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I have small app with Springboot WebFlux on OpenJDK 23. HAPI - FHIR Client to get Patient FHIR R4 resource. Here is the pom.xml
<!-- HAPI FHIR JPA Server Dependency -->
<dependency>
<groupId>ca.uhn.hapi.fhir</groupId>
<artifactId>hapi-fhir-client-okhttp</artifactId>
<version>6.2.5</version>
</dependency>
<!-- Jackson for JSON parsing -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<!-- HAPI FHIR R4 Dependency -->
<dependency>
<groupId>ca.uhn.hapi.fhir</groupId>
<artifactId>hapi-fhir-structures-r4</artifactId>
<version>6.2.5</version>
</dependency>
And here is the method which make the FHIR API Call, getPatient(), and createFhirClient() returns the fhirClient.
public Mono<Patient> getPatient() {
return Mono.deferContextual(context -> {
String labViewStateId = context.get(Constant.REQUEST_STATE_ID);
return cacheManager.get(labViewStateId, SmartApp.class)
.flatMap(smartApp -> {
if (smartApp == null) {
return Mono.error(new IllegalArgumentException("Invalid Application ID"));
}
IGenericClient fhirClient = createFhirClient(smartApp);
return Mono.fromCallable(() -> fhirClient.read()
.resource(Patient.class)
.withId(smartApp.getAuthToken().getPatientIdentifier())
.execute());
});
});
}
private IGenericClient createFhirClient(SmartApp smartApp) {
IGenericClient fhirClient = fhirContext.newRestfulGenericClient(smartApp.getIssuer());
fhirClient.registerInterceptor(new BearerTokenAuthInterceptor(smartApp.getAuthToken().getAccessToken()));
fhirClient.registerInterceptor(new LoggingInterceptor(true));
return fhirClient;
}
This code always errors with below details, any clue where the problem is? I tested with four different FHIR endpoint all fails with error except , but this is just sandbox or sample from HAPI.
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:184) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:732) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:184) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:732) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:184) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:732) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.18.2.jar:2.18.2]
Caused by: com.fasterxml.jackson.core.exc.StreamConstraintsException: Document nesting depth (1001) exceeds the maximum allowed (1000, from `StreamWriteConstraints.getMaxNestingDepth()`)
at com.fasterxml.jackson.core.StreamWriteConstraints._constructException(StreamWriteConstraints.java:177) ~[jackson-core-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.core.StreamWriteConstraints.validateNestingDepth(StreamWriteConstraints.java:162) ~[jackson-core-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.core.json.UTF8JsonGenerator.writeStartArray(UTF8JsonGenerator.java:347) ~[jackson-core-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.impl.IndexedStringListSerializer.serialize(IndexedStringListSerializer.java:76) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.impl.IndexedStringListSerializer.serialize(IndexedStringListSerializer.java:22) ~[jackson-databind-2.18.2.jar:2.18.2]
... 1019 common frames omitted
I have small app with Springboot WebFlux on OpenJDK 23. HAPI - FHIR Client to get Patient FHIR R4 resource. Here is the pom.xml
<!-- HAPI FHIR JPA Server Dependency -->
<dependency>
<groupId>ca.uhn.hapi.fhir</groupId>
<artifactId>hapi-fhir-client-okhttp</artifactId>
<version>6.2.5</version>
</dependency>
<!-- Jackson for JSON parsing -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</dependency>
<!-- HAPI FHIR R4 Dependency -->
<dependency>
<groupId>ca.uhn.hapi.fhir</groupId>
<artifactId>hapi-fhir-structures-r4</artifactId>
<version>6.2.5</version>
</dependency>
And here is the method which make the FHIR API Call, getPatient(), and createFhirClient() returns the fhirClient.
public Mono<Patient> getPatient() {
return Mono.deferContextual(context -> {
String labViewStateId = context.get(Constant.REQUEST_STATE_ID);
return cacheManager.get(labViewStateId, SmartApp.class)
.flatMap(smartApp -> {
if (smartApp == null) {
return Mono.error(new IllegalArgumentException("Invalid Application ID"));
}
IGenericClient fhirClient = createFhirClient(smartApp);
return Mono.fromCallable(() -> fhirClient.read()
.resource(Patient.class)
.withId(smartApp.getAuthToken().getPatientIdentifier())
.execute());
});
});
}
private IGenericClient createFhirClient(SmartApp smartApp) {
IGenericClient fhirClient = fhirContext.newRestfulGenericClient(smartApp.getIssuer());
fhirClient.registerInterceptor(new BearerTokenAuthInterceptor(smartApp.getAuthToken().getAccessToken()));
fhirClient.registerInterceptor(new LoggingInterceptor(true));
return fhirClient;
}
This code always errors with below details, any clue where the problem is? I tested with four different FHIR endpoint all fails with error except https://hapi.fhir./baseR4, but this is just sandbox or sample from HAPI.
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:184) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:732) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:184) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:732) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:184) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:732) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:770) ~[jackson-databind-2.18.2.jar:2.18.2]
Caused by: com.fasterxml.jackson.core.exc.StreamConstraintsException: Document nesting depth (1001) exceeds the maximum allowed (1000, from `StreamWriteConstraints.getMaxNestingDepth()`)
at com.fasterxml.jackson.core.StreamWriteConstraints._constructException(StreamWriteConstraints.java:177) ~[jackson-core-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.core.StreamWriteConstraints.validateNestingDepth(StreamWriteConstraints.java:162) ~[jackson-core-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.core.json.UTF8JsonGenerator.writeStartArray(UTF8JsonGenerator.java:347) ~[jackson-core-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.impl.IndexedStringListSerializer.serialize(IndexedStringListSerializer.java:76) ~[jackson-databind-2.18.2.jar:2.18.2]
at com.fasterxml.jackson.databind.ser.impl.IndexedStringListSerializer.serialize(IndexedStringListSerializer.java:22) ~[jackson-databind-2.18.2.jar:2.18.2]
... 1019 common frames omitted
1 Answer
Reset to default 0- List item
Instead of returning direct output of .execute() method, the Patient object output is returned and that resolved the error.
public Mono<AppPatient> getPatient() {
return Mono.deferContextual(context -> {
String labViewStateId = context.get(Constant.REQUEST_STATE_ID);
return cacheService.get(labViewStateId, SmartApp.class).cast(SmartApp.class)
.flatMap(smartApp -> {
if (smartApp == null) {
return Mono.error(new IllegalArgumentException("Invalid Application ID"));
}
IGenericClient fhirClient = createFhirClient(smartApp);
return Mono.fromCallable(() -> {
Patient patient = fhirClient.read()
.resource(Patient.class)
.withId(smartApp.getAuthToken().getPatientIdentifier())
.execute();
AppPatient appPatient = PatientProcessor.convertToAppPatient(patient);
return appPatient;
});
});
});
}
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