Skip to content
Create clients for Swagger API Specifications.
Branch: master
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.

Swagger Node Client

Create client APIs for Swagger API Specifications.

Given a schema object, this tool returns an api object which can be used to interact with the API server described by the schema. The schema can be generated using fetch-swagger-schema).


npm install swagger-node-client to install, then var swaggerNodeClient = require('swagger-node-client') and pass in your schema object (generated using fetch-swagger-schema).


First, a simple example. Let's say you saved a schema json file, then loaded it into your app as the schema variable. Now you can call operations on the API by using swaggerNodeClient:

// Assuming the variable schema exists
var swaggerNodeClient = require('swagger-node-client');
var api = swaggerNodeClient(schema);

// for apiKey authorization use: api.auth('my-token')
// for basicAuth use: api.auth('username', 'password')
// authorization may be set for any level (api, api.resource, or api.operation){

Here's a more advanced case in which we're leveraging promises to implement a 'getOrCreate' method, which doesn't actually exist within the api:

var swaggerNodeClient = require('swagger-node-client');
var api = swaggerNodeClient(schema);

function getOrCreate(id, name){
        // If pet doesn't exist, create a new one.
        if(response.status === 404){
            var pet = {id: id, name: name};
                return pet;

        // Unknown error

getOrCreate(23, 'bob').then(function(pet){
    console.log('Got pet:', pet);
}, function(error){


api = swaggerNodeClient(schema)

  • schemaObject - A json object describing the schema (generated by fetch-swagger-schema).
  • api - An object which can be used as the api for the given schema. The first-level objects are the resources within the schema and the second-level functions are the operations which can be performed on those resources.


A map of all the resources as defined in the schema to their operation handler (e.g.

responsePromise = api.<resource>.<operationHandler>(data, options)

This is the actual operation function to initiate a request to the API endpoint (e.g.,

The operation handler takes two parameters:

  • data - A map of the operation data parameters. If the operation only has one parameter, the value may be used directly (i.e., callback) is the same as{petId: 1}, callback)).
  • options - A map of the options to use when calling the operation (see below for full list).

The response promise is an ES6 promise. A HTTP response in the 200s range will result in a resolved promise and anything else will result in a rejected promises. A resolved promise value is whatever the server responded with (JSON is automatically parsed). A rejected promise value is a map with a status, data, and error properties, where the status is the HTTP status, data is the response body from the server, and error is a JavaScript error (if any occurred).

Here's an example:

// use of .then(successHandler, failHandler)
    console.log('successful response:', response);
}, function(response){
    console.log('request failed due to error:', response.error);


After installing nodejs execute the following:

git clone
cd swagger-node-client
npm install
npm run dev

The build engine will test and build everything, start a server hosting the example folder on localhost:3000, and watch for any changes and rebuild when nescessary.

To generate minified files in dist:

npm run dist
You can’t perform that action at this time.