feat(x402): add x402-protected chat endpoint at $0.01#178
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sweetmantech wants to merge 7 commits intotestfrom
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feat(x402): add x402-protected chat endpoint at $0.01#178sweetmantech wants to merge 7 commits intotestfrom
sweetmantech wants to merge 7 commits intotestfrom
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This commit adds a new x402-protected chat endpoint at /api/x402/chat with a price of $0.01 per request. All traffic to /api/chat now flows through the x402 endpoint using credit deductions and USDC payments. Changes: - Add CHAT_PRICE constant ($0.01) to lib/const.ts - Configure x402 middleware to protect POST /api/x402/chat - Create /api/x402/chat/route.ts endpoint handler - Add handleChatStreamX402 for x402-specific streaming - Add validateChatRequestX402 for x402 body validation (accountId required) - Add validateChatAuth for auth-only validation - Add fetchWithPaymentStream for POST requests with streaming - Add x402Chat wrapper function for calling x402 endpoint - Update /api/chat to route through x402 with credit deduction - Add comprehensive tests for all new functions Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Extract the shared streaming logic into streamChatResponse function that both handleChatStream and handleChatStreamX402 can use. This eliminates code duplication and follows the KISS principle. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Since /api/chat now routes through x402, handleChatStream is no longer used. Remove it and its tests to follow YAGNI principle. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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The middleware matcher was running on all /api/* routes, which caused CORS preflight (OPTIONS) requests to /api/chat to be intercepted and redirected by the x402 middleware. Now the middleware only runs on /api/x402/* routes where x402 payment protection is needed. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The x402 internal response already contains CORS headers, and we were adding our own on top, resulting in 'Access-Control-Allow-Origin: *, *'. Now we filter out any access-control-* headers from the internal response before adding our own CORS headers. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
loadAccount was hardcoded to use IMAGE_GENERATE_PRICE ($0.15) for all transfers. Now it accepts a price parameter so chat uses CHAT_PRICE ($0.01) and image generation uses IMAGE_GENERATE_PRICE ($0.15). Changes: - Update loadAccount to accept price parameter - Update fetchWithPayment to pass IMAGE_GENERATE_PRICE - Update fetchWithPaymentStream to pass the price parameter - Add tests for loadAccount - Update fetchWithPaymentStream tests Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
When streaming responses go through proxy middleware, they can be buffered/compressed causing glitchy streaming. Adding Content-Encoding: none header prevents this. See: https://ai-sdk.dev/docs/troubleshooting/streaming-not-working-when-proxied Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
/api/x402/chatwith $0.01 price/api/chattraffic through x402 endpoint with credit deductionsTest plan
/api/x402/chatendpoint works with x402 payment/api/chatproperly routes through x402 with credit deduction🤖 Generated with Claude Code