Expressjs Error- ReferenceError: cors is not defined

I am creating An ExpressJs Backend when I run this backend I am getting this error.


ReferenceError: cors is not defined
    at Object.<anonymous> (C:\Users\hp\Desktop\Entri\kanba\index.js:5:5)
    at Module._compile (node:internal/modules/cjs/loader:1256:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1310:10)
    at Module.load (node:internal/modules/cjs/loader:1119:32)
    at Module._load (node:internal/modules/cjs/loader:960:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:23:47

I am sending a get request from postman. I expect response from backend but what I get it an error.

>Solution :

It seems like you have not installed the middleware called cors.

Run this command in your project’s terminal to install cors

npm install cors

Now you should import the cors package in your application

const cors = require(‘cors’)

For more information, please checkout express cors documentation

Hope this works. Have a good day!

Leave a Reply