The router in Vue is not defined

I recently implemented an axios interceptor in my App.vue file to handle all status 401 errors, allowing me to log out users. However, when trying to redirect to the login page, I keep encountering an error message saying "Cannot read property '$router' of undefined". I am unsure of what is causing this issue. Can anyone offer assistance? Additionally, I am curious if there is a more effective method for globally handling axios HTTP status errors, instead of having to check for statuses like 400 or 401 in each component that makes an HTTP request.

created: function () {
  axios.interceptors.response.use(undefined, function (err) {
    return new Promise(function (resolve, reject) {

      if (err.response.status === 401 ) {

        this.$router.push({ name: 'loginview' })

    }
      throw err;
   });
  });
}

Answer №1

One major issue is that when this is used inside internal functions, it does not reference the component instance. To resolve this problem, it is recommended to utilize arrow functions instead.

In the code snippet provided below, I have eliminated the use of new Promise as it seems unnecessary.

created: function () {
  // Using an arrow function preserves the value of 'this'
  axios.interceptors.response.use(undefined, err => {
    if (err.response.status === 401 ) {
      this.$router.push({ name: 'loginview' })
    }

    // It may be advisable not to return this in the case of a 401 error
    return Promise.reject(err)
  });
}

Answer №2

Here is an example of how you can achieve this:

initialize: function () {
  var routing=this.$routing;
  axios.interceptors.response.use(undefined, function (error) {
    return new Promise(function (resolve, reject) {

      if (error.response.status=== 401 ) {

        routing.navigate({ page: 'login' })

    }
      throw error;
   });
  });
}

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

What is the best approach to streamline and optimize this JavaScript logic code for greater efficiency?

Working on a project, I find myself dealing with 21 buttons that can be in either an active or inactive state. The state of certain buttons is influenced by the press of other buttons as well as their own activation. To handle this in my HTML, I utilize ng ...

Having trouble displaying the time in the middle square when pressing TouchableOpacity in React Native?

Having trouble pressing the TouchableOpacity button as it's not responding, and even after pressing it, I need to access the time picker to select a specific time to display inside the square view in the center. Any suggestions on how to resolve this ...

Moment.js generated an error due to an unhandled promise rejection warning

I'm trying to determine if my current timestamp is equal or greater than a certain value, but I keep encountering errors. Here's my code with the error: {...} exports.validaforgotpass = async (req, res) => { {...} const results = aw ...

Unable to alter the state of the object

Can anyone assist me in resolving an issue? I have tried numerous solutions, but none seem to work. Status Update class App extends Component { constructor(props) { super(props); this.state = { countId:{quantityId:[]}, }} The CountId ...

What is the best way to generate a search link after a user has chosen their search criteria on a webpage?

In my search.html file, I have set up a form where users can input their search criteria and click the search button to find information within a database of 1000 records. The HTML part is complete, but I am unsure how to create the action link for the for ...

Problem with React Native Camera: Camera display is not functioning correctly - React-Native-Vision-Camera Error

Hey there! I could really use some help with a tricky situation I'm facing in my React Native app, specifically regarding camera integration. Here's the scoop: The Issue: I'm working on a video recording application using React Native that ...

The Importance of Including an ID in JSF

Is the form not appearing in the HTML code on purpose? I'm curious as to why the form has an ID that matches a function. Can you explain its purpose? ...

Retrieve information from a MySQL database and integrate it into a different application

This php script is used to generate a table with a "book" button next to each row. The goal is to extract the values of "phase" and "site" from the specific row where the "book" button is clicked, and transfer them to another form (in "restricted.php") fo ...

Trouble connecting: MongoDB Node.js client hangs during connection attempt

The node-mongodb-native for node.js seems to be causing a hang when using MongoClient.connect(...), while the mongodb-client (shell command line) works fine in the terminal. Any ideas on what might be causing this issue? var MongoClient = require('mo ...

Tips for showcasing real-time updates to DynamoDB data within a Vue application?

I'm currently working on a Vue app that pulls data from DynamoDB. However, the information in the DynamoDB table is constantly being updated, and it's important for the end user to see these changes in real-time. What would be the most effective ...

Ways to recycle the table feature in angular2?

I am new to Angular2 framework and I am looking to efficiently reuse a single table component across my entire application. However, I am encountering challenges when it comes to displaying arrays in the table rows. How can I iterate through any type of ar ...

JavaScript label value vanishing after postback

When using a datepicker in JavaScript, I encountered an issue where the label resets to the default value after a postback to the server, instead of retaining the user's selected values. Despite my attempts to rearrange the code, the label consistent ...

ForEach fails to refresh the primary array

I am currently working on extending the values of each item in an array. My array consists of objects with x, y, and z fields. I aim to append more items to each object within the array using information obtained from a http.get call's response. The ...

Expanding the width of Material UI Javascript Dialog Box

Currently, I am utilizing the dialog feature from Material UI in my React JS project and I am looking to expand its width. After some research, I discovered that there is a property called maxWidth which allows you to adjust the width of the dialog. Howe ...

Is there a more efficient method to achieve the desired effect without making multiple calls to jQuery ajaxSuccess?

Currently, I am working on creating an effect that involves a quick fade-out followed by a fade-in of the element once the request is successful. Since jQuery processes elements in a routine manner (top to bottom), I have managed to achieve my desired eff ...

Having Trouble with Sending Emails Using Google Scripts - Javascript POST Request Issue

I have been working on setting up a basic form on my website where users can input their name, email, and a short message. This information is then sent to Google Apps Script which forwards the message to me via email. Unfortunately, I keep encountering an ...

The function returning the map finished before the foreach loop

I recently created a program that computes totals by multiplying a given rate with some hours. However, I've encountered an issue with the getTasks() function always returning an empty map. Even though the fields entered in the map are not empty, the ...

Best practices for establishing a conditional statement with JQuery's inArray function

I am working on a code snippet to generate a list of unique random numbers. Each generated number is supposed to be added to an array after checking that it doesn't already exist in the array. However, I seem to be facing some challenges with getting ...

Tips for showcasing content by hovering over buttons with the help of Bootstrap3 and Jquery

My code and fiddle are currently set up to display buttons when hovered over, but I want to modify it so that only the relevant button is displayed when a specific text is hovered over. For example, if "Water" is hovered over, only the button for Water sho ...

React - tips for incorporating page-wide manipulation features

I am looking to incorporate a site-wide dictionary feature that displays a definition in a small box when a word is hovered over. This would need to appear on every page of the site. One approach is to wrap all text on the site with a component that can a ...