Header filter

[charred lintel]

Guys when i set my webclient in bean

@Bean
    public WebClient webClient() {
        return WebClient.builder()
                        .baseUrl("https://api.github.com")
                        .build();

    }

and wrote filter to check if there's “Accept: application/json” header
this filter doesnt really intercept it

@Configuration
@Component
public class WebFilterHeaders implements WebFilter {


    @Override
    public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
        var acceptHeader = exchange.getRequest().getHeaders().getFirst("Accept");

        if (acceptHeader == null || !acceptHeader.equals("application/json")) {
            exchange.getResponse().setStatusCode(HttpStatus.BAD_REQUEST);
            return exchange.getResponse().setComplete();
        }
        return chain.filter(exchange);
    }
}

Here's examplary requests call

return webClient.get()
                 .uri(uriBuilder -> uriBuilder
                 .path("/users/{request}/repos")
                 .build(request.nickname()))
                 .exchangeToFlux(res -> res.bodyToFlux(RepositoryData.class))
                 .filter(repositoryData -> !repositoryData.fork())
                 .flatMap(repositoryData -> getBranchesAndSHAs(repositoryData)
                 .collectList()
                 .map(branchDataList -> new GetRepoResponse(repositoryData.name(), repositoryData.owner().login(), branchDataList)))
                 .collectList();

Does anyone know where the problem is? I didn't set it default header “Accept: application/json”
on purpose to check if filter works correctly and it seems dont

[uneven berry]

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[wet lodge]

Please show the full java code including the imports. I am not sure what WebFilter you are implementing.