英文:
Listening with WebSocket Angular app to a REST end point
问题
我已经实现了一个具有一些产品实体端点的Spring Boot REST服务器。
在客户端，也就是一个Angular应用中，我只想监听这些REST端点。我的意思是，与聊天应用程序相反，无需将消息/产品发送到服务器。因此，客户端应用程序仅监听变化。
我不确定是否应该修改我的Spring Boot REST服务器以添加WebSocket功能。
我看到很多关于Spring Boot和聊天应用程序的教程，但我不确定那是否适用于我这个简单的应用程序。
英文:
I already implemented a Spring Boot REST server with some endpoints for Products entity.
In the client-side, which is an Angular application, I want to only listen to the REST endpoints. What I mean is that in contrast to chat apps, there is no need to send messages/products to the server. So the client app only listens for changes.
I am not sure if I should change my Spring Boot REST server to add Websocket functionality or not.
I see a lot of tutorials about Spring boot and chat applications, but I am not sure if that's what I need for my simple application.
答案1
得分: 0
如果您将在服务器和客户端之间建立的通信通道是单向的，那么您必须使用服务器发送事件（Server Sent Events，SSE） [1]。简而言之，客户端将通过打开事件流请求来连接到SSE终端点。这里我附上一个使用curl连接的示例
curl --location -X GET 'localhost:8080/sse' \
-H 'Content-Type: text/event-stream;charset=UTF-8' \
-H 'Accept: text/event-stream;charset=UTF-8'
请注意，SSE终端点是**/sse**。还请注意这些头部信息。
[1] https://www.baeldung.com/spring-server-sent-events
英文:
If the communication channel that you will set up between your server and your client is unidirectional, then you must use server sent events [1]. In summary, the client will connect to the SSE endpoint by opening an event-streaming request. Here I attach an example on how to connect with curl
curl --location -X GET 'localhost:8080/sse' \
-H 'Content-Type: text/event-stream;charset=UTF-8' \
-H 'Accept: text/event-stream;charset=UTF-8'
Note the SSE endpoint is /sse. Also note the headers.
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