swaggy

An automation extension for swagger-node-express module.

This module automates the registration of REST endpoints and data models and structures the project in a bit more opinionated manner. The module also embeds Swagger UI, which is immediately available to use. It allows you to start Swagger with fewer lines of code, zero configuration and streamlines the writing of controllers.

Installation

$ npm install swaggy

Example

The main .js file would look something like this:

    var express     = require("express"),
        bodyParser  = require("body-parser"),
        swaggy      = require("swaggy"),
        app         = express();
 
    app.use(bodyParser.json());
 
    app.get("/", function(req, res){
        res.send("Hello World");
    });
 
    swaggy(app, function (err) {
        if (err) {
            return console.log(err);
        }
 
        app.listen(3001, function() {
            console.log("Listening on port 3001 ...");
            // Access Swagger UI
            console.log("REST API available at http://localhost:3001/api/docs");
        });
    });

Then create a subdirectory named rest-api, this is the default root for controllers.

Example controller (/rest-api/accounts.js):

    // Define your data trasfer objects.
    exports.models = {
        Account: {
            id: "Account",
            description: "User account information.",
            properties: {
                _id         : { type: "number" },
                prefix      : { type: "string" },
                givenName   : { type: "string" },
                surname     : { type: "string" },
                age         : { type: "number" },
                gender      : { type: "number" }
            }
        }
    };
 
    // Define an endpoint.
    exports.getAccounts = {
        spec: {
            description: "Accounts Operations",
            path: "/accounts",
            notes: "Returns all user accounts.",
            summary: "Get all accounts.",
            method: "GET",
            type: "array",
            items: {
                type: "Account"
            },
            nickname: "getAccounts"
        },
        action: function (req, res) {
            // Let's pretend we have some accounts retrieved from database.
            res.json(accounts);
        }
    };

And you are ready to go.

There are working examples at: https://github.com/rabchev/swaggy/tree/master/examples

API Reference

swaggy(app, opts, callback);

• app (required) - Express application instance.
• opts (optional) - Configuration options. See the table below for all supported options.
• callback (optional) - Called upon initialization completion. The callback has two parameters. The first parameter will contain an Error object if an error occurred, or null otherwise. While, the second parameter will be the Swagger instance that was attached to the app if it was successfully initialized.

Options:

Key	Type	Description
root	string	The base path for the REST API. Defaults to "/api".
controllersDir	string	The root directory for API controllers, modules exposing REST endpoints. Defaults to process.cwd() + "/rest-api".
apiVersion	string	The semantic version of the API. Defaults to 1.0.
docsPath	string	The URL at which the Swagger user interface will be accessible. Defaults to "/docs". NOTE: this path is relative to the root option.
resourcePath	string	The URL of the API discovery service. Defaults to "/api-docs".
format	string	Specifies whether file extensions (.json) should be assigned to REST endpoints. Defaults to empty string, extesions will not be used.
sufix	string	Defines the actual extension. Defaults to empty stirng.

Controllers

Controllers are modules that export one Swagger spec object for every endpoint. Additionally they can export models property and init method.

models property (optional)

JSON schema object as described in json-schema.org. Swaggy automatically registers the described data objects.

NOTE: the names of the described objects must be unique within a Swagger instance. Later objects will override previous ones.

init method (optional)

If present, it will be called immediately before registering the exported endpoints. The method is useful if the controller needs to do some asynchronous operations during initialization, such as reading configurations.

init(swagger, opts, callback)

• swagger (required) - The current Swagger instance.
• opts (required) - The options that ware passed to Swaggy.
• callback (required) - Must be called. The method accepts only on argument – err.

License

(MIT License)

Copyright (c) 2012 Boyan Rabchev [e-mail]. All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.