Spring boot - Threads / Feign-Client / Messaging / Streamlistener

Question

We struggle to find a solution for the following scenario:

Situation

• Receive a message via Spring Cloud Streamlistener

• Invoke a REST-Service via Feign-Client

• We have configured several Feign-RequestInterceptor to enrich request header data.

We want to avoid passing every request header on the method call and like the central configuration approach of the request interceptors.

Problem:

How to access data from a specific message, which contains informations, that need to be added to every request call via the Feign-RequestInterceptor. We don't have a Request-Context, as we come from a message.

Can we be sure , that the message consumption and the REST call is happening on the same thread? If yes, we could use the NamedThreadLocal to store the information.

Answer 1

是的，除非您RestTemplate给 StreamListener 中的另一个线程，否则其余调用将在同一线程上进行（假设您使用的是RestTemplate而不是反应式 Web 客户端）。