google/promises
Promises is a modern framework that provides a synchronization construct for Swift and Objective-C. observed · 2026-08-28
Health v2 · maintenance only
89/100
- Activity 86
- Release rhythm 87
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: 0
- age_days: 3148
- days_rel: 85
- days_push: 85
- n_releases_24m: 2
Adoption not part of the score
3829 stars · 314 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Google's Promises is a framework providing a synchronization construct for Swift and Objective-C to simplify writing asynchronous code. It offers promise/future semantics with chaining, error handling, and combinators like All, Race, and Retry.
Use cases
- write async code in Swift without callback nesting
- chain asynchronous operations with then/catch
- wait for multiple async tasks to complete
- add timeouts and retries to async operations
- interoperate promises between Objective-C and Swift
When to choose
- you're building iOS/macOS/tvOS/watchOS apps in Swift or Objective-C
- you need promise/future semantics with ObjC-Swift interop
- you want battle-tested async utilities like retry, race, and timeout
When to avoid
- you're using Swift concurrency (async/await) exclusively
- your project is not on Apple platforms
- you need promises in JavaScript, Python, or other languages
Facets
library · maturity stable
concurrency developer-tools developer-tools cross-platform cpp promises futures objective-c swift asynchronous-programming apple-platforms macos ios
1 source
- readme: https://github.com/google/promises · fetched 2026-08-28 · 6727e85b0920
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| google/promises | main | 89 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem