#Socket.IO-Client-Swift Socket.IO-client for iOS/OS X.

##Example

let socket = SocketIOClient(socketURL: "localhost:8080")

socket.on("connect") {data, ack in
    print("socket connected")
}

socket.on("currentAmount") {data, ack in
    if let cur = data[0] as? Double {
        socket.emitWithAck("canUpdate", cur)(timeoutAfter: 0) {data in
            socket.emit("update", ["amount": cur + 2.50])
        }

        ack?.with("Got your currentAmount", "dude")
    }
}

socket.connect()

##Objective-C Example

SocketIOClient* socket = [[SocketIOClient alloc] initWithSocketURL:@"localhost:8080" opts:nil];

[socket on:@"connect" callback:^(NSArray* data, SocketAckEmitter* ack) {
    NSLog(@"socket connected");
}];

[socket on:@"currentAmount" callback:^(NSArray* data, SocketAckEmitter* ack) {
    double cur = [[data objectAtIndex:0] floatValue];

    [socket emitWithAck:@"canUpdate" withItems:@[@(cur)]](0, ^(NSArray* data) {
        [socket emit:@"update" withItems:@[@{@"amount": @(cur + 2.50)}]];
    });

    [ack with:@[@"Got your currentAmount, ", @"dude"]];
}];

[socket connect];

##Features

• Supports socket.io 1.0+
• Supports binary
• Supports Polling and WebSockets
• Supports TLS/SSL
• Can be used from Objective-C

##Installation Requires Swift 2/Xcode 7

If you need Swift 1.2/Xcode 6.3/4 use v2.4.5 (Pre-Swift 2 support is no longer maintained)

If you need Swift 1.1/Xcode 6.2 use v1.5.2. (Pre-Swift 1.2 support is no longer maintained)

Carthage

Add this line to your Cartfile:

github "socketio/socket.io-client-swift" ~> 3.1.5 # Or latest version

Run carthage update --platform ios,macosx.

Manually (iOS 7+)

1. Copy the SocketIOClientSwift folder into your Xcode project. (Make sure you add the files to your target(s))
2. If you plan on using this from Objective-C, read this on exposing Swift code to Objective-C.

CocoaPods 0.36.0 or later (iOS 8+)

Create Podfile and add pod 'Socket.IO-Client-Swift':

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '8.0'
use_frameworks!

pod 'Socket.IO-Client-Swift', '~> 3.1.5' # Or latest version

Install pods:

$ pod install

Import the module:

Swift:

import Socket_IO_Client_Swift

Objective-C:

#import <Socket_IO_Client_Swift/Socket_IO_Client_Swift-Swift.h>

CocoaSeeds

Add this line to your Seedfile:

github "socketio/socket.io-client-swift", "v3.1.4", :files => "SocketIOClientSwift/*.swift" # Or latest version

Run seed install.

##API Constructors

init(socketURL: String, opts: NSDictionary? = nil) - Constructs a new client for the given URL. opts can be omitted (will use default values) note: If your socket.io server is secure, you need to specify https in your socketURL.

Options

• connectParams: [String: AnyObject]? - Dictionary whose contents will be passed with the connection.
• reconnects: Bool Default is true
• reconnectAttempts: Int Default is -1 (infinite tries)
• reconnectWait: Int Default is 10
• forcePolling: Bool Default is false. true forces the client to use xhr-polling.
• forceWebsockets: Bool Default is false. true forces the client to use WebSockets.
• nsp: String Default is "/". Connects to a namespace.
• cookies: [NSHTTPCookie]? An array of NSHTTPCookies. Passed during the handshake. Default is nil.
• log: Bool If true socket will log debug messages. Default is false.
• logger: SocketLogger If you wish to implement your own logger that conforms to SocketLogger you can pass it in here. Will use the default logging defined under the protocol otherwise.
• sessionDelegate: NSURLSessionDelegate Sets an NSURLSessionDelegate for the underlying engine. Useful if you need to handle self-signed certs. Default is nil.
• path: String - If the server uses a custom path. ex: "/swift". Default is ""
• extraHeaders: [String: String]? - Adds custom headers to the initial request. Default is nil.
• handleQueue: dispatch_queue_t - The dispatch queue that handlers are run on. Default is the main queue.

Methods

1. on(event: String, callback: NormalCallback) - Adds a handler for an event. Items are passed by an array. ack can be used to send an ack when one is requested. See example.
2. once(event: String, callback: NormalCallback) - Adds a handler that will only be executed once.
3. onAny(callback:((event: String, items: AnyObject?)) -> Void) - Adds a handler for all events. It will be called on any received event.
4. emit(event: String, _ items: AnyObject...) - Sends a message. Can send multiple items.
5. emit(event: String, withItems items: [AnyObject]) - emit for Objective-C
6. emitWithAck(event: String, _ items: AnyObject...) -> (timeoutAfter: UInt64, callback: (NSArray?) -> Void) -> Void - Sends a message that requests an acknowledgement from the server. Returns a function which you can use to add a handler. See example. Note: The message is not sent until you call the returned function.
7. emitWithAck(event: String, withItems items: [AnyObject]) -> (UInt64, (NSArray?) -> Void) -> Void - emitWithAck for Objective-C. Note: The message is not sent until you call the returned function.
8. connect() - Establishes a connection to the server. A "connect" event is fired upon successful connection.
9. connect(timeoutAfter timeoutAfter: Int, withTimeoutHandler handler: (() -> Void)?) - Connect to the server. If it isn't connected after timeoutAfter seconds, the handler is called.
10. close() - Closes the socket. Once a socket is closed it should not be reopened.
11. reconnect() - Causes the client to reconnect to the server.
12. joinNamespace() - Causes the client to join nsp. Shouldn't need to be called unless you change nsp manually.
13. leaveNamespace() - Causes the client to leave the nsp and go back to /

Client Events

1. connect - Emitted when on a successful connection.
2. disconnect - Emitted when the connection is closed.
3. error - Emitted on an error.
4. reconnect - Emitted when the connection is starting to reconnect.
5. reconnectAttempt - Emitted when attempting to reconnect.

##Detailed Example A more detailed example can be found here

##License MIT