{"id":2487,"date":"2024-01-17T11:59:27","date_gmt":"2024-01-17T11:59:27","guid":{"rendered":"https:\/\/learning.workfall.com\/learning\/blog\/?p=2487"},"modified":"2025-09-10T08:38:58","modified_gmt":"2025-09-10T08:38:58","slug":"how-to-implement-pagination-using-fastapi-in-python","status":"publish","type":"post","link":"https:\/\/learning.workfall.com\/learning\/blog\/how-to-implement-pagination-using-fastapi-in-python\/","title":{"rendered":"How to Implement Pagination Using FastAPI in Python?"},"content":{"rendered":"<span class=\"rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\">12<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Illustrations\/1.png\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p class=\"has-text-align-justify\">Navigating lots of info can be tricky. Let\u2019s find out how FastAPI makes it easy with pagination, breaking down content for a smoother ride.&nbsp;<\/p>\n\n\n\n<p>We will do a step-by-step implementation with FastAPI, a top-notch Python tool, which helps organize info better.&nbsp;<\/p>\n\n\n\n<p>Improve reading, speed, and user happiness using pagination tricks.&nbsp;<\/p>\n\n\n\n<p>Let\u2019s get started!<\/p>\n\n\n\n<p>In this blog, we will cover:<\/p>\n\n\n\n<ul><li>What is Pagination?<\/li><li>What is FastAPI?<\/li><li>Hands-on<\/li><li>Conclusion<\/li><\/ul>\n\n\n\n<h2>What is Pagination?<\/h2>\n\n\n\n<p class=\"has-text-align-justify\">Pagination is a method used to organize and present content, whether in printed documents or on digital platforms, in a more manageable and user-friendly manner.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-justify\">It involves breaking down a large body of content into smaller, discrete sections or pages, making it easier for users to navigate, read, and digest.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">In printed materials like books, magazines, or newspapers, pagination refers to the allocation of content into pages with sequential numbers for reference.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-justify\">This system allows readers to locate specific information quickly, flip through pages, and maintain a sense of structure within the document.<\/p>\n\n\n\n<p>In the digital realm, especially on websites and applications, pagination serves a similar purpose.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Lengthy articles, search results, or lists of items (such as products on an e-commerce site) are divided into multiple pages, each containing a portion of the content.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Users can navigate between these pages by clicking on links, typically represented as page numbers or navigation buttons like &#8220;Next&#8221; and &#8220;Previous&#8221;.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">This functionality is particularly useful when dealing with extensive datasets or articles, as it prevents overwhelming users with too much information on a single page.<\/p>\n\n\n\n<h3>Why do we need Pagination?<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Illustrations\/2.png\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Pagination is essential for several reasons:<\/p>\n\n\n\n<ul><li><strong>Improved Readability:<\/strong> Breaking content into smaller, discrete pages makes it more readable and less overwhelming for users. Long, continuous text can be tiresome to read, whereas shorter sections are easier to digest.<\/li><\/ul>\n\n\n\n<ul><li><strong>Faster Loading Times:<\/strong> In digital contexts, loading an entire webpage with extensive content can be slow, especially on slower internet connections or devices with limited resources. Pagination helps by loading only one page at a time, reducing the initial load time and providing a more responsive user experience.<\/li><\/ul>\n\n\n\n<ul><li><strong>Enhanced User Experience:<\/strong> Users can navigate through content more easily with pagination, whether it&#8217;s a lengthy article, search results, or product listings. They can jump to specific sections or items without scrolling endlessly.<\/li><\/ul>\n\n\n\n<ul><li><strong>Reduced Scrolling:<\/strong> Continuous scrolling can be tiresome and frustrating, especially on touch devices. Pagination offers a clear structure and allows users to access content without excessive scrolling.<\/li><\/ul>\n\n\n\n<ul><li><strong>Logical Organization: <\/strong>Pagination often reflects the logical organization of content. For instance, in search results, each page may contain a set number of relevant items. In books or magazines, chapters or articles are naturally divided into pages.<\/li><\/ul>\n\n\n\n<ul><li><strong>Accessibility:<\/strong> Pagination can improve accessibility for users with disabilities. Screen readers and other assistive technologies can more easily identify and navigate discrete pages.<\/li><\/ul>\n\n\n\n<p>In summary, pagination is a valuable design and organizational strategy that enhances user experience, facilitates content management, and improves the performance and accessibility of digital and printed materials.<\/p>\n\n\n\n<h2>What is FastAPI?<\/h2>\n\n\n\n<p>FastAPI is a modern, high-performance web framework for building APIs with Python based on standard type hints.