1 <!-- markdownlint-disable-file MD033 MD024 -->
3 # [e-mobility charging stations simulator](https://github.com/sap/e-mobility-charging-stations-simulator)
5 [![REUSE status](https://api.reuse.software/badge/github.com/SAP/e-mobility-charging-stations-simulator)](https://api.reuse.software/info/github.com/SAP/e-mobility-charging-stations-simulator)
9 Simple [node.js](https://nodejs.org/) software to simulate and scale a set of charging stations based on the OCPP-J 1.6 protocol as part of SAP e-Mobility solution.
13 Install the [node.js](https://nodejs.org/) LTS runtime environment:
17 - [Chocolatey](https://chocolatey.org/):
20 choco install -y nodejs-lts
25 - [Homebrew](https://brew.sh/):
33 - [NodeSource](https://github.com/nodesource/distributions) Node.js Binary Distributions for version >= 16.X
37 In the repository root, run the following command:
43 ## Initial configuration
45 Copy the configuration template file [src/assets/config-template.json](src/assets/config-template.json) to [src/assets/config.json](src/assets/config.json).
46 Copy the authorization RFID tags template file [src/assets/authorization-tags-template.json](src/assets/authorization-tags-template.json) to [src/assets/authorization-tags.json](src/assets/authorization-tags.json).
48 Tweak them to your needs by following the section [configuration files syntax](README.md#configuration-files-syntax).
52 To start the program, run: `npm start`.
56 See Web UI [README.md](ui/web/README.md) for more information.
58 ## Configuration files syntax
60 All configuration files are in the JSON standard format.
62 **Configuration files locations**:
64 - charging stations simulator configuration: [src/assets/config.json](src/assets/config.json);
65 - charging station configuration templates: [src/assets/station-templates](src/assets/station-templates);
66 - charging station configurations: [dist/assets/configurations](dist/assets/configurations);
67 - charging station RFID tags lists: [src/assets](src/assets).
69 The charging stations simulator's configuration parameters must be within the `src/assets/config.json` file. A charging station simulator configuration template file is available at [src/assets/config-template.json](src/assets/config-template.json).
71 All charging station configuration templates are in the directory [src/assets/station-templates](src/assets/station-templates).
73 A list of RFID tags must be defined for the automatic transaction generator with a default location and name: `src/assets/authorization-tags.json`. A template file is available at [src/assets/authorization-tags-template.json](src/assets/authorization-tags-template.json).
75 **Configuration files hierarchy and priority**:
77 1. charging station configuration: [dist/assets/configurations](dist/assets/configurations);
78 2. charging station configuration template: [src/assets/station-templates](src/assets/station-templates);
79 3. charging stations simulator configuration: [src/assets/config.json](src/assets/config.json).
81 The charging stations simulator have an automatic configuration files reload feature at change for:
83 - charging stations simulator configuration;
84 - charging station configuration templates;
85 - charging station authorization RFID tags lists.
87 But the modifications to test have to be done to the files in the build target directory [dist/assets](dist/assets). Once the modifications are finished, they have to be reported or copied to the matching files in the build source directory [src/assets](src/assets) to ensure they will be taken into account at next build.
