how to Socket io with swift language - swift

Question

Here is my socket io swift language code
and main.js file code also here
I have not properly idea why is not with socket io server.
let manager = SocketManager(socketURL: URL(string: "http://localhost:3000")!, config: [.log(true), .compress])
self.socket = manager.socket(forNamespace: "/")
establishSocketConnection()
func establishSocketConnection() {
self.socket.connect()
self.socket.on("connection") { ( dataArray, ack) -> Void in
print("connected to external server")
}
}
func cloesSocketConnection() {
self.socket.disconnect()
}
log:
2019-03-27 23:38:36.228040+0530 scoket[1693:38288] LOG SocketIOClient{/}: Handling event: statusChange with data: [connecting, 2]
2019-03-27 23:38:36.228241+0530 scoket[1693:38288] LOG SocketIOClient{/}: Joining namespace /
2019-03-27 23:38:36.228353+0530 scoket[1693:38288] LOG SocketManager: Tried connecting socket when engine isn't open. Connecting
2019-03-27 23:38:36.228437+0530 scoket[1693:38288] LOG SocketManager: Adding engine
2019-03-27 23:38:36.229083+0530 scoket[1693:38288] LOG SocketIOClient{/}: Adding handler for event: connection
2019-03-27 23:38:36.229115+0530 scoket[1693:38343] LOG SocketEngine: Starting engine. Server: http://localhost:3000
2019-03-27 23:38:36.229203+0530 scoket[1693:38343] LOG SocketEngine: Handshaking
2019-03-27 23:38:36.229239+0530 scoket[1693:38288] LOG SocketManager: Manager is being released
2019-03-27 23:38:36.232066+0530 scoket[1693:38343] LOG SocketEnginePolling: Doing polling GET http://localhost:3000/socket.io/?transport=polling&b64=1
2019-03-27 23:38:36.331457+0530 scoket[1693:38346] LOG SocketEnginePolling: Got polling response
2019-03-27 23:38:36.331618+0530 scoket[1693:38346] LOG SocketEnginePolling: Got poll message: 96:0{"sid":"yaMqmjKGkhok6TuqAAAC","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":5000}2:40
2019-03-27 23:38:36.331884+0530 scoket[1693:38346] LOG SocketEngine: Got message: 0{"sid":"yaMqmjKGkhok6TuqAAAC","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":5000}
2019-03-27 23:38:36.341490+0530 scoket[1693:38346] LOG SocketEngine: Got message: 40
2019-03-27 23:38:36.341726+0530 scoket[1693:38346] LOG SocketEngine: Writing poll: has data: false
2019-03-27 23:38:36.342051+0530 scoket[1693:38346] LOG SocketEnginePolling: Sending poll: as type: 2
2019-03-27 23:38:36.342505+0530 scoket[1693:38346] LOG SocketEnginePolling: Created POST string: 1:2
2019-03-27 23:38:36.342910+0530 scoket[1693:38346] LOG SocketEnginePolling: POSTing
2019-03-27 23:38:36.343202+0530 scoket[1693:38346] LOG SocketEngine: Engine is being released

Answer 1

your socket property it isn't true
your connection method must be like this:
func establishSocketConnection() {
let socket = manager.defaultSocket
self.socket.on("connection") { ( dataArray, ack) -> Void in
print("connected to external server")
}
}
and every time you want to create handler in socket (like socket.on or socket.emit)
you must create socket variable again.
hope to this help you.

Answer 2

Here is the latest swift 4.2 code
Connect with socket io server and get data in xcode
func ConnectToSocket() {
manager = SocketManager(socketURL: URL(string: "http://localhost:3000")!, config: [.log(true), .compress])
socketIOClient = manager.defaultSocket
socketIOClient.on(clientEvent: .connect) {data, ack in
print(data)
print("socket connected")
self.socketIOClient.emit("GetData", "dad")
}
socketIOClient.on("newChatMessage") { (dataArray, socketAck) -> Void in
print(dataArray)
}
socketIOClient.on(clientEvent: .error) { (data, eck) in
print(data)
print("socket error")
}
socketIOClient.on(clientEvent: .disconnect) { (data, eck) in
print(data)
print("socket disconnect")
}
socketIOClient.on(clientEvent: SocketClientEvent.reconnect) { (data, eck) in
print(data)
print("socket reconnect")
}
socketIOClient.connect()
}