&nbsp;<\/p>\n\n\n\n<p>It has the following key features:<\/p>\n\n\n\n<ul><li><strong>Fast to run<\/strong>: It offers very high performance, on par with&nbsp;<a href=\"https:\/\/www.workfall.com\/learning\/blog\/how-to-configure-cors-in-node-js-with-express\/\"><strong>NodeJS<\/strong><\/a>&nbsp;and&nbsp;<a href=\"https:\/\/www.workfall.com\/learning\/blog\/how-to-use-go-modules-for-package-management\/\"><strong>Go<\/strong><\/a>, thanks to&nbsp;Starlette&nbsp;and&nbsp;pydantic.<\/li><li><strong>Fast to code<\/strong>: It allows for significant increases in development speed.<\/li><li><strong>Reduced number of bugs<\/strong>: It reduces the possibility for human-induced errors.<\/li><li><strong>Intuitive<\/strong>: It offers great editor support, with completion everywhere and less time debugging.<\/li><li><strong>Straightforward<\/strong>: It\u2019s designed to be uncomplicated to use and learn, so you can spend less time reading documentation.<\/li><li><strong>Short<\/strong>: It minimizes code duplication.<\/li><li><strong>Robust<\/strong>: It provides production-ready code with automatic interactive documentation.<\/li><li><strong>Standards-based<\/strong>: It\u2019s based on the open standards for APIs,&nbsp;OpenAPI&nbsp;and&nbsp;JSON Schema.<\/li><\/ul>\n\n\n\n<p class=\"has-text-align-justify\">The framework is designed to optimize your developer experience so that you can write simple code to build production-ready APIs with best practices by default.<\/p>\n\n\n\n<h2>Hands-on<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Illustrations\/3.png\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>In this hands-on, we&#8217;ll learn how to implement pagination in <a href=\"https:\/\/learning.workfall.com\/learning\/blog\/how-to-stream-json-data-using-server-sent-events-and-fastapi-in-python-over-http\/\">FastAPI<\/a> using the fastapi-pagination library.&nbsp;<\/p>\n\n\n\n<p>We&#8217;ll start by creating a new project in the PyCharm IDE and installing the necessary libraries.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Our coding journey begins with setting up FastAPI in the project. Next, we&#8217;ll create a test route to check our FastAPI setup.&nbsp;<\/p>\n\n\n\n<p>Afterward, we&#8217;ll plan the SQL schema for the data we want to paginate.&nbsp;<\/p>\n\n\n\n<p>Following that, we&#8217;ll establish a connection to our <a href=\"https:\/\/www.workfall.com\/learning\/blog\/how-to-connect-to-mysql-database-and-run-crud-operations-in-node-js\/\">MySQL<\/a> database using Python code.&nbsp;<\/p>\n\n\n\n<p>To insert dummy data into our MySQL table, we&#8217;ll use the faker library.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Then, we&#8217;ll create a route to retrieve this data, and we&#8217;ll utilize the fastapi-pagination library to incorporate pagination into this endpoint.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-justify\">We&#8217;ll explore various ways to use pagination, and finally, we&#8217;ll conduct tests to ensure our code serves its intended purpose and produces the expected output.<\/p>\n\n\n\n<h3>Required installations:<\/h3>\n\n\n\n<p>To perform the demo, you require the following installations:<\/p>\n\n\n\n<ul><li><strong>FastAPI:<\/strong> FastAPI is a modern, high-performance web framework for building APIs with Python.<\/li><li><strong>UVicorn:<\/strong> UVicorn is a fast ASGI server for running Python web applications, designed for high performance and compatibility with asynchronous code.<\/li><li><strong>fastapi-pagination:<\/strong> FastAPI-Pagination is a Python library for effortless pagination of FastAPI endpoints.<\/li><li><strong>SQLAlchemy:<\/strong> SQLAlchemy is a Python library that provides a high-level, object-oriented interface for interacting with relational databases using SQL.<\/li><li><strong>Faker:<\/strong> The Faker library is a Python tool for generating fake data, such as names, addresses, and text, often used for testing and populating databases.<\/li><\/ul>\n\n\n\n<p>Open PyCharm CE on your desktop and click on \u2018New Project\u2019.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/1.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Name your project and choose the path to save your project and then click on \u2018create\u2019.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/2.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Remove all the auto-generated code from the main.py file.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/3.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Open the PyCharm terminal and run the command as shown in the image below to install the FastAPI framework.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/4.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>On successful installation you will see the screen as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/5.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Run the command as shown in the image below to install the UVicorn server.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/6.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>On successful installation you will see the screen as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/7.