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sneako/finch

Finch is an HTTP client library for Elixir that manages connection pools for HTTP/1.1 and HTTP/2 protocols. It provides a flexible, user-managed pool system that supports dynamic configuration, multiple connection strategies, and comprehensive observability through telemetry. The system handles connection lifecycle, request multiplexing, and error wrapping, allowing developers to isolate and scale HTTP traffic efficiently.

66.6

Adequate · 6 August 2026

4k

lines of production code

Elixir

primary language

5

bus factor · 74 authors in all

3

measurements over time

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How it got here

2019 · pool management and HTTP/2 support

This period focused on introducing user-managed connection pools with tagging for isolation, alongside a major refactor to support HTTP/2 and Unix sockets. The architecture shifted to a pool-based system with standardized error handling and modernized dependencies.

6 changes

2020–2026 · HTTP/2 and pool strategy implementation

This period focused on expanding the Finch library with full HTTP/2 support, including a new connection pool, streaming capabilities, and request multiplexing. It also introduced configurable pool worker selection strategies and dynamic resizing, while significantly expanding test coverage for both HTTP/1.1 and HTTP/2 protocols.

8 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 6 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit 4b9b7b1eb3 — the exact code this score is about.
  • Scored under rubric rubric-2026.08.19. Score the same commit under that rubric and you get the same number.
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