LocationHub/server/src/controller/ttnController.ts

106 lines
3.5 KiB
TypeScript

import express, { Request, Response } from "express";
import { container } from "tsyringe";
import { domainEventEmitter } from "../config/eventEmitter";
import {
TtnMessageReceivedEvent,
TtnMessageReceivedEventName,
} from "../event/ttnMessageReceivedEvent";
import { validateData } from "../middleware/validationMiddleware";
import { TtnMessage } from "../models/ttnMessage";
import { LpTtnEndDeviceUplinksService } from "../services/lpTtnEndDeviceUplinksService";
import { TtnGatewayReceptionService } from "../services/ttnGatewayReceptionService";
import { WifiScanService } from "../services/wifiScanService";
import { ttnMessageValidator } from "../validation/ttn/ttnMessageValidation";
const lpTtnEndDeviceUplinksService = container.resolve(
LpTtnEndDeviceUplinksService
);
const ttnGatewayReceptionService = container.resolve(
TtnGatewayReceptionService
);
const wifiScanService = container.resolve(WifiScanService);
const router = express.Router();
router.post(
"/webhook",
validateData(ttnMessageValidator),
async (req: Request, res: Response) => {
try {
const message = req.body as TtnMessage;
const { lp_ttn_end_device_uplinks_id } =
await lpTtnEndDeviceUplinksService.createUplink({
device_id: message.end_device_ids.device_id,
application_ids:
message.end_device_ids.application_ids.application_id,
dev_eui: message.end_device_ids.dev_eui,
join_eui: message.end_device_ids.join_eui,
dev_addr: message.end_device_ids.dev_addr,
received_at_utc: new Date(message.received_at),
battery: message.uplink_message.decoded_payload?.messages[0].find(
(e) => e.type === "Battery"
)?.measurementValue,
latitude: 0 /*
message.uplink_message.decoded_payload.messages[0].find(
(e) => e.type === "Latitude"
)?.measurementValue
*/,
longitude: 0,
/*
message.uplink_message.decoded_payload.messages[0].find(
(e) => e.type === "Longitude"
)?.measurementValue
*/
});
const wifiScans =
message.uplink_message.decoded_payload?.messages[0]
.find((e) => e.type === "Wi-Fi Scan")
?.measurementValue?.map((w) => ({
lp_ttn_end_device_uplinks_id,
mac: w.mac,
rssi: w.rssi,
})) ?? [];
const ttnGatewayReceptions = message.uplink_message.rx_metadata.map(
(g) => ({
lp_ttn_end_device_uplinks_id,
gateway_id: g.gateway_ids.gateway_id,
eui: g.gateway_ids.eui,
rssi: g.rssi,
latitude: g.location.latitude,
longitude: g.location.longitude,
altitude: g.location.altitude,
})
);
const event: TtnMessageReceivedEvent = {
lp_ttn_end_device_uplinks_id,
wifis: wifiScans.map((w) => ({ mac: w.mac, rssi: w.rssi })),
ttnGateways: ttnGatewayReceptions.map((g) => ({
rssi: g.rssi,
altitude: g.altitude,
latitude: g.latitude,
longitude: g.longitude,
})),
};
domainEventEmitter.emit(TtnMessageReceivedEventName, event);
await Promise.all([
wifiScanService.createWifiScans(wifiScans),
ttnGatewayReceptionService.createGatewayReceptions(
ttnGatewayReceptions
),
]);
res.status(200);
} catch (error) {
console.log(error);
res.status(500).json({ error: "Error creating uplink" });
}
}
);
export default router;