Microsoft Dynamics 365现场服务Web API：创建工作订单会触发“代码”：“ 0x80040265”，“消息”：“需要服务帐户”

问题描述

通过HTTP POST在Microsoft Dynamics 365-现场服务（空主体）中创建新的工作订单

import requests

url = "https://{{my-env_name}}.{{my_region}}.dynamics.com/api/data/v9.0/msdyn_workorders"

payload = "{\n   \n}"
headers = {
  'Accept': 'application/json','OData-MaxVersion': '4.0','OData-Version': '4.0','If-None-Match': 'null','Authorization': 'Bearer eyXXX','Content-Type': 'application/json',}

response = requests.request("POST",url,headers=headers,data = payload)

print(response.text.encode('utf8'))

POST正文为空时收到错误

{
    "error": {
        "code": "0x80040265","message": "The Service Account is required.","innererror": {
            "message": "The Service Account is required.","type": "System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault,Microsoft.Xrm.Sdk,Version=9.0.0.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35]]","stacktrace": "   at Microsoft.Crm.Extensibility.OrganizationSdkServiceInternal.CreateInternal(Entity entity,InvocationContext invocationContext,CallerOriginToken callerOriginToken,WebServiceType serviceType,Boolean checkAdminMode,Dictionary`2 optionalParameters)\r\n

   at Microsoft.Crm.Extensibility.OData.CrmODataExecutionContext.CreateOrganizationResponse(Entity entity)\r\n

   at Microsoft.Crm.Extensibility.OData.CrmODataServiceDataProvider.CreateEdmEntity(CrmODataExecutionContext context,String edmEntityName,EdmEntityObject entityObject,Boolean isUpsert)\r\n

   at Microsoft.Crm.Extensibility.OData.EntityController.PostEntitySetImplementation(String& entitySetName,EdmEntityObject entityObject)\r\n

   at Microsoft.Crm.Extensibility.OData.CrmODataUtilities.<>c__DisplayClass10_0`2.<InvokeActionAndLogMetric>b__0()\r\n

   at Microsoft.PowerApps.CoreFramework.ActivityLoggerExtensions.Execute[TResult](ILogger logger,EventId eventId,ActivityType activityType,Func`1 func,IEnumerable`1 additionalCustomProperties)\r\n

   at Microsoft.Xrm.Telemetry.XrmTelemetryExtensions.Execute[TResult](ILogger logger,XrmTelemetryActivityType activityType,Func`1 func)\r\n

   at lambda_method(Closure,Object,Object[] )\r\n

   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance,Object[] methodParameters)\r\n

   at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext,IDictionary`2 arguments,CancellationToken cancellationToken)\r\n

--- End of stack trace from previous location where exception was thrown ---\r\n

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n
   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n

--- End of stack trace from previous location where exception was thrown ---\r\n

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n

--- End of stack trace from previous location where exception was thrown ---\r\n

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()"
        }
    }
}

我将服务帐户添加到POST正文中

查看工作单的模型：https://docs.microsoft.com/en-us/dynamics365/customer-engagement/web-api/msdyn_workorder?view=dynamics-ce-odata-9

{
  "msdyn_serviceaccount": "{{an existing account id}}"
}

当POST的正文包含msdyn_serviceaccount字段时收到错误

{
    "error": {

        "code": "0x0","message": "An error occurred while validating input parameters: Microsoft.OData.ODataException: A 'PrimitiveValue' node with non-null value was found when trying to read the value of the property 'msdyn_serviceaccount'; however,a 'StartArray' node,a 'StartObject' node,or a 'PrimitiveValue' node with null value was expected.\r\n

   at Microsoft.OData.JsonLight.ODataJsonLightPropertyAndValueDeserializer.ValidateExpandedNestedResourceInfoPropertyValue(IJsonReader jsonReader,Nullable`1 isCollection,String propertyName)\r\n

   at Microsoft.OData.JsonLight.ODataJsonLightResourceDeserializer.ReadPropertyWithValue(IODataJsonLightReaderResourceState resourceState,String propertyName,Boolean isDeltaResourceSet)\r\n

