Interview with Du Huan (Senior Engineer, Didi R Lab) on Go, Large‑Scale Microservice Framework Design, and Gopher China 2019

Du Huan, a senior expert engineer at Didi’s R Lab, has been working with Go since 2011 and has contributed many Go‑related open‑source projects (https://github.com/huandu). He joined Didi about four years ago, promoting Go internally and building the company’s real‑time delivery platform and the foundational architecture of R Lab.

He believes Go’s low entry and maintenance cost, concise syntax, and strong standard library make it easy for developers from other language backgrounds to become productive Go developers. These traits give Go a competitive advantage for building high‑performance, readable, and stable business code quickly.

Regarding Go’s dominance in cloud‑native scenarios, Du points out that Go’s ability to operate at the system level (direct memory access, OS calls, even assembly) makes it a “new C”. Its simple syntax and fast learning curve attract many users, and its focus on multi‑core, high‑concurrency, low‑latency, and virtualization aligns perfectly with the rapid growth of cloud computing.

He expects future improvements in Go’s low‑latency GC, generics, dependency management, and standard library enrichment. He is especially optimistic about code‑generation tools that can leverage Go’s strict yet simple syntax to produce complex, robust programs.

When asked about past Gopher China conferences, Du recalled solid talks such as the CGO session and expressed a desire to see more discussions on major Go trends, looking forward to the “Future of Go” panel at the upcoming event.

His advice for graduating Gophers is to be confident in their Go skills, strengthen fundamentals (computer science basics, design patterns, networking), and broaden their knowledge beyond Go to increase employability.

For enterprises transitioning to Go, he recommends dedicated owners for library selection and code review, as open‑source library quality can vary. He shared personal experience of fixing bugs in popular libraries and maintaining internal forks when upstream responses were slow.

Du’s motivation to attend Gopher China stems from Didi’s internal recommendation and his wish to share valuable insights with the community.

He frequently collaborates with Tao Wen (https://github.com/taowen) and admires Go libraries such as Modern Go Programming, plz (https://github.com/v2pro/plz), and json‑iterator/go (https://github.com/json-iterator/go).

His talk at the conference is titled “Large‑Scale Microservice Framework Design Practice”. He will discuss how a large‑scale framework differs from typical microservice frameworks, focusing on designing an open yet controlled environment that serves heterogeneous services, and will share key architectural decisions and technical challenges.

The source also includes a volunteer recruitment notice for Gopher China 2019 (Beijing‑only, 3 positions, benefits such as free attendance, limited‑edition T‑shirt, and direct contact with Go experts).