Files
twenty/packages/create-twenty-app/README.md
T
Paul RastoinandGitHub 75bb3a904d [SDK] Refactor clients (#18433)
# Intoduction

Closes https://github.com/twentyhq/core-team-issues/issues/2289

In this PR all the clients becomes available under `twenty-sdk/clients`,
this is a breaking change but generated was too vague and thats still
the now or never best timing to do so

## CoreClient
The core client is now shipped with a default stub empty class for both
the schema and the client
Allowing its import, will still raises typescript errors when consumed
as generated but not generated

## MetadataClient
The metadata client is workspace agnostic, it's now generated and
commited in the repo. added a ci that prevents any schema desync due to
twenty-server additions

Same behavior than for the twenty-front generated graphql schema
2026-03-09 15:32:13 +00:00

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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
# 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 typed CoreApiClient — MetadataApiClient ships pre-built with the SDK — both available via `twenty-sdk/clients`)
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"}'
# Execute the pre-install function
yarn twenty function:execute --preInstall
# Execute the post-install function
yarn twenty function:execute --postInstall
# Uninstall the application from the current workspace
yarn twenty app:uninstall
```
## Scaffolding modes
Control which example files are included when creating a new app:
| Flag | Behavior |
| ------------------ | ----------------------------------------------------------------------- |
| `-e, --exhaustive` | **(default)** Creates all example files |
| `-m, --minimal` | Creates only core files (`application-config.ts` and `default-role.ts`) |
```bash
# Default: all examples included
npx create-twenty-app@latest my-app
# Minimal: only core files
npx create-twenty-app@latest my-app -m
```
## What gets scaffolded
**Core files (always created):**
- `application-config.ts` — Application metadata configuration
- `roles/default-role.ts` — Default role for logic functions
- `logic-functions/pre-install.ts` — Pre-install logic function (runs before app installation)
- `logic-functions/post-install.ts` — Post-install logic function (runs after app installation)
- TypeScript configuration, Oxlint, package.json, .gitignore
- A prewired `twenty` script that delegates to the `twenty` CLI from twenty-sdk
**Example files (controlled by scaffolding mode):**
- `objects/example-object.ts` — Example custom object with a text field
- `fields/example-field.ts` — Example standalone field extending the example object
- `logic-functions/hello-world.ts` — Example logic function with HTTP trigger
- `front-components/hello-world.tsx` — Example front component
- `views/example-view.ts` — Example saved view for the example object
- `navigation-menu-items/example-navigation-menu-item.ts` — Example sidebar navigation link
- `skills/example-skill.ts` — Example AI agent skill definition
- `__tests__/app-install.integration-test.ts` — Integration test that builds, installs, and verifies the app (includes `vitest.config.ts`, `tsconfig.spec.json`, and a setup file)
## 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, views, navigation menu items, skills).
- Use `yarn twenty app:dev` while you iterate — it watches, builds, and syncs changes to your workspace in real time.
- `CoreApiClient` (for workspace data via `/graphql`) is auto-generated by `yarn twenty app:dev`. `MetadataApiClient` (for workspace configuration and file uploads via `/metadata`) ships pre-built with the SDK. Both are available via `import { CoreApiClient, MetadataApiClient } from 'twenty-sdk/clients'`.
## 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)