X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;ds=sidebyside;f=src%2Fcharging-station%2Focpp%2FOCPPRequestService.ts;h=e78f71c56d1300137c12800c8f343e2a1ae9791c;hb=a4385edc2344433c20fcb92d01cbe5a330b850b4;hp=aeb09c332b7629acd8340fb874fd8d90348ecef4;hpb=a6ef1ece74c0d08e86a905571f4f6045c28131cb;p=e-mobility-charging-stations-simulator.git

diff --git a/src/charging-station/ocpp/OCPPRequestService.ts b/src/charging-station/ocpp/OCPPRequestService.ts
index aeb09c33..e78f71c5 100644
--- a/src/charging-station/ocpp/OCPPRequestService.ts
+++ b/src/charging-station/ocpp/OCPPRequestService.ts
@@ -1,12 +1,12 @@
-import Ajv, { type JSONSchemaType, type ValidateFunction } from 'ajv';
-import ajvFormats from 'ajv-formats';
+import _Ajv, { type JSONSchemaType, type ValidateFunction } from 'ajv'
+import _ajvFormats from 'ajv-formats'
 
-import { OCPPConstants } from './OCPPConstants.js';
-import type { OCPPResponseService } from './OCPPResponseService.js';
-import { OCPPServiceUtils } from './OCPPServiceUtils.js';
-import type { ChargingStation } from '../../charging-station/index.js';
-import { OCPPError } from '../../exception/index.js';
-import { PerformanceStatistics } from '../../performance/index.js';
+import { OCPPConstants } from './OCPPConstants.js'
+import type { OCPPResponseService } from './OCPPResponseService.js'
+import { OCPPServiceUtils } from './OCPPServiceUtils.js'
+import type { ChargingStation } from '../../charging-station/index.js'
+import { OCPPError } from '../../exception/index.js'
+import { PerformanceStatistics } from '../../performance/index.js'
 import {
   ChargingStationEvents,
   type ErrorCallback,
@@ -21,41 +21,44 @@ import {
   type RequestParams,
   type Response,
   type ResponseCallback,
-  type ResponseType,
-} from '../../types/index.js';
+  type ResponseType
+} from '../../types/index.js'
 import {
   cloneObject,
   formatDurationMilliSeconds,
   handleSendMessageError,
-  isNullOrUndefined,
-  logger,
-} from '../../utils/index.js';
+  logger
+} from '../../utils/index.js'
+type Ajv = _Ajv.default
+// eslint-disable-next-line @typescript-eslint/no-redeclare
+const Ajv = _Ajv.default
+const ajvFormats = _ajvFormats.default
 
-const moduleName = 'OCPPRequestService';
+const moduleName = 'OCPPRequestService'
 
 const defaultRequestParams: RequestParams = {
   skipBufferingOnError: false,
   triggerMessage: false,
-  throwError: false,
-};
+  throwError: false
+}
 
 export abstract class OCPPRequestService {
-  private static instance: OCPPRequestService | null = null;
-  private readonly version: OCPPVersion;
-  private readonly ajv: Ajv;
-  private readonly ocppResponseService: OCPPResponseService;
-  private readonly jsonValidateFunctions: Map<RequestCommand, ValidateFunction<JsonType>>;
-  protected abstract jsonSchemas: Map<RequestCommand, JSONSchemaType<JsonType>>;
+  private static instance: OCPPRequestService | null = null
+  private readonly version: OCPPVersion
+  private readonly ajv: Ajv
+  private readonly ocppResponseService: OCPPResponseService
+  private readonly jsonValidateFunctions: Map<RequestCommand, ValidateFunction<JsonType>>
+  protected abstract jsonSchemas: Map<RequestCommand, JSONSchemaType<JsonType>>
 
