The base URL for the API is specified within the host field. The parameters of the Swagger UI document such as document title, version, description etc. The LazyString functionality of flasgger module is used to set default values for certain parameters during runtime. The template and the configuration for the Swagger UI document are defined as dictionary objects as follows: swagger_template = dict( info = You need the JSON encoder to create JSON from the API objects for which you can use LazyJSONEncoder class. from flask import Flask, request from flasgger import Swagger, LazyString, LazyJSONEncoder from flasgger import swag_fromĭefine the Flask app using the Flask method: app = Flask(_name_) The following is the import block of our Python script. If you want to update the module while installing it, you can use pip install -U or if you are using Python virtual environments and wish to install a specific version of the module for your project, you can execute pip install = for example, pip install Flask=2.0.0īut I would recommend that you should install the latest versions.
$ pip install Flask $ pip install flasgger You need to install the following Python packages using pip install to run this example. Finally, we will call the created JSON or YAML file inside the Python program where the API definition is present.
Next, we will create a JSON or a YAML file to implement API functionality in SwaggerUI.First, we will create the API using Flask web API framework.We will follow the following steps to build a Swagger UI document for an API function: If you need to gain a basic understanding on Flask APIs, you can refer to the official Flask RESTful API documentation. I will use Python and YAML files to implement Swagger UI and API with explanation.Īs a pre-requisite, you are expected to have a basic understanding on Flask APIs and how they work. In this article, I explain step-by-step process for creating a Swagger UI document to get a “Hello World” response through an API which is built in Flask REST API framework. Enable you to create and share API documentation.Swagger UI documents enjoy many advantages when compared to other document types:
It is used to create interactive documents for APIs which are built to serve a specific purpose. Swagger is a web-based API documentation framework.
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