Enhance Your React Native App with Axios Interceptors

Sugand singh
2 min readMay 15, 2024

In the world of React Native development, managing network requests efficiently is crucial for delivering a smooth and responsive user experience. Axios, a popular HTTP client library, simplifies the process of making HTTP requests in JavaScript applications. But did you know that Axios interceptors can take your network request handling to the next level?

What are axios interceptors?

Axios interceptors allow you to intercept requests or responses before they are handled byaxios. This powerful feature enables you to globally handle common tasks such as adding headers, logging, authentication, or error handling without repeating code in every API call throughout your application.

Implementing Axios Interceptors in React Native

Let’s dive into how you can implement Axios interceptors in your React Native application:

1. Setting Up Axios

First, install Axios in your React Native project.

npm install axios

Or if you’re using yarn:

yarn add axios

2. Creating Interceptors

Once Axios is installed, you can create interceptors for handling requests and responses. For example, to add a common authorization header to every outgoing request, you can define a request interceptor like this:

import axios from 'axios';

// Add a request interceptor
axios.interceptors.request.use(
(config) => {
// Modify config
config.headers.Authorization = `Bearer ${yourAuthToken}`;
return config;
},
(error) => {
// Handle error
return Promise.reject(error);
}
);

Similarly, you can define a response interceptor to handle common tasks such as logging responses or globally handling errors:

// Add a response interceptor
axios.interceptors.response.use(
(response) => {
// Log response data
console.log(response.data);
return response;
},
(error) => {
// Handle error
return Promise.reject(error);
}
);

3. Cleaning Up

Remember to clean up your interceptors when they are no longer needed, especially if you’re using them in a component that may be unmounted:

// Clean up interceptors
axios.interceptors.request.eject(interceptorId);
axios.interceptors.response.eject(interceptorId);

Benefits of Using Axios Interceptors

Implementing Axios interceptors in your React Native app offers several benefits:

  1. Code Consistency: Interceptors help maintain consistency in your codebase by centralizing common request and response handling logic.
  2. Error Handling: You can easily implement global error handling for network requests, making it easier to manage errors and provide appropriate feedback to users.
  3. Authorization: Interceptors simplify the process of adding authorization headers to outgoing requests, enhancing the security of your application.
  4. Logging and Debugging: With interceptors, you can log request and response data for debugging purposes, helping you identify and fix issues more efficiently.

Conclusion

Axios interceptors are a powerful tool for enhancing network request handling in your React Native application. By centralizing common tasks such as authorization, error handling, and logging, interceptors can help you write cleaner, more maintainable code. Incorporate Axios interceptors into your project today and streamline your network request workflow. Happy coding!

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Sugand singh

Experienced React Native dev, UI/UX expert, performance optimizer. Keeping up with mobile trends. Let's build mobile magic!