Iam trying to do OCPP protocol (client side) development using JavaScript. So i tried websocket based client server communication. It is not connecting with the server. when i try to connect client with the server the following error occurs on the server side
Connection has been closed for <ChargeBoxID> close reason code [1006] reason [connection reset by peer].
I tried to solve it using WS.onclose event code 1006.but i unable to solve it.
Here is my client side code i got the following error
async function webSockConnect() {
let PingTimer;
let pingTimeout;
delete WS;
const url = ChargepointConfig.HostAddress + '/' + ChargepointConfig.ChargeBoxID;
WS = new WebSocket(url, "<protocol name>", { perMessageDeflate: false });
console.log('Host Address-->', url);
WS.onopen = () => {
console.log('WS connected-->');
CMSConnectionState = true;
};
WS.on('pong', (pingData) => {
CMSConnectionState = true;
// console.log('pingData-->', pingData.toString());
clearTimeout(pingTimeout);
pingTimeout = setTimeout(() => {
console.log('CMS Offline');
WS.terminate();
}, 3 * 1000);
});
WS.onmessage = (WSDataframe) => {
let WSData = new PDU(JSON.parse(WSDataframe.data));
try {
console.log('525', WSData.PayLoad);
} catch (error) {
console.log('527', WSData);
}
switch (WSData.MessageTypeId) {
case 2:
let schema = SchemaList[WSData.Action];
let valid = ajv.validate(schema, WSData.PayLoad);
if (!valid) {
let errMsg = ajv.errors;
let data = [
4,
WSData.UniqueId,
'FormationViolation',
'The payload for action could not be deserialized',
{ "errorMsg": errMsg }
];
// console.log('errMsg-->',errMsg);
WS.send(JSON.stringify(data));
} else {
requestHandler(WSData);
}
break;
case 3:
responseHandler(WSData);
break;
default:
console.log('CALLERROR')
break;
}
};
WS.onerror = (error) => {
// console.log(`WebSocket error: ${error}`)
// console.log('WebSocket error--->', error)
console.log('WSerror-->', CMSConnectionState);
CMSConnectionState = false;
WS.close();
};
WS.onclose = (evt) => {
console.log('event code -->', evt.code);
/* if(evt.code == 1006){
console.log('event code -->', evt.code);
setTimeout(webSockConnect,60000);
/* setTimeout(() => {
webSockConnect();
}, 60 * 1000); */
// }
// else
// {
console.log('WSClosed-->', CMSConnectionState);
CMSConnectionState = false;
clearTimeout(pingTimeout);
clearInterval(PingTimer);
setTimeout(() => {
webSockConnect();
}, 60 * 1000);
};
