This repo demonstrates how you can connect two WebRTC proccesses without signaling. No configuration is needed ahead of time, so no hardcoding of IP Addresses. The peers use mDNS to connect to each other, and have pre-set ICE Credentials and DTLS Certificates.
git clone https://github.com/pion/offline-browser-communication.git
cd offline-browser-communication
go run *.go
- Open https://jsfiddle.net/nah7qvkj/
You should see the following in your terminal.
Ready to connect, please load https://jsfiddle.net/nah7qvkj/
Connection State has changed checking
Connection State has changed connected
DataChannel foo has opened
If everything worked you can now send messages from your browser to your terminal!
This means you can have two devices connect without any setup. No need to setup a server, or native apps with more control.
You could build stuff like.
- Sync data between two PWA without a backend
- Have a multiplayer game that never leaves your network
- Build a conferencing/chat app that doesn't require any setup
- Please share your cool ideas with us!
No currently everything is hardcoded, this is just a demonstration. I believe this could be reasonably secure if seeded properly. Better to ask a security person though.
OSX and Linux
Only Chromium so far. If there is interest I would like to support more
Only Pion WebRTC it is a full Go implementation of WebRTC. It has zero C/C++ usage.
I would like to get this into the IETF/W3C, but as an individual I am unable to be involved. If you are interested and have membership please reach out!
Join the Pion Slack
If you see an error like InvalidAccessError: x509Cert expired
the certificate has expired. You can update it by following these instructions. Please submit a PR
with the updated certificate as well, thanks!
// Create new certificate
go run `go env GOROOT`/src/crypto/tls/generate_cert.go --host=localhost --ecdsa-curve=P256
// Create new fingerprint for jsfiddle
openssl x509 -noout -fingerprint -sha256 -inform pem -in cert.pem
Pion has an active community on the Golang Slack. Sign up and join the #pion channel for discussions and support. You can also use Pion mailing list.
We are always looking to support your projects. Please reach out if you have something to build!
If you need commercial support or don't want to use public methods you can contact us at [email protected]
MIT License - see LICENSE for full text