hammer · Elixir Observer

hammer

A rate-limiter with plugable backends.

Package Resources

ExHammer/hammer

Stars

915

Unreleased Activity

First Release

8

years ago

Last Release

19

days ago

Downloads

531.1k

last 90 days

Last Stable Version

7.4.0

Activity

last year

Pull Requests

Open 2

Merged 30

Latest Merged Pull Requests

chore: Release 7.4.0

epinault merged 19 days ago

fix: guard reset path against concurrent overwrites in ETS and Atomic backends

epinault merged 24 days ago

Add :fix_window_per_key algorithm for ETS and Atomic backends

epinault merged 21 days ago

Bump ex_doc from 0.40.1 to 0.40.2

epinault merged 26 days ago

Bump credo from 1.7.17 to 1.7.18

epinault merged 26 days ago

Issues

Open 1

Closed 7

Version 7.4.0

Published May 2026 •

Elixir Version Requirement ~> 1.14

Documentation for 7.4.0

This package has no dependencies

Changelog for 7.4.0

Inspect source for 7.4.0

Community

Article
Elixir/Phoenix Security: Rate Limits for Authentication with Hammer

Practical guide to adding authentication rate limits in Phoenix with Hammer, including risks and configuration.

Video
ElixirCasts #172 — Rate-limiting a Phoenix API with Hammer

Screencast implementing per-user API rate limiting using Hammer and returning 429 responses.

Article
Rate Limits Phoenix

Blog post showing how to add a Hammer-based rate limiter plug to a Phoenix API pipeline.

Article
How to make rate limiting in Phoenix 1.7? (community tips)

Elixir Forum thread discussing Hammer backends (ETS/Redis) and approaches to per-role limits.

Article
Building a Distributed Rate Limiter in Elixir with HashRing

AppSignal article that includes examples wrapping Hammer for clustered rate limiting patterns.

Related Packages

57 packages

ssl_verify_fun

SSL verification library

certifi

CA bundle adapted from Mozilla by https://certifi.io

castore

Up-to-date CA certificate store.

tls_certificate_check

CA store + Partial chain handler