89 ### Charging stations simulator configuration
91 **src/assets/config.json**:
93 | Key | Value(s) | Default Value | Value type | Description |
94 | -------------------------- | ------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
95 | supervisionUrls | | [] | string \| string[] | string or array of global connection URIs to OCPP-J servers |
96 | supervisionUrlDistribution | round-robin/random/charging-station-affinity | charging-station-affinity | boolean | supervision urls distribution policy to simulated charging stations |
97 | logStatisticsInterval | | 60 | integer | seconds between charging stations statistics output in the logs |
98 | logConsole | true/false | false | boolean | output logs on the console |
99 | logFormat | | simple | string | [winston](https://github.com/winstonjs/winston) log format |
100 | logRotate | true/false | true | boolean | enable daily log files rotation |
101 | logMaxFiles | x/"xd" where x is an integer | undefined | integer \| string | maximum number of log files |
102 | logMaxSize | x/"xk"/"xm"/"xg" where x is a number | undefined | number \| string | maximum size of log files in bytes, or units of kb, mb, and gb |
103 | logLevel | emerg/alert/crit/error/warning/notice/info/debug | info | string | [winston](https://github.com/winstonjs/winston) logging level |
104 | logFile | | combined.log | string | log file relative path |
105 | logErrorFile | | error.log | string | error log file relative path |
106 | worker | | {<br />"processType": "workerSet",<br />"startDelay": 500,<br />"elementStartDelay": 0,<br />"elementsPerWorker": 1,<br />"poolMinSize": 4,<br />"poolMaxSize": 16,<br />"poolStrategy": "ROUND_ROBIN"<br />} | {<br />processType: WorkerProcessType;<br />startDelay: number;<br />elementStartDelay: number;<br />elementsPerWorker: number;<br />poolMinSize: number;<br />poolMaxSize: number;<br />poolStrategy: WorkerChoiceStrategy;<br />} | Worker configuration section:<br />- processType: worker threads process type (workerSet/staticPool/dynamicPool)<br />- startDelay: milliseconds to wait at worker threads startup (only for workerSet threads process type)<br />- elementStartDelay: milliseconds to wait at charging station startup<br />- elementsPerWorker: number of charging stations per worker threads for the `workerSet` process type<br />- poolMinSize: worker threads pool minimum number of threads</br >- poolMaxSize: worker threads pool maximum number of threads<br />- poolStrategy: worker threads pool [poolifier](https://github.com/poolifier/poolifier) worker choice strategy |
107 | uiServer | | {<br />"enabled": true,<br />"type": "ws",<br />"options": {<br />"host": "localhost",<br />"port": 8080<br />}<br />} | {<br />enabled: boolean;<br />type: ApplicationProtocol;<br />options: ServerOptions;<br />authentication: {<br />enabled: boolean;<br />type: AuthenticationType;<br />username: string;<br />password: string;<br />}<br />} | UI server configuration section |
108 | performanceStorage | | {<br />"enabled": false,<br />"type": "jsonfile",<br />"file:///performanceRecords.json"<br />} | {<br />enabled: boolean;<br />type: string;<br />URI: string;<br />}<br />where type can be 'jsonfile' or 'mongodb' | performance storage configuration section |
109 | stationTemplateUrls | | {}[] | {<br />file: string;<br />numberOfStations: number;<br />}[] | array of charging station configuration templates URIs configuration section (charging station configuration template file name and number of stations) |
111 #### Worker process model
114 Worker set executing each a static number (elementsPerWorker) of simulated charging stations from the total
117 Statically sized worker pool executing a static total number of simulated charging stations
120 Dynamically sized worker pool executing a static total number of simulated charging stations
122 ### Charging station configuration template
124 **src/assets/station-templates/\<name\>.json**:
126 | Key | Value(s) | Default Value | Value type | Description |
127 | ---------------------------------- | ------------- | ----------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
128 | supervisionUrls | | [] | string \| string[] | string or array of connection URIs to OCPP-J servers |
129 | supervisionUser | | undefined | string | basic HTTP authentication user to OCPP-J server |
130 | supervisionPassword | | undefined | string | basic HTTP authentication password to OCPP-J server |
131 | supervisionUrlOcppConfiguration | true/false | false | boolean | allow supervision URL configuration via a vendor OCPP parameter key |
132 | supervisionUrlOcppKey | | 'ConnectionUrl' | string | the vendor string that will be used as a vendor OCPP parameter key to set the supervision URL |
