daas-sdk/examples/server.js

nodejs wrapper for the DaaS-IoT SDK

// change require("../index.js") to require("daas-iot")
// if you are using this code outside of this example folder
const { DaasIoT, DriverTypes } = require("../index.js");

const daasApi = new DaasIoT("server");

const SID = 100;
const SERVER_DIN = 101;
daasApi.doInit(SID, SERVER_DIN);

// Event when a new DIN is connected
daasApi.onDinConnected((din) => {
    console.log("DIN Accepted:", din);
});

// Event when a 'Message' is received
daasApi.onDDOReceived((din) => {
    console.log("DDO received for DIN: " + din);

    // Make sure to locate the DIN before pulling data
    daasApi.locate(din);

    daasApi.pull(din, (origin, timestamp, typeset, data) => {
        console.log(`⬇ Pulling data from DIN: ${origin} - typeset: ${typeset} - data: `);
        console.log(new TextDecoder().decode(data));
    });
});

// Enable the IPv4 driver on the server 
const SERVER_URL = '127.0.0.1:2101'
if (daasApi.enableDriver(DriverTypes.INET4, SERVER_URL)) {
    console.log("Driver enabled!");
}

// Mapping the client DIN so that the server will accept its requests
const CLIENT_DIN = 102;
if (daasApi.map(CLIENT_DIN)) {
    console.log("Remote Node Mapped");
}

// Activate the server
if (daasApi.doPerform()) {
    console.log("Node performed!");
}