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Let&#8217;s create a demonstration API route and perform testing with FastAPI.<\/p>\n\n\n\n<p>Import the FastAPI class as shown in the image provided.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/8.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Instantiate the FastAPI application using the FastAPI class as shown in the provided image.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/9.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Create a root route at &#8216;\/&#8217; that provides a placeholder message in response.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/10.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>The final code will look as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/11.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Initiate the server using the command demonstrated in the provided image.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/12.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>After running the command, the server will get started and you will see a screen as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/13.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Click on the link shown in the terminal to see the message that we returned from our code.<\/p>\n\n\n\n<p>If everything goes well, you will be able to see a message on your browser as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/14.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Let\u2019s start with the Database preparation.&nbsp;<\/p>\n\n\n\n<p>Create a table schema using the command shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/15.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Our schema will look like as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/16.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Let\u2019s connect the MySQL database to our python application.<\/p>\n\n\n\n<p>For that, first we need to install the SqlAlchemy library.&nbsp;<\/p>\n\n\n\n<p>Run the command as shown in the image below to install the library.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/17.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>On successful installation you will see the screen as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/18.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Right click on the folder structure and create a new python file.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/19.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Name the file as db_connection and save the file.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/20.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p class=\"has-text-align-justify\">Write the below provided code in the db_connection.py file and make sure to replace the username, password and databasename placeholder to its actual values.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/21.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Let\u2019s populate some fake data into our MySQL table.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">For that first we need to install the faker library, run the command shown in the image below to install the required library.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/22.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>On successful installation you will see the screen as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/23.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Right click on the folder structure and create a new python file.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/24.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Name the file as insert_fake_data and save the file.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/25.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Write the code shown in the image below in the insert_fake_data.py file.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/26.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Write the command shown in the image below to the terminal to run this file.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/27.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>You may get the below error after running the above shown command.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/28.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>To resolve the error, we will have to download the pymysql library.<\/p>\n\n\n\n<p>Run the command shown in the image below to download the same.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/29.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>On successful installation you will see the screen as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/30.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Run the insert_fake_data file again using the command provided earlier.<\/p>\n\n\n\n<p>You will get the below error.&nbsp;<\/p>\n\n\n\n<p>This error is due to the country name Cote d&#8217;Ivoire.&nbsp;<\/p>\n\n\n\n<p>As you can see this country name has a single quote so MySQL is getting confused and throwing the error.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/31.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>To resolve this error, we will make use of urllib library\u2019s quote method.