fix: OAuth credential proxy — auto-refresh tokens + beta header#1076
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glifocat wants to merge 1 commit intoqwibitai:mainfrom
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fix: OAuth credential proxy — auto-refresh tokens + beta header#1076glifocat wants to merge 1 commit intoqwibitai:mainfrom
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OAuth users hitting 401 "OAuth authentication is currently not supported" because the proxy was missing the required `anthropic-beta: oauth-2025-04-20` header. Additionally, tokens in .env expire after ~4 hours with no refresh. Changes: - Add src/oauth-token.ts: reads ~/.claude/.credentials.json, caches tokens in memory, auto-refreshes via platform.claude.com when expired, serializes concurrent refreshes through a promise chain, writes back atomically - Rewrite credential proxy: async handler, unconditional credential injection (no exchange-based flow), beta header for OAuth, req.pipe() streaming, /health endpoint, JSON error responses, 10-min timeout - Update tests for new behavior (mock getFreshOAuthToken, process.env for upstream URL, unconditional OAuth injection assertions) Based on work by @calebfaruki (qwibitai#871) and @kianwoon (qwibitai#930/qwibitai#969). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Type of Change
.claude/skills/Description
OAuth users are hitting 401 "OAuth authentication is currently not supported" because the credential proxy doesn't send the required
anthropic-beta: oauth-2025-04-20header. Additionally, OAuth tokens stored in.envexpire after ~4 hours with no automatic refresh, causing silent auth failures.This PR fixes both issues:
1. Beta header injection (
credential-proxy.ts):anthropic-beta: oauth-2025-04-20on all OAuth-proxied requestsreq.pipe()streaming for large request bodies (base64 images)/healthendpoint, JSON error responses (502/503), 10-min timeout2. Token auto-refresh (new
oauth-token.ts):~/.claude/.credentials.json(same file theclaudeCLI maintains)platform.claude.com/v1/oauth/token.envtoken if credentials file is unavailableBased on work by @calebfaruki (#871) and @kianwoon (#930, #969). Supersedes both PRs with a combined, tested implementation.
Related issues: #730 (OAuth tokens expire)