Nowadays, choosing Python to develop applications is becoming a very popular choice. As StackOverflow recently analyzed, Python is one of the fastest-growing programming languages, having surpassed even Java in the number of questions asked on the restful api python flask platform. On GitHub, the language also shows signs of mass adoption, occupying the second position among the top programming languages in 2021. In this guide, you will learn how to create a basic REST API using Flask microframework for Python.
It just sets a software architectural style for writing web applications and APIs and simplifies the interfaces within and outside the application. Web service https://remotemode.net/ APIs that are written to follow the REST principles are called RESTful APIs. Requests can be sent to the /programming_languages URL using the GET HTTP verb.
Before starting this, I assume that you are familiar with the basic Python programming language and Flask framework. Unfortunately, any changes that you make won’t persist when you restart your Flask application. That’s why you’ll plug a proper database in to your project in the next part of this tutorial series. With all the endpoints to manage people in place, it’s time to try out your API. Since you used Connexion to connect your Flask project with Swagger, your API documentation is ready for you when you restart your server.
What is REST API in Python Flask?
REST API services let you interact with the database by simply doing HTTP requests. In this article you learn how to write a REST server using the Flask. This is often how the backend of web apps is created. Returning data is in JSON format and requests we are using are PUT, DELETE, POST, and GET.
To access data in the request body, we can use the request.get_json() method, which parses the request body as JSON and returns a Python dictionary. It is an architectural style for building web services that use HTTP protocol to create web APIs. RESTful APIs are stateless and allow clients to access and manipulate web resources using a standard set of operations. But if the user does not exit the default response message will be returned to the user and no record will be deleted.
What is REST?
Components are building blocks in your OpenAPI specification that you can reference from other parts of your specification. Before continuing on your way to building out your REST API with multiple endpoints, take a moment and explore the API a bit more in the next section. As PEOPLE is a module variable, its state persists between REST API calls. However, any data that you change will be lost when you restart your web application. Now that you’ve got a working web server, you can add your first REST API endpoint. To do this, you’ll use Connexion, which you installed in the previous section.
- For this tutorial, you will need Python 3 and the Flask web framework.
- In the case of this tutorial, the resource is an instance of a programming language.
- We will then initialize our database by creating an object of the SQLAlchemy class.
- When your Flask app finds the provided last name in PEOPLE, then it returns the data for this particular person.