<\/p>\n\n\n\n<p>Import the method as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/32.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Wrap the loc variable in the quote method to parse the string correctly and avoid the error.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/33.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>The final code in the insert_fake_data.py file will be as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/34.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Now run the file again and it should run without any problems.<\/p>\n\n\n\n<p>Check the data in the table using the below mysql query.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/35.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>After executing the query, we will get the output as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/36.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Let\u2019s write a complete end-to-end FastAPI route to get the rows from our employee table as a HTTP response.<\/p>\n\n\n\n<p>Right click on the folder structure and create a new python file.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/37.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Name the file as employee_model and save the file.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/38.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Write the provided code into the employee_model.py file.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">This code defines the structure of the employee table in SQLAlchemy, which we&#8217;ll use to interact with a MySQL database using FastAPI.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/39.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Open main.py file and modify its code to match the code shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/40.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Open your browser and hit the endpoint to see all the employee\u2019s data.<\/p>\n\n\n\n<p><a href=\"http:\/\/localhost:8000\/\">http:\/\/localhost:8000\/<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/41.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Now, let\u2019s add pagination to the endpoint.<\/p>\n\n\n\n<p>To implement pagination, we need to install fastapi-pagination library.<\/p>\n\n\n\n<p>Run the command as shown in the image below to install the library.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/42.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>On successful installation you will see the screen as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/43.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p class=\"has-text-align-justify\">We&#8217;ve successfully installed the pagination library, and now we need to create a response model called &#8220;EmployeeOut,&#8221; which will mirror the Employee model, but without any sensitive information (though we don\u2019t have any), and we&#8217;ll use it to send HTTP responses.<\/p>\n\n\n\n<p>Add the below lines of code in the main.py file.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/44.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>Modify the main.py file code to match the code shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/45.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>We use the Page and paginate methods.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-justify\">The default settings are a minimum of 50 items per page and at least 1 page, but you can change the page number and size by passing parameters to adjust the response.<\/p>\n\n\n\n<p>Let\u2019s open the browser and hit the endpoint again to see the output as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/46.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>By default, our endpoint returns a list of 50 records from a database that contains a total of 1000 records.<\/p>\n\n\n\n<p>If you want to receive only 10 records instead, you can specify this by using query parameters.<\/p>\n\n\n\n<p><strong>Pagination with custom page size parameters:<\/strong><\/p>\n\n\n\n<p>Hit the endpoint using the url shown in the image below to get only 10 records per page.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/47.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>After hitting the above endpoint, we get output as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/48.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p><strong>Pagination with Limit and Offset:<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-justify\">If you want to control how many items you see at once or split a large list into smaller parts, you can use Limit\/Offset Pagination.&nbsp;<\/p>\n\n\n\n<p>You can do this by importing LimitOffsetPage and using it to organize your data instead of the regular Page.<\/p>\n\n\n\n<p>Here&#8217;s what it does:<\/p>\n\n\n\n<p><strong>Limit: <\/strong>It helps you set a maximum number of items to show at a time. For example, you can choose to see only 10 items at once.<\/p>\n\n\n\n<p><strong>Offset: <\/strong>This lets you skip some items at the beginning of your list. For instance, if you skip the first 5 items, you&#8217;ll start viewing the list from the 6th item onwards.