Java Spring EventSourcing and CQRS Clean Architecture microservice 👋⚡️💫

• Java-Spring-CRQS-Eventsourcing-Microservice

  1 99 0.0 Java

  Java-Spring-CRQS-Eventsourcing-Microservice

Source code you can find in GitHub repository The main idea of this project is the implementation of Event Sourcing and CQRS using Java, Spring and EventStore using Postgresql, previously have written same article where implemented the same using Go and EventStoreDB, think EventStoreDB is the best choice for event sourcing, but in real life at some projects we usually have business restrictions and for example usage of the EventStoreDB can be not allowed, in this case think postgres and kafka is good alternative for implementing our own event store. Didn't write in this article about Event Sourcing and CQRS patterns,th e best place to read is microservices.io, blog and documentation of this article is very good too, and as written in previous article, highly recommend Alexey Zimarev "Hands-on Domain-Driven Design with .NET Core" book and also his blog.

• PostgreSQL

  405 14,673 10.0 C

  Mirror of the official PostgreSQL GIT repository. Note that this is just a *mirror* - we don't work with pull requests on github. To contribute, please see https://wiki.postgresql.org/wiki/Submitting_a_Patch

  

PostgreSQL - PostgreSQL database.

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• jaeger

  94 19,409 9.7 Go

  CNCF Jaeger, a Distributed Tracing Platform

  

Jaeger - Jaeger is a distributed tracing system

• Spring Data JPA

  21 2,893 9.1 Java

  Simplifies the development of creating a JPA-based data access layer.

  

In this project we have microservice events tore implemented using PostgreSQL,Spring Data JPA and Kafka, for projections used Spring Data MongoDB and communicate by REST.

• sagan

  103 3,102 7.2 HTML

  Discontinued The spring.io site and reference application

  

Spring - Java Spring

• springdoc-openapi

  18 3,086 8.9 Java

  Library for OpenAPI 3 with spring-boot

  

Our microservice accept http requests: For swagger used Swagger OpenAPI 3. The bank account REST controller, which accept requests, validate it using Hibernate Validator, then call command or query service. The main reason for CQRS gaining popularity is the ability to handle reads and writes separately due to severe differences in optimization techniques for those much more distinct operations.

• hibernate-validator

  5 1,168 5.3 Java

  Hibernate Validator - Jakarta Bean Validation Reference Implementation

  

Our microservice accept http requests: For swagger used Swagger OpenAPI 3. The bank account REST controller, which accept requests, validate it using Hibernate Validator, then call command or query service. The main reason for CQRS gaining popularity is the ability to handle reads and writes separately due to severe differences in optimization techniques for those much more distinct operations.

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• Grafana

  379 60,279 10.0 TypeScript

  The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

  

Grafana - Grafana

• Flyway

  81 7,763 7.2 Java

  Flyway by Redgate • Database Migrations Made Easy.

  

Flyway - Database migrations

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