frida-node/examples/interactive.ts

import frida from "frida";

const source = `
recv(onMessage);

function onMessage(message) {
  send({ name: 'pong', payload: message });

  recv(onMessage);
}
`;

async function spawnExample() {
    const pid = await frida.spawn(["/bin/cat", "/etc/resolv.conf"]);

    console.log(`[*] Spawned pid=${pid}`);

    // This is where you could attach (see below) and instrument APIs before you call resume()
    await frida.resume(pid);
    console.log("[*] Resumed");
}

async function attachExample() {
    const session = await frida.attach("cat");
    console.log("[*] Attached:", session);
    session.detached.connect(onDetached);

    const script = await session.createScript(source);
    console.log("[*] Script created");
    script.message.connect(message => {
        console.log("[*] Message:", message);
    });
    await script.load();
    console.log("[*] Script loaded");

    process.on("SIGTERM", stop);
    process.on("SIGINT", stop);

    const timer = setInterval(() => {
        script.post({ name: "ping" });
    }, 1000);

    function stop() {
        clearInterval(timer);
        script.unload();
    }

    function onDetached(reason: frida.SessionDetachReason) {
        console.log(`[*] onDetached(reason=${reason})`);
        clearInterval(timer);
    }
}

async function usbExample() {
    const device = await frida.getUsbDevice({ timeout: null });
    console.log("[*] USB device:", device);

    // Now call spawn(), attach(), etc. on `device` just like the above calls on `frida`
}

attachExample()
    .catch(e => {
        console.error(e);
    });