swagger.js is a javascript client for use with swaggering APIs.


swagger.js is a javascript client for use with swaggering APIs. It's written in CoffeeScript and tested with Jasmine.

Find out more about the swagger project at swagger.wordnik.com, and follow us on Twitter at @swagger_doc.

Point swagger.js at a resource discovery file like api.wordnik.com/v4/resources.json and it builds itself at runtime.

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript" src="https://raw.github.com/wordnik/swagger.js/master/lib/swagger.js"></script>
<script type="text/javascript">
  $(function() { 
    window.wordnik = new SwaggerApi({
      discoveryUrl: "http://api.wordnik.com/v4/resources.json",
      apiKey: "MY_API_KEY",
      successfunction() {
        console.log('Shall we dance?');
  1. Fork the repo.
  2. Clone it.
  3. Open spec.html in your browser.
  4. Follow along in the Javascript console.
wordnik = new SwaggerApi({
  api_key: 'YOUR_API_KEY', // Don't have a Wordnik API key? Get one at developer.wordnik.com 
  verbose: true,
  successfunction() { console.log("Your client is ready to swagger."); }

When initializing a swagger.js SwaggerApi class, the default discoveryUrl is http://api.wordnik.com/v4/resources.json, so we skipped it above.

After executing the above code you should see the success message in your console.

Now you have access to an object called wordnik. This object is what swagger.js builds at runtime when you point it at a discoveryUrl. Try exploring it in the console:


You also get some console help() methods for quick reference. Some examples:

// Apis 
// Resources 
// Operations 

There are two ways to make a request:

// shorthand form 
wordnik.word.getDefinitions(args, callback);
// longhand form 
wordnik.resources.word.operations.getDefinitions.do(args, callback);
// example usage 
wordnik.word.getDefinitions({word: 'bliss'}, function(definitions) {

You can include your own headers in the args object:

args = {word: 'swole', limit:5}
args.headers = {magic: 'potion'}
callback = function(examples) { console.log(examples); }
wordnik.word.getExamples(args, callback);

If you want to initialize the Request without actually firing off a network request you can set a header called mock with any value.

For GETs and POSTs, you can include the request body in the args object:

args = {}
args.body = {name: "gizmo", description: "A thing that does stuff."}
callback = function(thing) { console.log(thing); }
myApi.things.createThing(args, callback);

Set verbose to true when initializing your client to see cURL equivalents of your requests in the browser console, complete with headers:

wordnik = new SwaggerApi({
  api_key: 'YOUR_API_KEY',
  verbose: true,
  successfunction() {
    args = {
      word: 'dog'
      headers: {fubar: 'maybe'}
    wordnik.word.getDefinitions.do(args, function(definitions){
      for (var i = 0; i < definitions.length; i++) {
        var definition = definitions[i];
        console.log(definition.partOfSpeech + "" + definition.text);
// Console output: 
// curl --header "fubar: maybe" http://api.wordnik.com/v4/word.json/dog/definitions?api_key=YOUR_API_KEY 
// dog 
// noun: A domesticated carnivorous mammal (Canis familiaris) related to the foxes and wolves and raised in a wide variety of breeds. 
// noun: Any of various carnivorous mammals of the family Canidae, such as the dingo. 
// noun: A male animal of the family Canidae, especially of the fox or a domesticated breed. 
// etc... 

Please fork the code and help us improve swagger.js. Send us a pull request and we'll mail you a wordnik T-shirt!

Swagger.js is written in CoffeeScript, so you'll need Node.js and the CoffeeScript compiler. For more detailed installation instructions, see coffeescript.org/#installation.

open http://nodejs.org/#download 
npm install -g coffee-script
# The 'dev' cake task will:
# 1. Open source files in your $EDITOR
# 2. Open and run the Jasmine specs in your browser.
# 3. Watch for changes to CoffeeScript files and auto-compile them to Javascript.
cake dev
# List all cake tasks:

Copyright 2011-2012 Wordnik, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.