Using response headers

lib/axios.js

@@ -3,6 +3,7 @@ var buildUrl = require('./buildUrl');
 var defaults = require('./defaults');
 var forEach = require('./forEach');
 var merge = require('./merge');
+var parseHeaders = require('./parseHeaders');
 var transformData = require('./transformData');
 
 var axios = module.exports = function axios(options) {
@@ -38,7 +39,7 @@ var axios = module.exports = function axios(options) {
             options.transformResponse
           ),
           status: request.status,
-          headers: headers,
+          headers: parseHeaders(request.getAllResponseHeaders()),
           config: options
         };
 

lib/parseHeaders.js

+'use strict';
+
+var forEach = require('./forEach');
+
+function trim(str) {
+  return str.replace(/^\s*/, '').replace(/\s*$/, '');
+}
+
+/**
+ * Parse headers into an object
+ *
+ * ```
+ * Date: Wed, 27 Aug 2014 08:58:49 GMT
+ * Content-Type: application/json
+ * Connection: keep-alive
+ * Transfer-Encoding: chunked
+ * ```
+ *
+ * @param {String} headers Headers needing to be parsed
+ * @returns {Object} Headers parsed into an object
+ */
+module.exports = function parseHeaders(headers) {
+  var parsed = {}, key, val, i;
+
+  if (!headers) return parsed;
+
+  forEach(headers.split('\n'), function(line) {
+    i = line.indexOf(':');
+    key = trim(line.substr(0, i)).toLowerCase();
+    val = trim(line.substr(i + 1));
+
+    if (key) {
+      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+    }
+  });
+
+  return parsed;
+};
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test/unit/parseHeaders.js

+var parseHeaders = require('../../lib/parseHeaders');
+
+module.exports = {
+  testParse: function (test) {
+    var date = new Date();
+    var parsed = parseHeaders(
+      'Date: ' + date.toISOString() + '\n' +
+      'Content-Type: application/json\n' +
+      'Connection: keep-alive\n' +
+      'Transfer-Encoding: chunked'
+    );
+
+    test.equals(parsed['date'], date.toISOString());
+    test.equals(parsed['content-type'], 'application/json');
+    test.equals(parsed['connection'], 'keep-alive');
+    test.equals(parsed['transfer-encoding'], 'chunked');
+    test.done();
+  }
+};
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