Question 136685 in Javascript Question posted in
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Javascript – nodejs – req.body returns undefined when sent to be handled in anther file

I’m working on a project involving nodejs and I’m having a problem with a request body that is undefined

On the client side I fetch some data

I also get the following error telling me the property is undefined or null

TypeError: Cannot destructure property email of ‘undefined’ or ‘null’.

Anyone know what might cause this and how I can fix this, all help is greatly appreciated.

Tags:

2

Answers


  1. 0

    here ‘s fixing

    const userData = {
username:'deathstar',
email:'[email protected]',
password:'ssss'

    };

    fetch(API_URL, {
method: 'POST',
body: JSON.stringify(userData),
headers: {
    'content-type': 'application/json'
}

    });

    this is back-end code too

     const express = require('express');
  const cors = require('cors');
  
  const fs = require('fs');
   const path = require('path');
   const app = express();

   const port = 5500;

   app.use(cors()); // enable CORS

  app.use(express.json());
  app.use(express.urlencoded({ extended: true }));

   app.use(express.static(__dirname + '/public'));

   app.get('/',(req,res)=>{

 res.sendFile('index.html');
  });

  app.post('/signup', (req, res) =>{
   console.log(req.body);

      }); 

     app.listen(port, () => console.log(`Example app listening on port ${port}!`));
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  2. 0

    Convert body: JSON.stringify(userData), to body: userData
    Add app.use(express.json() above app.post so you can work with the json. req.body should have an email property on the server when fetching now. Your function signup takes 2 arguments, (req, res) instead of (req.body) BTW.

    const userData = {
    username,
    email,
    password
};

fetch(API_URL, {
    method: 'POST',
    body: userData,
    headers: {
        'content-type': 'application/json'
    }
});

    const express = require('express');
const cors = require('cors');
const { signup, login } = require ('./authController');

app.use(express.json())

app.post('/signup', signup)

    const { createUser, findUserByEmail } = require('./user');
const { comparePassword, createToken } = require('./auth');

// Controller function to handle a signup request
async function signup(req, res) {
    console.log(req.body);
  try {
   
  } catch (error) {
    
  }
}
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