-  protected constructor(version: OCPPVersion, ocppResponseService: OCPPResponseService) {
-    this.version = version;
+  protected constructor (version: OCPPVersion, ocppResponseService: OCPPResponseService) {
+    this.version = version
     this.ajv = new Ajv({
       keywords: ['javaType'],
-      multipleOfPrecision: 2,
-    });
-    ajvFormats(this.ajv);
-    this.jsonValidateFunctions = new Map<RequestCommand, ValidateFunction<JsonType>>();
-    this.ocppResponseService = ocppResponseService;
+      multipleOfPrecision: 2
+    })
+    ajvFormats(this.ajv)
+    this.jsonValidateFunctions = new Map<RequestCommand, ValidateFunction<JsonType>>()
+    this.ocppResponseService = ocppResponseService
     this.requestHandler = this.requestHandler.bind(this) as <
       // eslint-disable-next-line @typescript-eslint/no-unused-vars
       ReqType extends JsonType,
@@ -64,71 +67,71 @@ export abstract class OCPPRequestService {
       chargingStation: ChargingStation,
       commandName: RequestCommand,
       commandParams?: JsonType,
-      params?: RequestParams,
-    ) => Promise<ResType>;
+      params?: RequestParams
+    ) => Promise<ResType>
     this.sendMessage = this.sendMessage.bind(this) as (
       chargingStation: ChargingStation,
       messageId: string,
       messagePayload: JsonType,
       commandName: RequestCommand,
-      params?: RequestParams,
-    ) => Promise<ResponseType>;
+      params?: RequestParams
+    ) => Promise<ResponseType>
     this.sendResponse = this.sendResponse.bind(this) as (
       chargingStation: ChargingStation,
       messageId: string,
       messagePayload: JsonType,
-      commandName: IncomingRequestCommand,
-    ) => Promise<ResponseType>;
+      commandName: IncomingRequestCommand
+    ) => Promise<ResponseType>
     this.sendError = this.sendError.bind(this) as (
       chargingStation: ChargingStation,
       messageId: string,
       ocppError: OCPPError,
-      commandName: RequestCommand | IncomingRequestCommand,
-    ) => Promise<ResponseType>;
+      commandName: RequestCommand | IncomingRequestCommand
+    ) => Promise<ResponseType>
     this.internalSendMessage = this.internalSendMessage.bind(this) as (
       chargingStation: ChargingStation,
       messageId: string,
       messagePayload: JsonType | OCPPError,
       messageType: MessageType,
       commandName: RequestCommand | IncomingRequestCommand,
-      params?: RequestParams,
-    ) => Promise<ResponseType>;
+      params?: RequestParams
+    ) => Promise<ResponseType>
     this.buildMessageToSend = this.buildMessageToSend.bind(this) as (
       chargingStation: ChargingStation,
       messageId: string,
       messagePayload: JsonType | OCPPError,
       messageType: MessageType,
-      commandName: RequestCommand | IncomingRequestCommand,
-    ) => string;
+      commandName: RequestCommand | IncomingRequestCommand
+    ) => string
     this.validateRequestPayload = this.validateRequestPayload.bind(this) as <T extends JsonType>(
       chargingStation: ChargingStation,
       commandName: RequestCommand | IncomingRequestCommand,
-      payload: T,
-    ) => boolean;
+      payload: T
+    ) => boolean
     this.validateIncomingRequestResponsePayload = this.validateIncomingRequestResponsePayload.bind(
-      this,
+      this
     ) as <T extends JsonType>(
       chargingStation: ChargingStation,
       commandName: RequestCommand | IncomingRequestCommand,
-      payload: T,
-    ) => boolean;
+      payload: T
+    ) => boolean
   }
 
   public static getInstance<T extends OCPPRequestService>(
     this: new (ocppResponseService: OCPPResponseService) => T,
-    ocppResponseService: OCPPResponseService,
+    ocppResponseService: OCPPResponseService
   ): T {
     if (OCPPRequestService.instance === null) {
-      OCPPRequestService.instance = new this(ocppResponseService);
+      OCPPRequestService.instance = new this(ocppResponseService)
     }
-    return OCPPRequestService.instance as T;
+    return OCPPRequestService.instance as T
   }
 
