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How do you handle RestTemplate exception?
Default Error Handling By default, the RestTemplate will throw one of these exceptions in case of an HTTP error: HttpClientErrorException – in case of HTTP status 4xx. HttpServerErrorException – in case of HTTP status 5xx. UnknownHttpStatusCodeException – in case of an unknown HTTP status.
What is the meaning of data layer exception?
2 Answers. 2. 7. OptimisticConcurrencyException is an exception that belongs to the data layer and should therefore be contained within it. It’s unlikely that calling layer could handle it.
What is REST client exception?
public class RestClientException extends NestedRuntimeException. Base class for exceptions thrown by RestTemplate in case a request fails because of a server error response, as determined via ResponseErrorHandler. hasError(ClientHttpResponse) , failure to decode the response, or a low level I/O error.
What should the service layer not know about http?
The service layer should not have any knowledge of http things. Most server frameworks have a top level exception handler and an error handling middleware. That top level exception handler could catch any exceptions not handled by your code and return 500 Internal server error.
Do you throw exceptions in the service layer?
You are correct to say you should not throw HTTP specific exceptions in the service layer. The service layer should not have any knowledge of http things. Most server frameworks have a top level exception handler and an error handling middleware.
How to catch error in nestjs when a query?
I am new to nestjs and was trying to convert my backend from nodejs to nestjs. Hope that makes sense? I am using `typeorm. But I am not sure as what could be the best of way of catching errors.
How are exceptions handled in a server framework?
Most server frameworks have a top level exception handler and an error handling middleware. That top level exception handler could catch any exceptions not handled by your code and return 500 Internal server error.