benoitc/hackney

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1420 stars · 454 forks observed · 2026-10-08

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

hackney is an HTTP client library for Erlang supporting HTTP/1.1, HTTP/2, and experimental HTTP/3, with connection pooling, streaming, async responses, and WebSocket/WebTransport clients. It runs each connection in its own process for isolation and includes SSL verification by default.

Use cases

• make HTTP requests from Erlang or Elixir
• stream large file uploads and downloads without loading into memory
• pool and reuse HTTP connections for high-throughput services
• consume WebSocket APIs from the BEAM
• call HTTP/2 or HTTP/3 endpoints with protocol negotiation
• fetch responses asynchronously as messages

When to choose

• you need a battle-tested HTTP client on Erlang/Elixir with pooling and streaming
• you want HTTP/2 multiplexing or to experiment with HTTP/3 on the BEAM
• you need WebSocket or WebTransport client support in Erlang

When to avoid

• you need a simple script-friendly client in Elixir where Finch or Req may be more idiomatic
• you require guaranteed production HTTP/3 support, which is still experimental
• you are outside the BEAM ecosystem

Facets

library · maturity active

http-client websocket web-development backend networking apis elixir cross-platform serverless http2 http3 quic connection-pooling streaming webtransport elixir-compatible

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