Table of contents
Fetching data from APIs is a common task in web development, especially in modern web applications where data-driven content is prevalent. The process involves retrieving information from a server, typically in JSON format, and using data to update the content of the web page dynamically. You can fetch data using ‘fetch’ and ‘Axios’
Using ‘fetch’
‘Fetch’ is a built-in javascript function that allows you to make HTTP requests to servers and handle responses asynchronously. It returns a ‘promise’ that resolves to the response object from which you can extract data
Key points
The ‘fetch’ function sends an HTTP request to the specified URL.
The ‘then’ method is used to handle the response asynchronously .it takes a call-back function that processes the response.
Within the callback function ‘response.json()’ is used to extract the JSON data from the response.
Another ‘then’ method is used to handle the extracted JSON data.
The ‘catch’ method is used to handle any errors that occur during the fetch operation.
Using ‘Axios’
‘Axios’ is a popular JavaScript library for making HTTP requests in both the browser and Node.js environments. It provides a simple and intuitive API for handling HTTP requests and responses
Key points
The ‘axios.get’ method sends an HTTP GET request to the specified URL
The ‘then’ method is used to handle the response asynchronously.It takes a callback function that processes the response.
Within the callback function ‘response.data; is used to access the data returned by the server.
The ‘catch’ method is used to handle any errors that occure during the request.
Summary
Both ‘fetch’ and ‘axios’ are powerful tools for fetching data from APIs in JavaScript.They allow you to make HTTP requests,handle responses and process data asynchronously,enabling you to create dynamic and data driven web applications