Fix throwing error when an error is thrown in the backend. #288
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WalkthroughThe recent update introduces a refined error handling mechanism within the Changes
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| if (error instanceof HttpException) { | ||
| throw error; | ||
| } | ||
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| if (error instanceof Prisma.PrismaClientKnownRequestError) { | ||
| throw new HttpException(errorMessage, statusCode); | ||
| } |
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The updated logic in the handleServiceError function now throws exceptions directly for instances of HttpException and wraps Prisma.PrismaClientKnownRequestError in an HttpException before throwing. This approach ensures that errors are communicated more accurately to the client, aligning with the PR's objectives. However, consider adding specific handling for other custom errors defined in this file, such as AppError, NotFoundError, BadRequestError, UnauthorizedError, and NotUniqueRecord, to ensure consistency in error handling across the application.
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| if (error instanceof HttpException) { | ||
| throw error; | ||
| } | ||
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| if (error instanceof Prisma.PrismaClientKnownRequestError) { | ||
| throw new HttpException(errorMessage, statusCode); | ||
| } | ||
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The logic for handling Prisma.PrismaClientKnownRequestError errors throws a new HttpException with the errorMessage and statusCode derived from the Prisma error. This is a significant improvement in error handling, ensuring that Prisma errors are communicated effectively to the client. However, it's important to ensure that the statusCode set for Prisma errors is appropriate for the type of error encountered. For example, a unique constraint violation might be better represented with a 400 (Bad Request) or 409 (Conflict) status code rather than a generic 500 (Internal Server Error). Consider refining the logic to map specific Prisma error codes to more appropriate HTTP status codes.
The function returns an object with data, error, message, and statusCode fields when an error does not result in an exception being thrown. This structured response is beneficial for client-side error handling. However, ensure that the errorMessage included in the response is sanitized and does not expose sensitive information or implementation details that could pose a security risk. Additionally, consider standardizing the error response format across different parts of the application to facilitate easier error handling on the client side.
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