Spring cloud stream + RabbitMQ + Protobuf 
This repository demonstrates microservices pipelines and communications using http and amqp protocols with JSON and Protobuf
O__
/| Hey, I wanna create user!
/ \
-> UserUI HTTP POST (JSON) request -> UserBackend
-> UserBackend send converted (Protobuf) message -> RabbitMQ exchange
-> RabbitMQ exchange send (Protobuf) message -> RabbitMQ UserService queue
-> UserService send converted received User Entity insert query -> UserStore
O__
/| Hey, I wanna fetch user(s) data!
/ \
-> UserUI HTTP GET (JSON) request -> UserBackend
-> UserBackend HTTP GET (Protobuf) request -> UserService
-> UserService send User fetch query -> UserStore
<- UserService <- User Entity from UserStore
<- UserBackend <- Converted HTTP (Protobuf) response from UserService
<- UserUI <- HTTP (JSON) resp from UserBackend
Quickstart
git clone --depth=0 https://github.com/daggerok/spring-cloud-stream-protobuf-rabbitmq.git my-app && cd $_
./mvnw -f rabbitmq docker:start
./mvnw -f user-service spring-boot:start
./mvnw -f user-backend spring-boot:start
open http://127.0.0.1:8001Unit testing
./mvnw clean testE2E testing
rm -rf ~/.m2/repository/microservices
./mvnw clean install -DskipTests
./mvnw -f rabbitmq docker:start
./mvnw -f user-service spring-boot:start
./mvnw -f user-backend -Pe2e test
./mvnw -f user-service spring-boot:stop
./mvnw -f rabbitmq docker:stop docker:removeManual integration testing
rm -rf ~/.m2/repository/microservices
./mvnw clean install -DskipTests
./mvnw -f rabbitmq docker:start
./mvnw -f user-service spring-boot:start # create durable queue
./mvnw -f user-service spring-boot:stop # simulate downtime
./mvnw -f user-backend spring-boot:start # send messsage
curl -sSv 0:8001/api/v1/users -H'Content-Type:application/json' -d'{"username":"maksimko"}'
./mvnw -f user-service spring-boot:start # check message received
./mvnw -f user-backend spring-boot:stop
./mvnw -f user-service spring-boot:stop
./mvnw -f rabbitmq docker:stop docker:remove
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