-  public async sendResponse(
+  public async sendResponse (
     chargingStation: ChargingStation,
     messageId: string,
     messagePayload: JsonType,
-    commandName: IncomingRequestCommand,
+    commandName: IncomingRequestCommand
   ): Promise<ResponseType> {
     try {
       // Send response message
@@ -137,21 +140,21 @@ export abstract class OCPPRequestService {
         messageId,
         messagePayload,
         MessageType.CALL_RESULT_MESSAGE,
-        commandName,
-      );
+        commandName
+      )
     } catch (error) {
       handleSendMessageError(chargingStation, commandName, error as Error, {
-        throwError: true,
-      });
-      return null;
+        throwError: true
+      })
+      return null
     }
   }
 
-  public async sendError(
+  public async sendError (
     chargingStation: ChargingStation,
     messageId: string,
     ocppError: OCPPError,
-    commandName: RequestCommand | IncomingRequestCommand,
+    commandName: RequestCommand | IncomingRequestCommand
   ): Promise<ResponseType> {
     try {
       // Send error message
@@ -160,25 +163,25 @@ export abstract class OCPPRequestService {
         messageId,
         ocppError,
         MessageType.CALL_ERROR_MESSAGE,
-        commandName,
-      );
+        commandName
+      )
     } catch (error) {
-      handleSendMessageError(chargingStation, commandName, error as Error);
-      return null;
+      handleSendMessageError(chargingStation, commandName, error as Error)
+      return null
     }
   }
 
-  protected async sendMessage(
+  protected async sendMessage (
     chargingStation: ChargingStation,
     messageId: string,
     messagePayload: JsonType,
     commandName: RequestCommand,
-    params?: RequestParams,
+    params?: RequestParams
   ): Promise<ResponseType> {
     params = {
       ...defaultRequestParams,
-      ...params,
-    };
+      ...params
+    }
     try {
       return await this.internalSendMessage(
         chargingStation,
@@ -186,140 +189,142 @@ export abstract class OCPPRequestService {
         messagePayload,
         MessageType.CALL_MESSAGE,
         commandName,
-        params,
-      );
+        params
+      )
     } catch (error) {
       handleSendMessageError(chargingStation, commandName, error as Error, {
-        throwError: params.throwError,
-      });
-      return null;
+        throwError: params.throwError
+      })
+      return null
     }
   }
 
   private validateRequestPayload<T extends JsonType>(
     chargingStation: ChargingStation,
     commandName: RequestCommand | IncomingRequestCommand,
-    payload: T,
+    payload: T
   ): boolean {
     if (chargingStation.stationInfo?.ocppStrictCompliance === false) {
-      return true;
+      return true
     }
-    if (this.jsonSchemas.has(commandName as RequestCommand) === false) {
+    if (!this.jsonSchemas.has(commandName as RequestCommand)) {
       logger.warn(
-        `${chargingStation.logPrefix()} ${moduleName}.validateRequestPayload: No JSON schema found for command '${commandName}' PDU validation`,
-      );
-      return true;
+        `${chargingStation.logPrefix()} ${moduleName}.validateRequestPayload: No JSON schema found for command '${commandName}' PDU validation`
+      )
+      return true
     }
-    const validate = this.getJsonRequestValidateFunction<T>(commandName as RequestCommand);
-    payload = cloneObject<T>(payload);
-    OCPPServiceUtils.convertDateToISOString<T>(payload);
+    const validate = this.getJsonRequestValidateFunction<T>(commandName as RequestCommand)
+    payload = cloneObject<T>(payload)
+    OCPPServiceUtils.convertDateToISOString<T>(payload)
     if (validate(payload)) {
-      return true;
+      return true
     }
     logger.error(
       `${chargingStation.logPrefix()} ${moduleName}.validateRequestPayload: Command '${commandName}' request PDU is invalid: %j`,
-      validate.errors,
-    );
+      validate.errors
+    )
     // OCPPError usage here is debatable: it's an error in the OCPP stack but not targeted to sendError().
     throw new OCPPError(
       OCPPServiceUtils.ajvErrorsToErrorType(validate.errors),
       'Request PDU is invalid',
       commandName,
-      JSON.stringify(validate.errors, undefined, 2),
-    );
+      JSON.stringify(validate.errors, undefined, 2)
+    )
   }
 
