I have defined a report using the reporting module which accepts the location as a reporting parameter.
Now I want to fetch the report data through reporting REST from my OWA. I have made the http POST request body as follows:
{ “location”: “1” }
but from the reporting REST it is not recognized.
convertedValue is becoming null as it does fail from the type check of the parameter. How do I properly pass the location parameter from my OWA?
Does it work if you use the location uuid?
I tried it, but it did give me a another exception. 
{
"location": "8d6c993e-c2cc-11de-8d13-0010c6dffd0f"
}
Below is the response JSON which I received:
{
"error": {
"message": "[Could not write JSON: Direct self-reference leading to cycle (through reference chain: org.openmrs.module.webservices.rest.SimpleObject["context"]->org.openmrs.module.reporting.evaluation.EvaluationContext["parameterValues"]->java.util.HashMap["location"]->org.openmrs.Location["creator"]->org.openmrs.User_$$_jvstad8_50["creator"]); nested exception is org.codehaus.jackson.map.JsonMappingException: Direct self-reference leading to cycle (through reference chain: org.openmrs.module.webservices.rest.SimpleObject["context"]->org.openmrs.module.reporting.evaluation.EvaluationContext["parameterValues"]->java.util.HashMap["location"]->org.openmrs.Location["creator"]->org.openmrs.User_$$_jvstad8_50["creator"])]",
"code": "org.springframework.http.converter.json.MappingJacksonHttpMessageConverter:204",
"detail": "org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: Direct self-reference leading to cycle (through reference chain: org.openmrs.module.webservices.rest.SimpleObject["context"]->org.openmrs.module.reporting.evaluation.EvaluationContext["parameterValues"]->java.util.HashMap["location"]->org.openmrs.Location["creator"]->org.openmrs.User_$$_jvstad8_50["creator"]); nested exception is org.codehaus.jackson.map.JsonMappingException: Direct self-reference leading to cycle (through reference chain: org.openmrs.module.webservices.rest.SimpleObject["context"]->org.openmrs.module.reporting.evaluation.EvaluationContext["parameterValues"]->java.util.HashMap["location"]->org.openmrs.Location["creator"]->org.openmrs.User_$$_jvstad8_50["creator"]) at org.springframework.http.converter.json.MappingJacksonHttpMessageConverter.writeInternal(MappingJacksonHttpMessageConverter.java:204) at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:208) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.writeWithMessageConverters(AnnotationMethodHandlerAdapter.java:1044) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.handleResponseBody(AnnotationMethodHandlerAdapter.java:1002) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter$ServletHandlerMethodInvoker.getModelAndView(AnnotationMethodHandlerAdapter.java:951) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:448) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:434) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868) at javax.servlet.http.HttpServlet.service(HttpServlet.java:650) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.openmrs.module.web.filter.ForcePasswordChangeFilter.doFilter(ForcePasswordChangeFilter.java:60) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:72) at org.openmrs.web.filter.GZIPFilter.doFilterInternal(GZIPFilter.java:64) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:70) at org.openmrs.module.webservices.rest.web.filter.AuthorizationFilter.doFilter(AuthorizationFilter.java:104) at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:70) at org.springframework.web.filter.ShallowEtagHeaderFilter.doFilterInternal(ShallowEtagHeaderFilter.java:82) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:70) at org.openmrs.module.owa.filter.OwaFilter.doFilter(OwaFilter.java:57) at org.openmrs.module.web.filter.ModuleFilterChain.doFilter(ModuleFilterChain.java:70) at org.openmrs.module.web.filter.ModuleFilter.doFilter(ModuleFilter.java:54) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.openmrs.web.filter.OpenmrsFilter.doFilterInternal(OpenmrsFilter.java:108) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:150) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:105) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:105) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.openmrs.web.filter.StartupFilter.doFilter(StartupFilter.java:105) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Caused by: org.codehaus.jackson.map.JsonMappingException: Direct self-reference leading to cycle (through reference chain: org.openmrs.module.webservices.rest.SimpleObject["context"]->org.openmrs.module.reporting.evaluation.EvaluationContext["parameterValues"]->java.util.HashMap["location"]->org.openmrs.Location["creator"]->org.openmrs.User_$$_jvstad8_50["creator"]) at org.codehaus.jackson.map.ser.BeanPropertyWriter._reportSelfReference(BeanPropertyWriter.java:491) at org.codehaus.jackson.map.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:429) at org.codehaus.jackson.map.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:150) at org.codehaus.jackson.map.ser.BeanSerializer.serialize(BeanSerializer.java:112) at org.codehaus.jackson.map.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:446) at org.codehaus.jackson.map.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:150) at org.codehaus.jackson.map.ser.BeanSerializer.serialize(BeanSerializer.java:112) at org.codehaus.jackson.map.ser.std.MapSerializer.serializeFields(MapSerializer.java:262) at org.codehaus.jackson.map.ser.std.MapSerializer.serialize(MapSerializer.java:186) at org.codehaus.jackson.map.ser.std.MapSerializer.serialize(MapSerializer.java:23) at org.codehaus.jackson.map.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:446) at org.codehaus.jackson.map.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:150) at org.codehaus.jackson.map.ser.BeanSerializer.serialize(BeanSerializer.java:112) at org.codehaus.jackson.map.ser.std.MapSerializer.serializeFields(MapSerializer.java:262) at org.codehaus.jackson.map.ser.std.MapSerializer.serialize(MapSerializer.java:186) at org.codehaus.jackson.map.ser.std.MapSerializer.serialize(MapSerializer.java:23) at org.codehaus.jackson.map.ser.StdSerializerProvider._serializeValue(StdSerializerProvider.java:610) at org.codehaus.jackson.map.ser.StdSerializerProvider.serializeValue(StdSerializerProvider.java:256) at org.codehaus.jackson.map.ObjectMapper.writeValue(ObjectMapper.java:1613) at org.springframework.http.converter.json.MappingJacksonHttpMessageConverter.writeInternal(MappingJacksonHttpMessageConverter.java:201) ... 67 more "
}
}
BTW; this particular report doesn’t have any results in my db. But I don’t think it should return this exception when there is no results in my report. If you would like to try, you can try it on qa-reff app (which is unfortunately inaccessible for me from Sri Lanka) 
@judeniroshan, could you please create an issue in JIRA and work on it? Start from writing a test case in the reporting-rest module.
Hi @raff, apologies for not creating a issue earlier. Here is the issue: https://issues.openmrs.org/browse/REPORT-819