Ha Tuan Em

Posted on Jul 4, 2021 • Edited on Sep 29, 2021

Deploy Express.js app to Vercel

#javascript #vercel #express #node

After research how to deploy Express.js app to Vercel. Finally, I found and got have an application has deployed to Vercel. It's take a lot of time from me but I am happy and hope this article will help something to you.

I. First of all, creating new Github repository and init new project nodejs.

II. Creating new project in `Vercel`

III. Installing package `express` to nodejs app.

IV. Creating and endpoint file `index.js` in root source.

V. Creating APIs in `./api` folder or you can rename anything which you like.

Here is an example for manage product from ./api/product.

VI. Testing before commit source to Github.

After testing is 👌. Commit them to git to see something awesome.

VII. Ready to serve in Vercel.

VIII. Something went wrong in Vercel.

Because Vercel just supports API from Framework JS as NEXT.JS, Nuxt.JS,... So if we develop a standalone application we need to configure or tell the server of Vercel how is it work by vercel.json file.

IX. Add new `vercel.json` file to root source.

Commit it to GitHub and make sure version is 2 - this is required from Vercel.

X. Done, enjoy your moment.

Thanks for reading.
And I hope something good to you.
Here is repository which use in this post.

XI. Or you can follow this tutorial in youtube.

Latest comments (25)

Sh Raj • Apr 13 '24 • Edited

{
    "version": 2,
    "builds": [
      {
        "src": "server.js",
        "use": "@vercel/node"
      }
    ],
    "routes": [
      {
        "src": "/(.*)",
        "dest": "/"
      }
    ]
  }

kpripper • Jun 6 '23

Your app doesn't work express-vercel-theta.vercel.app
Cannot GET /

Siddharth Talesara • May 19 '23

Thanks man. I was stuck in last step and this helped me a lot.

thechallengerr • Mar 22 '23

But how can I deploy a express - handlebars to vercel ? Here is my folder structure and vercel.json :

"builds": [
        {
            "src": "src/*.js",
            "use": "@vercel/node"
        }
    ],
    "routes": [
        {
            "src": "/(.*)",
            "dest": "./src/routes/index.js"
        }
    ]

Arafat • Sep 27 '23

have you got any answer?

Agustin Cruz • Dec 2 '22

Hi ! I am having an issue, I can see my express app (which has front too) in localhost successfully, but when i deploy it in vercel, I cannot see the app, what should i do?}
ThankS!

MechInTech • Oct 17 '22

this is awsome ,hey can i use mongodb data base for this as well

Maria Campbell • Nov 29 '22

I'm working on a next.js app which uses mongod and host my backend on MongoDB Atlas. Yes, you can use MongoDB. And better yet would be to use Mongoose because of its schemas.