rcl-web

TypeScript client for ROS 2 in the browser. Connect to an rclwebd gateway, then use Node like rclcpp.

import { init, Node, std_msgs } from "rcl-web";

await init("ws://127.0.0.1:8794/ws");
const node = new Node("listener");

node.createSubscription(std_msgs.msg.String, "chatter", 10, (msg) => {
  console.log(msg.data);
});

npm install rcl-web

Your own ROS interfaces (a package with msg/ / srv/ / action/):

npx rcl-web gen --package ./my_interfaces --out src/generated/my_interfaces.ts

import { my_interfaces } from "./generated/my_interfaces.ts";
const msg = new my_interfaces.msg.Status();

How to. Topic codecs still cover only the types this package ships.

• How to: node, topics, services, actions
• API reference

Do not import rcl-web/internal from application code.