Using WebRTC + React Native For Developing Real-Time Communication Apps For Mobile Devices

WebRTC is a real-time communication technology that enables peer-to-peer communication over the web without the need for plugins or downloads. With the increasing demand for real-time communication in mobile applications, the development of WebRTC-based mobile applications using React Native has become an attractive solution for developers.

In this blog, we will discuss the steps involved in developing a WebRTC-based mobile application using React Native:

  1. Set up React Native environment: To get started, you will need to set up a React Native development environment. This includes installing Node.js, the React Native CLI, and Android Studio or Xcode, depending on the platform you are targeting
  2. Choose a WebRTC library: There are several libraries available for WebRTC development in React Native, including react-native-webrtc and react-native-peerjs. Choose the library that best fits your needs and install it in your React Native project
  3. Implement WebRTC signalling: WebRTC communication requires a signalling process to establish a connection between the two peers. This process involves exchanging information, such as IP addresses and port numbers, to allow the peers to connect directly with each other. You can implement signalling using a signalling server or use a third-party service like Ably
  4. Build the UI: The next step is to build the UI for your application. This involves creating screens for video calls, audio calls, and text messaging. You can use the React Native components to build the UI and style it as per your requirements
  5. Implement the WebRTC API: Once the UI is in place, you can implement the WebRTC API to establish a connection between the two peers. You can use the library you chose in step 2 to implement the API. The library will provide you with the necessary methods and components to initiate, manage, and terminate WebRTC connections
  6. Test the application: After implementing the WebRTC API, it is important to thoroughly test the application on both platforms to ensure that it works as expected. You can use tools like Jest and Enzyme for testing and debugging
  7. Deploy the application: Once the application is tested and debugged, you can deploy it to the app stores for public use.


While WebRTC technology provides many benefits for real-time communication in mobile applications, there are also several challenges to consider when developing WebRTC-based mobile applications using React Native. Some of these challenges include:

  1. Complex Signalling: WebRTC communication requires a signalling process to establish a connection between peers. This process can be complex and time-consuming, especially for developers who are new to WebRTC technology
  2. Cross-Platform Compatibility: WebRTC is supported by different browsers and platforms, and compatibility issues can arise when developing cross-platform applications. React Native provides a solution for this by allowing developers to write code once and run it on multiple platforms, but developers still need to consider the compatibility of WebRTC libraries and APIs across platforms
  3. Network Limitations: WebRTC communication relies on a stable network connection. In mobile applications, network limitations such as low bandwidth or high latency can affect the quality of WebRTC connections, and developers need to consider these limitations when designing their applications
  4. Security Concerns: WebRTC communication involves exchanging sensitive information, such as IP addresses and media streams. Developers need to consider the security of these exchanges and implement proper encryption and authentication to protect the privacy and security of their users
  5. Debugging and Testing: Debugging and testing WebRTC-based mobile applications can be challenging, especially when dealing with complex signalling processes and real-time communication. Developers need to use tools and techniques that are designed for WebRTC debugging and testing to ensure that their applications work as expected.

Developing a WebRTC-based mobile application using React Native might not sound like a straightforward process, but with the availability of right tools, libraries and third-party services it should not be very complex. With the rise of real-time communication, this is an opportunity for developers to create innovative and useful applications for the market.