How to use FormData in node.js without Browser?

You can use form-data – npm module. because formData() isn’t NodeJS API

Use it this way,

var FormData = require('form-data');
var fs = require('fs');
 
var form = new FormData();
form.append('my_field', 'my value');
form.append('my_buffer', new Buffer(10));
form.append('my_file', fs.createReadStream('/foo/bar.jpg'));