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FastAPI is a modern, fast web framework for building APIs with Python 3.7+ based on standard Python type hints. Pagination is a common requirement in APIs, especially when dealing with large datasets. In this tutorial, we'll explore how to implement pagination in FastAPI using the fastapi-pagination library.
Before you begin, make sure you have the following installed:
You can install fastapi and fastapi-pagination using pip:
Let's start by creating a simple FastAPI application. Create a file named main.py and add the following code:
This sets up a basic FastAPI application with some fake data and a model (Item).
Now, let's implement pagination using the fastapi-pagination library. Update your main.py file as follows:
In this updated code:
Now, run your FastAPI application:
Visit http://127.0.0.1:8000/docs to access the Swagger documentation. You'll see the /items/ endpoint with pagination parameters. Try different values for page and page_size to see the pagination in action.
Congratulations! You've successfully implemented pagination in a FastAPI application using fastapi-pagination.
In this tutorial, we covered the basics of implementing pagination in a FastAPI application using the fastapi-pagination library. Pagination is crucial for efficiently handling large datasets in API responses. Feel free to explore additional features provided by fastapi-pagination for more advanced use cases.
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