WWDC26: Build real-time apps and services with gRPC and Swift | Apple

Build engaging live experiences with gRPC in your Swift app and backend. gRPC is an open-source RPC framework designed for high-performance, bidirectional streaming APIs. Explore how the gRPC Swift package provides a modern, safe runtime built with Swift concurrency. Learn how integrated tools streamline your workflow and help you deliver real-time features with ease.

Explore related documentation, sample code, and more:
About gRPC: https://grpc.io/
gRPC Swift Extras: https://github.com/grpc/grpc-swift-extras
gRPC Swift Protobuf: https://github.com/grpc/grpc-swift-protobuf
gRPC Swift NIO Transport: https://github.com/grpc/grpc-swift-nio-transport
gRPC Swift: https://github.com/grpc/grpc-swift-2
Swift on Server: https://www.swift.org/server/
Meet Swift OpenAPI Generator: https://developer.apple.com/videos/play/wwdc2023/10171
Explore the Swift on Server ecosystem: https://developer.apple.com/videos/play/wwdc2024/10216
Meet Containerization: https://developer.apple.com/videos/play/wwdc2025/346

00:00 - Introduction
01:39 - Meet gRPC
02:13 - App overview and demo setup
03:30 - Defining the ListRaces RPC
04:30 - Setting up Xcode to generate gRPC code
07:50 - Managing the gRPC client lifecycle
09:36 - Protobuf message format and binary efficiency
12:33 - Implementing a bidirectional streaming RPC
20:11 - Deploying the service
23:11 - Next steps

More Apple Developer resources:
Video sessions: https://apple.co/VideoSessions
Documentation: https://apple.co/DeveloperDocs
Forums: https://apple.co/DeveloperForums
App: https://apple.co/DeveloperApp

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