#spring exception handling

1 messages · Page 1 of 1 (latest)

desert ruin
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how do you handle exceptions in spring and map them to http codes? there's resposnestatus which you can add to exceptions

i also want to know how i can format my exceptions nicely and not have the entire stacktrace shown to users

umbral boughBOT
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<@&1004656351647117403> please have a look, thanks.

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TJ-Bot
How do you handle exceptions in spring and map them to http codes? there's resposnestatus which you can add to exceptions i also want to know how i can format my exceptions nicely and not have the entire stacktrace shown to users

In Spring, you can handle exceptions by using the @ExceptionHandler annotation in your controller classes. This annotation allows you to define a method that will handle specific exceptions thrown within that controller.

To map exceptions to HTTP status codes, Spring provides the @ResponseStatus annotation. You can add this annotation to your custom exception classes and specify the HTTP status code that should be returned when that exception is thrown.

For example:

@ResponseStatus(HttpStatus.NOT_FOUND)
public class ResourceNotFoundException extends RuntimeException {
    // custom exception logic
}

To format your exceptions in Spring, you can create custom error response classes with fields for error messages, timestamps, and any other relevant information. You can then return these error response objects from your exception handler methods.

For example:

public class ErrorResponse {
    private String message;
    private LocalDateTime timestamp;

    // getters and setters
}

Within your exception handling method, you can create an instance of the ErrorResponse class, populate it with the appropriate information, and return it as the response entity.

By using @ExceptionHandler, @ResponseStatus, and custom error response classes, you can effectively handle and format exceptions in Spring applications while mapping them to specific HTTP status codes.

raw grail
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You can define @ExceptionHandlers in your controller

rapid sundial
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And you can make shared ones with... Something. Spring is a bit rusty for me damn

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@raw grail help lol

raw grail
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@rapid sundial @desert ruin

@ExceptionHandler(SomeException.class)
public ErrorResponse handleSomeException(SomeExceptionex) {
    return ErrorResponse
            .builder(ex, HttpStatus.INTERNAL_SERVER_ERROR, ex.getMessage())
            .title("Some handled exception")
            .type(URI.create("some-error"))
            .build();
}
rapid sundial
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No there's a different one

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@ControllerAdvice

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Thats the one

desert ruin
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would controlleradvice be better for generic exceptions?

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i'm looking to format all my excepts the same way

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so all exceptions should return

{
  "type": "ERROR_TYPE",
  "error": "Exception message"
}

or just

{
  "error": "Exception Message"
}

i havent decided yet. idk how useful type would be

rapid sundial
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There's also specific error libraries with half standards

raw grail
bronze mortar
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i assume you want to have a generic format for all your api responses

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some of them go from endpoint handlers

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and some others are done in exception handlers

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check my answer here, it may help you #1190072253203890378 message

desert ruin
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not all my api responses just errors

bronze mortar
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alright, you just need to make a dto for that

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call it something like ApiError

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then from your exception handlers

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you can return it

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ApiError.create(message, code)

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something like this should be enough

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@desert ruin