<\/p>\n\n\n\n<p>By combining limit and offset, you can both skip certain items and limit how many you see in one go.<\/p>\n\n\n\n<p>This is handy when you&#8217;re dealing with a lot of data and want to break it into manageable chunks.<\/p>\n\n\n\n<p>Modify the main.py file code to match the code shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/49.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<p>Let\u2019s assume we want to query rows from 10 to 15. We could use the limit and offset to do this.<\/p>\n\n\n\n<p>Hit the endpoint using the url shown in the image below to get the records from 10 to 15.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/50.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p>After hitting the above endpoint, we get output as shown in the image below.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img src=\"https:\/\/workfall-techblogs.s3.ap-southeast-1.amazonaws.com\/188\/Images\/51.jpg\" alt=\"How to Implement Pagination Using FastAPI in Python?\"\/><\/figure>\n\n\n\n<h2>Conclusion<\/h2>\n\n\n\n<p class=\"has-text-align-justify\">In this hands-on tutorial, we have successfully implemented pagination in FastAPI using the fastapi-pagination library.&nbsp;<\/p>\n\n\n\n<p>We began by creating a new project in the PyCharm IDE and installing the necessary libraries.&nbsp;<\/p>\n\n\n\n<p>Our journey started with setting up FastAPI in the project and creating a test route to verify our FastAPI setup.<\/p>\n\n\n\n<p>We then meticulously planned the SQL schema for the data we intended to paginate.&nbsp;<\/p>\n\n\n\n<p>Following that, we established a connection to our MySQL database using Python code.&nbsp;<\/p>\n\n\n\n<p>To populate our MySQL table with dummy data, we leveraged the faker library.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Afterward, we created a route to retrieve this data, and we seamlessly incorporated pagination into this endpoint using the fastapi-pagination library.<\/p>\n\n\n\n<p>Throughout the process, we explored different methods of using pagination to suit different use cases.&nbsp;<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Finally, we conducted tests to ensure that our code functions as intended and consistently produces the expected output.&nbsp;<\/p>\n\n\n\n<p>We will come up with more such use cases in our upcoming blogs.<\/p>\n\n\n\n<p><strong>Meanwhile\u2026<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-justify\">If you are an aspiring Python developer and want to explore more about the above topics, here are a few of our blogs for your reference:<\/p>\n\n\n\n<ul><li><a href=\"https:\/\/www.workfall.com\/learning\/blog\/how-to-stream-json-data-using-server-sent-events-and-fastapi-in-python-over-http\/\">How to Stream JSON Data Using Server-Sent Events and FastAPI in Python over HTTP?<\/a><\/li><li><a href=\"https:\/\/www.workfall.com\/learning\/blog\/how-to-create-an-amazon-price-tracker-service-using-python\/\">How to Create an Amazon Price Tracker Service Using Python?<\/a><\/li><li><a href=\"https:\/\/www.workfall.com\/learning\/blog\/how-to-connect-snowflake-with-python-and-execute-queries\/\">Connect Snowflake with Python and execute queries<\/a><\/li><li><a href=\"https:\/\/www.workfall.com\/learning\/blog\/how-to-easily-build-etl-pipeline-using-python-and-airflow\/\">Easily build ETL Pipeline using Python and Airflow<\/a><\/li><\/ul>\n\n\n\n<p>Stay tuned to get all the updates about our upcoming blogs on the cloud and the latest technologies.<\/p>\n\n\n\n<p><strong>Keep Exploring -&gt; Keep Learning -&gt; Keep Mastering&nbsp;<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-justify\">At <a href=\"https:\/\/www.workfall.com\/\">Workfall<\/a>, we strive to provide the best tech and pay opportunities to kickass coders around the world. If you\u2019re looking to work with global clients, build cutting-edge products, and make big bucks doing so, give it a shot at <a href=\"https:\/\/app.workfall.com\/partner\/signup\">workfall.com\/partner<\/a> today!<\/p>\n\n\n<style type=\"text\/css\">.helpie-faq.accordions.groupSettings-470__enabled .accordion .accordion__item .accordion__header{background: #ee5927 !important;}.helpie-faq.accordions.groupSettings-470__enabled .accordion .accordion__item .accordion__body{background: #000000 !important;}.helpie-faq.accordions.groupSettings-470__enabled .accordion .accordion__item .accordion__body, .helpie-faq.accordions.groupSettings-470__enabled .accordion .accordion__item .accordion__body p, .helpie-faq.accordions.groupSettings-470__enabled .accordion .accordion__item .accordion__body h1, .helpie-faq.accordions.groupSettings-470__enabled .accordion .accordion__item .accordion__body h2, .helpie-faq.accordions.groupSettings-470__enabled .accordion .accordion__item .accordion__body h3, .helpie-faq.accordions.groupSettings-470__enabled .accordion .accordion__item .accordion__body h4, .helpie-faq.accordions.groupSettings-470__enabled .accordion .accordion__item .accordion__body h5, .helpie-faq.accordions.groupSettings-470__enabled .accordion .accordion__item .accordion__body h6{color: #ffffff !important;}<\/style><section id='' \n                class='helpie-faq accordions faq-toggle open-first groupSettings-470__enabled' \n                data-collection='' \n                data-pagination='0' \n                data-search='0' \n                data-pagination-enabled='0'\n                role='region'\n                aria-label='FAQ Section'\n                aria-live='polite'><h3 class=\"collection-title\">Frequently Asked Questions:<\/h3><article class=\"accordion \"><div class='helpie-faq-row'><div class='helpie-faq-col helpie-faq-col-12' ><ul><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-2547\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-2547\"\r\n                data-id=\"post-2547\" \r\n                data-item=\"hfaq-post-2547\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">Q: How to validate page and limit query parameters in FastAPI pagination?