MERN - TypeError: Cannot destructure property 'username' of 'req.body' as it is undefined

Question

I am trying to authenticate an user, I'm building the backend first and testing it on Insomnia, when I send the request an error saying TypeError: Cannot destructure property 'username' of 'req.body' as it is undefined. happens.

I'm using passportjs and jwt.

This is my "server.js" file: https://www.paste.org/110929

This is my code for the "/users/signin" route: https://www.paste.org/110930

My passport.js file: https://www.paste.org/110931

I would be extremely grateful of any help as this issue has got me stuck for a good while

Answer 1

You need to add body-parser to your server.js file to catch the request body

const express = require('express')
const bodyParser = require('body-parser')
 
const app = express()
 
// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: false }))
 
// parse application/json
app.use(bodyParser.json())

UPDATE

Since express 4.16.0, you can also do:

const express = require('express')
 
const app = express()

// parse application/x-www-form-urlencoded
app.use(express.urlencoded({ extended: false }))
     
// parse application/json
app.use(express.json())