MongoDB WebAPI Example does not work

[xBaaDf00d]

Description

Following these instructions led to I am running dot net 8 on my Mac.

### System.NotSupportedException: JsonTypeInfo metadata for type 'System.Collections.Generic.List1[BookStore.Models.BookModel]' was not provided by TypeInfoResolver of type '[]'. If using source generation, ensure that all root types passed to the serializer have been annotated with 'JsonSerializableAttribute', along with any types that might be serialized polymorphically. at System.Text.Json.ThrowHelper.ThrowNotSupportedException_NoMetadataForType(Type type, IJsonTypeInfoResolver resolver) at System.Text.Json.JsonSerializerOptions.GetTypeInfoInternal(Type type, Boolean ensureConfigured, Nullable1 ensureNotNull, Boolean resolveIfMutable, Boolean fallBackToNearestAncestorType) at System.Text.Json.JsonSerializerOptions.GetTypeInfo(Type type) at Microsoft.AspNetCore.Mvc.Formatters.SystemTextJsonOutputFormatter.WriteResponseBodyAsync(OutputFormatterWriteContext context, Encoding selectedEncoding) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeResultAsync>g__Logged|22_0(ResourceInvoker invoker, IActionResult result) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResultFilterAsync>g__Awaited|30_0[TFilter,TFilterAsync](ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext[TFilter,TFilterAsync](State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeResultFilters() --- End of stack trace from previous location --- ### When attempting, to test. Its as though the BSon Serializer Fails to serialise out the list of modes on the Get call, Fails at this level it wont get anywhere

Page URL

https://learn.microsoft.com/en-us/aspnet/core/tutorials/first-mongo-app?view=aspnetcore-9.0&tabs=visual-studio

Content source URL

https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/tutorials/first-mongo-app.md

Document ID

83a5cb3b-23bc-4f0c-cd1c-1d1ffeb1131a

Platform Id

65f2481a-2462-7f68-0aa8-570bd4557d09

Article author

@wadepickett

Metadata

• ID: 5240866d-d0a1-f0dd-7b2c-203e1d69bc4b
• PlatformId: 65f2481a-2462-7f68-0aa8-570bd4557d09
• Service: aspnet-core
• Sub-service: tutorials

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