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gRPC over WebRTC DataChannels

Guided first run: generate a gRPC client and call it in the browser

grpc-over-datachannels v0.36.0 — gRPC clients and servers that run in the browser over native WebRTC DataChannels, and natively in 16 languages, from the same .proto schemas. No grpc-web proxy and no external gRPC runtime: every runtime is generated and dependency-free.

In-browser protoc generator + live demo — paste a .proto, get stubs for every language
JavaScript/TypeScript browser client example
Go generated client · Python generated messages · A larger schema (shop) in JavaScript
Echo server in every language (Markdown)
Behavior specification (BDD)
Source, runtimes and examples on GitHub
Project blog — launch notes, design posts, and release write-ups

Why DataChannels?

WebRTC DataChannels give browsers an encrypted, ordered or lossy/unordered, bidirectional message pipe to any peer — including native processes. This project speaks the gRPC wire protocol directly over that pipe (HTTP/2 framing replaced by DataChannel messages), so a browser tab can call a Rust, Go, Python or Node service peer-to-peer, behind NATs via ICE/STUN/TURN, without a translating proxy.