# BoltsFramework/Bolts-Swift

Bolts is a collection of low-level libraries designed to make developing mobile apps easier.

Repository: https://github.com/BoltsFramework/Bolts-Swift
Canonical: https://ross.abutalabs.com/products/bolts-swift
Language: Swift
License: NOASSERTION
License Family: other
Last push: 2024-05-20T03:22:17+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3821, "days_push": 835, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1319, forks 126 (observed 2026-08-28T04:04:21.674282+00:00)

## What it is
Bolts-Swift is a collection of low-level Swift libraries originally built by Parse and Facebook, best known for its complete futures/promises implementation called Tasks. Tasks represent asynchronous operation results and support chaining, composition, parallelism, and structured error handling without nested callbacks.

## Use cases
- handle asynchronous operations in Swift without callback pyramids
- chain async tasks with composable error handling
- run parallel async operations and combine their results
- implement futures/promises pattern in iOS apps
- avoid blocking threads while waiting on async results

## When to choose
- you maintain a legacy iOS/OS X codebase already using Bolts or Parse
- you want a lightweight, dependency-free futures/promises library for Swift
- you need task chaining that works with any threading model like dispatch queues or operation queues

## When to avoid
- you are starting a new Swift project - Swift's built-in async/await and structured concurrency are the modern standard
- you need a broadly maintained library - development is minimal and the project is effectively in maintenance mode
- you need more than task concurrency - the library's other components were deprecated in favor of dedicated libraries

## Facets
- artifact type: library
- maturity: maintenance
- function: concurrency, error-handling
- domain: mobile-development, developer-tools
- platform: -
- tags: futures, promises, async-tasks, swift-library, parse, ios, macos, swift

## Member repositories
- BoltsFramework/Bolts-Swift (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:21.674282+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:47:52.225045+00:00, confidence not recorded.
  - readme: https://github.com/BoltsFramework/Bolts-Swift (fetched 2026-08-28T04:04:21.674282+00:00, sha 402f9b9bc68f)
- Data as of 2026-08-30T08:39:29.467469+00:00.