133 | ocppVersion | 1.6/2.0/2.0.1 | 1.6 | string | OCPP version |
134 | ocppProtocol | json | json | string | OCPP protocol |
135 | ocppStrictCompliance | true/false | false | boolean | strict adherence to the OCPP version and protocol specifications |
136 | ocppPersistentConfiguration | true/false | true | boolean | enable persistent OCPP parameters storage by charging stations 'hashId'. The persistency is ensured by the charging stations configuration files in [dist/assets/configurations](dist/assets/configurations) |
137 | stationInfoPersistentConfiguration | true/false | true | boolean | enable persistent station information and specifications storage by charging stations 'hashId'. The persistency is ensured by the charging stations configuration files in [dist/assets/configurations](dist/assets/configurations) |
138 | wsOptions | | {} | ClientOptions & ClientRequestArgs | [ws](https://github.com/websockets/ws) and node.js [http](https://nodejs.org/api/http.html) clients options intersection |
139 | authorizationFile | | undefined | string | RFID tags list file relative to src/assets path |
140 | baseName | | undefined | string | base name to build charging stations id |
141 | nameSuffix | | undefined | string | name suffix to build charging stations id |
142 | fixedName | true/false | false | boolean | use the baseName as the charging stations unique name |
143 | chargePointModel | | undefined | string | charging stations model |
144 | chargePointVendor | | undefined | string | charging stations vendor |
145 | chargePointSerialNumberPrefix | | undefined | string | charge point serial number prefix |
146 | chargeBoxSerialNumberPrefix | | undefined | string | charge box serial number prefix (deprecated in OCPP 1.6) |
147 | firmwareVersionPattern | | Semantic versionning regular expression: https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string | string | charging stations firmware version pattern |
148 | firmwareVersion | | undefined | string | charging stations firmware version |
149 | power | | | float \| float[] | charging stations maximum power value(s) |
150 | powerSharedByConnectors | true/false | false | boolean | charging stations power shared by its connectors |
151 | powerUnit | W/kW | W | string | charging stations power unit |
152 | currentOutType | AC/DC | AC | string | charging stations current out type |
153 | voltageOut | | AC:230/DC:400 | integer | charging stations voltage out |
154 | numberOfPhases | 0/1/3 | AC:3/DC:0 | integer | charging stations number of phase(s) |
155 | numberOfConnectors | | | integer \| integer[] | charging stations number of connector(s) |
156 | useConnectorId0 | true/false | true | boolean | use connector id 0 definition from the charging station configuration template |
157 | randomConnectors | true/false | false | boolean | randomize runtime connector id affectation from the connector id definition in charging station configuration template |
158 | resetTime | | 60 | integer | seconds to wait before the charging stations come back at reset |
159 | autoRegister | true/false | false | boolean | set charging stations as registered at boot notification for testing purpose |
160 | autoReconnectMaxRetries | | -1 (unlimited) | integer | connection retries to the OCPP-J server |
161 | reconnectExponentialDelay | true/false | false | boolean | connection delay retry to the OCPP-J server |
162 | registrationMaxRetries | | -1 (unlimited) | integer | charging stations boot notification retries |
163 | amperageLimitationOcppKey | | undefined | string | charging stations OCPP parameter key used to set the amperage limit, per phase for each connector on AC and global for DC |
164 | amperageLimitationUnit | A/cA/dA/mA | A | string | charging stations amperage limit unit |
165 | enableStatistics | true/false | false | boolean | enable charging stations statistics |
166 | mustAuthorizeAtRemoteStart | true/false | true | boolean | always send authorize at remote start transaction when AuthorizeRemoteTxRequests is enabled |
167 | payloadSchemaValidation | true/false | true | boolean | validate OCPP commands PDU against [OCA](https://www.openchargealliance.org/) JSON schemas |
168 | beginEndMeterValues | true/false | false | boolean | enable Transaction.{Begin,End} MeterValues |
169 | outOfOrderEndMeterValues | true/false | false | boolean | send Transaction.End MeterValues out of order. Need to relax OCPP specifications strict compliance ('ocppStrictCompliance' parameter) |
170 | meteringPerTransaction | true/false | true | boolean | enable metering history on a per transaction basis |
171 | transactionDataMeterValues | true/false | false | boolean | enable transaction data MeterValues at stop transaction |
