Ardalis Result<T> carried incoherent success sub-statuses and a clunky generic converter; ErrorOr models success-or-errors cleanly. - Application: all commands/queries/handlers now return ErrorOr<T> (non-generic Result -> ErrorOr<Success>); errors via Error.NotFound/ Conflict/Validation/Unauthorized/Failure; success via value or new Success() - Drop ResultExtensions.As<>(): error propagation is now just return .Errors - Rewrite HTTP mapping (ErrorOrHttpExtensions) off Error.Type; success maps to 200 (value) or 204 (Success); Created still built in the endpoints - Endpoints/gateway middleware: !IsSuccess -> IsError - Swap Ardalis.Result package for ErrorOr 2.1.1 (remove unused ref from Worker) Build: 0 warnings, 0 errors. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
39 lines
1.3 KiB
C#
39 lines
1.3 KiB
C#
using ErrorOr;
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using IResult = Microsoft.AspNetCore.Http.IResult;
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namespace Musify.Api.Extensions;
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public static class ErrorOrHttpExtensions
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{
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public static IResult ToHttpResult<T>(this ErrorOr<T> result)
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{
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if (result.IsError)
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return Problem(result.Errors);
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return result.Value is Success
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? Results.NoContent()
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: Results.Ok(result.Value);
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}
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private static IResult Problem(List<Error> errors)
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{
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if (errors.All(e => e.Type == ErrorType.Validation))
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return Results.ValidationProblem(ToValidationDictionary(errors));
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var error = errors[0];
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return error.Type switch
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{
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ErrorType.NotFound => Results.NotFound(error.Description),
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ErrorType.Unauthorized => Results.Unauthorized(),
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ErrorType.Forbidden => Results.StatusCode(StatusCodes.Status403Forbidden),
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ErrorType.Conflict => Results.Conflict(error.Description),
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_ => Results.Problem(error.Description)
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};
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}
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private static Dictionary<string, string[]> ToValidationDictionary(IEnumerable<Error> errors) =>
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errors
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.GroupBy(e => string.IsNullOrEmpty(e.Code) ? "general" : e.Code)
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.ToDictionary(g => g.Key, g => g.Select(e => e.Description).ToArray());
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}
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