Mastering Dio Package for HTTP Network API Calls in Flutter

Master advanced Flutter networking with Dio, empowering you to build robust and efficient mobile applications. First, you’ll understand what an API is and explore the fundamentals of Dio, understanding its pivotal role in simplifying HTTP requests for Flutter development. Next, we'll delve into asynchronous programming concepts, using Dio for non-blocking API calls and effective Futures management. Furthermore, you'll learn to seamlessly integrate Dio with RESTful APIs, covering common HTTP methods such as GET, POST, PUT, and DELETE. Next, we will master the art of handling exceptions and interpreting status codes for resilient app behavior. After that you will learn to customize Dio's behavior using interceptors, and implement global configurations for consistency and efficiency. Moving on, we'll explore how to integrate Bearer Authentication and Basic Authentication with Dio and make authenticated requests to access private routes with the help of a token. Continuing the journey, you'll discover Dio's capabilities in handling file uploads and downloads, along with strategies for optimizing network performance through request cancellation and timeout handling. Lastly, we'll also implement the concept of caching for network requests, tying everything together in a final project that synthesizes your newfound skills. As you conclude the course, you'll emerge with the confidence to architect Flutter applications seamlessly, optimizing networking processes for an efficient user experience.

Course Objectives

In this master codelab, you’ll explore:

  • Understand the fundamentals of Dio library, its role in Flutter, and how it simplifies HTTP requests in mobile app development. 
  • Learn to integrate Dio with RESTful APIs, covering common HTTP methods and handling various types of API responses.
  • Uncover the art of JSON data parsing, creating model classes to structure information, and managing data. 
  • Master the art of handling exceptions and interpreting status codes in Dio for robust and resilient app behavior. 
  • Utilize Dio Interceptors to customize both requests and responses effectively. 
  • Implement Bearer and Basic Authentication mechanisms for secure access to private routes.
  • Illustrate the process of checking and maintaining the authentication state on app launch using Shared Preferences.
  • Explore Dio's capabilities in handling file uploads and downloads. 
  • Master the art of implementing robust and persistent caching with Dio Cache Interceptor and Hive Store, optimizing network requests to enhance application performance and reducing network usage.
  • Discuss tips and strategies for optimizing network performance with Dio.

Meet the instructor

Rahul Agarwal 

Content Author & Course Instructor

More courses by the instructor

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