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java - DataBufferLimitException: Exceeded limit on max bytes to buffer webflux error

While sending a file I receive an array of bytes. I always have a problem with webflux to receive an array. the error thrown as below :

org.springframework.core.io.buffer.DataBufferLimitException: Exceeded limit on max bytes to buffer : 262144
    at org.springframework.core.io.buffer.LimitedDataBufferList.raiseLimitException(LimitedDataBufferList.java:101)
    Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException

Do you now how to resolve that in webflux ?

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1 Answer

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by (71.8m points)

This workerd for me

  1. Create a bean in your one of the configuration class or the main Springbootapplication class

    @Bean
    public WebClient getWebClientBuilder(){
        return   WebClient.builder().exchangeStrategies(ExchangeStrategies.builder()
                .codecs(configurer -> configurer
                          .defaultCodecs()
                          .maxInMemorySize(16 * 1024 * 1024))
                        .build())
                      .build();
    }
    
  2. Next go to your desired class where you want to use the webclient

      @RestController / @Bean/ @Service
       public class PaySharpGatewayController {
            @Autowired
            WebClient webClient;
    
            public void test(){
             String out = webClient
                          .get()
                          .uri("end point of an API")
                          .retrieve()
                          .bodyToMono(String.class)
                         .block();
    
             sysout(out)
            }
    

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