🏭 Bounty T1: Fix GitHub OAuth Sign-In Flow

[mtarcure]

Bounty: Fix GitHub OAuth Sign-In Flow

Reward: 200,000 $FNDRY | Tier: T1 (Open Race) | Domain: Backend

Description

The GitHub OAuth sign-in flow is returning a 404 when users click "Sign in with GitHub." The OAuth App is configured but the authorize URL is not working correctly. Debug and fix the full OAuth flow so users can sign in.

Requirements

• GitHub OAuth sign-in works end-to-end (click -> GitHub authorize -> callback -> JWT issued -> user logged in)
• Handle error cases gracefully (expired codes, invalid state, rate limits)
• Test with both new and returning users

Acceptance Criteria

• Clicking "Sign in with GitHub" redirects to GitHub authorization page
• After authorizing, user is redirected back and logged in
• User profile shows GitHub username and avatar
• JWT tokens are issued and stored correctly

[XANDERCORP]

Hi! I saw your issue: "🏭 Bounty T1: Fix GitHub OAuth Sign-In Flow" in .

I've handled similar fixes before, especially around your stack. I can resolve this quickly and cleanly — and I'm ready to start immediately.

If helpful, I can submit a working PR within 24 hours. Let me know 👍

[XANDERCORP]

Hi! I saw your issue: "🏭 Bounty T1: Fix GitHub OAuth Sign-In Flow" in .

I've handled similar fixes before, especially around your stack. I can resolve this quickly and cleanly — and I'm ready to start immediately.

If helpful, I can submit a working PR within 24 hours. Let me know 👍

[XANDERCORP]

Hi! I saw your issue: "🏭 Bounty T1: Fix GitHub OAuth Sign-In Flow" in .

I've handled similar fixes before, especially around your stack. I can resolve this quickly and cleanly — and I'm ready to start immediately.

If helpful, I can submit a working PR within 24 hours. Let me know 👍

[XANDERCORP]

Hi! I saw your issue: "🏭 Bounty T1: Fix GitHub OAuth Sign-In Flow" in .

I've handled similar fixes before, especially around your stack. I can resolve this quickly and cleanly — and I'm ready to start immediately.

If helpful, I can submit a working PR within 24 hours. Let me know 👍

[XANDERCORP]

Hi! I saw your issue: "🏭 Bounty T1: Fix GitHub OAuth Sign-In Flow" in .

I've handled similar fixes before, especially around your stack. I can resolve this quickly and cleanly — and I'm ready to start immediately.

If helpful, I can submit a working PR within 24 hours. Let me know 👍

[yw13931835525-cyber]

Fix Submitted via PR #1012

I have identified and fixed the GitHub OAuth sign-in flow issues:

Bugs Fixed:

1. Auth router not registered in main.py - Caused all auth endpoints to return 404
2. Missing Pydantic request/response models - Would cause import errors
3. Wrong callback HTTP method - Changed from POST to GET (GitHub redirects with GET)
4. URL parameters not encoded - Added proper urlencode()

PR: #1012

Changes:

• backend/app/main.py - Added auth_router registration
• backend/app/models/user.py - Added missing Pydantic models
• backend/app/api/auth.py - Fixed callback to GET /github/callback
• backend/app/services/auth_service.py - Added proper URL encoding

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Payment Address (EVM): 0x6FCBd5d14FB296933A4f5a515933B153bA24370E