-  private getJsonRequestValidateFunction<T extends JsonType>(commandName: RequestCommand) {
-    if (this.jsonValidateFunctions.has(commandName) === false) {
+  private getJsonRequestValidateFunction<T extends JsonType>(
+    commandName: RequestCommand
+  ): ValidateFunction<JsonType> {
+    if (!this.jsonValidateFunctions.has(commandName)) {
       this.jsonValidateFunctions.set(
         commandName,
-        this.ajv.compile<T>(this.jsonSchemas.get(commandName)!).bind(this),
-      );
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        this.ajv.compile<T>(this.jsonSchemas.get(commandName)!).bind(this)
+      )
     }
-    return this.jsonValidateFunctions.get(commandName)!;
+    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+    return this.jsonValidateFunctions.get(commandName)!
   }
 
   private validateIncomingRequestResponsePayload<T extends JsonType>(
     chargingStation: ChargingStation,
     commandName: RequestCommand | IncomingRequestCommand,
-    payload: T,
+    payload: T
   ): boolean {
     if (chargingStation.stationInfo?.ocppStrictCompliance === false) {
-      return true;
+      return true
     }
     if (
-      this.ocppResponseService.jsonIncomingRequestResponseSchemas.has(
-        commandName as IncomingRequestCommand,
-      ) === false
+      !this.ocppResponseService.jsonIncomingRequestResponseSchemas.has(
+        commandName as IncomingRequestCommand
+      )
     ) {
       logger.warn(
-        `${chargingStation.logPrefix()} ${moduleName}.validateIncomingRequestResponsePayload: No JSON schema found for command '${commandName}' PDU validation`,
-      );
-      return true;
+        `${chargingStation.logPrefix()} ${moduleName}.validateIncomingRequestResponsePayload: No JSON schema found for command '${commandName}' PDU validation`
+      )
+      return true
     }
     const validate = this.getJsonRequestResponseValidateFunction<T>(
-      commandName as IncomingRequestCommand,
-    );
-    payload = cloneObject<T>(payload);
-    OCPPServiceUtils.convertDateToISOString<T>(payload);
+      commandName as IncomingRequestCommand
+    )
+    payload = cloneObject<T>(payload)
+    OCPPServiceUtils.convertDateToISOString<T>(payload)
     if (validate(payload)) {
-      return true;
+      return true
     }
     logger.error(
       `${chargingStation.logPrefix()} ${moduleName}.validateIncomingRequestResponsePayload: Command '${commandName}' reponse PDU is invalid: %j`,
-      validate.errors,
-    );
+      validate.errors
+    )
     // OCPPError usage here is debatable: it's an error in the OCPP stack but not targeted to sendError().
     throw new OCPPError(
       OCPPServiceUtils.ajvErrorsToErrorType(validate.errors),
       'Response PDU is invalid',
       commandName,
-      JSON.stringify(validate.errors, undefined, 2),
-    );
+      JSON.stringify(validate.errors, undefined, 2)
+    )
   }
 
   private getJsonRequestResponseValidateFunction<T extends JsonType>(
-    commandName: IncomingRequestCommand,
-  ) {
-    if (
-      this.ocppResponseService.jsonIncomingRequestResponseValidateFunctions.has(commandName) ===
-      false
-    ) {
+    commandName: IncomingRequestCommand
+  ): ValidateFunction<JsonType> {
+    if (!this.ocppResponseService.jsonIncomingRequestResponseValidateFunctions.has(commandName)) {
       this.ocppResponseService.jsonIncomingRequestResponseValidateFunctions.set(
         commandName,
         this.ajv
+          // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
           .compile<T>(this.ocppResponseService.jsonIncomingRequestResponseSchemas.get(commandName)!)
-          .bind(this),
-      );
+          .bind(this)
+      )
     }
-    return this.ocppResponseService.jsonIncomingRequestResponseValidateFunctions.get(commandName)!;
+    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+    return this.ocppResponseService.jsonIncomingRequestResponseValidateFunctions.get(commandName)!
   }
 
