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5b380d4694
RED.httpNode.post registers a raw express route with no body parser, so req.body was undefined and trigger payloads showed all fields null. Add a zero-dep readJsonBody helper that streams + parses req body.
73 lines
2.5 KiB
JavaScript
73 lines
2.5 KiB
JavaScript
/**
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* bf-trigger-status — fires on kiosk heartbeat telemetry.
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*
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* Topic filter: `kiosk.status`. Server's nodered-bridge POSTs to
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* `${noderedUrl}/in/kiosk.status` directly. This node self-registers its
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* own POST handler — no upstream `http in` node required.
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*
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* Optional config:
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* - kiosk_id: only fire for that kiosk id
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*
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* Output msg.payload:
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* { kiosk_id, kiosk_name, cpu_temp_c, fan_rpm, fan_pwm }
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*/
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const { readJsonBody } = require("./_http-body.js");
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module.exports = function (RED) {
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const TOPIC = "kiosk.status";
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const ROUTE = "/api/internal/" + TOPIC;
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function BfTriggerStatusNode(config) {
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RED.nodes.createNode(this, config);
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const node = this;
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const filterIdRaw = (config.kiosk_id || "").toString().trim();
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const filterId = filterIdRaw && !isNaN(Number(filterIdRaw)) ? Number(filterIdRaw) : null;
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async function handler(req, res) {
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const body = await readJsonBody(req);
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const kioskId = body.kiosk_id !== undefined ? body.kiosk_id : null;
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if (filterId !== null && Number(kioskId) !== filterId) {
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return res.status(200).end();
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}
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const out = {
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topic: TOPIC,
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payload: {
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kiosk_id: kioskId,
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kiosk_name: body.kiosk_name || null,
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cpu_temp_c: body.cpu_temp_c !== undefined ? body.cpu_temp_c : null,
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fan_rpm: body.fan_rpm !== undefined ? body.fan_rpm : null,
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fan_pwm: body.fan_pwm !== undefined ? body.fan_pwm : null,
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},
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};
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const tempStr = out.payload.cpu_temp_c != null ? out.payload.cpu_temp_c + "C" : "";
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node.status({
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fill: "green",
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shape: "dot",
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text: (out.payload.kiosk_name || String(out.payload.kiosk_id || "")) + " " + tempStr,
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});
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node.send(out);
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res.status(200).end();
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}
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RED.httpNode.post(ROUTE, handler);
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node.on("close", function (done) {
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const stack = RED.httpNode && RED.httpNode._router && RED.httpNode._router.stack;
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if (stack) {
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for (let i = stack.length - 1; i >= 0; i--) {
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const layer = stack[i];
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if (!layer || !layer.route || layer.route.path !== ROUTE) continue;
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const inner = layer.route.stack;
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if (Array.isArray(inner)) {
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for (let j = inner.length - 1; j >= 0; j--) {
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if (inner[j] && inner[j].handle === handler) inner.splice(j, 1);
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}
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if (inner.length === 0) stack.splice(i, 1);
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}
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}
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}
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done();
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});
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}
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RED.nodes.registerType("bf-trigger-status", BfTriggerStatusNode);
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};
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