gossamer - v1.0.1

gossamer/web_socket

Types

WebSocket

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Provides the API for creating and managing a WebSocket connection to a server, as well as for sending and receiving data on the connection.

pub type WebSocket

Values

binary_type

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pub fn binary_type(socket: WebSocket) -> binary_type.BinaryType

Returns a value that indicates how binary data from the WebSocket object is exposed to scripts.

buffered_amount

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pub fn buffered_amount(socket: WebSocket) -> Int

Returns the number of bytes of application data (UTF-8 text and binary data) that have been queued using send but not yet been transmitted to the network.

If the WebSocket connection is closed, this attribute’s value will only increase with each call to the send method. (The number does not reset to zero once the connection closes.)

close

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pub fn close(socket: WebSocket) -> Nil

Closes the WebSocket connection.

close_with

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pub fn close_with(
  socket: WebSocket,
  code: Int,
  reason: String,
) -> Nil

Closes the WebSocket connection, using the given code as the WebSocket connection close code and reason as the WebSocket connection close reason.

extensions

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pub fn extensions(socket: WebSocket) -> String

Returns the extensions selected by the server, if any.

new

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pub fn new(url: String) -> WebSocket

Creates a new WebSocket connection to the given URL.

Examples

let ws = web_socket.new("ws://localhost:8080")

new_with_protocols

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pub fn new_with_protocols(
  url: String,
  protocols: List(String),
) -> WebSocket

Creates a new WebSocket connection to the given URL with the specified sub-protocols.

Examples

let ws = web_socket.new_with_protocols("ws://localhost:8080", ["json"])

on_close

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pub fn on_close(
  socket: WebSocket,
  handler: fn(close_event.CloseEvent) -> Nil,
) -> Nil

on_error

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pub fn on_error(socket: WebSocket, handler: fn() -> Nil) -> Nil

on_message

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pub fn on_message(
  socket: WebSocket,
  handler: fn(message_event.MessageEvent) -> Nil,
) -> Nil

on_open

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pub fn on_open(socket: WebSocket, handler: fn() -> Nil) -> Nil

protocol

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pub fn protocol(socket: WebSocket) -> String

Returns the subprotocol selected by the server, if any. It can be used in conjunction with the protocols parameter to perform subprotocol negotiation.

ready_state

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pub fn ready_state(socket: WebSocket) -> Int

Returns the state of the WebSocket object’s connection.

send

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pub fn send(socket: WebSocket, data: String) -> Nil

Transmits string data using the WebSocket connection.

send_dynamic

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pub fn send_dynamic(
  socket: WebSocket,
  data: dynamic.Dynamic,
) -> Nil

Transmits data using the WebSocket connection. Data can be a string, a Blob, an ArrayBuffer, or an ArrayBufferView.

set_binary_type

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pub fn set_binary_type(
  socket: WebSocket,
  value: binary_type.BinaryType,
) -> Nil

Can be set, to change how binary data is returned. The default is Blob.

url

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pub fn url(socket: WebSocket) -> String

Returns the URL that was used to establish the WebSocket connection.

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