how to post data in node.js with content type ='application/x-www-form-urlencoded'

request supports application/x-www-form-urlencoded and multipart/form-data form uploads. For multipart/related refer to the multipart API.

application/x-www-form-urlencoded (URL-Encoded Forms)

URL-encoded forms are simple:

const request = require('request');

request.post('http:/url/rest/login', {
  form: {
    username: 'xyzzzzz',
    password: 'abc12345#'
  }
})
// or
request.post('http:/url/rest/login').form({
  username: 'xyzzzzz',
  password: 'abc12345#'
})
// or
request.post({
  url: 'http:/url/rest/login',
  form: {
    username: 'xyzzzzz',
    password: 'abc12345#'
  }
}, function (err, httpResponse, body) { /* ... */ })

See: https://github.com/request/request#forms

Or, using request-promise

const rp = require('request-promise');
rp.post('http:/url/rest/login', {
  form: {
    username: 'xyzzzzz',
    password: 'abc12345#'
  }
}).then(...);

See: https://github.com/request/request-promise#api-in-detail

If you are using axios package, Here is the solution.

If you have the headers as Content-type: 'application/x-www-form-urlencoded'

then you will call post API as

const response: any = await axios.post(URL, bodyData,  {
                headers: {
                    'Content-Type': 'application/x-www-form-urlencoded'
                }
            });

URL is you API url like http//YOUR_HOST/XYZ..., and

bodyData is the data which you want to send in post API,

Now how will you pass it ?

Suppose you have data as object, so you have to encode it as url, let me show you

let data = {
username: name,
password: password
}

then your bodyData will be like

let bodyData = `username=${name}&password=${password}`

This is the way you can pass your data in body if header is Content-type: 'application/x-www-form-urlencoded'

If you have a huge data which you cannot encode it manually then you can use qs module

run command npm i qs and in your file

const qs = require('qs');

...

let data = {
username: name,
password: password,
manyMoreKeys: manyMoreValues
} 
 
let bodyData = qs.stringify(data);