GoldTree of C.E

Problem While conducting an online study project, I came across the N+1 issue, so I decided to test it. Firstly, our current database diagram is as follows. And the repository to test the N+1 issue is StudyRoom. To perform this test, I wrote the following code. @ActiveProfiles("test") @ExtendWith(SpringExtension.class) @DataJpaTest public class StudyRoomRepositoryTest { @Autowired private StudyR..

An issue has arisen in the RoomUser during the development of the project. Before explaining it, let me provide some context. Context In this project, there are three main tables: User: This table is necessary for using the online study service. It is required when creating and utilizing the functionality to join study rooms. StudyRoom: This table represents the study rooms. RoomUser: This table..

Tried to create a video chat using WebRTC, didn't know it would take this long.There weren't many conference using Spring, and it is difficult to apply, it's getting to late, But since we made it, let's get started. Function definition Since it is a prototype, the function was made simple main Users should be able to see all study rooms. Create study room In order to use video chat, user have to..

This chapter was intended to implment WebRTC, but we decide to learn Websocket first beacuse Websocket used in the signaling process. I think lif is not going as expected. Anyway, let's try it. WebSocket Websocket is a protocol developed to provide full duplex in compatibility with half duplex HTTP protocol. Unlike general Socket communication, it uses HTTP 80 Port, so there are no restrictions ..

In the previous chapter, we learned about WebRTC servers such as TURN and STUN servers . In this chapter, we learn about the types of WebRTC implementations. Type of WebRTC implementations There are three main implementation methods of WebRTC : Mesh, MCU, and SFU. Mesh It's P2P method that we can easily think of. As shown in the figure above, each client has one Uplink to transmit its media info..

Summary This project will develop a video chat-related service that has been delayed under the pretext of "I think it will be difficult" and "I don't have time". Real-time remids me of the problem of delay and connections even if I don't actually lear it. I don't know if the project will success, but...let's try it. In order to implement video chat, I need to know a technology called Web Real-Ti..