Add config for vercel

Author: addisonschultz

src/index.js

@@ -6,7 +6,6 @@ const path = require("path");
 const openApiSpec = require("../swagger/openapi.json");
 
 const app = express();
-const PORT = process.env.PORT || 3000;
 
 app.use(cors());
 app.use(bodyParser.json());
@@ -28,12 +27,12 @@ app.get("/openapi.json", (req, res) => {
   res.sendFile(path.join(__dirname, "../swagger/openapi.json"));
 });
 
-app.listen(PORT, () => {
-  console.log(`Server is running on http://localhost:${PORT}`);
-  console.log(
-    `API documentation available at http://localhost:${PORT}/api-docs`
-  );
-  console.log(
-    `OpenAPI JSON available at http://localhost:${PORT}/openapi.json`
-  );
-});
+// Export the app for Vercel or start the server locally
+if (process.env.NODE_ENV !== "production") {
+  const PORT = process.env.PORT || 3000;
+  app.listen(PORT, () => {
+    console.log(`Server is running locally at http://localhost:${PORT}`);
+  });
+}
+
+module.exports = app;

vercel.json

@@ -0,0 +1,15 @@
+{
+  "version": 2,
+  "builds": [
+    {
+      "src": "src/index.js",
+      "use": "@vercel/node"
+    }
+  ],
+  "routes": [
+    {
+      "src": "/(.*)",
+      "dest": "src/index.js"
+    }
+  ]
+}