+ }, OCPPConstants.OCPP_WEBSOCKET_TIMEOUT);
+ chargingStation.wsConnection?.send(messageToSend, (error?: Error) => {
+ PerformanceStatistics.endMeasure(commandName, beginId);
+ clearTimeout(sendTimeout);
+ if (isNullOrUndefined(error)) {
+ logger.debug(
+ `${chargingStation.logPrefix()} >> Command '${commandName}' sent ${OCPPServiceUtils.getMessageTypeString(
+ messageType,
+ )} payload: ${messageToSend}`,
+ );
+ if (messageType === MessageType.CALL_MESSAGE) {
+ this.cacheRequestPromise(
+ chargingStation,
+ messageId,
+ messagePayload as JsonType,
+ commandName,
+ responseCallback,
+ errorCallback,
+ );
+ } else {
+ // Resolve response
+ return resolve(messagePayload);
+ }
+ } else if (error) {
+ const ocppError = new OCPPError(
+ ErrorType.GENERIC_ERROR,
+ `WebSocket errored for ${
+ params?.skipBufferingOnError === false ? '' : 'non '
+ }buffered message id '${messageId}' with content '${messageToSend}'`,
+ commandName,
+ { name: error.name, message: error.message, stack: error.stack },
+ );
+ if (params?.skipBufferingOnError === false) {
+ return bufferAndRejectWithOcppError(ocppError);
+ }
+ return rejectWithOcppError(ocppError);