Improve error handling

lib/core/enhanceError.js

@@ -0,0 +1,17 @@
+'use strict';
+
+/**
+ * Update an Error with the specified config and optional error code.
+ *
+ * @param {Error} error The error to update.
+ * @param {Object} config The config object.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @returns {Error} The error.
+ */
+module.exports = function enhanceError(error, config, code) {
+  error.config = config;
+  if (code) {
+    error.code = code;
+  }
+  return error;
+};