Merge pull request #10 from shiv3/hotfix/fix-metervalue-transactionid

add transaction_id to metervalue

Author: shiv3

src/cp/ChargePoint.ts

@@ -240,7 +240,7 @@ export class ChargePoint {
   public sendMeterValue(connectorId: number): void {
     const connector = this.getConnector(connectorId);
     if (connector) {
-      this._messageHandler.sendMeterValue(connectorId, connector.meterValue);
+      this._messageHandler.sendMeterValue(connector.transaction?.id ?? undefined, connectorId, connector.meterValue);
     } else {
       this._logger.error(`Connector ${connectorId} not found`);
     }

src/cp/OCPPMessageHandler.ts

@@ -156,9 +156,10 @@ export class OCPPMessageHandler {
     );
   }
 
-  public sendMeterValue(connectorId: number, meterValue: number): void {
+  public sendMeterValue(transactionId:number|undefined,connectorId: number, meterValue: number): void {
     const messageId = this.generateMessageId();
     const payload: request.MeterValuesRequest = {
+      transactionId: transactionId,
       connectorId: connectorId,
       meterValue: [
         {