-  private async internalSendMessage(
+  private async internalSendMessage (
     chargingStation: ChargingStation,
     messageId: string,
     messagePayload: JsonType | OCPPError,
     messageType: MessageType,
     commandName: RequestCommand | IncomingRequestCommand,
-    params?: RequestParams,
+    params?: RequestParams
   ): Promise<ResponseType> {
     params = {
       ...defaultRequestParams,
-      ...params,
-    };
+      ...params
+    }
     if (
-      (chargingStation.inUnknownState() === true &&
-        commandName === RequestCommand.BOOT_NOTIFICATION) ||
+      (chargingStation.inUnknownState() && commandName === RequestCommand.BOOT_NOTIFICATION) ||
       (chargingStation.stationInfo?.ocppStrictCompliance === false &&
-        chargingStation.inUnknownState() === true) ||
-      chargingStation.inAcceptedState() === true ||
-      (chargingStation.inPendingState() === true &&
+        chargingStation.inUnknownState()) ||
+      chargingStation.inAcceptedState() ||
+      (chargingStation.inPendingState() &&
         (params.triggerMessage === true || messageType === MessageType.CALL_RESULT_MESSAGE))
     ) {
       // eslint-disable-next-line @typescript-eslint/no-this-alias
-      const self = this;
+      const self = this
       // Send a message through wsConnection
-      return new Promise<ResponseType>((resolve, reject) => {
+      return await new Promise<ResponseType>((resolve, reject) => {
         /**
          * Function that will receive the request's response
          *
@@ -330,8 +335,8 @@ export abstract class OCPPRequestService {
           if (chargingStation.stationInfo?.enableStatistics === true) {
             chargingStation.performanceStatistics?.addRequestStatistic(
               commandName,
-              MessageType.CALL_RESULT_MESSAGE,
-            );
+              MessageType.CALL_RESULT_MESSAGE
+            )
           }
           // Handle the request's response
           self.ocppResponseService
@@ -339,17 +344,17 @@ export abstract class OCPPRequestService {
               chargingStation,
               commandName as RequestCommand,
               payload,
-              requestPayload,
+              requestPayload
             )
             .then(() => {
-              resolve(payload);
+              resolve(payload)
             })
             .catch(reject)
             .finally(() => {
-              chargingStation.requests.delete(messageId);
-              chargingStation.emit(ChargingStationEvents.updated);
-            });
-        };
+              chargingStation.requests.delete(messageId)
+              chargingStation.emit(ChargingStationEvents.updated)
+            })
+        }
 
         /**
          * Function that will receive the request's error response
@@ -358,28 +363,28 @@ export abstract class OCPPRequestService {
          * @param requestStatistic -
          */
         const errorCallback = (ocppError: OCPPError, requestStatistic = true): void => {
-          if (requestStatistic === true && chargingStation.stationInfo?.enableStatistics === true) {
+          if (requestStatistic && chargingStation.stationInfo?.enableStatistics === true) {
             chargingStation.performanceStatistics?.addRequestStatistic(
               commandName,
-              MessageType.CALL_ERROR_MESSAGE,
-            );
+              MessageType.CALL_ERROR_MESSAGE
+            )
           }
           logger.error(
             `${chargingStation.logPrefix()} Error occurred at ${OCPPServiceUtils.getMessageTypeString(
-              messageType,
+              messageType
             )} command ${commandName} with PDU %j:`,
             messagePayload,
-            ocppError,
-          );
-          chargingStation.requests.delete(messageId);
-          chargingStation.emit(ChargingStationEvents.updated);
-          reject(ocppError);
-        };
+            ocppError
+          )
+          chargingStation.requests.delete(messageId)
+          chargingStation.emit(ChargingStationEvents.updated)
+          reject(ocppError)
+        }
 
