[Spring] API response -> JSON? XML? -> Content Negotiation

Advanced REST API Features (2)

/ Content Negotiation / api 응답 포맷 형식 변경

Content Negotiation

• Same Resource - Same URI
  • HOWEVER Different Representations are possible
    • Example: Different Content Type - XML or JSON or …
    • Example: Different Language - English or Dutch or…
• How can a sonsumer tell the REST API provider what they want?
  • Content Negotiation
  • Example: Accept header (MIME types - application/xml, application/json, …)
  • Example: Accept-Language header (en, nl, fr, …)

Accept header

pom.xml

<dependency>
	<groupId>com.fasterxml.jackson.dataformat</groupId>
	<artifactId>jackson-dataformat-xml</artifactId>
</dependency>

• 
• Dependency 추가 후 사진과 같이 Headders 부분에 Accept 를 변경하여 json 형식이 아닌 xml로 응답 받을 수 있다.