Explore the fundamentals of gRPC technology in this informative conference talk from code::dive 2019. Discover use cases, example applications, and a comparison to REST API, highlighting the pros and cons of each approach. Learn from Michał Pawlik, a site reliability engineer at Nokia GS CS Network Engineering, as he shares insights from a recent internal project where gRPC was chosen over REST. Delve into topics such as JSON over HTTP, API documentation, Protocol Buffers, and gRPC principles. Gain practical knowledge through examples of protobuffer definition, implementation, and server setup. Understand the benefits of gRPC and its applications across various programming languages.