# Audit Event Service: Query API - Implementation Guide ePA Basisfunktionalitäten v1.3.2

Implementation Guide

ePA Basisfunktionalitäten

Version 1.3.2 - release 

* [**Table of Contents**](toc.md)
* [**Basisdienst Audit Event Service**](api-audit.md)
* **Audit Event Service: Query API**

## Audit Event Service: Query API

Die **Query API: AuditEvent** ermöglicht den Abruf protokollierter Ereignisse und Zugriffe auf das Aktenkonto eines Versicherten im ePA-Aktensystem.

### Einsatzbereich

Das ePA-FdV oder das ePA-Client-System einer Ombudsstelle nehmen Einsicht in die Protokolldaten zum Zwecke der Datenschutzkontrolle für den Akteninhaber.

### Nachricht

Die Nachricht zum Abruf von Protkolldaten wird als HTTP GET-Anfrage an den Audit Event Service gesendet, um eine Liste von *Audit*-Ereignislisten abzurufen.

#### Auslösung

Wenn das ePA-FdV oder ePA-Client-System eine Suche über protokollierte Ereignisse und ePA-Zugriffe durchführen und dazu die korrespondierenden **AuditEvent**-Ressourcen ermitteln möchte, sendet es eine **Query API: AuditEvent**-Nachricht an den Audit Event Service.

#### Resource API

Anfragen an die *AuditEvent*-Ressource werden über die RESTful API mittels HTTP GET-Anfragen durchgeführt werden. Dabei können spezifische Suchparameter genutzt werden, um die Anfragen zu verfeinern.

Bei Anfragen an die Query API für die *AuditEvent*-Ressource wird die Antwort als ein FHIR Bundle des Typs *searchset* zurückgegeben. Dieses Bundle enthält eine Sammlung von Einträgen, die jeweils eine Instanz der *AuditEvent*-Ressource enthalten.

```

      {"resourceType":"CapabilityStatement","id":"epa-audit-event-server","meta":{"profile":["https://gematik.de/fhir/ti/StructureDefinition/ti-capability-statement"]},"extension":[{"extension":[{"url":"name","valueString":"X-Request-ID"},{"url":"type","valueString":"string"},{"url":"description","valueString":"UUID of the request message"},{"url":"format","valueString":"uuid"},{"url":"required","valueBoolean":true}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-header"},{"extension":[{"url":"name","valueString":"x-insurantid"},{"url":"type","valueString":"string"},{"url":"description","valueString":"Health Record Identifier"},{"url":"pattern","valueString":"^[A-Z]{1}\\d{9}$"},{"url":"required","valueBoolean":true}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-header"},{"extension":[{"url":"name","valueString":"x-useragent"},{"url":"type","valueString":"string"},{"url":"description","valueString":"user agent information"},{"url":"pattern","valueString":"^[a-zA-Z0-9]{20}\\/[a-zA-Z0-9\\-\\.]{1,15}$"},{"url":"required","valueBoolean":true}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-header"},{"extension":[{"url":"statusCode","valueString":"403"},{"url":"description","valueString":"Requestor not authorized (no user session with valid ID-Token available)"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"invalAuth"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"403"},{"url":"description","valueString":"Requestor has no valid entitlement"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"notEntitled"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"403"},{"url":"description","valueString":"Requestor role is not in the list of allowed user groups"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"invalidOid"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"403"},{"url":"description","valueString":"Device registration does not exist (if requestor role is oid_versicherter only)"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"unregisteredDevice"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"404"},{"url":"description","valueString":"Health record is in state UNKNOWN or INITIALIZED"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"noHealthRecord"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"409"},{"url":"description","valueString":"Request conflicts with the current state of the health record"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"statusMismatch"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"500"},{"url":"description","valueString":"Any other error"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"internalError"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-base-url","valueString":"http://epa4all/epa/audit/api/v1/fhir"}],"url":"https://gematik.de/fhir/epa/CapabilityStatement/epa-audit-event-server","version":"1.3.2","name":"EPAAuditEventServer","title":"EPA Capability Statement für den Audit Event