google / promises

git clone https://github.com/google/promises.git 2.4.1 · 4mo ago 🔥 on GitHub Trending today

Promises is a modern framework that provides a synchronization construct for Swift and Objective-C.

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Star history starts 2026-10-20; the chart appears after the second daily snapshot.

LanguageObjective-C

LicenseApache-2.0

Created2018-01-19 (8y ago)

Last push4mo ago

Watchers70

OwnerOrganization

Seen on GitHub Trending

2026-10-20 — #4 daily in objective-c
2026-10-20 — #10 monthly in objective-c · +4 ★
2026-10-20 — #7 weekly in objective-c · +3 ★

GitHub topics

promises futures objective-c swift library framework

Links

GitHub: github.com/google/promises
Releases · Issues · Hacker News mentions

README excerpt

# Promises
Promises is a modern framework that provides a synchronization construct for
Objective-C and Swift to facilitate writing asynchronous code.
* Introduction
 * The problem with async
 code
 * Promises to the rescue
 * What is a promise?
* Framework
 * Features
 * Benchmark
* Getting started
 * Add dependency
 * Import
 * Adopt
* Basics
 * Creating promises
 * Async
 * Do
 * Pending
 * Resolved
 * Observing fulfillment
 * Then
 * Observing rejection
 * Catch
* Extensions
 * All
 * Always
 * Any
 * AwaitPromise
 * Delay
 * Race
 * Recover
 * Reduce
 * Retry
 * Timeout
 * Validate
 * Wrap
* Advanced topics
 * Default dispatch queue
 * Ownership and retain
 cycles
 * Testing
 * Objective-C Swift
 interoperability
 * Dot-syntax in Objective-C
* Anti-patterns
 * Broken chain
 * Nested promises