Function fetch

src/proxy.ts:370–403

(req)

    port: 0,
    idleTimeout: 255, // max — Cursor responses can take 30s+
    async fetch(req) {
      const url = new URL(req.url);

      if (req.method === "GET" && url.pathname === "/v1/models") {
        return new Response(
          JSON.stringify({
            object: "list",
            data: buildOpenAIModelList(proxyModels),
          }),
          { headers: { "Content-Type": "application/json" } },
        );
      }

      if (req.method === "POST" && url.pathname === "/v1/chat/completions") {
        try {
          const body = (await req.json()) as ChatCompletionRequest;
          if (!proxyAccessTokenProvider) {
            throw new Error("Cursor proxy access token provider not configured");
          }
          const accessToken = await proxyAccessTokenProvider();
          return handleChatCompletion(body, accessToken);
        } catch (err) {
          const message = err instanceof Error ? err.message : String(err);
          return new Response(
            JSON.stringify({
              error: { message, type: "server_error", code: "internal_error" },
            }),
            { status: 500, headers: { "Content-Type": "application/json" } },
          );
        }
      }

      return new Response("Not Found", { status: 404 });
    },
  });

  proxyPort = proxyServer.port;