找出哪个端点发送了REST调用

Question

I'm trying to create a visualisation of REST calls among several internal and external services/servers. I'd like to know which endpoint called which other endpoint. I figured that the only way to do this is to do this on the caller side, because the receiver does not have any information about the caller endpoint.

Here's my thinking:

1. I create an object like RestTemplate and call the method.
2. I create an Interceptor or something like that, which will extract the information from the RestTemplate.

My problem is that I'm not sure how to find out which REST endpoint called the RestTemplate method. The RestTemplate (or other similar object) call could be called in nested methods, so for example the endpoint could invoke a private method, which then calls the external service itself.

Is there any way how to get this information? Or am I maybe just thinking too hard and there is an easier way to do this?

Example:

@GetMapping("/hello")
public String hello() {
    methodThatCallsOtherEndpoint("something.com/weather"); // this method inside itself calls an endpoint
    logRestCall("localhost:8000/hello", "something.com/weather"); // how do I do this automatically without having to type it myself?

    return "hello";
}

Thanks for any help.

Answer 1

如果这些服务/服务器具有静态IP，则可以用其IP地址标记它们吗？

Answer 2

您可以使用Spring Sleuth来跟踪不同REST调用之间的关系。