GHauth
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A Val Town service for handling GitHub OAuth authentication with redirect support for external applications.
- GitHub OAuth sign-in flow
- JWT token generation for authenticated users
- Redirect support for external applications
- Secure token validation
- User profile retrieval
-
Create a GitHub OAuth App:
- Go to GitHub Settings > Developer settings > OAuth Apps
- Create a new OAuth App
- Set Authorization callback URL to:
https://[your-val-url]/auth/callback
-
Set environment variables in Val Town:
GITHUB_CLIENT_ID: Your GitHub OAuth app client IDGITHUB_CLIENT_SECRET: Your GitHub OAuth app client secretJWT_SECRET: A secure random string for signing JWT tokens
- Redirect users to:
https://[your-val-url]/auth/signin?redirect_uri=[your-app-url] - Users will be redirected to GitHub for authentication
- After successful auth, users are redirected back to your app with a token:
[your-app-url]?token=[jwt-token]
Make a GET request to: https://[your-val-url]/auth/validate?token=[jwt-token]
Returns user profile if token is valid.
GET /auth/signin- Initiate GitHub OAuth flowGET /auth/callback- Handle GitHub OAuth callbackGET /auth/validate- Validate JWT token and return user infoGET /- Auth page UI
/backend/index.ts- Main Hono server with OAuth routes/frontend/index.html- Auth page UI/shared/types.ts- Shared TypeScript types