response body(res.body) is always undefined.

version: 1.8.3 
platform: nodejs

I am trying to use super agent in my nodejs application and find an issue that ‘res.body’ in my response is always undefined. The content in response is in Json and I can see it in res.text. After some investigation I am able to spot the code which cases this issue:

// /lib/node/index
// line 883 to 886

parse(res, function(err, obj){ // Expects an argument
  if (err && !self._aborted) self.callback(err);
  res.body = obj;
}

// lib/node/parsers/text.js
module.exports = function(res, fn){
  res.text = '';
  res.setEncoding('utf8');
  res.on('data', function(chunk){ res.text += chunk; });
  res.on('end', fn); // No argument is given.
};

As the above indicates, parse function’s callback expects one argument but nothing is given when it is called.

[kornelski]

The text parser sets only .text.

For custom parsers it’s sort-of broken. The end callback doesn’t wait for the parser to finish - #950, so you need .buffer(true).

[jeremy-linchao]

thanks, @pornel