Nearly everything that is visible in a user’s browser is transmitted over HTTP, so these network requests play an important role in internet communication.
A key component of an HTTP request is the header.
HTTP request headers are used to provide additional information about the request.
For example, details about the requested information, the sender, and how the sender wishes to connect with the recipient.
Axios is a flexible and robust solution for making HTTP requests and for intercepting HTTP responses from both Node.js applications and the browser.
But, Axios also does much more.
In this article, we’ll explore different ways that Axios can be used to set request headers for API calls.
For the examples used in this article, we’ll install Axios from a CDN.
It may also be installed with npm, Yarn, or Bower.
Here’s the script or command for each method:.
- Let’s explore the different ways we can use Axios to set request headers for API calls:.
- Axios methods such as post() and get() enable us to attach headers to requests by supplying a headers’ object as the second parameter for a GET request and the third argument for a POST request.
- Let’s take a look at how this works for both individual and multiple requests:.
- The POST and GET requests are used to create or retrieve a resource, respectively.
- Here are some examples for one-time or individual requests.
- First, we declare the config object, containing the headers object, which will be supplied as an argument when making requests.
- We also declare an api endpoint and a data object:. We can use a GET request to retrieve the config object from the API endpoint url:.
- In this example, we pass in the API endpoint url as the first argument and the config object as the second argument.
In this example, we pass in the API endpoint url as the first argument, a data object as the second argument, and the config object as the third argument.