vue sets request header referer

Vue is a popular JavaScript framework that allows developers to build interactive user interfaces and single-page applications. In Vue, setting the HTTP request header referer is very important, especially when security is required. This article will introduce how to use Vue to set the request header referer to ensure the security of the application.

The HTTP request header contains some metadata, which allows the server to understand the type of resource requested by the client, the request method, and the source of the request. Referer is one of the metadata, which records the source address of the HTTP request, that is, it tells the server which website or page link points to the current request.

In many cases, it is very important to let the server know the source address of the request. For example, when a user logs into a website, the server needs to know which page the request came from to ensure that the username and password entered by the user are from the correct website.

Here are the steps on how to set the referer request header in a Vue application:

1. Install Axios

Axios is a Promise-based HTTP library. Used to send HTTP requests and process HTTP responses. It is one of the most popular HTTP libraries for Vue, and it supports setting HTTP request headers.

To use Axios, we need to install it in our Vue application. We can use npm to install Axios as follows:

npm install axios --save

2. Import Axios in the Vue component

To use Axios in the Vue component, you can use the import command to import it Import into the component. For example:

import axios from 'axios'

This will pull in Axios and store it in a variable so we can use it in our component.

3. Set the referer request header in Axios

To set the referer request header, we can use the interceptors attribute of Axios to intercept HTTP requests. interceptors is an interceptor object that has two methods, one for intercepting requests and the other for intercepting responses. We need to set the referer request header in the request interceptor.

The following is the code for how to set the referer request header:

axios.interceptors.request.use(config => {
  config.headers.referer = 'http://example.com'
  return config
})

In the above code, we use the request.use method to intercept all HTTP requests and process them by passing a callback function ask. In the callback function, we set the config.headers.referer property value to 'http://example.com'. This will set the referer request header to 'http://example.com'.

Note that the above code is just an example. In practical applications, we should use the real website address to set the referer request header.

4. Send an HTTP request and check the referer request header

Now that we have set the referer request header in Axios, we can send an HTTP request in the Vue application, and Check whether the referer request header is set.

The following is the sample code:

axios.get('http://example.com/api/data')
  .then(response => {
    console.log(response.data)
  })
  .catch(error => {
    console.error(error)
  })

In the above code, we use Axios to send a GET request to the http://example.com/api/data address and log it in the console response data. If Axios successfully sends the HTTP request and gets a response, we can check the referer request header in the response headers. If the referer request header is set correctly, we can see the response header information in the console.

Summary

Setting the referer request header in a Vue application is very important because it can protect our application from some common attacks, such as CSRF attacks. Axios is a popular HTTP library that allows us to set the referer request header to intercept HTTP requests by using the Axios interceptor. To set the referer request header, we need to add the request header to the config.headers.referer property and use the real website address instead of 'http://example.com' in the example. Finally, we need to send an HTTP request and check if the referer request header is set correctly.

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