apps/gateway/src/routes/openapi.ts

Metadata

• Purpose: Gateway HTTP route handlers and request/response behavior.
• Domain: applications
• Language: ts
• Bytes: 1019
• Lines: 25
• Content hash (short): fe5aeb54
• Source (start): apps/gateway/src/routes/openapi.ts:1
• Source (end): apps/gateway/src/routes/openapi.ts:25

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import { readFile } from "node:fs/promises";
import { existsSync } from "node:fs";
import { dirname, resolve } from "node:path";
import { fileURLToPath } from "node:url";
import type { FastifyPluginAsync } from "fastify";

export const openApiRoutes: FastifyPluginAsync = async (app) => {
  app.get("/api/v1/openapi", async (_request, reply) => {
    const currentDir = dirname(fileURLToPath(import.meta.url));
    const filePathCandidates = [
      resolve(process.cwd(), "packages/contracts/src/openapi/openapi.yaml"),
      resolve(process.cwd(), "../../packages/contracts/src/openapi/openapi.yaml"),
      resolve(currentDir, "../../../../packages/contracts/src/openapi/openapi.yaml")
    ];
    const filePath = filePathCandidates.find((path) => existsSync(path));
    if (!filePath) {
      reply.code(500);
      return { error: "OpenAPI specification file was not found" };
    }
    const yaml = await readFile(filePath, "utf8");
    reply.header("content-type", "application/yaml");
    return yaml;
  });
};