= gun(7) == Name gun - HTTP/1.1, HTTP/2 and Websocket client for Erlang/OTP == Description Gun is an HTTP client for Erlang/OTP with support for the HTTP/1.1, HTTP/2 and Websocket protocols. Gun aims to provide an easy to use, asynchronous and always-connected client. It maintains a permanent connection to the server and reconnects automatically when necessary. == Modules * link:man:gun(3)[gun(3)] - Asynchronous HTTP client == Dependencies * link:man:cowlib(7)[cowlib(7)] - Support library for manipulating Web protocols * ssl - Secure communication over sockets All these applications must be started before the `gun` application. To start Gun and all dependencies at once: [source,erlang] ---- {ok, _} = application:ensure_all_started(gun). ---- == Environment The `gun` application does not define any application environment configuration parameters. == See also link:man:cowlib(7)[cowlib(7)]