SwiftWebSocket 2.7.0

Maintained by Josh Baker.

You want to add pod 'SwiftWebSocket', '~> 2.7' similar to the following to your Podfile:

target 'MyApp' do
  pod 'SwiftWebSocket', '~> 2.7'
end

Then run a pod install inside your terminal, or from CocoaPods.app.

Alternatively to give it a test run, run the command:

pod try SwiftWebSocket

SwiftWebSocket 2.7.0

By
Josh Baker
tidwall

SwiftWebSocket

Conforming WebSocket (RFC 6455) client library for iOS and Mac OSX.

SwiftWebSocket passes all 521 of the Autobahn’s fuzzing tests, including strict UTF-8, and message compression.

Features

High performance.
100% conforms to Autobahn Tests. Including base, limits, compression, etc. Test results.
TLS / WSS support. Self-signed certificate option.
The API is modeled after the Javascript API.
Reads compressed messages (permessage-deflate). RFC 7692
Send pings and receive pong events.
Strict UTF-8 processing.
binaryType property to choose between [UInt8] or NSData messages.
Zero asserts. All networking, stream, and protocol errors are routed through the error event.
iOS / Objective-C support.

Example

func echoTest(){
    var messageNum = 0
    let ws = WebSocket("wss://echo.websocket.org")
    let send : ()->() = {
        messageNum += 1
        let msg = "\(messageNum): \(NSDate().description)"
        print("send: \(msg)")
        ws.send(msg)
    }
    ws.event.open = {
        print("opened")
        send()
    }
    ws.event.close = { code, reason, clean in
        print("close")
    }
    ws.event.error = { error in
        print("error \(error)")
    }
    ws.event.message = { message in
        if let text = message as? String {
            print("recv: \(text)")
            if messageNum == 10 {
                ws.close()
            } else {
                send()
            }
        }
    }
}

Custom Headers

let request = NSMutableURLRequest(URL: NSURL(string:"ws://url")!)
request.addValue("AUTH_TOKEN", forHTTPHeaderField: "Authorization")
request.addValue("Value", forHTTPHeaderField: "X-Another-Header")
let ws = WebSocket(request: request)

Reuse and Delaying WebSocket Connections

v2.3.0+ makes available an optional open method. This will allow for a WebSocket object to be instantiated without an immediate connection to the server. It can also be used to reconnect to a server following the close event.

For example,

let ws = WebSocket()
ws.event.close = { _ in
    ws.open()                 // reopen the socket to the previous url
    ws.open("ws://otherurl")  // or, reopen the socket to a new url
}
ws.open("ws://url") // call with url

Compression

The compression flag may be used to request compressed messages from the server. If the server does not support or accept the request, then connection will continue as normal, but with uncompressed messages.

let ws = WebSocket("ws://url")
ws.compression.on = true

Self-signed SSL Certificate

let ws = WebSocket("ws://url")
ws.allowSelfSignedSSL = true

Network Services (VoIP, Video, Background, Voice)

// Allow socket to handle VoIP in the background.
ws.services = [.VoIP, .Background]

Contact

Josh Baker @tidwall

License

SwiftWebSocket source code is available under the MIT License.