Building Java Microservices with gRPC

This course teaches advanced Java programmers to use the polyglot gRPC open source framework to build and connect Java microservices.

Introduction

• Microservices with gRPC
• What you should know

1. Introduction to gRPC

• Inter-service communication
• gRPC framework overview
• gRPC framework features
• gRPC foundations
• HTTP/1 problems
• How is HTTP/2 better?
• Understand protocol buffers
• Steps to develop a gRPC service

2. Building Blocks of gRPC

• Using protocol buffers
• Using the gRPC API: Download utilities
• Service definition using protobuffs
• Generate stubs using protoc
• Generated classes walk-through
• Metadata and channels
• Types of gRPC calls

3. Build User Service Using RPC

• Overview of order management services built in the course
• Create a maven-gRPC project
• Define user.proto and generate service stubs
• Database code setup
• Add database method to get user details
• Implement service stub
• Write code to host the user service
• Test the user service

4. Build Order Management Service Using gRPC

• Define order.proto and generate stubs
• Add database method to get orders
• Add service method to get order details
• Write code to host order service
• Test the order service using the client
• Recap to connect user and order services
• Write a client to call order service
• Call order client from user service
• Test the full flow of order management
• Challenge: Implement add-to-cart use case

Conclusion

• Building gRPC microservices in Java: Advanced concepts