Backend Technology Stack Selection for Microservices Architecture

Development Languages

Java : A mainstream language suitable for building large-scale backend services.

Golang : Google’s open‑source language optimized for multi‑processor systems, offering C/C++‑level performance, safety, and strong support for parallelism, making it a top choice for cloud computing.

Development IDEs

IntelliJ IDEA : JetBrains’ IDE with intelligent code assistance, J2EE support, and integration of version control, testing, and other tools; free version limited to certain languages.

VS Code : A free, open‑source, cross‑platform, lightweight code editor with strong performance and community support.

Development Technologies

Microservice Frameworks

Spring Cloud / Spring Cloud Alibaba : A collection of frameworks that simplify distributed system infrastructure using Spring Boot, providing a full suite of microservice solutions.

RPC Frameworks

RestTemplate & WebClient : Spring’s clients for accessing REST services.

gRPC : Google’s high‑performance, cross‑language RPC framework based on HTTP/2 and protobuf, supporting connection reuse and long‑lived links.

Distributed Transactions

Seata : Alibaba’s open‑source Java transaction solution offering high performance, lock‑free AT mode, and support for MT mode.

Flow Control & Circuit Breaking

Sentinel : Alibaba’s open‑source Java library for flow control, circuit breaking, and system protection.

API Gateways

Spring Cloud Gateway : Spring’s preferred gateway with asynchronous, non‑blocking support.

Kong : A high‑availability, extensible API gateway built on Nginx/Lua, offering rich plugins.

Configuration Centers

Nacos : Alibaba’s open‑source solution serving as both service registry and configuration center, with a user‑friendly UI.

Apollo : Ctrip’s distributed configuration center providing centralized management, real‑time push, and fine‑grained access control.

Service Discovery

Nacos : Also functions as a service discovery component.

Zookeeper : An open‑source coordination service used for service discovery and configuration, suitable for large‑scale environments.

Monitoring

Prometheus : A comprehensive open‑source monitoring system from the CNCF ecosystem.

Grafana : An open‑source visualization tool for metrics, often paired with time‑series databases.

SkyWalking : An Apache top‑level distributed tracing system with rich documentation.

Logging

ELK : The Elasticsearch‑Logstash‑Kibana stack for centralized log collection, search, and visualization.

Database Middleware

ShardingSphere : Apache’s relational database middleware offering sharding, read/write splitting, and encryption.

Serialization

Jackson : The default, stable, and secure JSON processor for Spring.

Protobuf : Google’s lightweight, efficient binary format for data serialization and RPC.

fastjson : Not recommended.

Development Tools

Build Tools

Maven : Apache’s Java‑centric project build and dependency management tool.

Gradle : A flexible build automation tool using Groovy or Kotlin DSLs.

API Request Tools

Postman : A popular Chrome extension for testing and debugging HTTP requests.

Containers

Docker : An open‑source container engine that packages applications and dependencies into portable containers.

Cluster Management

Kubernetes : An open‑source platform for automating deployment, scaling, and operation of containerized applications.

Image Registry

Harbor : An open‑source artifact repository with role‑based access control, vulnerability scanning, and image management.

Runtime Environment

Operating System

Linux (CentOS 7+) : A free, Unix‑like OS supporting multi‑user, multi‑tasking, and multi‑CPU workloads.

Web Servers

Tomcat (8+) : A lightweight Java servlet container commonly used for development and small‑to‑medium deployments.

Nginx : A lightweight web server and reverse proxy.

Node.js : A server‑side JavaScript runtime.