bucklescript-phx
v0.1.4
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BuckleScript binding for Phoenix Channel/Presence to Phoenix's official JavaScript client
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BuckleScript Phoenix
BuckleScript binding for Phoenix Channel/Presence to Phoenix's official JavaScript client.
This is usable now.
Feel free to create PRs.
- [X] Connect socket
- [X] Join channel
- [X] Push event
- [X] Handle event
- [X] Presence
- [ ] Support The Elm Architecture on BuckleScript (https://github.com/OvermindDL1/bucklescript-tea)
- [ ] Fallback support for polling.
To install
npm install -save bucklescript-phx
Please update your bsconfig.json
to make bsb
aware of this dependency
"bs-dependencies": [
"bucklescript-phx"
]
Notice:
Please add official Phoenix client as your dependency to make sure BuckleScript is able to require Phoenix's js.
Meta of Presence and payload of incoming event are decalred as
Js_json.t
which means you need to decode it with your prefered decoder (in TEA it is very convenient withJson.Decoder.decodeValue
).The bindings are based on https://github.com/DefinitelyTyped/DefinitelyTyped. There might be some error on mapping the types. Please help correct them if you find anything wrong. Thank you!
Here are the examples:
To join a channel:
open Phx
let handleReiceive event any =
match event with
| "ok" -> Js.log ("handleReiceive:" ^ event, "Joined")
| "error" -> Js.log ("handleReiceive:" ^ event, "Failed to join channel")
| _ -> Js.log ("handleReiceive:" ^ event, any)
let handleEvent event response =
let _ = Js.log ("handleEvent:" ^ event, response) in
()
let handleSyncState response =
let _ = Js.log ("handleSyncState", response) in
(*let _ = Js.log (Array.iter (fun key -> Js.log (Js_dict.unsafeGet response key)) (Js_dict.keys response) ) in*)
let _presences = Presence.syncState (Js.Dict.empty ()) response in
()
let handleSyncDiff diff =
let _ = Js.log ("handleSyncDiff:diff", diff) in
let presences = Presence.syncDiff (Js.Dict.empty ()) diff in
let _ = Js.log ("handleSyncDiff:presences", presences) in
()
let _ =
let socket = initSocket "/socket"
|> connectSocket
|> putOnClose (fun () -> Js.log "Socket closed") in
let channel = socket
|> initChannel "user:lobby" in
let _ = channel
|> putOn "from_server" (handleEvent "from:server")
|> putOnSyncState handleSyncState
|> putOnsyncDiff handleSyncDiff
|> joinChannel
|> putReceive "ok" (handleReiceive "ok")
|> putReceive "error" (handleReiceive "error") in
push "new:message" [%bs.obj { user = "Hello, Elixir! This is a greeting from BuckleScript!"} ] channel
Reasonml:
To join a channel:
open Phx
let handleReiceive = (event, any) =>
switch event {
| "ok" => Js.log(("handleReiceive:" ++ event, "Joined"))
| "error" => Js.log(("handleReiceive:" ++ event, "Failed to join channel"))
| _ => Js.log(("handleReiceive:" ++ event, any))
};
let handleEvent = (event, response) => {
let _ = Js.log(("handleEvent:" ++ event, response));
();
};
let handleSyncState = (response) => {
let _ = Js.log(("handleSyncState", response));
/*let _ = Js.log (Array.iter (fun key -> Js.log (Js_dict.unsafeGet response key)) (Js_dict.keys response) ) in*/
let _presences = Presence.syncState(Js.Dict.empty(), response);
();
};
let handleSyncDiff = (diff) => {
let _ = Js.log(("handleSyncDiff:diff", diff));
let presences = Presence.syncDiff(Js.Dict.empty(), diff);
let _ = Js.log(("handleSyncDiff:presences", presences));
();
};
{
let socket = initSocket("/socket") |> connectSocket |> putOnClose(() => Js.log("Socket closed"));
let channel = socket |> initChannel("user:lobby");
let _ =
channel
|> putOn("from_server", handleEvent("from:server"))
|> putOnSyncState(handleSyncState)
|> putOnsyncDiff(handleSyncDiff)
|> joinChannel
|> putReceive("ok", handleReiceive("ok"))
|> putReceive("error", handleReiceive("error"));
push("new:message", {"user": "Hello, Elixir! This is a greeting from BuckleScript!"}, channel);
};