A Comprehensive Guide to Flutter-WebRTC

This article provides a detailed guide on how to implement real-time audio and video communication in a Flutter app using WebRTC. It begins by explaining what WebRTC is and its significance in modern app development, especially post-pandemic when online interactions have become more prevalent. The tutorial then proceeds to demonstrate the process of integrating WebRTC with a Flutter app, covering topics such as adding necessary permissions for camera and microphone access on iOS and Android devices, configuring build settings, and rendering local user's video in the app. It also delves into how WebRTC works, discussing concepts like NAT (Network Address Translation), Interactive Connectivity Establishment (ICE), STUN (Session Traversal Utilities for NAT), and TURN (Traversal Using Relays around NAT). The tutorial concludes by illustrating how to connect with a remote user and establish a P2P connection using WebRTC. Additionally, the article mentions the benefits of using a Signaling Server like 100ms to help coordinate communication between parties in a WebRTC app.