172 | mainVoltageMeterValues | true/false | true | boolean | include charging stations main voltage MeterValues on three phased charging stations |
173 | phaseLineToLineVoltageMeterValues | true/false | true | boolean | include charging stations line to line voltage MeterValues on three phased charging stations |
174 | customValueLimitationMeterValues | true/false | true | boolean | enable limitation on custom fluctuated value in MeterValues |
175 | commandsSupport | | {<br />"incomingCommands": {},<br />"outgoingCommands": {}<br />} | {<br /> incomingCommands: Record<IncomingRequestCommand, boolean>;<br />outgoingCommands?: Record<RequestCommand, boolean>;<br />} | Configuration section for OCPP commands support. Empty section or subsections means all implemented OCPP commands are supported |
176 | messageTriggerSupport | | {} | Record<MessageTrigger, boolean> | Configuration section for OCPP commands trigger support. Empty section means all implemented OCPP trigger commands are supported |
177 | Configuration | | | ChargingStationConfiguration | charging stations OCPP parameters configuration section |
178 | AutomaticTransactionGenerator | | | AutomaticTransactionGenerator | charging stations ATG configuration section |
179 | Connectors | | | Connectors | charging stations connectors configuration section |
181 #### Configuration section
185 "configurationKey": [
188 "key": "StandardKey",
190 "value": "StandardValue",
198 "value": "VendorValue",
207 #### AutomaticTransactionGenerator section
209 Section type definition:
212 type AutomaticTransactionGeneratorConfiguration = {
216 minDelayBetweenTwoTransactions: number;
217 maxDelayBetweenTwoTransactions: number;
218 probabilityOfStart: number;
219 stopAfterHours: number;
220 stopOnConnectionFailure: boolean;
221 requireAuthorize?: boolean;
222 idTagDistribution?: 'random' | 'round-robin' | 'connector-affinity';
229 "AutomaticTransactionGenerator": {
233 "minDelayBetweenTwoTransactions": 15,
234 "maxDelayBetweenTwoTransactions": 30,
235 "probabilityOfStart": 1,
236 "stopAfterHours": 0.3,
237 "stopOnConnectionFailure": true,
238 "requireAuthorize": true,
239 "idTagDistribution": "random"
243 #### Connectors section
249 "bootStatus": "Available",
254 "measurand": "Power.Active.Import",
257 "fluctuationPercent": "10"
262 "measurand": "Current.Import"
274 ### Charging station configuration
276 **dist/assets/configurations/\<hashId\>.json**:
278 The charging station configuration file is automatically generated at startup from the charging station configuration template file and is persistent.
280 The charging station configuration file content can be regenerated partially on matching charging station configuration template file changes. The charging station serial number is kept unchanged.
282 #### stationInfo section
284 The syntax is similar to charging station configuration template with some added fields like the charging station id (name) and the 'Configuration' section removed.
286 #### configurationKey section
288 The syntax is similar to the charging station configuration template 'Configuration' section.
292 In the [docker](./docker) folder:
298 Or with the optional git submodules:
301 make SUBMODULES_INIT=true
304 ## OCPP-J commands supported
310 - :white_check_mark: Authorize
311 - :white_check_mark: BootNotification
312 - :white_check_mark: ChangeAvailability
313 - :white_check_mark: ChangeConfiguration
314 - :white_check_mark: ClearCache
315 - :white_check_mark: DataTransfer
316 - :white_check_mark: GetConfiguration
317 - :white_check_mark: Heartbeat
318 - :white_check_mark: MeterValues
319 - :white_check_mark: RemoteStartTransaction
320 - :white_check_mark: RemoteStopTransaction
321 - :white_check_mark: Reset
322 - :white_check_mark: StartTransaction
323 - :white_check_mark: StatusNotification
324 - :white_check_mark: StopTransaction
325 - :white_check_mark: UnlockConnector
327 #### Firmware Management Profile
329 - :white_check_mark: GetDiagnostics
330 - :white_check_mark: DiagnosticsStatusNotification
331 - :white_check_mark: FirmwareStatusNotification
332 - :white_check_mark: UpdateFirmware
334 #### Local Auth List Management Profile
336 - :x: GetLocalListVersion
339 #### Reservation Profile
341 - :x: CancelReservation
344 #### Smart Charging Profile
346 - :white_check_mark: ClearChargingProfile
347 - :x: GetCompositeSchedule
348 - :white_check_mark: SetChargingProfile
350 #### Remote Trigger Profile
352 - :white_check_mark: TriggerMessage
354 ## OCPP-J standard parameters supported
356 All kind of OCPP parameters are supported in a charging station configuration or a charging station configuration template file. The list here mention the standard ones also handled automatically in the simulator.
