Adding request to error objects when it is available

lib/adapters/http.js

@@ -172,13 +172,14 @@ module.exports = function httpAdapter(config) {
 
           // make sure the content length is not over the maxContentLength if specified
           if (config.maxContentLength > -1 && Buffer.concat(responseBuffer).length > config.maxContentLength) {
-            reject(createError('maxContentLength size of ' + config.maxContentLength + ' exceeded', config));
+            reject(createError('maxContentLength size of ' + config.maxContentLength + ' exceeded',
+              config, null, lastRequest));
           }
         });
 
         stream.on('error', function handleStreamError(err) {
           if (aborted) return;
-          reject(enhanceError(err, config));
+          reject(enhanceError(err, config, null, lastRequest));
         });
 
         stream.on('end', function handleStreamEnd() {
@@ -196,14 +197,14 @@ module.exports = function httpAdapter(config) {
     // Handle errors
     req.on('error', function handleRequestError(err) {
       if (aborted) return;
-      reject(enhanceError(err, config));
+      reject(enhanceError(err, config, null, req));
     });
 
     // Handle request timeout
     if (config.timeout && !timer) {
       timer = setTimeout(function handleRequestTimeout() {
         req.abort();
-        reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED'));
+        reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED', req));
         aborted = true;
       }, config.timeout);
     }

lib/adapters/xhr.js

@@ -84,7 +84,7 @@ module.exports = function xhrAdapter(config) {
     request.onerror = function handleError() {
       // Real errors are hidden from us by the browser
       // onerror should only fire if it's a network error
-      reject(createError('Network Error', config));
+      reject(createError('Network Error', config, null, request));
 
       // Clean up request
       request = null;
@@ -92,7 +92,8 @@ module.exports = function xhrAdapter(config) {
 
     // Handle timeout
     request.ontimeout = function handleTimeout() {
-      reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED'));
+      reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED',
+        request));
 
       // Clean up request
       request = null;

lib/core/createError.js

@@ -3,15 +3,16 @@
 var enhanceError = require('./enhanceError');
 
 /**
- * Create an Error with the specified message, config, error code, and response.
+ * Create an Error with the specified message, config, error code, request and response.
  *
  * @param {string} message The error message.
  * @param {Object} config The config.
  * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ @ @param {Object} [request] The request.
  @ @param {Object} [response] The response.
  * @returns {Error} The created error.
  */
-module.exports = function createError(message, config, code, response) {
+module.exports = function createError(message, config, code, request, response) {
   var error = new Error(message);
-  return enhanceError(error, config, code, response);
+  return enhanceError(error, config, code, request, response);
 };

lib/core/enhanceError.js

@@ -6,14 +6,16 @@
  * @param {Error} error The error to update.
  * @param {Object} config The config.
  * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ @ @param {Object} [request] The request.
  @ @param {Object} [response] The response.
  * @returns {Error} The error.
  */
-module.exports = function enhanceError(error, config, code, response) {
+module.exports = function enhanceError(error, config, code, request, response) {
   error.config = config;
   if (code) {
     error.code = code;
   }
+  error.request = request;
   error.response = response;
   return error;
 };

lib/core/settle.js

@@ -19,6 +19,7 @@ module.exports = function settle(resolve, reject, response) {
       'Request failed with status code ' + response.status,
       response.config,
       null,
+      response.request,
       response
     ));
   }