65 lines
2.3 KiB
JavaScript
65 lines
2.3 KiB
JavaScript
// NOTE: The contents of this file will only be executed if
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// you uncomment its entry in "assets/js/app.js".
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// Bring in Phoenix channels client library:
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import {Socket} from "phoenix"
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// And connect to the path in "<%= web_prefix %>/endpoint.ex". We pass the
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// token for authentication. Read below how it should be used.
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let socket = new Socket("/socket", {params: {token: window.userToken}})
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// When you connect, you'll often need to authenticate the client.
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// For example, imagine you have an authentication plug, `MyAuth`,
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// which authenticates the session and assigns a `:current_user`.
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// If the current user exists you can assign the user's token in
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// the connection for use in the layout.
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//
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// In your "<%= web_prefix %>/router.ex":
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//
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// pipeline :browser do
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// ...
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// plug MyAuth
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// plug :put_user_token
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// end
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//
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// defp put_user_token(conn, _) do
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// if current_user = conn.assigns[:current_user] do
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// token = Phoenix.Token.sign(conn, "user socket", current_user.id)
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// assign(conn, :user_token, token)
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// else
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// conn
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// end
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// end
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//
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// Now you need to pass this token to JavaScript. You can do so
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// inside a script tag in "<%= web_prefix %>/templates/layout/app.html.heex":
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//
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// <script>window.userToken = "<%%= assigns[:user_token] %>";</script>
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//
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// You will need to verify the user token in the "connect/3" function
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// in "<%= web_prefix %>/channels/user_socket.ex":
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//
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// def connect(%{"token" => token}, socket, _connect_info) do
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// # max_age: 1209600 is equivalent to two weeks in seconds
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// case Phoenix.Token.verify(socket, "user socket", token, max_age: 1_209_600) do
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// {:ok, user_id} ->
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// {:ok, assign(socket, :user, user_id)}
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//
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// {:error, reason} ->
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// :error
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// end
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// end
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//
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// Finally, connect to the socket:
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socket.connect()
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// Now that you are connected, you can join channels with a topic.
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// Let's assume you have a channel with a topic named `room` and the
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// subtopic is its id - in this case 42:
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let channel = socket.channel("room:42", {})
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channel.join()
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.receive("ok", resp => { console.log("Joined successfully", resp) })
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.receive("error", resp => { console.log("Unable to join", resp) })
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export default socket
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