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https://github.com/SamyRai/tercul-backend.git
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d50722dad5
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- Updated database models and repositories to replace uint IDs with UUIDs. - Modified test fixtures to generate and use UUIDs for authors, translations, users, and works. - Adjusted mock implementations to align with the new UUID structure. - Ensured all relevant functions and methods are updated to handle UUIDs correctly. - Added necessary imports for UUID handling in various files.
50 lines
1.8 KiB
Go
50 lines
1.8 KiB
Go
package graphql
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import (
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"context"
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"errors"
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"tercul/internal/domain"
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"github.com/99designs/gqlgen/graphql"
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"github.com/vektah/gqlparser/v2/gqlerror"
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)
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// NewErrorPresenter creates a custom error presenter for gqlgen.
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func NewErrorPresenter() graphql.ErrorPresenterFunc {
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return func(ctx context.Context, e error) *gqlerror.Error {
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gqlErr := graphql.DefaultErrorPresenter(ctx, e)
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// Unwrap the error to find the root cause.
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originalErr := errors.Unwrap(e)
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if originalErr == nil {
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originalErr = e
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}
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// Check for custom application errors and format them.
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switch {
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case errors.Is(originalErr, domain.ErrEntityNotFound):
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gqlErr.Message = "The requested resource was not found."
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gqlErr.Extensions = map[string]interface{}{"code": "NOT_FOUND"}
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case errors.Is(originalErr, domain.ErrUnauthorized):
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gqlErr.Message = "You must be logged in to perform this action."
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gqlErr.Extensions = map[string]interface{}{"code": "UNAUTHENTICATED"}
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case errors.Is(originalErr, domain.ErrForbidden):
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gqlErr.Message = "You are not authorized to perform this action."
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gqlErr.Extensions = map[string]interface{}{"code": "FORBIDDEN"}
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case errors.Is(originalErr, domain.ErrValidation):
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// Keep the detailed message from the validation error.
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gqlErr.Message = originalErr.Error()
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gqlErr.Extensions = map[string]interface{}{"code": "VALIDATION_FAILED"}
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case errors.Is(originalErr, domain.ErrConflict):
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gqlErr.Message = "A conflict occurred with the current state of the resource."
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gqlErr.Extensions = map[string]interface{}{"code": "CONFLICT"}
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default:
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// For all other errors, return a generic message to avoid leaking implementation details.
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gqlErr.Message = "An unexpected internal error occurred."
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gqlErr.Extensions = map[string]interface{}{"code": "INTERNAL_SERVER_ERROR"}
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}
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return gqlErr
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}
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}
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