Wire 3 : Tackling gRPC with Kotlin
summary
Wire 3 is a Kotlin rewrite that generates Kotlin code, adds a Gradle plugin, and ships coroutines-based gRPC APIs plus a multiplatform runtime; it targets proto2, preserves Protobuf backwards compatibility rules, and shows a serialized Person taking 10 bytes serialized in the demo. Generated Java from Google's tool balloons to ~900+ lines for a tiny proto, so Wire emphasizes compact, readable output. The team builds a whiteboard app using duplex gRPC over HTTP/2, a Misk server and Android 9 clients and the demo mostly works with one persistent RPC stream.
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chapters (11)
- 0:00Introduction
- 1:12Why use gRPC?
- 2:16Protocol buffers deep dive
- 8:45Protocol buffers backwards compatibility
- 12:59Why build Wire instead of Google Protobuf
- 15:53Wire 3 gRPC support
- 23:49Kotlin code generation in Wire
- 28:04Gradle plugin for Wire
- 30:12Demo setup and code walkthrough
- 35:35Live demo of gRPC in action
- 37:21Future plans and next steps