         const handleSendError = (ocppError: OCPPError): void => {
           if (params?.skipBufferingOnError === false) {
             // Buffer
-            chargingStation.bufferMessage(messageToSend);
+            chargingStation.bufferMessage(messageToSend)
             if (messageType === MessageType.CALL_MESSAGE) {
               this.cacheRequestPromise(
                 chargingStation,
@@ -387,55 +392,55 @@ export abstract class OCPPRequestService {
                 messagePayload as JsonType,
                 commandName,
                 responseCallback,
-                errorCallback,
-              );
+                errorCallback
+              )
             }
           } else if (
             params?.skipBufferingOnError === true &&
             messageType === MessageType.CALL_MESSAGE
           ) {
             // Remove request from the cache
-            chargingStation.requests.delete(messageId);
+            chargingStation.requests.delete(messageId)
           }
-          return reject(ocppError);
-        };
+          reject(ocppError)
+        }
 
         if (chargingStation.stationInfo?.enableStatistics === true) {
-          chargingStation.performanceStatistics?.addRequestStatistic(commandName, messageType);
+          chargingStation.performanceStatistics?.addRequestStatistic(commandName, messageType)
         }
         const messageToSend = this.buildMessageToSend(
           chargingStation,
           messageId,
           messagePayload,
           messageType,
-          commandName,
-        );
+          commandName
+        )
         // Check if wsConnection opened
-        if (chargingStation.isWebSocketConnectionOpened() === true) {
-          const beginId = PerformanceStatistics.beginMeasure(commandName);
+        if (chargingStation.isWebSocketConnectionOpened()) {
+          const beginId = PerformanceStatistics.beginMeasure(commandName)
           const sendTimeout = setTimeout(() => {
-            return handleSendError(
+            handleSendError(
               new OCPPError(
                 ErrorType.GENERIC_ERROR,
                 `Timeout ${formatDurationMilliSeconds(
-                  OCPPConstants.OCPP_WEBSOCKET_TIMEOUT,
+                  OCPPConstants.OCPP_WEBSOCKET_TIMEOUT
                 )} reached for ${
                   params?.skipBufferingOnError === false ? '' : 'non '
                 }buffered message id '${messageId}' with content '${messageToSend}'`,
                 commandName,
-                (messagePayload as OCPPError).details,
-              ),
-            );
-          }, OCPPConstants.OCPP_WEBSOCKET_TIMEOUT);
+                (messagePayload as OCPPError).details
+              )
+            )
+          }, OCPPConstants.OCPP_WEBSOCKET_TIMEOUT)
           chargingStation.wsConnection?.send(messageToSend, (error?: Error) => {
-            PerformanceStatistics.endMeasure(commandName, beginId);
-            clearTimeout(sendTimeout);
-            if (isNullOrUndefined(error)) {
+            PerformanceStatistics.endMeasure(commandName, beginId)
+            clearTimeout(sendTimeout)
+            if (error == null) {
               logger.debug(
                 `${chargingStation.logPrefix()} >> Command '${commandName}' sent ${OCPPServiceUtils.getMessageTypeString(
-                  messageType,
-                )} payload: ${messageToSend}`,
-              );
+                  messageType
+                )} payload: ${messageToSend}`
+              )
               if (messageType === MessageType.CALL_MESSAGE) {
                 this.cacheRequestPromise(
                   chargingStation,
@@ -443,77 +448,77 @@ export abstract class OCPPRequestService {
                   messagePayload as JsonType,
                   commandName,
                   responseCallback,
-                  errorCallback,
-                );
+                  errorCallback
+                )
               } else {
                 // Resolve response
-                return resolve(messagePayload);
+                resolve(messagePayload)
               }
-            } else if (error) {
-              return handleSendError(
+            } else if (error != null) {
+              handleSendError(
                 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 },
-                ),
-              );
+                  { name: error.name, message: error.message, stack: error.stack }
+                )
+              )
             }
-          });
+          })
         } else {
-          return handleSendError(
+          handleSendError(
             new OCPPError(
               ErrorType.GENERIC_ERROR,
               `WebSocket closed for ${
                 params?.skipBufferingOnError === false ? '' : 'non '
               }buffered message id '${messageId}' with content '${messageToSend}'`,
               commandName,
-              (messagePayload as OCPPError).details,
-            ),
-          );
+              (messagePayload as OCPPError).details
+            )
+          )
         }
-      });
+      })
     }
     throw new OCPPError(
       ErrorType.SECURITY_ERROR,
       `Cannot send command ${commandName} PDU when the charging station is in ${chargingStation?.bootNotificationResponse?.status} state on the central server`,
-      commandName,
-    );
+      commandName
+    )
   }
 
