High-performance RPC framework gRPC 1.40.0 released

gRPC is a modern open source high-performance remote procedure call (RPC) framework that can run in any environment. It can effectively connect services within and between data centers through pluggable support for load balancing, tracking, health checks, and authentication

HarmonyOS professional certification level introduction

Engineer (HCIA): proficient development experience, solid theoretical foundation, senior engineer (HCIP): advanced development, master the ability to develop complex scenarios, expert (HCIE): master full-scenario solutions, planning, design and system tuning ability