Only throw if actually an error.

js/common/modules/org/arangodb/request.js

@@ -29,20 +29,23 @@
 /// @author Copyright 2015, triAGENS GmbH, Cologne, Germany
 ////////////////////////////////////////////////////////////////////////////////
 
-var internal = require('internal');
-var Buffer = require('buffer').Buffer;
-var extend = require('underscore').extend;
-var httperr = require('http-errors');
-var is = require('org/arangodb/is');
-var querystring = require('querystring');
-var qs = require('qs');
-var url = require('url');
+const internal = require('internal');
+const Buffer = require('buffer').Buffer;
+const extend = require('underscore').extend;
+const httperr = require('http-errors');
+const is = require('org/arangodb/is');
+const querystring = require('querystring');
+const qs = require('qs');
+const url = require('url');
 
 class Response {
   throw(msg) {
-    var err = new httperr[this.status](msg || this.message);
-    err.details = this;
-    throw err;
+    if (this.status >= 400) {
+      let HttpError = httperr[this.status] || httperr[500];
+      let err = new HttpError(msg || this.message);
+      err.details = this;
+      throw err;
+    }
   }
   constructor(res, encoding, json) {
     this.status = this.statusCode = res.code;
@@ -81,14 +84,14 @@ function request(req) {
     req = {url: req, method: 'GET'};
   }
 
-  var path = req.url || req.uri;
+  let path = req.url || req.uri;
   if (!path) {
     throw new Error('Request URL must not be empty.');
   }
 
-  var pathObj = typeof path === 'string' ? url.parse(path) : path;
+  let pathObj = typeof path === 'string' ? url.parse(path) : path;
   if (pathObj.auth) {
-    var auth = pathObj.auth.split(':');
+    let auth = pathObj.auth.split(':');
     req = extend({
       auth: {
         username: decodeURIComponent(auth[0]),
@@ -97,14 +100,14 @@ function request(req) {
     }, req);
     delete pathObj.auth;
   }
-  var query = typeof req.qs === 'string' ? req.qs : querystringify(req.qs, req.useQuerystring);
+  let query = typeof req.qs === 'string' ? req.qs : querystringify(req.qs, req.useQuerystring);
   if (query) {
     pathObj.search = query;
   }
   path = url.format(pathObj);
 
-  var contentType;
-  var body = req.body;
+  let contentType;
+  let body = req.body;
   if (req.json) {
     body = JSON.stringify(body);
     contentType = 'application/json';
@@ -127,7 +130,7 @@ function request(req) {
     }
   }
 
-  var headers = {'content-type': contentType};
+  let headers = {'content-type': contentType};
 
   if (req.headers) {
     Object.keys(req.headers).forEach(function (name) {
@@ -146,7 +149,7 @@ function request(req) {
     );
   }
 
-  var options = {
+  let options = {
     method: (req.method || 'get').toUpperCase(),
     headers: headers,
     returnBodyAsBuffer: true
@@ -162,7 +165,7 @@ function request(req) {
   } else {
     options.maxRedirects = 10;
   }
-  var result = internal.download(path, body, options);
+  let result = internal.download(path, body, options);
 
   return new Response(result, req.encoding, req.json);
 }