mtrudel/bandit
Bandit is a high-performance, Plug-compatible HTTP server for the Elixir ecosystem, supporting HTTP/1.1, HTTP/2, and WebSocket protocols. It provides a complete implementation of the HTTP/2 and WebSocket specifications, including frame serialization, state management, and per-message deflate support. The system is designed to serve any standard Plug application with robust telemetry and protocol compliance.
63.6
Adequate · 1 August 2026
5.8k
lines of production code
Elixir
primary language
1
bus factor · 56 authors in all
3
measurements over time
How it got here
2019 · WebSocket implementation and project governance
This period focused on establishing project governance by adding standard configuration and license files, while simultaneously implementing explicit WebSocket masking logic in the codebase. The release also updated dependencies to support Elixir 1.13 and refined the test suite configuration.
4 changes
2020–2021 · HTTP/2 and protocol support
The project introduced Bandit as a new Plug-compatible HTTP server, implementing full HTTP/1.1 and HTTP/2 protocol support with automatic selection and WebSocket upgrades. This period focused on building the core HTTP/2 handler, frame serialization, and associated test infrastructure to ensure protocol compliance and stability.
7 changes
2022–2025 · WebSocket and HTTP/1.1 protocol hardening
This period focused on refactoring the WebSocket implementation into a dedicated handler with robust state management and structured frame types. Comprehensive test suites were added for both WebSocket and HTTP/1.1 protocols to ensure protocol compliance and correct frame serialization. The work also included minor asset updates and improvements to logging and telemetry coverage.
5 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 1 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 13d0143b14 — the exact code this score is about.
- Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.