Gleam Gun
Gleam bindings to gun, the Erlang HTTP/1.1, HTTP/2 and Websocket client.
Fork of nerf that adds connection options.
Currently this library is very basic and only supports a portion of the websocket API, and TLS is not verified! Hopefully in future a better websocket client written in Gleam can replace this one.
Usage
This package can be added to your Gleam project like so.
gleam add gleam_gun
Then use it in your Gleam application.
import gleam_gun/websocket
import gleam/erlang
import gleam/erlang/atom
pub fn main() {
// Set connection options
let conn_opts = [
websocket.Transport(atom.create_from_string("tls")),
websocket.TransportOpts([websocket.Verify(atom.create_from_string("verify_none"))]),
]
// Connect
assert Ok(conn) = websocket.connect("example.com", "/ws", 8080, [], conn_opts)
// Send some messages
websocket.send(conn, "Hello")
websocket.send(conn, "World")
// Receive some messages
let assert Ok(Text("Hello")) = websocket.receive(conn, 500)
let assert Ok(Text("World")) = websocket.receive(conn, 500)
// Close the connection
websocket.close(conn)
}
Testing this library
podman run --rm --detach -p 8080:8080 --name echo jmalloc/echo-server
gleam test