to authenticate with your Twenty workspace.
- Explore the generated project and add your first entity with `yarn twenty entity:add` (logic functions, front components, objects, roles).
- Use `yarn twenty app:dev` while you iterate — it watches, builds, and syncs changes to your workspace in real time.
- Types are autogenerated by `yarn twenty app:dev` and stored in `node_modules/twenty-sdk/generated`.
## Publish your application
Applications are currently stored in `twenty/packages/twenty-apps`.
You can share your application with all Twenty users:
```bash
# pull the Twenty project
git clone https://github.com/twentyhq/twenty.git
cd twenty
# create a new branch
git checkout -b feature/my-awesome-app
```
- Copy your app folder into `twenty/packages/twenty-apps`.
- Commit your changes and open a pull request on https://github.com/twentyhq/twenty
```bash
git commit -m "Add new application"
git push
```
Our team reviews contributions for quality, security, and reusability before merging.
## Troubleshooting
- Auth prompts not appearing: run `yarn twenty auth:login` again and verify the API key permissions.
- Types not generated: ensure `yarn twenty app:dev` is running — it autogenerates the typed client.
## Contributing
- See our [GitHub](https://github.com/twentyhq/twenty)
- Join our [Discord](https://discord.gg/cx5n4Jzs57)