   at Microsoft.OData.JsonLight.ODataJsonLightResourceDeserializer.<>c__DisplayClass9_0.<ReadResourceContent>b__0(PropertyParsingResult propertyParsingResult,String propertyName)\r\n

   at Microsoft.OData.JsonLight.ODataJsonLightDeserializer.ProcessProperty(PropertyAndAnnotationCollector propertyAndAnnotationCollector,Func`2 readPropertyAnnotationValue,Action`2 handleProperty)\r\n

   at Microsoft.OData.JsonLight.ODataJsonLightResourceDeserializer.ReadResourceContent(IODataJsonLightReaderResourceState resourceState)\r\n

   at Microsoft.OData.JsonLight.ODataJsonLightReader.StartReadingResource()\r\n

   at Microsoft.OData.JsonLight.ODataJsonLightReader.ReadResourceSetItemStart(PropertyAndAnnotationCollector propertyAndAnnotationCollector,SelectedPropertiesNode selectedProperties)\r\n   at 

Microsoft.OData.JsonLight.ODataJsonLightReader.ReadAtStartImplementationSynchronously(PropertyAndAnnotationCollector propertyAndAnnotationCollector)\r\n 

  at Microsoft.OData.ODataReaderCore.ReadImplementation()\r\n

   at Microsoft.OData.ODataReaderCore.InterceptException[T](Func`1 action)\r\n

   at System.Web.OData.Formatter.Deserialization.ODataReaderExtensions.ReadResourceOrResourceSet(ODataReader reader)\r\n

   at System.Web.OData.Formatter.Deserialization.ODataResourceDeserializer.Read(ODataMessageReader messageReader,Type type,ODataDeserializerContext readContext)\r\n

   at System.Web.OData.Formatter.ODataMediaTypeFormatter.ReadFromStream(Type type,Stream readStream,HttpContent content,IFormatterLogger formatterLogger)","innererror": {

            "message": "An error occurred while validating input parameters: Microsoft.OData.ODataException: A 'PrimitiveValue' node with non-null value was found when trying to read the value of the property 'msdyn_serviceaccount'; however,SelectedPropertiesNode selectedProperties)\r\n

   at Microsoft.OData.JsonLight.ODataJsonLightReader.ReadAtStartImplementationSynchronously(PropertyAndAnnotationCollector propertyAndAnnotationCollector)\r\n

   at Microsoft.OData.ODataReaderCore.ReadImplementation()\r\n

   at Microsoft.OData.ODataReaderCore.InterceptException[T](Func`1 action)\r\n

   at System.Web.OData.Formatter.Deserialization.ODataReaderExtensions.ReadResourceOrResourceSet(ODataReader reader)\r\n

   at System.Web.OData.Formatter.Deserialization.ODataResourceDeserializer.Read(ODataMessageReader messageReader,"type": "Microsoft.Crm.CrmHttpException","stacktrace": "   at Microsoft.Crm.Extensibility.OData.CrmODataUtilities.ValidateInputParameters(ModelStateDictionary controllerModelState)\r\n

   at Microsoft.Crm.Extensibility.OData.EntityController.PostEntitySetImplementation(String& entitySetName,CancellationToken cancellationToken)\r\n--- End of stack trace from previous location where exception was thrown ---\r\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n

   at System.Web.Http.Controllers.ApiControllerActionInvoker.<InvokeActionAsyncCore>d__0.MoveNext()\r\n

--- End of stack trace from previous location where exception was thrown ---\r\n

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n

   at System.Web.Http.Controllers.ActionFilterResult.<ExecuteAsync>d__2.MoveNext()\r\n

--- End of stack trace from previous location where exception was thrown ---\r\n

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n

   at System.Web.Http.Dispatcher.HttpControllerDispatcher.<SendAsync>d__1.MoveNext()"
        }
    }
}

问题：Microsoft Dynamics 365现场服务的Web API期望的JSON主体是什么？

解决方法

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