How To Correctly Sign An Http Request To Twitter's Rest Api V1.1 In Nodejs?

I'm only getting error 32 'Could not authenticate you' when I call twitter.request() (defined in my cloud/twitter.js file) inside Parse Cloud Code. I've done everything Twitter tol

Solution 1:

It turned out to be an easy fix (thankfully). The problem lied in a & trailing my signature (facepalm). Here's the function I had to change.

function getAuthSignature (user, request, oauth) {
  var signingKey, body, signatureBase;

  signingKey =
    ENCODING_METHOD(CONSUMER_SECRET) + '&' + ENCODING_METHOD(TOKEN_SECRET);

  body = 
    mapObject(oauth, ampersandEncoding)
    .concat(mapObject(request.params, ampersandEncoding))
    .sort();

  // Remove trailing ampersand. (aka the fix)
  body.push(body.pop().replace('&', ''));

  signatureBase =
    request.method.toUpperCase() + '&' +
    ENCODING_METHOD(request.url) + '&' +
    ENCODING_METHOD(body.join(''));

  return crypto.createHmac('sha1', signingKey)
               .update(signatureBase)
               .digest('base64');
};