makeRequest.js

  var req = http.request(options, function(res) {
    res.setEncoding('utf8');
    var body = '';
    res.on('data', function(chunk) {
      body += chunk;
    });
    res.on('end', function() {
      // Bridge the NodeJS and golang worlds by including the golang
      // HTTP status text in the error response if appropriate.  This enables
      // the API Gateway integration response to use standard golang StatusText regexp
      // matches to manage HTTP status codes.

      var responseData = {};
      var handlerError = (res.statusCode >= 400) ? new Error(body) : undefined;
      if (handlerError) {
        responseData.code = res.statusCode;
        responseData.status = GOLANG_CONSTANTS.HTTP_STATUS_TEXT[res.statusCode.toString()];
        responseData.headers = res.headers;
        responseData.error = handlerError.toString();
      }
      else {
        try {
          // TODO: Check content-type before parse attempt
          responseData = JSON.parse(body);
        } catch (e) {
          responseData = body;
        }
      }
      var err = handlerError ? new Error(JSON.stringify(responseData)) : null;
      var resp = handlerError ? null : responseData;
      context.done(err, resp);
    });
  });
  req.on('error', function(e) {
    context.done(e, null);
  });
  req.write(stringified);
  req.end();
}