distributed-transactions-practice

Java start

1. cd ./docker && ./recreate.sh && cd ../
2. cd ./java
3. gradlew :payments:payments-grpc-service:bootRun &
4. gradlew :reserve:reserve-grpc-service:bootRun &
5. gradlew :orders:orders-grpc-service:bootRun &
6. open in browser http://localhost:7080/swagger-ui/index.html
7. use examples from the request directory to create an order

Run Go

1. Just reuse DB populated by gralde build
2. cd ./golang
3. task
4. task run
5. open in browser http://localhost:8001/swagger-ui/index.html

Comparsion

	Java	Go
version	24	1.25
Build tool	Gradle 8.14	Task
Code formatter	com.diffplug.spotless gradle plugin	built-in
Boilerplate recuder (code gen)	org.projectlombok:lombok	fieldr
Logger	slf4j	zerolog
Application framework	Spring Boot	not used
Dep. injection	Spring Context	not used
Postgres driver	R2DBC	pgx/v5
RDBC access layer generator	Jooq	Sqlc
DB migration lib	Liquibase	Goose
Tests engine	junit5	built-in
Integration tests	jvm-test-suite gradle plugin
Mock lib	Mockito	Mockio
REST engine	Spring Webflux	built-in http.Server
GRPC engine lib	io.grpc:grpc-netty-shaded	google.golang.org/grpc
GRPC code generator	com.google.protobuf gradle plugin	easyp
GRPC-REST transcoding	io.github.danielliu1123:grpc-server-boot-starter	grpc-gateway protoc plugin
GRPC-REST Open API generator	io.github.danielliu1123:grpc-starter-transcoding-springdoc	openapiv2 protoc plugin
Docker container builder
Kafka lib	Spring Kafka, reactor-kafka	franz-go
Tracing	opentelemetry-spring-boot-starter
Metrics for prometheus	actuator