-  private buildMessageToSend(
+  private buildMessageToSend (
     chargingStation: ChargingStation,
     messageId: string,
     messagePayload: JsonType | OCPPError,
     messageType: MessageType,
-    commandName: RequestCommand | IncomingRequestCommand,
+    commandName: RequestCommand | IncomingRequestCommand
   ): string {
-    let messageToSend: string;
+    let messageToSend: string
     // Type of message
     switch (messageType) {
       // Request
       case MessageType.CALL_MESSAGE:
         // Build request
-        this.validateRequestPayload(chargingStation, commandName, messagePayload as JsonType);
+        this.validateRequestPayload(chargingStation, commandName, messagePayload as JsonType)
         messageToSend = JSON.stringify([
           messageType,
           messageId,
           commandName,
-          messagePayload,
-        ] as OutgoingRequest);
-        break;
+          messagePayload
+        ] as OutgoingRequest)
+        break
       // Response
       case MessageType.CALL_RESULT_MESSAGE:
         // Build response
         this.validateIncomingRequestResponsePayload(
           chargingStation,
           commandName,
-          messagePayload as JsonType,
-        );
-        messageToSend = JSON.stringify([messageType, messageId, messagePayload] as Response);
-        break;
+          messagePayload as JsonType
+        )
+        messageToSend = JSON.stringify([messageType, messageId, messagePayload] as Response)
+        break
       // Error Message
       case MessageType.CALL_ERROR_MESSAGE:
         // Build Error Message
@@ -523,28 +528,28 @@ export abstract class OCPPRequestService {
           (messagePayload as OCPPError).code,
           (messagePayload as OCPPError).message,
           (messagePayload as OCPPError).details ?? {
-            command: (messagePayload as OCPPError).command ?? commandName,
-          },
-        ] as ErrorResponse);
-        break;
+            command: (messagePayload as OCPPError).command ?? commandName
+          }
+        ] as ErrorResponse)
+        break
     }
-    return messageToSend;
+    return messageToSend
   }
 
-  private cacheRequestPromise(
+  private cacheRequestPromise (
     chargingStation: ChargingStation,
     messageId: string,
     messagePayload: JsonType,
     commandName: RequestCommand | IncomingRequestCommand,
     responseCallback: ResponseCallback,
-    errorCallback: ErrorCallback,
+    errorCallback: ErrorCallback
   ): void {
     chargingStation.requests.set(messageId, [
       responseCallback,
       errorCallback,
       commandName,
-      messagePayload,
-    ]);
+      messagePayload
+    ])
   }
 
   // eslint-disable-next-line @typescript-eslint/no-unused-vars
@@ -553,6 +558,6 @@ export abstract class OCPPRequestService {
     commandName: RequestCommand,
     // FIXME: should be ReqType
     commandParams?: JsonType,
-    params?: RequestParams,
-  ): Promise<ResType>;
+    params?: RequestParams
+  ): Promise<ResType>
 }