CODEWITHSUNDEEP
deploymentmernserver-sidevercel
Dzy
Dzy

Reputation: 319

Vercel deploy serverless function has crashed

Hi guys i am trying to deploy my MERN app to vercel, but i have a problem when i try to deploy the backend i get an error, even though when i tried it on the local server there was no error at all

can you help me to fix this ?

**here is the error : **

This Serverless Function has crashed.

Your connection is working correctly.

Vercel is working correctly.

500: INTERNAL_SERVER_ERROR
Code: FUNCTION_INVOCATION_FAILED

my index.js :

import express from "express"
import mongoose from "mongoose"
import cors from "cors";
import dotenv from "dotenv";

import UserRoute from "./routes/UserRoute.js"
import ContentRoutes from "./routes/contentRoute.js";
import MessageRouter from "./routes/MessageRoute.js"

import connectDB from "./mongodb/connect.js";

dotenv.config();

const app = express();
mongoose.connect

app.use(cors(
  {
    origin: {"https://hotel-backend-xi.vercel.app"},
    methods: {"POST", "GET", "DELETE", "PUT"},
    credentials: true
  }
));
app.use(express.json({ limit: "25mb" }));
app.use(UserRoute);
app.use(ContentRoutes);
app.use(MessageRouter);

app.get('/', (req, res) => {
  res.send("hello hotel")
  console.log("Hello hotel")
})

const startServer = () => {
  try {
    connectDB(process.env.MONGODB_URL)
    app.listen(5000, () => {
      console.log("Server listening on 5000 http://localhost:5000");
    });
  } catch (err) {
    console.log(err)
  }
}

startServer();

here is my dependencies (package.json) :

{
  "name": "backend",
  "version": "1.0.0",
  "description": "",
  "type": "module",
  "main": "index.js",
  "scripts": {
    "start": "nodemon index",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "bcrypt": "^5.1.0",
    "bcryptjs": "^2.4.3",
    "cloudinary": "^1.37.3",
    "cors": "^2.8.5",
    "dotenv": "^16.3.1",
    "express": "^4.18.2",
    "joi": "^17.9.2",
    "joi-password-complexity": "^5.1.0",
    "jsonwebtoken": "^9.0.1",
    "mongoose": "^7.3.1",
    "multer": "^1.4.5-lts.1",
    "uuid": "^9.0.0"
  }
}

i have tried several ways, but it doesn't work i hope you can help me to fix this problem

Upvotes: 3

Views: 18819

Answers (8)

urkidden
urkidden

Reputation: 1

I had the same Problem but I fix it by putting this vercel.json code on mine

{
  "builds": [
    {
      "src": "server.js",
      "use": "@vercel/node"
    }
  ],
  "routes": [
    {
      "src": "/(.*)",
      "dest": "/server.js",
      "methods": ["GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"]
    }
  ]
}

and it did solved the problem

Upvotes: 0

Michel Espinoza
Michel Espinoza

Reputation: 1

I had the same issue, and the solution that worked for me was deleting the .vercel folder from my repository. Once I deleted it, I tried deploying via GitHub again, and it worked.

Upvotes: 0

soumen bhunia
soumen bhunia

Reputation: 1

same issue again -->This Serverless Function has crashed.

Your connection is working correctly.

Vercel is working correctly.

500: INTERNAL_SERVER_ERROR Code: FUNCTION_INVOCATION_FAILED ID: bom1::prgwx-1723364283386-665a054597f3

If you are a visitor, contact the website owner or try again later. If you are the owner, learn how to fix the error and check the logs.

Upvotes: -1

Rahul kanyal
Rahul kanyal

Reputation: 1

For me , go to the Redeploy to Production(by clicking three dot) option and revisit the site

Upvotes: 0

Mustafa Kanat
Mustafa Kanat

Reputation: 1

I did fix issue now because vercel doesn’t allow to upload node modules. It consider itself node modules. So I deleted the node_module file in the github repo and the problem was solved

Upvotes: 0

Solomon Bonney
Solomon Bonney

Reputation: 11

What worked for me was making the name of my mongodb uri in my .env the same in the environment variables on vercel thus mine was: MONGODB_URI so I wrote the same thing on vercel there I added my connection string. Find out more on: why-does-my-serverless-function-work-locally-but-not-when-deployed

Upvotes: 1

Yash Sarvaiya
Yash Sarvaiya

Reputation: 31

It has a simple Solution Go to MongoDB in your Project Find Network Access in security tab ,

  1. Add IP Address
  2. Allow Access From Anywhere
  3. Confirm

This Solved My problem.

Upvotes: 3

Zac Anger
Zac Anger

Reputation: 7787

You're trying to run a web server, not a serverless function. You can run an Express app as a function, but what you have currently would need to be run on a conventional server, not Vercel.

Upvotes: -1

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