Erlang HTTP

Open-source Erlang projects categorized as HTTP
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Erlang HTTP2 REST WebSocket Functional
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Top 8 Erlang HTTP Projects

HTTP

  1. cowboy

    Small, fast, modern HTTP server for Erlang/OTP.

    Project mention: Building HTTP/JSON API In Gleam: Introduction | dev.to | 2024-12-18

    You may have realised that I said mist is a web server written in Gleam. That’s because you can use web servers (literally any code) written in Erlang or Elixir, in Gleam. There’s Gleam Cowboy, which is an adapter for the cowboy server that’s written in Erlang.

  2. InfluxDB

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  3. CouchDB

    Seamless multi-primary syncing database with an intuitive HTTP/JSON API, designed for reliability

    Project mention: Sync Engines Are the Future | news.ycombinator.com | 2025-03-21

    The author would be excited to learn that CouchDB solves this problem since 20 years.

    The use case the article describes is exactly the idea behind CouchDB: a database that is at the same time the server, and that's made to be synced with the client.

    You can even put your frontend code into it and it will happily serve it (aka CouchApp).

    https://couchdb.apache.org

  4. hackney

    simple HTTP client in Erlang

  5. gun

    HTTP/1.1, HTTP/2, Websocket client (and more) for Erlang/OTP. (by ninenines)

  6. cowlib

    Support library for manipulating Web protocols.

  7. katt

    KATT (Klarna API Testing Tool) is an HTTP-based API testing tool for Erlang.

  8. rest

    ☕ REST: RFC-2616 Framework (by synrc)

  9. SaaSHub

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  10. lhttpc

    What used to be here -- this is a backwards-compat user and repo m(

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

Erlang HTTP discussion

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Erlang HTTP related posts

  • Fsync() after open() is an elaborate no-op

    1 project | news.ycombinator.com | 14 Mar 2025

  • Building HTTP/JSON API In Gleam: Introduction

    3 projects | dev.to | 18 Dec 2024

  • Developers Now Required to Share Phone Number and Address on EU App Store

    1 project | news.ycombinator.com | 19 Oct 2024

  • Why Sync Engines Might Be the Future of Web Applications

    1 project | dev.to | 17 Sep 2024

  • MongoDB takes a swing at PostgreSQL after claiming wins against rival

    1 project | news.ycombinator.com | 30 Aug 2024

  • Creating an offline node.js app, but what can I use as a database?

    1 project | /r/learnprogramming | 14 May 2023

  • Erlang: The coding language that finance forgot

    9 projects | news.ycombinator.com | 2 Feb 2023
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    www.influxdata.com | 16 May 2025
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Index

What are some of the best open-source HTTP projects in Erlang? This list will help you:

# Project Stars
1 cowboy 7,378
2 CouchDB 6,527
3 hackney 1,350
4 gun 913
5 cowlib 283
6 katt 120
7 rest 83
8 lhttpc 1

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