kataras/iris

Iris is a web framework for Go (Golang) that prioritizes speed and a rich set of built-in features. A web framework is a toolkit that handles the repetitive work of building a web server or API, routing incoming requests to the right code, parsing request data, managing sessions, handling authentication, and more, so developers can focus on their application's actual logic rather than reinventing these building blocks. Iris claims to be among the fastest HTTP web frameworks available for Go. It supports HTTP/2 (the modern version of the web protocol that allows faster, multiplexed connections), WebSockets (for real-time two-way communication like chat or live updates), gRPC (a high-performance communication protocol between services), and MVC architecture (Model-View-Controller, a pattern that organizes code into separate layers for data, display, and logic). Out of the box it includes middleware for things like authentication, rate limiting, CORS (rules for which websites can access your API), caching, and more. It also has built-in support for server-side templating using engines like HTML, Handlebars, Pug, and Django-style templates. You would use Iris when building a Go-based web application or REST API and want a high-performance, batteries-included framework without assembling components manually. It is particularly appealing for developers who want a large standard feature set without adding many extra packages.