<\/div><\/div><div id=\"accordion-content-post-2547\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-2547\"\r\n                style=\"background:transparent;\"><p><span class=\"rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\">12<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><strong>A:<\/strong> You can validate pagination parameters in FastAPI using Query with constraints: from fastapi import Query<\/p>\n<p>@app.get(&#8220;\/items&#8221;)<\/p>\n<p>def get_items(page: int = Query(1, ge=1), limit: int = Query(10, ge=1, le=100)):<\/p>\n<p>-This ensures page and limit are always positive and within a defined range.<\/p>\n<\/div><\/li><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-2561\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-2561\"\r\n                data-id=\"post-2561\" \r\n                data-item=\"hfaq-post-2561\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">Q: What is the difference between offset-based and cursor-based pagination in FastAPI?<\/div><\/div><div id=\"accordion-content-post-2561\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-2561\"\r\n                style=\"background:transparent;\"><p><span class=\"rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\">12<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><span style=\"font-weight: 400\"><strong>A:<\/strong> Offset-based pagination uses LIMIT and OFFSET, making it simple to implement but slower for large datasets.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Cursor-based pagination uses a unique key (like an ID or timestamp) to fetch the next set of results, offering better performance and stability with frequently changing data.<\/span><\/p>\n<\/div><\/li><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-2563\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-2563\"\r\n                data-id=\"post-2563\" \r\n                data-item=\"hfaq-post-2563\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">Q: How to return total count of records in a FastAPI paginated API response?<\/div><\/div><div id=\"accordion-content-post-2563\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-2563\"\r\n                style=\"background:transparent;\"><p><span class=\"rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\">12<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><strong>A:<\/strong> Run two queries: one for paginated items and one for the total record count using COUNT(*). Example JSON response:<br \/>\n{<br \/>\n&#8220;total&#8221;: 250,<br \/>\n&#8220;page&#8221;: 2,<br \/>\n&#8220;limit&#8221;: 10,<br \/>\n&#8220;items&#8221;: [&#8230;]<br \/>\n}<br \/>\nThis lets clients know how many total pages are available.<\/p>\n<\/div><\/li><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-2565\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-2565\"\r\n                data-id=\"post-2565\" \r\n                data-item=\"hfaq-post-2565\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">Q: How to test FastAPI pagination endpoints using Swagger UI and Pytest?<\/div><\/div><div id=\"accordion-content-post-2565\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-2565\"\r\n                style=\"background:transparent;\"><p><span class=\"rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\">12<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><strong>A:<\/strong> Use FastAPI\u2019s built-in Swagger UI (\/docs) to test pagination manually.<br \/>\nFor automated testing, use pytest with TestClient to simulate requests and validate response structure.<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/article><\/section>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\">12<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span> Navigating lots of info can be tricky. Let\u2019s find out how FastAPI makes it easy with pagination, breaking down content for a smoother ride.&nbsp; We will do a step-by-step implementation with FastAPI, a top-notch Python tool, which helps organize info better.&nbsp; Improve reading, speed, and user happiness using pagination tricks.&nbsp; Let\u2019s get started! In this [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2488,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[288],"tags":[372,459,468,114,6],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Implement Pagination Using FastAPI in Python? - The Workfall Blog<\/title>\n<meta name=\"description\" content=\"Navigating lots of info can be tricky. 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