Simple Firebase and cli integration

index.js

// Lembre de rodar: npm i firebase
const firebase = require("firebase");
const exec = require("child_process").exec;

var config = {
  // Sua configuração do firebase
};

const firebaseApp = firebase.initializeApp(config);
const ref = firebaseApp.database().ref();

firebaseApp.auth().onAuthStateChanged(user => {
  console.log("Firebase inicializado!");

  // Lembre de permitir leitura nas regras
  ref.on("value", snap => {
    const command = "echo " + snap.val();

    // Roda comando no terminal
    exec(command, (_err, stdout, stderr) => {
      console("Done!");
    });
  });
});