Answer 3

Use this SocketIOManger for communicate with socket and make changes according to your need.
class SocketIOManager: NSObject {
static let sharedInstance = SocketIOManager()
var manager : SocketManager?
var socket : SocketIOClient?
override init() {
super.init()
}
/**
Create socket connection.
- parameter completionHandler : Called when complition will occure.
- parameter connected : True when socket connected.
- returns: nil
*/
func createSocketConnection (completionHandler: #escaping (_ connected: Bool) -> Void) {
let token = UserDefaults.standard.string(forKey: ConstantsBroadcast.Access_Token)!
manager = SocketManager(socketURL: URL(string: ConstantsBroadcast.socketBaseUrl)!
,config: [.log(true), .connectParams(["token": token]) ])
socket = manager?.defaultSocket
socket?.on(clientEvent: .connect) { data, ack in
print("socket connected.")
completionHandler(true)
}
socket?.connect()
}
/**
Disconnect socket.
*/
func closeConnection() {
socket?.disconnect()
}
/**
Add new user to socket.
- parameter username: current user name.
- parameter userid: current user id.
- parameter image: current user profile image url.
- returns: nil
*/
func addUserToServer(username: String, userid: String, image: String) {
let dict = ["username" : username, "userId": userid, "profileImage":image] as [String : Any]
self.socket?.emit("adduser", dict) //adduser
}
/**
Add handler for total connected user.
- parameter completionHandler : Called when complition will occure.
- parameter userCount : Total number of connected users.
- returns: nil
*/
func userConnectionHandlers(completionHandler: #escaping (_ userCount: String) -> Void) {
socket?.on("updateconnecteduser") { data,ack in //updateconnecteduser
debugPrint("connected user : ",data)
if let snippet = data[0] as? NSDictionary {
completionHandler("\(String(describing: snippet.value(forKey: "viewers")!))")
}
}
}
/**
Send new message.
- parameter message: user text message.
- returns: nil
*/
func sendMessage(message :String){
if socket?.status == .connected {
self.socket?.emit("sendchat", ["message": message]) //sendchat
}
else{
print("socket not connected")
}
}
/**
Add handler for get new messages.
- parameter completionHandler : Called when complition will occure.
- parameter messageInfo : New message data.
- returns: nil
*/
func newMessageHandlers(completionHandler: #escaping (_ messageInfo: ChatItemModel) -> Void) {
socket?.on("updatechat") { data,ack in //updatechat
print(data)
var msgData = ChatItemModel()
if let chatData = data[0] as? NSDictionary {
if let mId = chatData.value(forKey: "chatCommentId") as? String{
msgData.ChatCommentId = mId
}
if let userId = chatData.value(forKey: "userId") as? String {
msgData.UserID = userId
}
if let username = chatData.value(forKey: "username") as? String{
msgData.UserName = username
}
if let image = chatData.value(forKey: "profileImage") as? String{
msgData.ProfileImage = image
}
if let message = chatData.value(forKey: "message") as? String{
msgData.Message = message
}
if let createdAt = chatData.value(forKey: "createdAt") as? String{
msgData.CreatedAT = createdAt
}
completionHandler(msgData)
}
}
}
/**
Block user.
- parameter userId: user id.
- returns: nil
*/
func blockUser(userId : String){
if socket?.status == .connected {
self.socket?.emit("blockuser", ["userId" : userId]) //blockuser
print("blockuser emmited : ", userId)
}
else{
print("socket not connected")
}
}
/**
Add handler for block user.
- parameter completionHandler : Called when complition will occure.
- parameter userId : Blocked user id.
- returns: nil
*/
func blockUserHandler(completionHandler: #escaping (_ status : Int, _ userId: String) -> Void) {
socket?.on("updateblockeduser") { data,ack in //updateblockeduser
print("blcked userId : ",data)
if let blockedItem = data[0] as? NSDictionary {
if let status = blockedItem.value(forKey: "status") as? Int{
if let userId = blockedItem.value(forKey: "userId") as? String{
completionHandler(status, userId)
}
}
}
}
}
}