Fetching Data with Axios and the useEffect Hook
Explore how to fetch data from a MongoDB-backed API using Axios and React's useEffect hook. Understand the fetch-store-render cycle, setting up a shared Axios instance, and managing component state to display data efficiently on mount. This lesson lays the foundation for integrating backend data within a React frontend.
We'll cover the following...
The previous lesson mapped the full request flow. This lesson writes the first piece of it on the frontend: getting data out of the backend and onto the screen. It uses the same /products route built in the CRUD chapter, so this is where all that backend work finally appears in a UI. The pattern, fetch on mount, store in state, render, is the foundation every React data screen is built on.
Note: This React and Axios code is for read-along context. It calls the Express routes from the CRUD chapter; the database work behind those routes was completed earlier.
To make the pattern concrete, the next visual should show the fetch-store-render cycle when a component mounts.
That starts with the tool that makes the request.
Setting up a shared Axios instance
Axios is an HTTP client for the browser. Rather than configuring it in ...