Add to Problem details

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Any writer registered before the call to the AddProblemDetails will be evaluated before the DefaultProblemDetailsWrapper

I had to register my custom IProblemDetailsWriter before the call to AddRazorPages AND the call to AddProblemDetails for it to be evaluated before the DefaultProblemDetailsWriter.

@zwoolli If I am not mistaken AddRazorPages probably calls AddMVCCore (need to double check) that register a default writer for API Controllers. I believe your case the problem is not the DefaultProblemDetailsWriter but the DefaultApiProblemDetailsWriter. In both cases you are right and AddProblemDetails must be called before.

@Rick-Anderson maybe we could add something about it in the docs if not there yet.

Document Details

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• ID: 0e03fdf4-b19b-17c3-04f4-336ab6d2ee06
• Version Independent ID: 38515dfb-91a5-b395-db9d-084bbaf095c8
• Content: Handle errors in ASP.NET Core
• Content Source: aspnetcore/fundamentals/error-handling.md
• Product: aspnet-core
• Technology: aspnetcore-fundamentals
• GitHub Login: @tdykstra
• Microsoft Alias: riande

Associated WorkItem - 88397