spring-cloud-openfeign | Support for using OpenFeign in Spring Cloud apps | Microservice library

I'm currently working on a microservices application for my internship using Consul for service discovery and feign clients for communicating between the services. When we started working on the existing project which already was built using microservices, we upgraded Spring boot to 2.4.3 & cloud to 2020.0.1, so that we could make use of Java 15 to use records instead of normal classes for dtos. The problem we have now is that, whenever we make a call to a composite service, that will try to retrieve data from multiple services (for example users and teams service), that we get the following stacktrace:

I'm making a sequential request using Feign Builder. There are no x-b3-traceid,x-b3-spanid .. in the title of the request. That's why the log my last client appears on the zipkin.

I use spring boot 2.4.2 , spring cloud 2020.0.0 , feign-core 10.10.1 , feign-okhttp 10.10.1. I have tried spring-cloud-openfeign and i achieved wanted result. But i don't want to use this lib. There are requests when using Feign Builder and Rest Template in here. I dont' see same log at zipkin.

My Client1 App. I am sending request http://localhost:8082/

Tell me how to properly configure the work of Feign and Spring Pageable Here are my Feign settings

so I have a simple project like:

I am new to Spring-cloud-openfeign. I am trying to build a micro-service based system. To make things look simpler, just take 3 of those services, which are Gateway, Service-A, Service-B. When I make a request from my frontend to Service-A through Gateway, the gateway will verify the JWT token in the request, and extract user information (userId) from the token and will put in the request as a header and will forward it to Service-A. Now Service-A will call service-B through feign-client. Now during this inter-service call through feign-client, I am trying to forward userId from the current request in Serice-A to outgoing request to service-B through a Feign RequestIterceptor. But I am not able to retrieve current request in the interceptor. I tried the solution in this stack_over_question, but it doesn't seem to work. I think I face the same problem as of this github_issue. I could see some blogs and articles advising to use RequestContextListner or RequestContextFilter to get the current request out of the Dispatcher-Servlet, But I couldn't find out how to use or implement it. Following is the code I am currently using

I get the error: Could not find artifact org.springframework.cloud:spring-cloud-openfeign:pom:unknown in central (https://repo.maven.apache.org/maven2)

Here is my pom.xml

as I wrote in this issue: https://github.com/spring-cloud/spring-cloud-openfeign/issues/375 and in this SO question: Spring data Pageable does not work with feign client

I have some problems sending a Pageable object in a POST request containing a @requestbody element.

First I tried sending the Pageable embedded in my RequestBody since it was generated as example when using springdoc-openapi-webmvc-core.

Example:

I tried to create a feign client for my REST service controller in Spring.

I'm writing an app (available here on GitHub - build/run instructions below) that scrapes a log file and reacts to certain events written to the log (in this case, making an HTTP request to a REST API). I've chosen Java, Spring Boot 2.x, Apache Tailer and OpenFeign as the primary vehicles to that end.

I suspect I'm not understanding how Apache Tailer and the threading it does in the background work, or how to properly leverage it within a Spring Boot app. What's a correct way to initialize and run a Tailer in the context of a Spring Boot app?

To test this, I'm starting the app locally, and echoing lines of text into the given log file via a shell. As of writing (commit 1fed906), when I run the app it seems that:

1. The Tailer initializes (I can see TailerListenerAdapter.init() is called on the TailerListenerAdapter I constructed it with)

2. The Tailer runs (I see everything I write to the log file it watches passed to TailerListenerAdapter.handle()).

As soon as I write something to the log that my TailerListenerAdapter knows it should react to, it looks like control exits from the Tailer.run() method call, and the app exits (gracefully). I want it to keep running and tailing the log until I stop the app though.

I wasn't really sure where to call Tailer.run() in this context so I have it in a @PostConstruct method in my custom Tailer subclass. I've never used @PostConstruct before, so I'm not 100% sure I'm using it correctly, or if there's a better place to put it to ensure that run() gets called at start up while also allowing me to inject all of my my config-file / bean driven options into it.

1. Clone the project

2. Run this in a shell: mvn spring-boot:run -Dspring-boot.run.arguments=--tailer.logFile=/path/to/any/test.log,--logging.level.com.github.ubunfu.mclogbot=DEBUG

   OR

   Set up an equivalent run configuration in your IDE. There's an application-local.yml Spring Boot config file with a place to specify the path to the test log file. In IntelliJ, set up a Maven run config with the following in Command Line: spring-boot:run -Dspring-boot.run.arguments=--spring.profiles.active=local