WebConfig.java

package com.sprint.mission.discodeit.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.RequiredArgsConstructor;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.AbstractJackson2HttpMessageConverter;
import org.springframework.web.method.HandlerTypePredicate;
import org.springframework.web.servlet.config.annotation.PathMatchConfigurer;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.List;

@Configuration
@EnableJpaAuditing
@RequiredArgsConstructor
public class WebConfig implements WebMvcConfigurer {
    private final ObjectMapper objectMapper;

    @Override
    public void configurePathMatch(PathMatchConfigurer configurer) {
        configurer.addPathPrefix("/api",
                HandlerTypePredicate.forBasePackage("com.sprint.mission.discodeit"));
    }

    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        converters.add(new AbstractJackson2HttpMessageConverter(objectMapper,
                new MediaType("application", "octet-stream")) {
            @Override
            public boolean canRead(Class<?> clazz, MediaType mediaType) {
                return mediaType != null && mediaType.includes(MediaType.APPLICATION_OCTET_STREAM);
            }

            @Override
            public boolean canWrite(Class<?> clazz, MediaType mediaType) {
                return false;
            }
        });
    }
}