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fix(backend): chaves de errors em camelCase e mensagem do domínio preservada no 400 - #163
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📝 WalkthroughWalkthroughThe API problem-details factory now emits camelCase error keys for each dot-separated path segment and creates an empty-key entry when a validation error has no field errors. Tests and documentation specify the response contract, including its distinction from framework model-binding errors. ChangesError-key wire contract
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~15 minutes Change: Bug fix Merge Risk: 🔵 Low · up to The change is mostly a safe key-casing fix with tests and documentation. A rare case where two field names differ only by casing could throw while building a 400 response. Merge is low risk, and that case is worth fixing as a follow-up. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The existing frontend supports the changed field names and fieldless errors. The inspected provisioning endpoint remains access-controlled, but the newly returned messages include identity-provider descriptions whose disclosure safety is not fully established. No sensitive-data disclosure was demonstrated. Retained concerns Security review detailsSecurity Blast Radius
Trust Boundaries and Controls
Hardening Proposals
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Actionable comments posted: 6
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Inline comments:
Review comments at
@backend/shared/Admin.SharedKernel.AspNetCore/ApiProblemDetailsFactory.cs:
- Line 105: Update the field-error conversion that uses ToWirePath so colliding
wire keys do not cause ToDictionary to throw; group entries by converted key and
retain all error lists under each key.
- Line 24: Update the error.FieldErrors fallback in ApiProblemDetailsFactory to
use CreateSingleErrorDictionary when FieldErrors is null or empty, preserving
the existing dictionary when it contains entries so the response includes
error.Message for empty validation errors.
Review comments at
@docs/adr/0044-clients-aggregate-uniqueness-and-conflict-contract.md:
- Around line 3-4: Update ADR 0044’s wire-key casing decision to mark it as
superseded by ADR 0051, linking to the replacement decision; keep the ADR’s
overall accepted status and remaining decisions current.
Review comments at @docs/adr/0051-camelcase-error-keys-on-the-wire.md:
- Around line 32-33: Update toFormErrors to normalize indexed paths from bracket
notation to dot notation and lowercase both field paths and error keys before
lookup. Preserve the existing behavior of assigning unmatched errors to the
form-level error.
Review comments at @docs/API.md:
- Line 110: Update the API description near the “campo do corpo” wording to
cover all validated request fields and parameters, including body fields, route
parameters, and query parameters; keep the existing `{code, message}` list
description.
- Line 110: Remove the duplicated “uma” from the API documentation sentence so
it reads “cada uma lista”; leave the surrounding wording unchanged.
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📒 Files selected for processing (10)
.claude/skills/agenza-api-contract/references/errors.md.claude/skills/agenza-form-field/SKILL.mdbackend/docs/ARCHITECTURE.mdbackend/shared/Admin.SharedKernel.AspNetCore/ApiProblemDetailsFactory.csbackend/shared/Admin.SharedKernel.Tests/ApiProblemDetailsFactoryTests.csbackend/shared/Admin.SharedKernel.Tests/ResultExtensionsTests.csdocs/API.mddocs/adr/0044-clients-aggregate-uniqueness-and-conflict-contract.mddocs/adr/0051-camelcase-error-keys-on-the-wire.mddocs/adr/README.md
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… 0051 A ADR 0044 tinha sido editada como se o PascalCase nunca tivesse existido (errors.Cpf → errors.cpf no corpo), contra a regra do AGENTS.md. O corpo volta ao texto original, com uma nota de atualização e o status apontando para a 0051; o índice ganha a linha de superseded e a 0044 entra na lista de ADRs com trechos históricos. Na 0051: a troca de [n] por .n é do cliente e chega com o primeiro formulário com listas (o toFormErrors do main não a faz); a colisão de chaves não acontece porque o System.Text.Json já recusa um comando com duas propriedades no mesmo nome JSON. Na API.md, as chaves valem para corpo, rota e query. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
