python api development fundamentals pdf github

Published: 11 December 2023
on channel: CodeLink

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API (Application Programming Interface) development is a crucial aspect of modern software development, allowing different software systems to communicate and interact. In this tutorial, we will explore the fundamentals of developing APIs using Python. The tutorial will cover creating a simple API, documenting it with Swagger, and hosting the documentation on GitHub. We'll also provide code examples to help you understand each step.
Before we start, ensure you have the following installed:
You can install Flask and Flask-RESTful using the following:
Let's create a basic API with Flask and Flask-RESTful. Create a file named app.py and add the following code:
This code defines a simple API with a single endpoint ("/") that responds with a JSON message.
Save the file and run the following command in your terminal:
Visit http://127.0.0.1:5000/ in your browser, and you should see the "Hello, World!" message.
Swagger is a powerful tool for documenting APIs. Let's integrate Swagger into our API. Install the necessary library:
Now, update your app.py file:
This code adds Swagger documentation to your API, providing details about the available endpoints and their functionality.
To run the API with Swagger UI, modify the if _name_ == '__main__': block in your app.py file:
Now, run the following command:
Visit http://127.0.0.1:5000/swagger to access the Swagger UI and interact with your API.
Your API documentation is now accessible at https://username.github.io/repository.
Congratulations! You've successfully created a Python API, documented it with Swagger, and hosted the documentation on GitHub. This tutorial covers the fundamentals, and you can explore more advanced features as you delve deeper into API development with Python.
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