Service","status":"active","date":"2026-07-15","publisher":"gematik GmbH","contact":[{"telecom":[{"system":"url","value":"https://www.gematik.de"}]}],"description":"EPA Capability Statement für den Audit Event Service","jurisdiction":[{"coding":[{"system":"urn:iso:std:iso:3166","code":"DE"}]}],"copyright":"gematik GmbH / Dieser Implementation Guide ist lizenziert unter [Apache License](./license.html), Version 2.0.","kind":"requirements","imports":["https://gematik.de/fhir/epa/CapabilityStatement/epa-basic-server"],"_imports":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}]}],"fhirVersion":"4.0.1","format":["application/fhir+json","application/fhir+xml"],"rest":[{"mode":"server","resource":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"type":"AuditEvent","profile":"https://gematik.de/fhir/epa/StructureDefinition/epa-auditevent","supportedProfile":["https://gematik.de/fhir/epa/StructureDefinition/epa-auditevent"],"_supportedProfile":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}]}],"interaction":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"},{"extension":[{"url":"statusCode","valueString":"200"},{"url":"description","valueString":"Successful operation"},{"url":"responseType","valueString":"Bundle"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"400"},{"url":"description","valueString":"Unknown search parameter"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_PARAM_UNKNOWN"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"400"},{"url":"description","valueString":"Invalid query parameter(s)"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_BAD_SYNTAX"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"400"},{"url":"description","valueString":"Invalid request"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_BAD_FORMAT"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"404"},{"url":"description","valueString":"Unknown resource type"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_UNKNOWN_TYPE"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"}],"code":"search-type"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"},{"extension":[{"url":"statusCode","valueString":"200"},{"url":"description","valueString":"Successful operation"},{"url":"responseType","valueString":"EPAAuditEvent"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"400"},{"url":"description","valueString":"Invalid request"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_BAD_FORMAT"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"404"},{"url":"description","valueString":"Unknown resource type"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_UNKNOWN_TYPE"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"404"},{"url":"description","valueString":"Resource is not known"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_RESOURCE_ID_FAIL"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"}],"code":"read"}],"searchParam":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"_id","definition":"http://hl7.org/fhir/SearchParameter/Resource-id","type":"token","documentation":"Resource.id"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"_lastUpdated","definition":"http://hl7.org/fhir/SearchParameter/Resource-lastUpdated","type":"date","documentation":"Resource.meta.lastUpdated"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"action","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-action","type":"token","documentation":"AuditEvent.action"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"altid","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-altid","type":"token","documentation":"AuditEvent.agent.altId"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"date","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-date","type":"date","documentation":"AuditEvent.recorded"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"outcome","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-outcome","type":"token","documentation":"AuditEvent.outcome"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"entity-name","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-entity-name","type":"string","documentation":"AuditEvent.entity.name"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"agent-name","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-agent-name","type":"string","documentation":"AuditEvent.agent.name"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"type","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-type","type":"token","documentation":"AuditEvent.type"}]}]}]}
    
```

