SPR-16819 - Improve handling of unknown status codes by WebClient #1829
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Issue: SPR-16819
Prior to this commit, `WebClient.RequestHeadersSpec.retrieve()` always throw `IllegalArgumentException` on unknown status codes. This commit improves support of unkwnown status codes and introduces new method - `onStatusCode`, which allows to apply response error handling for status codes that can't be resolved through `HttpStatus`. New class `StatusCodePredicates` provides convenient way to create predicates for `onStatusCode` method. Issue: SPR-16819
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Merged with 038af9a, see comment on the SPR issue. |
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These changes are aimed to improve handling of unknown status codes by reactive
WebClient.In
ClientResponsethegetRawStatusCode()method was introduced that allows to obtain raw status code value from response after the corresponding method in reactiveClientHttpResponsewas provided (see SPR-16748).Also the
retrieve()method in defaultWebClientimplementation andstatusError()inExchangeFilterFunctionswere changed in order to provide support of unknown status codes. The newonStatusCode()(WebClient.ResponseSpec) andstatusCodeError()(ExchangeFilterFunctions) methods allow to specify exception function which should be applied on matching the status code (intvalue) against the specified predicate. TheStatusCodePredicatesprovides convenient way to create predicates for these methods.https://jira.spring.io/browse/SPR-16819