362 - :white_check_mark: AuthorizeRemoteTxRequests (type: boolean) (units: -)
363 - :x: ClockAlignedDataInterval (type: integer) (units: seconds)
364 - :white_check_mark: ConnectionTimeOut (type: integer) (units: seconds)
365 - :x: GetConfigurationMaxKeys (type: integer) (units: -)
366 - :white_check_mark: HeartbeatInterval (type: integer) (units: seconds)
367 - :x: LocalAuthorizeOffline (type: boolean) (units: -)
368 - :x: LocalPreAuthorize (type: boolean) (units: -)
369 - :x: MeterValuesAlignedData (type: CSL) (units: -)
370 - :white_check_mark: MeterValuesSampledData (type: CSL) (units: -)
371 - :white_check_mark: MeterValueSampleInterval (type: integer) (units: seconds)
372 - :white_check_mark: NumberOfConnectors (type: integer) (units: -)
373 - :x: ResetRetries (type: integer) (units: times)
374 - :white_check_mark: ConnectorPhaseRotation (type: CSL) (units: -)
375 - :x: StopTransactionOnEVSideDisconnect (type: boolean) (units: -)
376 - :x: StopTransactionOnInvalidId (type: boolean) (units: -)
377 - :x: StopTxnAlignedData (type: CSL) (units: -)
378 - :x: StopTxnSampledData (type: CSL) (units: -)
379 - :white_check_mark: SupportedFeatureProfiles (type: CSL) (units: -)
380 - :x: TransactionMessageAttempts (type: integer) (units: times)
381 - :x: TransactionMessageRetryInterval (type: integer) (units: seconds)
382 - :x: UnlockConnectorOnEVSideDisconnect (type: boolean) (units: -)
383 - :white_check_mark: WebSocketPingInterval (type: integer) (units: seconds)
385 #### Firmware Management Profile
389 #### Local Auth List Management Profile
391 - :white_check_mark: LocalAuthListEnabled (type: boolean) (units: -)
392 - :x: LocalAuthListMaxLength (type: integer) (units: -)
393 - :x: SendLocalListMaxLength (type: integer) (units: -)
395 #### Reservation Profile
399 #### Smart Charging Profile
401 - :x: ChargeProfileMaxStackLevel (type: integer) (units: -)
402 - :x: ChargingScheduleAllowedChargingRateUnit (type: CSL) (units: -)
403 - :x: ChargingScheduleMaxPeriods (type: integer) (units: -)
404 - :x: MaxChargingProfilesInstalled (type: integer) (units: -)
406 #### Remote Trigger Profile
412 Protocol to control the simulator via a Websocket or HTTP server.
416 To learn how to use the HTTP protocol to pilot the simulator, an [Insomnia](https://insomnia.rest/) HTTP requests collection is available in [src/assets/ui-protocol](./src/assets/ui-protocol) directory.
418 ### Websocket Protocol
420 SRPC protocol over Websocket. PDU stands for 'Protocol Data Unit'.
423 [`uuid`, `ProcedureName`, `PDU`]
424 `uuid`: String uniquely representing this request
425 `ProcedureName`: The procedure to run on the simulator
426 `PDU`: The parameters for said procedure
430 `uuid`: String uniquely linking the response to the request
431 `PDU`: Response parameters to requested procedure
433 An [Insomnia](https://insomnia.rest/) WebSocket requests collection is available in [src/assets/ui-protocol](./src/assets/ui-protocol) directory.
437 Set the Websocket header _Sec-Websocket-Protocol_ to `ui0.0.1`.
441 ###### Start Simulator
444 `ProcedureName`: 'startSimulator'
449 `status`: 'success' | 'failure'
452 ###### Stop Simulator
455 `ProcedureName`: 'stopSimulator'
460 `status`: 'success' | 'failure'
463 ###### List Charging Stations
466 `ProcedureName`: 'listChargingStations'
471 `status`: 'success' | 'failure',
472 `chargingStations`: ChargingStationData[]
475 ###### Start Charging Station
478 `ProcedureName`: 'startChargingStation'
480 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations)
485 `status`: 'success' | 'failure',
486 `hashIdsSucceeded`: charging station unique identifier strings array,
487 `hashIdsFailed`: charging station unique identifier strings array (optional)
488 `responsesFailed`: failed responses payload array (optional)
491 ###### Stop Charging Station
494 `ProcedureName`: 'stopChargingStation'
496 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations)
501 `status`: 'success' | 'failure',
502 `hashIdsSucceeded`: charging station unique identifier strings array,
503 `hashIdsFailed`: charging station unique identifier strings array (optional),
504 `responsesFailed`: failed responses payload array (optional)
507 ###### Open Connection
510 `ProcedureName`: 'openConnection'
512 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations)
517 `status`: 'success' | 'failure',
518 `hashIdsSucceeded`: charging station unique identifier strings array,
519 `hashIdsFailed`: charging station unique identifier strings array (optional),
520 `responsesFailed`: failed responses payload array (optional)
523 ###### Close Connection
526 `ProcedureName`: 'closeConnection'
528 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations)
