How to use FormData in node.js without Browser?

user_11657334 0
Viewed 89633

I want to make a post request in nodejs without browser since it is backend code.

const formdata = new FormData()
formdata.append('chartfile', file);

But above code gives me error as FormData not defined. I am working with ES6.

Anybody, who can let me know how to use the FormData in nodejs?

form-data node.js multipartform-data forms javascript
6 Answers

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'));
user_132101990

No need for an npm module, URLSearchParams does the same exact thing!

Original Example

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

Axios Example

const formData = new URLSearchParams();
formData.append('field1', 'value1');
formData.append('field2', 'value2');
const response = await axios.request({
  url: 'https://example.com',
  method: 'POST',
  headers: {'Content-Type': 'application/x-www-form-urlencoded'},
  data: formData
});
user_76667250

FormData is a part of JS web API (not included in native NodeJS). You can install the form-data package instead.

user_14296180

In my opinion the cleanest solution that requires no additional dependencies is:

const formData = new URLSearchParams({
  param1: 'this',
  param2: 'is',
  param3: 'neat',
})
user_86929140

I would suggest the npm module formdata-node because it's a complete (spec-compliant) FormData implementation for Node.js. It supports both ESM/CJS targets, so EM6 is supported. You can find a few examples at the npm module page.

user_1982190
user_13247090
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