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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.
69 lines
2.3 KiB
JavaScript
69 lines
2.3 KiB
JavaScript
/**
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* bf-trigger-camera-changed — fires when a camera entity is created, updated,
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* or deleted in admin.
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*
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* Topic filter: `camera.changed`. Server's nodered-bridge POSTs to
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* `${noderedUrl}/in/camera.changed` 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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* - camera_id: only fire for that camera id
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*
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* Output msg.payload: { camera_id, event: "created" | "updated" | "deleted" }
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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 = "camera.changed";
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const ROUTE = "/api/internal/" + TOPIC;
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function BfTriggerCameraChangedNode(config) {
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RED.nodes.createNode(this, config);
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const node = this;
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const filterIdRaw = (config.camera_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 camId = body.camera_id !== undefined ? body.camera_id : null;
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if (filterId !== null && Number(camId) !== 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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camera_id: camId,
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event: body.event || null,
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},
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};
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node.status({
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fill: "green",
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shape: "dot",
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text: String(out.payload.camera_id || "") + " " + (out.payload.event || ""),
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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-camera-changed", BfTriggerCameraChangedNode);
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};
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