How to attach file to Trello card without using html forms.

Question

The file parameter documentation for the POST /1/cards/[card id or shortlink]/attachments API call does not specify how the file should be encoded. For "Valid Values" it simply says "A file". If we are using html forms, then we can attach file using below code. But I am not using html forms. I need to call Trello card attachment API from server side of Node JS. I was wondering if anyone has a working example of how to get files into Trello cards using the API.

Mohammad Abdurraheem · Answer

I used rest API to upload any kind of file from server side using nodejs

Gmanik446 · Answer

Hi Caity,

Thank you for your answer. I used form-data node module to upload the file from server side of node.js.

Gmanik446 · Answer

I used form-data node module to upload the file from server side of node.js.

var FormData = require('form-data');
var formData = new FormData();
var appkey = "Trello App key";
var token = "Trello Access Token";
var fileLocation = "Ypur file location";
var cardId = "Trello card id";

formData.append("key", appkey);
formData.append("token", token);
formData.append("file", fs.createReadStream(fileLocation));

var requestObj = request.post('https://trello.com/1/cards/' + cardId + '/attachments', attachmentCallback);
requestObj._form = formData;

function attachmentCallback(err, httpResponse, body) {
 if (httpResponse.statusCode == 200) {
   console.log("successfully attached the file " );
 } else {
    console.log('Could not attach the file to card:', httpResponse.statusMessage);
 }
}