OCPP Authorization

Question

I'm trying to create an OCPP Server to handle the Electronic Vehicle actions. I'll use the NodeJS and websocket for the communication between server and client(charger).

Here are the technologies I use:

NodeJS Version: 18.13.0 
OCPP Version: 1.6.10
Charger Brand: Teltonika

I've tried one file JavaScript script to handle this purpose. Here are my code:

const moment = require("moment");
const WebSocket = require("ws");

const connectivity =  {
  ip: "192.168.1.17",
  port: 8080,
};;

const url = `ws://${connectivity.ip}:${connectivity.port}`;
const wss = new WebSocket.Server({ port: connectivity.port });

console.log(`Server running on ${url}`);

wss.on("connection", function connection(ws) {
    ws.on("message", function incoming(message) {
      try {
        var msg = JSON.parse(message);
        console.log("Incoming message", msg);

        if (msg[2] === "BootNotification") {
          const acceptJSON = {
            "MessageTypeId": "3",
            "UniqueId": "12345",
            "Payload": {
              "currentTime": "2019-01-01T00:00:00Z",
              "interval":10,
              "status":"Accepted",
              "heartbeatInterval":30
            }
          }
          ws.send(JSON.stringify(acceptJSON));
          console.log("send", JSON.stringify(acceptJSON));

          const authorizeJSON = {
            "Action": "Authorize",
            "IdTag": "TEST123",
            "MessageId": moment().unix().toString(),
            "Payload": null
          }
          ws.send(JSON.stringify(authorizeJSON));
          console.log("send", JSON.stringify(authorizeJSON));

          const heartbeat = () => {
            const heartbeatJSON = {
              "MessageTypeId": "2",
              "UniqueId": "123",
              "Action": "Heartbeat",
              "Payload": {}
            };
            ws.send(JSON.stringify(heartbeatJSON));
            console.log("HEARTBEAT sent");
          };
          heartbeat();
          setInterval(heartbeat, 10000);
        } else if (msg[2] === "Heartbeat") {
          console.log("Heartbeat");
          ws.send('{"1":2,"2":3,"3":{"currentTime":"2019-01-01T00:00:00Z"}}');
        }
      } catch (error) {
        console.log("Error", error);
      }
    });

    ws.on("close", function() {
      console.log("disconnected");
    });

    ws.on("error", function(error) {
      console.log(error);
    });
});

192.168.1.17 is my local IP address. I have connected my device to wifi. Then I set the client(charger)'s target OCPP URL to ws://192.168.1.17:8080/ and Charge Point Identity to "TEST123" on the mobile application of the device. I can get this message from the device:

[
  2,
  '35',
  'BootNotification',
  {
    chargePointModel: 'TeltoCharge_EVC1201P',
    chargePointVendor: 'Teltonika Energy',
    chargePointSerialNumber: '6000XXXXXX',
    firmwareVersion: 'v1.6.10'
  }
]

So I understand client(charger) can connect to the websocket. But it shows OCPP UNRESPONSIVE error on the mobile app. I made a research about it and they mention that the authorization can not be made.

I'm new to OCPP protocol. How can I successfully authorize the device? Thanks

OCPP Authorization

0 Answers0