hawkband-wled-client/app/api/power/[id]/route.js

import { isEmpty, pick } from "lodash";
import { NextResponse } from "next/server";
import { WLEDClient } from "wled-client";

import config from "data/config.json";

const action = async ({ client, on }) => {
  let wled;
  let errors = [];
  try {
    console.log("connect to", client);
    wled = new WLEDClient(client); // setup a connection to the client
    await wled.init(); // init the connection
  } catch (err) {
    errors.push({ error: err.message, type: "connect", client });
  }
  try {
    console.log("set power to", on);
    if (on) await wled.turnOn(); // turn off the lights
    else await wled.turnOff(); // turn off the lights
  } catch (err) {
    errors.push({ error: err.message, type: "power", client, on });
  }
  try {
    await wled.refreshState();
  } catch (err) {
    console.log("state refresh", err.message);
    errors.push({ error: err.message, type: "refreshState", client });
  }
  return { ...pick(wled?.state || {}, ["on"]), errors };
};

export async function GET(req, { params }) {
  let id = params?.id;
  let promises = [];
  try {
    if (!id) throw new Error("Invalid power state");
    let clients = (config && Object.keys(config)) || [];
    if (isEmpty(clients)) throw new Error("No clients found");
    for (let client of clients) {
      promises.push(action({ client, on: id === "on" || false }));
    }
  } catch (err) {
    return NextResponse.json({ error: err?.message }, { status: 500 });
  }
  return Promise.allSettled(promises)
    .then((results) => {
      console.log("results", results);
      return NextResponse.json(results?.map((o) => o?.value));
    })
    .catch((err) => {
      return NextResponse.json({ error: err?.message }, { status: 500 });
    });
}