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19 lines
1.0 KiB
Markdown
19 lines
1.0 KiB
Markdown
# User Authentication Flow — Error Handling
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Global exception mapping performed by `API.Core`'s `GlobalExceptionFilter`. Applies uniformly across every authentication endpoint (registration, login, refresh, confirm, resend, update-username/email/password/profile, delete-account) — see the per-flow diagrams for where each exception type is thrown.
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```mermaid
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sequenceDiagram
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participant API as API Controller
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Note over API: GlobalExceptionFilter catches:
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Note over API: FluentValidation.ValidationException → 400 Bad Request {message, errors} (grouped by property)
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Note over API: ConflictException → 409 Conflict
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Note over API: NotFoundException → 404 Not Found
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Note over API: UnauthorizedException → 401 Unauthorized
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Note over API: ForbiddenException → 403 Forbidden
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Note over API: Domain.Exceptions.ValidationException → 400 Bad Request
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Note over API: Microsoft.Data.SqlClient.SqlException → 503 Service Unavailable
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Note over API: All others → 500 Internal Server Error
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```
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