Attributes
Includes Deno configuration
Repository
Current version released
2 years ago
FTL
FTL (Faster Than Light) is a non standard WebRTC implementation for Deno.
DISCLAMER
Please note that this being Non standard means that using it will have drawbacks to normal WebRTC. it is made for fast communication and mostly testing purposes.
As of today there hasn’t been any working WebRTC library for Deno, this is a first attempt at making one that is fast unreliable and usable.
Usage:
import { RTCServer } from "https://deno.land/x/ftl/mod.ts"
const ip = Deno.networkInterfaces().find(iface => (iface.name === "eth0" || iface.name === "Ethernet" || iface.name === "en0") && iface.family === "IPv4")?.address;
//Starting the server
const ftl = await RTCServer({
host: "0.0.0.0",
port: 9595,
public: ip ?? "127.0.0.1",
} as any, true);
//You can use any way you want to start a session,
//it can be a simple http server or a websocket server.
//On the client side you can start a WebRTC connection using the following code:
// let peer = new RTCPeerConnection({
// iceCandidatePoolSize: 16,
// bundlePolicy : "balanced"
// });
//
// let channel = peer.createDataChannel("data", {
// ordered: false,
// maxPacketLifeTime: 0,
// maxRetransmits: 0,
// });
// .. The rest is standard datachannel processing, see /examples for more info.
//Thie method will save a new Session Descriptor for any incoming webrtc connection. the argument is a string.
const answer = ftl.session("...")
///answer = { type: "answer"; sdp: string }
//you can then send this pack to the browser and add it to the remote SessionDescription. (see )
// Listening for the different event
ftl.on("event", (evt) => {});
ftl.on("message", (data, addr) => {});
ftl.on("error", (closeEvent) => {});
//
// Send exemple
// Please use an existing client addr, the object is a Deno.NetAddr.
ftl.send("hello world", { hostname: "0.0.0.0", port: 12345, transport: "udp"}) //
Quick FAQ (Frequently Asked Questions):
“Unreliable?” : Yes, it uses the standard RTCP option
unreliable
in order to send messages that are not fragmented, each packet has a maximum ammount of 1256 bytes (could go higher but optimal), and packet that gets dropped are not sent again, thus the tag unreliable.“Non standard?”: This library does not include 90% of the WebRTC api, only the bare mimimum, “DataChannel”. This is because re-implementing it is a big nono.