https://blog.toright.com/posts/725/representational-state-transfer-%e8%bb%9f%e9%ab%94%e6%9e%b6%e6%a7%8b%e9%a2%a8%e6%a0%bc%e4%bb%8b%e7%b4%b9-part-i-%e5%be%9e%e4%ba%86%e8%a7%a3-rest-%e5%88%b0%e8%a8%ad%e8%a8%88-restful%ef%bc%81