Félix Malfait
9e94045fa5
## Summary
App developers can now declare third-party OAuth integrations (GitHub,
Linear, Slack, etc.) in their manifest and the platform handles the full
authorize → callback → token-exchange → refresh → injection lifecycle.
The dev writes ~10 lines of config and reads tokens via
`useOAuth('linear')` inside any logic function.
```ts
// app/src/oauth-providers/linear.ts
export default defineOAuthProvider({
universalIdentifier: '...',
name: 'linear',
displayName: 'Linear',
authorizationEndpoint: 'https://linear.app/oauth/authorize',
tokenEndpoint: 'https://api.linear.app/oauth/token',
scopes: ['read', 'write'],
connectionMode: 'per-user',
clientIdVariable: 'LINEAR_CLIENT_ID',
clientSecretVariable: 'LINEAR_CLIENT_SECRET',
tokenRequestContentType: 'form-urlencoded',
});
// app/src/logic-functions/handlers/...
const { accessToken } = useOAuth('linear'); // throws OAuthNotConnectedError if missing
```
## Architecture
- **Storage**: extends the existing `connectedAccount` table — new
nullable `applicationOAuthProviderId` FK + new `app` value on the
`ConnectedAccountProvider` enum. Existing Google/Microsoft flows are
untouched.
- **OAuth flow**: a single `/apps/oauth/authorize` +
`/apps/oauth/callback` controller pair handles every app provider. State
travels in a JWT signed via the existing `JwtWrapperService` (new
`APP_OAUTH_STATE` token type).
- **Token exchange**: goes through
`SecureHttpClientService.createSsrfSafeFetch()` (so an installed app
can't point `tokenEndpoint` at internal hosts).
- **Refresh**: piggybacks on the existing
`ConnectedAccountRefreshTokensService` dispatch — Google/Microsoft
drivers untouched, new app driver lives engine-side under
`application-oauth-provider/refresh/`.
- **Injection**: the executor injects refreshed tokens as env vars
(`OAUTH_<NAME>_ACCESS_TOKEN`, `_HANDLE`, `_SCOPES`, `_CONNECTED`); the
SDK helpers `useOAuth` / `useOptionalOAuth` read them.
- **Frontend**: auto-rendered "OAuth Connections" section under each
app's settings tab (no custom front component needed). App-managed
connections are filtered out of `/settings/accounts` so the
email/calendar page stays focused.
- **Disconnect**: best-effort revoke against the manifest's
`revokeEndpoint` before deleting the row.
## Reference app
`packages/twenty-apps/internal/twenty-linear/` exercises the full
pipeline:
- `defineOAuthProvider` for Linear
- `POST /linear/create-issue` and `GET /linear/teams` HTTP-route logic
functions
- Vitest tests for the handlers
## Tests
- 14 server-side Jest tests: token-exchange util (form-urlencoded vs
JSON, PKCE, error paths), flow service (authorize URL shape, state
binding, ConnectedAccount upsert on first/reconnect, per-workspace mode,
invalid state)
- 8 app-level Vitest tests: handler error paths, GraphQL request shape,
Linear error propagation
- All 4 packages clean: `npx nx lint:diff-with-main` and `npx tsc
--noEmit`
## Test plan
- [ ] Apply migration on a dev DB: `npx nx run
twenty-server:database:migrate:prod`
- [ ] Regenerate frontend types: `npx nx run
twenty-front:graphql:generate --configuration=metadata`
- [ ] Create a Linear OAuth app at
https://linear.app/settings/api/applications/new with redirect URI
`<SERVER_URL>/apps/oauth/callback`
- [ ] Deploy + install `twenty-linear` on a workspace, paste the Linear
client id/secret into the app's variables
- [ ] Click "Connect Linear" in the app's settings tab → complete OAuth
→ verify `connectedAccount` row created with `provider = 'app'`
- [ ] Trigger `POST /linear/create-issue` with a valid teamId → verify
issue lands in Linear
- [ ] Disconnect → verify the row is deleted and (if Linear's revoke
endpoint is configured in the manifest) the revoke call fires
- [ ] Verify `/settings/accounts` does NOT show the Linear connection —
it appears only under the Linear app's settings tab
## Out of scope (deliberately)
- **Cron + per-user providers**: a cron-triggered function with a
per-user OAuth provider currently returns `CONNECTED=false` (no user
context). The follow-up design is `useOAuthForUser(name,
userWorkspaceId)` paired with a `POST /apps/oauth/connection-token`
endpoint, deferred to keep this PR focused.
- **Token encryption at rest**: tokens stored as plain `varchar`
matching the existing Google/Microsoft pattern. Worth a separate
cross-cutting PR.
- **Manifest endpoint pinning**: a malicious app upgrade could change
`tokenEndpoint` silently. Same trust model as logic-function source code
(which already runs arbitrary server-side); worth tightening across the
whole upgrade pipeline rather than just OAuth.
- **CLI helpers** (`twenty oauth show-callback-url`, `twenty oauth
connect`): manual setup for v1.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
The #1 Open-Source CRM
Website · 
Documentation · 
Roadmap · 
Discord · 
Figma
Why Twenty
Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.
Learn more about why we built Twenty
Installation
Cloud
The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.
Build an app
Scaffold a new app with the Twenty CLI:
npx create-twenty-app my-app
Define objects, fields, and views as code:
import { defineObject, FieldType } from 'twenty-sdk/define';
export default defineObject({
nameSingular: 'deal',
namePlural: 'deals',
labelSingular: 'Deal',
labelPlural: 'Deals',
fields: [
{ name: 'name', label: 'Name', type: FieldType.TEXT },
{ name: 'amount', label: 'Amount', type: FieldType.CURRENCY },
{ name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME },
],
});
Then ship it to your workspace:
npx twenty deploy
See the app development guide for objects, views, agents, and logic functions.
Self-hosting
Run Twenty on your own infrastructure with Docker Compose, or contribute locally via the local setup guide.
Everything you need
Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.
Want to go deeper? Read the 
User Guide for product walkthroughs, or the Documentation for developer reference.
|
|
|
|
|
|
Learn more about version control in docStack
TypeScript
Nx
NestJS, with BullMQ, 
PostgreSQL, 
Redis
React, with Jotai, Linaria and Lingui
Thanks
Thanks to these amazing services that we use and recommend for UI testing (Chromatic), code review (Greptile), catching bugs (Sentry) and translating (Crowdin).
Join the Community
Star the repo · Discord · 
Feature requests · Releases · 
X · 
LinkedIn · 
Crowdin · 
Contribute