spring-mvcspring-cloudspring-cloud-feignfeign

How to POST form-url-encoded data with Spring Cloud Feign


Using spring-mvc annotations:


Solution

  • Use FormEncoder for Feign:

    And your Feign configuration can look like this:

    class CoreFeignConfiguration {
      @Autowired
      private ObjectFactory<HttpMessageConverters> messageConverters
    
      @Bean
      @Primary
      @Scope(SCOPE_PROTOTYPE)
      Encoder feignFormEncoder() {
          new FormEncoder(new SpringEncoder(this.messageConverters))
      }
    }
    

    Then, the client can be mapped like this:

    @FeignClient(name = 'client', url = 'localhost:9080', path ='/rest',
        configuration = CoreFeignConfiguration)
    interface CoreClient {
        @RequestMapping(value = '/business', method = POST, 
                     consumes = MediaType.APPLICATION_FORM_URLENCODED)
        @Headers('Content-Type: application/x-www-form-urlencoded')
        void activate(Map<String, ?> formParams)
    }