1 participant
Resumo
Duas correções no campo
errorsdas respostas de problema, as duas num lugar só (ApiProblemDetailsFactory):errorssaíam com o caminho da propriedade C# (FullName,Guardians[0].Name,Cpf), enquanto o corpo e todo o resto do fio são camelCase. Agora saem como o caminho do JSON:fullName,guardians[0].name,cpf. (ADR 0051)DomainErrorMapperdevolve umError.ValidationsemFieldErrors, e o factory respondiaerrors: {}com o título genérico, descartando a mensagem. Isso existia desde o Remove local git hooks; add GetCategoryById endpoint; backend API response/CORS infra #70 e contradiz a ARCHITECTURE §4 ("its messages are the fallback"). Agora a mensagem vem sob a chave vazia"", como já acontece com 404/409 sem campo.Por que na fronteira HTTP
O factory é o único ponto por onde passam todos os
errors: validator, conflito de handler, 404, 409 e 500. Domain e Application continuam com nomes C# (nameof,OverridePropertyName), e os testes deles não mudam. A conversão usaJsonNamingPolicy.CamelCase, a mesma política do corpo.Alternativas descartadas (detalhes na ADR):
PropertyNameResolverglobal do FluentValidation: não cobre os conflitos dos handlers (field: "Cpf"), é estado global estático e leva um detalhe do fio para a Application.DictionaryKeyPolicyno JSON: só converte a primeira letra (guardians[0].Name) e atinge todo dicionário, inclusive ometa.JsonConverternoErrors: o objeto em memória ficaria em PascalCase, e os testes verificariam algo diferente do fio.O que o revisor deve saber
SystemTextJsonValidationMetadataProviderfoi testado e não alcança os parâmetros de records posicionais, que é como todos os comandos são escritos. Substituir oInvalidModelStateResponseFactoryseria infraestrutura demais para uma resposta semcode, em inglês, que nenhum cliente mapeia para campos.[JsonPropertyName], outra naming policy, nemFromQuery(Name=…)no backend (conferido).codedo topo é o do domínio (ex.:CpfNumber.Invalid), nãoValidation.Failed, como a ADR 0014 já previa. O frontend não ramifica porValidation.Failed.Owner.CreationFaileddo identity (endpoint interno de provisionamento) também passa a devolver o motivo da falha sob"". O texto vem do ASP.NET Identity, em inglês.toFormErrorse oexistingClientId.tscomparam chaves sem diferenciar maiúsculas, e a chave""já vira mensagem do formulário. O schema OpenAPI não muda (errorsé um mapa de string), então não há tipos a regenerar.claude/clientes-frontend-154-a56a20em.claude/skills/agenza-api-contract/references/errors.md. O texto daquele branch e os fixtures dos testes ainda citamGuardians[1].NameeCpf; os testes passam do mesmo jeito, mas deixam de refletir a resposta real.asd; o squash merge usa o título deste PR.Verificação
dotnet build backend/AdminBackend.slnx -c Release: 0 warnings.dotnet test backend/AdminBackend.slnx -c Release: 487 testes passando (shared kernel 43, identity 19, services 394, persistence 31). NovoApiProblemDetailsFactoryTestscobre a conversão de caminhos (Guardians[0].Name→guardians[0].name,ReferenceContacts[12].Purposes,MaxDurationMinutes, chave vazia), e o teste de validação sem campos agora garante a mensagem sob"".fullName,guardians[0].name,referenceContacts[0].purposesguardians(Client.GuardianRequired)tagId; query:page,pageSizecpf(Client.DuplicateCpf, commeta)FullName/Guardians[0].Name, como documentadoPOST /clientscomcpf: "090884971"devolveucode: "CpfNumber.Invalid"eerrors: {"": [{"code":"CpfNumber.Invalid","message":"O CPF informado é inválido."}]}.Documentação
API.md (§4.1 casing, novo caso de validação do domínio, §4.3, tabela da §6), ADR 0051 nova, cabeçalho da ADR 0044, índice de ADRs, tabela de portões da
backend/docs/ARCHITECTURE.md§4, skillsagenza-api-contracteagenza-form-field.🤖 Generated with Claude Code
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