request: TypeError: source.on is not a function

formData accepts only three types of elements viz. string, Buffer and Stream, so try this:

    formData = {
      name: JSON.stringify( { first: 'Saeid', last: 'Alidadi' } )
    }

@abhiCR7 Not everything. The rule is that values of formData object can only by any of these: string, Buffer, Stream. @VijayakumarManickam is right.

In my case I had to change:

formData: {
        variables: {
          file: fs.createReadStream('./assets/car.jpg')
        }
      }

to

formData: {
        'variables.file': fs.createReadStream('./assets/car.jpg')
      }

I tried to post something like this

formData = {
  name: { first: 'Saeid', last: 'Alidadi' }
}

and got this error also

nope, formData has to be an object. ran into this problem myself 😃

I’ve stumbled upon the same issue and found an answer that worked for me here - https://github.com/request/request/issues/1495

Basically, you still need to send the formData as object, the difference is that you have to structure your formData object similar to the following…

formData: {
    'name[first]': 'Byron',
    'name[last]': 'Alfonso'
}

As seen in the example. Instead of sending the name as an object with first and last property, the first and last were sent as if you are accessing an object like you would an array. Ex: name[first] vs. name.first

Note: Credits to @joshuamcginnis for the answer.

@ketantada are you cloning or modifying the options object in some other way in your code? The stream object can break due to that.

everything needs to be stringified inside formData. try: return rp.post({ url: uri("collections/people"), formData: JSON.stringify({ 'subscriptions': [ { "subscription": subscriptionId, "quantity": newQty, "product": product, "prorate": true } ] }), });

Just in case. It worked for me.

let options = {
      method: 'POST',
      uri: 'http://webservice.com',
      formData: {
        wscx_id: input.dni,
        wscx_usu: user,
        wscx_pas:password
      },
      json: true // Automatically stringifies the body to JSON
}

I am getting error: TypeError: source.on is not a function at Function.DelayedStream.create (/node_modules/delayed-stream/lib/delayed_stream.js:33:10) at FormData.CombinedStream.append (/node_modules/combined-stream/lib/combined_stream.js:44:37) at FormData.append (/node_modules/form-data/lib/form_data.js:74:3) at appendFormValue (/node_modules/request/request.js:323:21) at Request.init (/node_modules/request/request.js:334:11) at new Request (/node_modules/request/request.js:128:8) at request (/node_modules/request/index.js:53:10) My code is:

var options = {
  url: 'http://...',
  method: 'POST',
  formData: {
    file: fs.createReadStream(__dirname + '/file.jpg'),
    first_name: 'first_name'
  }
}
request(options, function() {})

Request Version: request@2.85.0 node version: node v9.8.0