funkt. Eignung: Test Produkt/FADer Audit Event Service MUSS die Suchparameter, die in dem
*[CapabilityStatement](./CapabilityStatement-epa-audit-event-server.md)*mit dem Namen
*EPAAuditEventServer*verarbeiten können.

funkt. Eignung: Test Produkt/FADie Standardsortierung des Audit Event Service MUSS anhand des Attributs
*recorded*in absteigender Reihenfolge, sodass die neuesten Daten zuerst angezeigt werden.
#### Instance API

Um spezifische Details zu einem einzelnen Ereignis mittels der RESTful API zu erhalten, wird die **AuditEvent Instance API** verwendet, indem eine HTTP GET-Anfrage an den Endpunkt */AuditEvent/[id]* gestellt wird.

```

      {"resourceType":"CapabilityStatement","id":"epa-audit-event-server","meta":{"profile":["https://gematik.de/fhir/ti/StructureDefinition/ti-capability-statement"]},"extension":[{"extension":[{"url":"name","valueString":"X-Request-ID"},{"url":"type","valueString":"string"},{"url":"description","valueString":"UUID of the request message"},{"url":"format","valueString":"uuid"},{"url":"required","valueBoolean":true}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-header"},{"extension":[{"url":"name","valueString":"x-insurantid"},{"url":"type","valueString":"string"},{"url":"description","valueString":"Health Record Identifier"},{"url":"pattern","valueString":"^[A-Z]{1}\\d{9}$"},{"url":"required","valueBoolean":true}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-header"},{"extension":[{"url":"name","valueString":"x-useragent"},{"url":"type","valueString":"string"},{"url":"description","valueString":"user agent information"},{"url":"pattern","valueString":"^[a-zA-Z0-9]{20}\\/[a-zA-Z0-9\\-\\.]{1,15}$"},{"url":"required","valueBoolean":true}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-header"},{"extension":[{"url":"statusCode","valueString":"403"},{"url":"description","valueString":"Requestor not authorized (no user session with valid ID-Token available)"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"invalAuth"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"403"},{"url":"description","valueString":"Requestor has no valid entitlement"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"notEntitled"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"403"},{"url":"description","valueString":"Requestor role is not in the list of allowed user groups"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"invalidOid"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"403"},{"url":"description","valueString":"Device registration does not exist (if requestor role is oid_versicherter only)"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"unregisteredDevice"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"404"},{"url":"description","valueString":"Health record is in state UNKNOWN or INITIALIZED"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"noHealthRecord"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"409"},{"url":"description","valueString":"Request conflicts with the current state of the health record"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"statusMismatch"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"500"},{"url":"description","valueString":"Any other error"},{"url":"responseType","valueString":"application/json"},{"url":"errorCode","valueString":"internalError"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-base-url","valueString":"http://epa4all/epa/audit/api/v1/fhir"}],"url":"https://gematik.de/fhir/epa/CapabilityStatement/epa-audit-event-server","version":"1.3.2","name":"EPAAuditEventServer","title":"EPA Capability Statement für den Audit Event Service","status":"active","date":"2026-07-15","publisher":"gematik GmbH","contact":[{"telecom":[{"system":"url","value":"https://www.gematik.de"}]}],"description":"EPA Capability Statement für den Audit Event Service","jurisdiction":[{"coding":[{"system":"urn:iso:std:iso:3166","code":"DE"}]}],"copyright":"gematik GmbH / Dieser Implementation Guide ist lizenziert unter [Apache License](./license.html), Version 2.0.","kind":"requirements","imports":["https://gematik.de/fhir/epa/CapabilityStatement/epa-basic-server"],"_imports":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}]}],"fhirVersion":"4.0.1","format":["application/fhir+json","application/fhir+xml"],"rest":[{"mode":"server","resource":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"type":"AuditEvent","profile":"https://gematik.de/fhir/epa/StructureDefinition/epa-auditevent","supportedProfile":["https://gematik.de/fhir/epa/StructureDefinition/epa-auditevent"],"_supportedProfile":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}]}],"interaction":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"},{"extension":[{"url":"statusCode","valueString":"200"},{"url":"description","valueString":"Successful operation"},{"url":"responseType","valueString":"Bundle"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"400"},{"url":"description","valueString":"Unknown search parameter"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_PARAM_UNKNOWN"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"400"},{"url":"description","valueString":"Invalid query parameter(s)"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_BAD_SYNTAX"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"400"},{"url":"description","valueString":"Invalid request"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_BAD_FORMAT"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"404"},{"url":"description","valueString":"Unknown resource type"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_UNKNOWN_TYPE"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"}],"code":"search-type"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"},{"extension":[{"url":"statusCode","valueString":"200"},{"url":"description","valueString":"Successful operation"},{"url":"responseType","valueString":"EPAAuditEvent"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"400"},{"url":"description","valueString":"Invalid request"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_BAD_FORMAT"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"404"},{"url":"description","valueString":"Unknown resource type"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_UNKNOWN_TYPE"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"},{"extension":[{"url":"statusCode","valueString":"404"},{"url":"description","valueString":"Resource is not known"},{"url":"responseType","valueString":"TIOperationOutcome"},{"url":"errorCode","valueString":"MSG_RESOURCE_ID_FAIL"}],"url":"https://gematik.de/fhir/ti/StructureDefinition/extension-http-response-info"}],"code":"read"}],"searchParam":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"_id","definition":"http://hl7.org/fhir/SearchParameter/Resource-id","type":"token","documentation":"Resource.id"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"_lastUpdated","definition":"http://hl7.org/fhir/SearchParameter/Resource-lastUpdated","type":"date","documentation":"Resource.meta.lastUpdated"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"action","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-action","type":"token","documentation":"AuditEvent.action"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"altid","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-altid","type":"token","documentation":"AuditEvent.agent.altId"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"date","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-date","type":"date","documentation":"AuditEvent.recorded"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"outcome","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-outcome","type":"token","documentation":"AuditEvent.outcome"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"entity-name","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-entity-name","type":"string","documentation":"AuditEvent.entity.name"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"agent-name","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-agent-name","type":"string","documentation":"AuditEvent.agent.name"},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation","valueCode":"SHALL"}],"name":"type","definition":"http://hl7.org/fhir/SearchParameter/AuditEvent-type","type":"token","documentation":"AuditEvent.type"}]}]}]}
    
```

#### Verarbeitung

Der Audit Event Service verarbeitet die Anfrage, um die **AuditEvent**-Einträge zu ermitteln, die den angegebenen Suchparametern entsprechen. Darüber hinaus gibt er einen zur Verarbeitung passenden HTTP Status Code sowie ein [FHIR Bundle](https://hl7.org/fhir/R4/bundle.html) der passenden [AuditEvent](./StructureDefinition-epa-auditevent.md)-Ressourcen zurück.

### Sicherheitsanforderungen

Generelle Sicherheitsanforderungen werden [hier](./privacy-security.md) festgehalten.

