Swagger
swagger
#swagger
Table of Contents
About
1
Chapter 1: Getting started with swagger
2
Remarks
2
Examples
2
Introduction - Installation - Setup (Developing in Node.js)
Chapter 2: springfox
Examples
2
4
4
Override default response messages
4
Turn of default response messages
4
Set your own default response messages
4
Setup springfox using swagger-ui in spring-boot
4
#1 Getting springfox with Maven
5
#2 Configure your application to use swagger
5
#3 Document your API
5
Chapter 3: swagger-ui
7
Remarks
7
Examples
7
swagger-ui with jersey REST WS
Credits
7
15
About
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1
Chapter 1: Getting started with swagger
Remarks
This section provides an overview of what swagger is, and why a developer might want to use it.
It should also mention any large subjects within swagger, and link out to the related topics. Since
the Documentation for swagger is new, you may need to create initial versions of those related
topics.
Examples
Introduction - Installation - Setup (Developing in Node.js)
Introduction:
Swagger is a set of rules/specifications for a format describing REST APIs. It provides a powerful
and actively developed ecosystem of tools around this formal specification like code generators
and editors. The best part of Swagger is that the documentation of methods, parameters, and
models are tightly integrated into the server code, allowing APIs to always stay in sync. Here¡¯s a
link giving a brief overview of what is swagger: getting-started.
Writing specifications:
The specifications can be written in either JSON or YAML. And so we make the swagger.json or
swagger.yaml file accordingly. The online editor can be used for creating the file. Here¡¯s a link
describing the syntax for specifications:
Ways to use swagger:
1. API-first approach (Top down approach): Use swagger editor ¡ú Write swagger definitions ¡ú
Use swagger-codegen and swagger-ui to generate APIs
2. Service first approach (Bottom up approach): Develop JAX-RS resource classes using
swagger annotations ¡ú Use swagger-core to automatically generate the swagger definitions
¡ú Using swagger-codegen and swagger-ui to generate client APIs and documentations. The
above can be done during maven build during swagger maven plugin.
Installation and Setup
In this section, we will install swagger, setup the swagger UI and generate server side and client
SDK using it. For installing swagger using Node package manager execute the following
command:
npm install -g swagger
Use of '-g' flag will ensure the module is installed globally. Next, we will create a project using the
2
following command:
swagger project create
This will ask the user to select a framework for developing the REST APIs. Express can be
selected for the same. This will create the project directory with following items and a
README.md file in each of them:
? api/
controllers/
helpers/
mocks/
swagger/
config/
test/
api/
controllers/
helpers
app.js
package.json
¡ð
¡ð
¡ð
¡ð
?
?
¡ð
¡ð
¡ð
?
?
The server is basically ready now and can be started using this command to be executed in
project root:
swagger project start
If the host server is set as localhost and port number is not modified in app.js file, then the server
is started at: Now the swagger UI can be used to further develop our REST
APIs. This can be started in a new terminal using:
swagger project edit
This will open up the swagger editor in a browser tab on a randomly generated port. A sample
hello GET request can be seen already present in the swagger.yaml file. Any further change to
this file will cause the server to restart on its own.
In the paths section, the value used for x-swagger-router-controller should be the javascript file
name in controllers folder. As a sample, hello_world.js should be present in the controllers
directory. Also, the value for operationId parameter represents the function name in the above
javascript file. This is where business logic should be written. Thus, our swagger setup is complete
and can be used to further develop our API.
Read Getting started with swagger online:
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