Convert String error response to Http Status code

Question

In Java+Spring application I am using, from a third party called over RestTemplate , we get the error response in the JSON with 200 response code.

e.g

{
    "errors": [{
        "reason": "did not like the request",
        "error": "BAD_REQUEST"
    }]
}

How can I convert BAD_REQUEST to the 400 integer representations. Apache HttpStatus inte does not seem to provide any interface to do so.

So your server replies with an HTTP status of 200 with that content? — Sotirios Delimanolis
– Sotirios Delimanolis, Commented Oct 31, 2017 at 18:52
Ask them all their possible errors, and create your own mapping to standard status codes. — JB Nizet
– JB Nizet, Commented Oct 31, 2017 at 18:53
@JBNizet there is no library to convert string response text to int? — Novice User
– Novice User, Commented Oct 31, 2017 at 18:55
How would such a library know which strings the third-party chose, and which status code they should be mapped to? These strings are not standard. — JB Nizet
– JB Nizet, Commented Oct 31, 2017 at 19:24

sergey · Accepted Answer · 2017-10-31 19:25:09Z

11

Maybe you can use org.springframework.http.HttpStatus:

String error = "BAD_REQUEST";
HttpStatus httpStatus = HttpStatus.valueOf(error);
int errorIntCode = httpStatus.value();

or more safe:

String error = "BAD_REQUEST";
HttpStatus httpStatus = Arrays.stream(HttpStatus.values())
        .filter(status -> status.name().equals(error))
        .findAny()
        .orElse(HttpStatus.INTERNAL_SERVER_ERROR);
int errorIntCode = httpStatus.value();

answered Oct 31, 2017 at 19:25

sergey

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1 Comment

Novice User Over a year ago

Awesome ! Thanks

Jose Mhlanga · Accepted Answer · 2020-05-23 09:52:57Z

-1

More succinct and short

HttpStatus.OK.value();

answered May 23, 2020 at 9:52

Jose Mhlanga

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