Send Request Query Parameters with Axios

Send Request Query Parameters with Axios

Introduction

Axios is a popular JavaScript library that is used for making HTTP requests from the browser. It allows you to send HTTP requests to a server and receive responses, making it an essential tool for building modern web applications.

One common use for Axios is to make GET requests to retrieve data from a server. In these requests, you can include query parameters to specify additional information about the data you want to retrieve. In this article, we will explain how to include query parameters in GET requests made with Axios.

What are Query Parameters?

Before we dive into how to include query parameters in GET requests with Axios, it's useful to understand what query parameters are and why they are useful.

Query parameters are additional pieces of information that are appended to the end of the URL in an HTTP request. They are typically used to specify details about the data you want to retrieve, such as the search criteria for a query or the page number of a paginated result set.

For example, consider the following URL:

https://www.example.com/search?q=axios&page=2

In this URL, q and page are query parameters. The q parameter specifies the search term (in this case, axios), and the page parameter specifies the page number of the search results to retrieve (in this case, 2).

Query parameters are useful because they allow you to send additional information to the server without having to use a different HTTP method (such as POST) or include the information in the request body. This can make it easier to build and use web APIs, as the server can use the query parameters to tailor the response to the specific needs of the client.

Using Query Parameters with Axios

Now that you understand what query parameters are and why they are useful, let's take a look at how to include them in GET requests made with Axios.

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To include query parameters in a GET request with Axios, you need to specify them as an object in the params property of the configuration object passed to the axios.get() method:

axios.get('https://www.example.com/search', {
  params: {
    q: 'axios',
    page: 2
  }
})
  .then(response => {
    // handle success
  })
  .catch(error => {
    // handle error
  });

In this code, we are making a GET request to the https://www.example.com/search URL, and we are including two query parameters: q and page. The q parameter specifies the search term, and the page parameter specifies the page number of the search results to retrieve.

When the request is sent, Axios will automatically append the query parameters to the end of the URL, so the full URL that is sent to the server will be:

https://www.example.com/search?q=axios&page=2

The server can then use the query parameters to tailor the response to the specific needs of the client.

Conclusion

In this article, we have explained how to include query parameters in GET requests made with Axios. Query parameters are additional pieces of information that are appended to the end of the URL in an HTTP request, and they are useful for specifying details about the data you want to retrieve.

Last Updated: December 13th, 2022
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