Socket.io-client-swift: Not able to connect with objective c with namespace

[jaragones]

I have a project in objc (using "Socket.IO-Client-Swift" from pod installation) and I'm trying to connect to a socket on URL: https://subdomain.domain.com/word.

My objc code looks:

NSURL* url = [[NSURL alloc] initWithString:@"https://subdomain.domain.net/word"];
_manager = [[SocketManager alloc] initWithSocketURL:url config:@{@"log": @YES, @"compress": @YES}];
_socket = _manager.defaultSocket;

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

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

[self.socket onAny:^(SocketAnyEvent* e) {
   NSLog(@"<< %@", e.event);
}];

[self.socket connect];

Only event triggered is "connect" BUT server (black box for me) should return "connectedDevice" and not the one received since it is set to return this event (connectedDevice)when a new socket is connected. Am I doing something wrong? I cannot find any clue about it.

Logs on console are:

LOG SocketIOClient{/}: Adding handler for event: chrome.connected
LOG SocketIOClient{/}: Adding handler for event: connect
LOG SocketIOClient{/}: Adding handler for event: chrome.joined
LOG SocketIOClient{/}: Handling event: statusChange with data: [connecting]
<< statusChange
LOG SocketIOClient{/}: Joining namespace /
LOG SocketManager: Tried connecting socket when engine isn't open. Connecting
LOG SocketManager: Adding engine
LOG SocketEngine: Starting engine. Server: https://subdomain.domain.net/word
LOG SocketEngine: Handshaking
LOG SocketEnginePolling: Doing polling GET https://subdomain.domain.net/socket.io/?transport=polling&b64=1
LOG SocketEnginePolling: Got polling response
LOG SocketEnginePolling: Got poll message: 97:0{"sid":"Z1pN72vtFg_BFoGeAAHt","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":60000}2:40
LOG SocketEngine: Got message: 0{"sid":"Z1pN72vtFg_BFoGeAAHt","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":60000}
LOG SocketIOClient{/}: Handling event: ping with data: []
LOG SocketEngine: Got message: 40
<< ping
LOG SocketManager: Engine opened Connect
LOG SocketEnginePolling: Doing polling GET https://subdomain.domain.net/socket.io/?transport=polling&b64=1&sid=Z1pN72vtFg_BFoGeAAHt
LOG SocketIOClient{/}: Socket connected
LOG SocketEngine: Writing poll:  has data: false
LOG SocketIOClient{/}: Handling event: statusChange with data: [connected]
LOG SocketEnginePolling: Sending poll:  as type: 2
<< statusChange
LOG SocketEnginePolling: Created POST string: 1:2
LOG SocketIOClient{/}: Handling event: connect with data: ["/"]
LOG SocketEnginePolling: POSTing
<< connect
LOG SocketEnginePolling: Doing polling POST https://subdomain.domain.net/socket.io/?transport=polling&b64=1&sid=Z1pN72vtFg_BFoGeAAHt
event connect
LOG SocketParser: Parsing 0
LOG SocketParser: Decoded packet as: SocketPacket {type: 0; data: []; id: -1; placeholders: 0; nsp: /}
LOG SocketEnginePolling: Got polling response
LOG SocketEnginePolling: Got poll message: 1:3
LOG SocketEngine: Got message: 3
LOG SocketIOClient{/}: Handling event: pong with data: []
<< pong
LOG SocketEnginePolling: Doing polling GET https://subdomain.domain.net/socket.io/?transport=polling&b64=1&sid=Z1pN72vtFg_BFoGeAAHt
LOG SocketEngineWebSocket: Sending ws: probe as type: 2
LOG SocketEngine: Got message: 3probe
LOG SocketEngine: Received probe response, should upgrade to WebSockets
LOG SocketEngine: Upgrading transport to WebSockets
LOG SocketEnginePolling: Sending poll:  as type: 6
LOG SocketEnginePolling: Created POST string: 1:6
LOG SocketEnginePolling: POSTing
LOG SocketIOClient{/}: Handling event: pong with data: []
<< pong
LOG SocketEnginePolling: Got polling response
LOG SocketEnginePolling: Got poll message: 1:6
LOG SocketEngine: Got message: 6
LOG SocketEngine: Switching to WebSockets
LOG SocketEngineWebSocket: Sending ws:  as type: 5
LOG SocketEngine: Flushing probe wait
LOG SocketEngine: Writing ws:  has data: false
LOG SocketIOClient{/}: Handling event: ping with data: []
<< ping
LOG SocketEngineWebSocket: Sending ws:  as type: 2
LOG SocketEngine: Got message: 3
LOG SocketIOClient{/}: Handling event: pong with data: []
<< pong

I also tried to replace initial code with:

NSURL* url = [[NSURL alloc] initWithString:@"https://subdomain.domain.net"];
_manager = [[SocketManager alloc] initWithSocketURL:url config:@{@"log": @YES, @"compress": @YES}];
 _socket = [[SocketIOClient alloc] initWithManager:_manager nsp:@"/word"];

but for this case, I'm not getting even event "connect" (that it is unexpected event to be received anyway).

To be sure, I tried to connect to the same URL using Android socket.io library with a simple code like:

mSocket = IO.socket("https://subdomain.domain.com/word");
mSocket.on("connectedDevice", onConnected);
mSocket.connect();

and it worked properly... I've received a "connectedDevice" event as it is expected. Sounds weird but I'm disappointed that it worked on Android and not on iOS... That's why I honestly think that something is wrong on iOS side, but I cannot find what's wrong.

Anyone could point me to what could be happening here?

[nuclearace]

@jaragones sockets must be created with the SocketManager.socket(forNamespace:) method. So your second attempt would need to use that method. The first method is not supported in this library. Namespaces must be created explicitly.

[jaragones]

Awesome! I feel silly now! Thanks for your time, it worked!! :)

[MD04-TanTan]

Could you tell me how to import 'socket.io-client-swift' lib to objective c project?

[jaragones]

@MD04-TanTan, in your pod file you add next lines:

    use_frameworks!
    pod 'Socket.IO-Client-Swift'

On your controller, you need to add

@import SocketIO;

After running "pod install", it can be that XCode tells you an error that "SocketIO couldn't be found", try to build anyway, it will fix this "missing link" issue.

[MD04-TanTan]

Thanks for reply @jaragones i tried to build many times but it's not working

[nuclearace]

@MD04-TanTan You also need to make sure you're using the workspace CocoaPods creates for you.

[MD04-TanTan]

Thanks u guys !!!! I found it, the problem is missing " use_frameworks! " keyword in my pod file

[jaragones]

@MD04-TanTan also notice that you have a comment under your target 'CustomCell' that tells you to uncomment line if you are using Swift

#use_frameworks!