Mastering microservice communication with Spring Cloud Feign
What you'll learn
- Using Feign to communicate between microservices
- Using Spring Cloud OpenFeign to communicate between microservices
- Ensuring service resiliency
- Integration testing of microservice communications using WireMock
- Integrating circuit breakers into the communications
- Ensuring API response time using Time Limiters
- Key Resilience4J features combined with Feign
- Client side load balancing
- Using Spring Cloud Netflix Eureka as a Service Registry
- Beginner Java knowledge
- Beginner Spring and Spring Boot knowledge
- A tiny bit of WireMock knowledge for the testing module
In this very practical course, you'll learn how to do effective microservice HTTP communication using Feign and Spring Cloud OpenFeign.
Nowadays microservices are everywhere. We need to learn how to use the architecture to our advantage to achieve the targeted goals. I'll help you to understand how to build a resilient communication channel between your services.
The course curriculum includes a lot of exciting pieces:
Regular Feign annotations and mappings
Custom error handling
Spring Cloud OpenFeign configuration
Resilience4J circuit breakers
Resilience4J time limiters
Integrating Spring Cloud Eureka service registry
Client side load balancing
Integration testing the API clients using WireMock
Integration testing circuit breakers, time limtiers and load balancing using WireMock
And that's just a high-level overview what's covered. The course includes non-stop coding where we'll build a complex microservice system to make sure you understand the concepts in detail.
Mastering how to build a reliable communication between your services is critical for every product. In a microservice system, everything can break, even your communication. During this course you'll learn the tools to ensure your messages hit the destination.
Another important question, making sure your individual services can scale to the load. What if they cannot? How to configure your API clients to cope with this and make sure we're not overloading the services? Using Resilience4J and Spring Cloud OpenFeign, we'll hit this milestone very quickly.
Testing microservices was never easy. On the contrary, it's a question most engineers would avoid. Using WireMock and combining it with Spring Cloud OpenFeign, I'll show you how to test your request/response mappings, circuit breakers, load balancing, and much more.
Who this course is for:
- Intermediate Java engineers curious about microservice communication
- Anybody with little or no experience about Feign
- Anybody with little or no experience about Spring Cloud OpenFeign
- Java engineers curious about the integration testing of microservice communications
My journey began with the IT world when I was little, around age 7. I always had this vision of me working with computers. Back then I couldn't really distinguish software and hardware jobs, the only thing I knew is to work with computers.
During high-school I started to focus on actual programming and I knew software is going to be my world. I went to university at Budapest, studying Computer Science.
My master years were half committed to studying and the other one is to get work experience so that's when my career started.
Since then, from a junior engineer, I went through the ladder fairly quickly. I was promoted to be a standard engineer, then a senior, then a lead. And for the last couple of years I've been leading multiple engineering teams simultaneously to deliver successful solutions and achieve organizational goals.