Webapi: Problem while translating the OData groupBy request to EF Core request

Created on 10 Jan 2020 · 5Comments · Source: OData/WebApi

I'm upgrading OData and EF Core to 7.3.0 and 3.1. After doing so, i'm seeing new errors when trying to get a groupBy working. The same request did work before.

I wasn't sure if i should open an issue here or on EF Core github. If i'm wrong feel free to tell me and i'll move it.
The request that fails for me is : $apply=groupby((Actif))

Assemblies affected

Microsoft.AspNetCore.OData 7.3.0
Microsoft.EntityFrameworkCore 3.1.0

Reproduce steps

Get a project running with EF Core 3.1 and OData 7.3.0

Expected result

The result of the groupBy

Actual result

Exception is thrown :
An unhandled exception has occurred while executing the request.
System.InvalidCastException: Unable to cast object of type 'System.Boolean' to type 'Microsoft.AspNet.OData.Query.Expressions.GroupByWrapper'.
at get_NestedValue(Object )
at System.Text.Json.JsonPropertyInfoCommon4.GetValueAsObject(Object obj) at System.Text.Json.JsonSerializer.Write(Utf8JsonWriter writer, Int32 originalWriterDepth, Int32 flushThreshold, JsonSerializerOptions options, WriteStack& state) at System.Text.Json.JsonSerializer.WriteAsyncCore(Stream utf8Json, Object value, Type inputType, JsonSerializerOptions options, CancellationToken cancellationToken) at Microsoft.AspNetCore.Mvc.Formatters.SystemTextJsonOutputFormatter.WriteResponseBodyAsync(OutputFormatterWriteContext context, Encoding selectedEncoding) at Microsoft.AspNetCore.Mvc.Formatters.SystemTextJsonOutputFormatter.WriteResponseBodyAsync(OutputFormatterWriteContext context, Encoding selectedEncoding) at Microsoft.AspNetCore.Mvc.Infrastructure.ObjectResultExecutor.ExecuteAsyncEnumerable(ActionContext context, ObjectResult result, IAsyncEnumerable1 asyncEnumerable)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|29_0TFilter,TFilterAsync
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNextTFilter,TFilterAsync
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|27_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)