Hello, I've finished the lecture and am leaving a review. Thank you for the great lecture. It may be because I misunderstood, but the explanation was a bit difficult and stiff. And the sound was too low. Still, I think this is the best among the Java rest API lectures. I'm looking forward to the next lecture. Thank you. And if you need it, please refer to the notes organized in http://terecal-hyun.co.kr/skilnote1/myshortcut/java-rest-api-basic/1