server_codebase.ts

// security
// security
app.use(helmet());
app.disable('x-powered-by');
const limiter = rateLimit({
    windowMs: 15 * 60 * 1000, // 15 minutes
    limit: 100, // Limit each IP to 100 requests per `window` (here, per 15 minutes).
    message: 'Too many requests from this IP, please try again later.',
    standardHeaders: 'draft-7', // draft-6: `RateLimit-*` headers; draft-7: combined `RateLimit` header
    legacyHeaders: false, // Disable the `X-RateLimit-*` headers.
    // store: ... , // Use an external store for consistency across multiple server instances.
})
app.use(limiter);
// security

app.use(express.json());
app.use(cors({
    // origin: allowedOrigins, 
}));


// router paths
app.use("/iot_dumps", iot_dumps_router);
app.use("/temperature", temp_router);
app.use("/humidity", humidity_router);
app.use("/proximity", proximity_router);
app.use("/luminosity", luminosity_router);
app.use("/ldr", ldr_router);
app.use("/led_status", led_status_router);
// router paths


// sample api calls to mongodb database
// GET /
// GET /?limit=100
router.get("/", async (req, res) => {
    const limit = req?.query?.limit ? Number(req.query.limit) : 100;
    let results = await db.collection(collection)
        .find({})
        .limit(limit)
        .toArray();
    res.header("Content-Type", 'application/json');
    res.send(JSON.stringify(results, null, 4)).status(200);
});

// GET /device_name_list
router.get("/device_name_list", async (req, res) => {
    let results = await db.collection(collection).aggregate([
        { $group: { _id: null, list_of_device_name: { $addToSet: "$device_name" } } },
        { $project: { _id: 0 } }
    ])
        .toArray();
    res.header("Content-Type", 'application/json');
    res.send(JSON.stringify(results, null, 4)).status(200);
})

// GET /place_id_list
router.get("/place_id_list", async (req, res) => {
    let results = await db.collection(collection).aggregate([
        { $group: { _id: null, list_of_place_id: { $addToSet: "$place_id" } } },
        { $project: { _id: 0 } },
    ])
        .toArray();
    res.header("Content-Type", 'application/json');
    res.send(JSON.stringify(results, null, 4)).status(200);
})