533 `status`: 'success' | 'failure',
534 `hashIdsSucceeded`: charging station unique identifier strings array,
535 `hashIdsFailed`: charging station unique identifier strings array (optional),
536 `responsesFailed`: failed responses payload array (optional)
539 ###### Start Automatic Transaction Generator
542 `ProcedureName`: 'startAutomaticTransactionGenerator'
544 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations),
545 `connectorIds`: connector id integer array (optional, default: all connectors)
550 `status`: 'success' | 'failure',
551 `hashIdsSucceeded`: charging station unique identifier strings array,
552 `hashIdsFailed`: charging station unique identifier strings array (optional),
553 `responsesFailed`: failed responses payload array (optional)
556 ###### Stop Automatic Transaction Generator
559 `ProcedureName`: 'stopAutomaticTransactionGenerator'
561 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations),
562 `connectorIds`: connector id integer array (optional, default: all connectors)
567 `status`: 'success' | 'failure',
568 `hashIdsSucceeded`: charging station unique identifier strings array,
569 `hashIdsFailed`: charging station unique identifier strings array (optional),
570 `responsesFailed`: failed responses payload array (optional)
573 ###### OCPP commands trigger
576 `ProcedureName`: 'commandName' (the OCPP command name in camel case)
578 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations),
580 } (the OCPP command payload with some optional fields added to target the simulated charging stations)
584 `status`: 'success' | 'failure',
585 `hashIdsSucceeded`: charging station unique identifier strings array,
586 `hashIdsFailed`: charging station unique identifier strings array (optional),
587 `responsesFailed`: failed responses payload array (optional)
592 - **Start Transaction**
595 `ProcedureName`: 'startTransaction'
597 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations),
598 `connectorId`: connector id integer,
599 `idTag`: RFID tag string
604 `status`: 'success' | 'failure',
605 `hashIdsSucceeded`: charging station unique identifier strings array,
606 `hashIdsFailed`: charging station unique identifier strings array (optional),
607 `responsesFailed`: failed responses payload array (optional)
610 - **Stop Transaction**
613 `ProcedureName`: 'stopTransaction'
615 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations),
616 `transactionId`: transaction id integer
621 `status`: 'success' | 'failure',
622 `hashIdsSucceeded`: charging station unique identifier strings array,
623 `hashIdsFailed`: charging station unique identifier strings array (optional),
624 `responsesFailed`: failed responses payload array (optional)
627 - **Status Notification**
630 `ProcedureName`: 'statusNotification'
632 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations),
633 `connectorId`: connector id integer,
634 `errorCode`: connector error code,
635 `status`: connector status
640 `status`: 'success' | 'failure',
641 `hashIdsSucceeded`: charging station unique identifier strings array,
642 `hashIdsFailed`: charging station unique identifier strings array (optional),
643 `responsesFailed`: failed responses payload array (optional)
649 `ProcedureName`: 'heartbeat'
651 `hashIds`: charging station unique identifier strings array (optional, default: all charging stations),
656 `status`: 'success' | 'failure',
657 `hashIdsSucceeded`: charging station unique identifier strings array,
658 `hashIdsFailed`: charging station unique identifier strings array (optional),
659 `responsesFailed`: failed responses payload array (optional)
662 ## Support, Feedback, Contributing
664 This project is open to feature requests/suggestions, bug reports etc. via [GitHub issues](https://github.com/SAP/e-mobility-charging-stations-simulator/issues). Contribution and feedback are encouraged and always welcome. For more information about how to contribute, the project structure, as well as additional contribution information, see our [Contribution Guidelines](CONTRIBUTING.md).
668 We as members, contributors, and leaders pledge to make participation in our community a harassment-free experience for everyone. By participating in this project, you agree to abide by its [Code of Conduct](CODE_OF_CONDUCT.md) at all times.
672 Copyright 2020-2022 SAP SE or an SAP affiliate company and e-mobility-charging-stations-simulator contributors. Please see our [LICENSE](LICENSE) for copyright and license information. Detailed information including third-party components and their licensing/copyright information is available [via the REUSE tool](https://api.reuse.software/info/github.com/SAP/e-mobility-charging-stations-simulator).