An open-source, comprehensive microservice framework offers high performance right out of the box, ensuring compatibility with widely used ecosystems and supporting multiple programming languages. It guarantees service contracts via OpenAPI and features one-click scaffolding to expedite the development of microservice applications. This solution enables the ecological extension for various programming languages, including Java, Golang, PHP, and NodeJS. Apache ServiceComb serves as a robust open-source microservices framework, comprising several components that can be tailored to diverse scenarios through strategic combinations. This guide is designed to help newcomers swiftly get acquainted with Apache ServiceComb, making it an ideal starting point for beginners. Additionally, the framework allows for a separation between programming and communication models, enabling developers to integrate any desired communication model as needed. Consequently, application developers can prioritize API development while effortlessly adapting their communication strategies during deployment. With this flexibility, the framework enhances productivity and streamlines the microservice application lifecycle.