Great Lakes Software Symposium

November 2 - 4, 2018

Microservices Communication Patterns

Saturday - Nov 3 9:00 AM - BALLROOM 3-5

Mark Richards

Mark Richards

Independent Software Architect, Author of Software Architecture Fundamentals

Most of us just assume we will be using REST for microservices. However, there are sometimes issues associated with this assumption. There are several protocols that can be effectively used in addition to REST in microservices to significantly increase performance, robustness, and scalability when communicating to and between services. In this session I will discuss some of the patterns of communication to and between services, including REST, messaging, gRPC, and API Gateways. I will then talk about three key patterns of communication - orchestration, aggregation, and service gateways.


  • Communicating using REST
  • Communicating using messaging
  • Communicating using gRPC
  • Communicating using API Gateways
  • Leveraging the orchestration pattern
  • Leveraging the aggregation pattern
  • Leveraging the gateway pattern

About Mark Richards

Mark Richards is an experienced, hands-on software architect involved in the architecture, design, and implementation of microservices architectures, service-oriented architectures, and distributed systems. He has been in the software industry since 1983 and has significant experience and expertise in application, integration, and enterprise architecture. Mark is the founder of, a website devoted to helping developers in the journey to software architect. He is the author of numerous technical books and videos, including several books on Microservices (O'Reilly), the Software Architecture Fundamentals video series (O’Reilly), Enterprise Messaging video series (O’Reilly), Java Message Service, 2nd Edition (O’Reilly), and a contributing author to 97 Things Every Software Architect Should Know (O’Reilly). Mark has a master’s degree in computer science and numerous architect and developer certifications from IBM, Sun, The Open Group, and Oracle. He is a regular conference speaker at the No Fluff Just Stuff (NFJS) Symposium Series and has spoken at hundreds of conferences and user groups around the world on a variety of enterprise-related technical topics.