gRPC на Go: от внутреннего устройства до архитектуры

Materials from the video - https://t.me/igoroutine/73 Programming courses - https://igoroutine.courses/?utm_sourc... In this video, we move step by step from theory to practice. First, we look at how modern application architecture is structured and why gRPC is increasingly chosen in microservices. We discuss the history of the technology and take a deep dive into HTTP 2.0, comparing it with HTTP 1.0 to understand where the speed and efficiency come from. Then we move on to Protocol Buffers: data types, optional, enum, oneof, map, nested and repeated messages, deprecated and reserved fields, as well as contract version compatibility. I show how to define a .proto file, generate code, and structure the development process. In DEMO format, we build a full-fledged Go service: contract definition, validation, code generation with buf, application startup, and endpoint testing. We also cover gRPC Gateway, Swagger generation for REST, and approaches to implementing streams in REST. In the end, we summarize practical conclusions and discuss architectural decisions. Telegram: https://t.me/igoroutine VK: https://vk.com/igoroutine Instagram:   / igoroutine   YouTube:    / @igoroutine   Timestamps: 00:00:00 - Introduction 00:00:22 - The Real World. What Modern Application Architecture Looks Like 00:07:47 - gRPC. History 00:16:43 - HTTP 2.0. Internal Structure and Comparison with HTTP 1.0 00:32:34 - gRPC. Internal Architecture and Usage 00:35:21 - Protocol Buffers. Serialization Protocol in gRPC. Comparison with JSON and XML 00:38:27 - Protocol Buffers. Scalar Types 00:38:56 - Protocol Buffers. Well-Known Types 00:39:53 - Protocol Buffers. Common Types 00:40:48 - Protocol Buffers. Optional 00:41:38 - Protocol Buffers. Enum 00:41:55 - Protocol Buffers. Deprecated Fields 00:43:34 - Protocol Buffers. Reserved Fields 00:46:19 - Protocol Buffers. Nested Messages & Repeated 00:47:00 - Protocol Buffers. Oneof 00:47:35 - Protocol Buffers. Map 00:47:44 - Protocol Buffers. Serialization Implementation 00:50:02 - Protocol Buffers. gRPC Streams 00:51:47 - Protocol Buffers. What the Development Process Looks Like 00:52:12 - Protocol Buffers. Contract Version Compatibility 00:53:13 - How to Define a .proto Contract (DEMO) 00:54:00 - How to Generate Code from a .proto File (DEMO) 00:57:05 - Building a Full Application (Service). Writing the Contract (DEMO) 00:59:50 - Building a Full Application (Service). Contract-Level Validation (DEMO) 01:00:57 - Building a Full Application (Service). Generation, buf, easyp (DEMO) 01:05:38 - Additional Material 01:05:53 - Building a Full Application (Service). Running Code Generation (DEMO) 01:06:50 - Building a Full Application (Service). Running the Application (DEMO) 01:15:29 - Building a Full Application (Service). Calling the Service Endpoints (DEMO) 01:17:22 - gRPC Gateway. Theory 01:18:15 - gRPC Gateway. Practice (DEMO) 01:22:13 - Swagger Generation for REST 01:22:54 - How to Implement Streams in REST 01:24:30 - Conclusions 01:25:17 - Final