How to Create an Asynchronous API with FastAPI and Job Concept Introduction In this post, we will learn how to create an asynchronous API with FastAPI, a modern, fast, and high-performance web framework for building APIs with Python. We will use the concept of job to handle long-running or CPU-intensive tasks in the background, without blocking the main thread or the request-response cycle. Why Asynchronous APIs? Asynchronous APIs are APIs that do not provide data immediately, but rather at a later time. This can be useful for situations where the data is not available instantly, or where the processing of the data takes a long time. For example, if you want to send an email, generate a report, or perform some complex calculations, you might not want to wait for the result before moving on to the next task. Instead, you can use an asynchronous API to start the task in the background, and then check the status or the result later. Asynchronous APIs can also improve the performance and ...