StompClientLib

## Introduction

StompClientLib is a stomp client in Swift. It uses Facebook's SocketRocket as a websocket dependency. SocketRocket is written in Objective-C but StompClientLib's STOMP part is written in Swift and its usage is Swift. You can use this library in your Swift 5+, 4+ and 3+ projects.

Supported Stomp Versions

Stomp version

• 1.1
• 1.2
• Might not be worked with 1.0 (Never tested)

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

Requirements

• iOS 8.0+
• XCode 8.1, 8.2, 8.3
• XCode 9.0+
• XCode 10.0 +
• XCode 12.1 +
• Swift 3.0, 3.1, 3.2
• Swift 4.0, Swift 4.1, Swift 4.2, Swift 5.0

Installation

StompClientLib is available through CocoaPods. To install it, simply add the following line to your Podfile:

Cocoapods

pod "StompClientLib"

Carthage

github "WrathChaos/StompClientLib"

Usage

import StompClientLib

Once imported, you can open a connection to your WebSocket server.

var socketClient = StompClientLib()
let url = NSURL(string: "your-socket-url-is-here")!
socketClient.openSocketWithURLRequest(request: NSURLRequest(url: url as URL) , delegate: self)

After you are connected, there are some delegate methods that you need to implement.

StompClientLibDelegate

stompClientDidConnect

func stompClientDidConnect(client: StompClientLib!) {
print("Socket is connected")
// Stomp subscribe will be here!
socketClient.subscribe(destination: topic)
// Note : topic needs to be a String object
}

stompClientDidDisconnect

func stompClientDidDisconnect(client: StompClientLib!) {
print("Socket is Disconnected")
}

didReceiveMessageWithJSONBody ( Message Received via STOMP )

Your json message will be converted to JSON Body as AnyObject and you will receive your message in this function

func stompClient(client: StompClientLib!, didReceiveMessageWithJSONBody jsonBody: AnyObject?, akaStringBody stringBody: String?, withHeader header: [String : String]?, withDestination destination: String) {
print("Destination : \(destination)")
print("JSON Body : \(String(describing: jsonBody))")
print("String Body : \(stringBody ?? "nil")")
}

didReceiveMessageWithJSONBody ( Message Received via STOMP as String )

Your json message will be converted to JSON Body as AnyObject and you will receive your message in this function

func stompClientJSONBody(client: StompClientLib!, didReceiveMessageWithJSONBody jsonBody: String?, withHeader header: [String : String]?, withDestination destination: String) {
  print("DESTINATION : \(destination)")
  print("String JSON BODY : \(String(describing: jsonBody))")
}

serverDidSendReceipt

If you will use STOMP for in-app purchase, you might need to use this function to get receipt

func serverDidSendReceipt(client: StompClientLib!, withReceiptId receiptId: String) {
  print("Receipt : \(receiptId)")
}

serverDidSendError

Your error message will be received in this function

func serverDidSendError(client: StompClientLib!, withErrorMessage description: String, detailedErrorMessage message: String?) {
  print("Error Send : \(String(describing: message))")
}

serverDidSendPing

If you need to control your server's ping, here is your part

func serverDidSendPing() {
  print("Server ping")
}

How to subscribe and unsubscribe

There are functions for subscribing and unsubscribing. Note : You should handle your subscribe and unsubscibe methods ! Suggestion : Subscribe to your topic in "stompClientDidConnect" function and unsubcribe to your topic in stompClientWillDisconnect method.

Subscribe

socketClient.subscribe(destination: topic)
// Note : topic needs to be a String object

Unsubscribe

socketClient.unsubscribe(destination: topic)

Important : You have to send your destination for both subscribe or unsubscribe!

Unsubsribe with header

let destination = "/topic/your_topic"
let ack = destination
let id = destination
let header = ["destination": destination, "ack": ack, "id": id]

// subscribe
socketClient?.subscribeWithHeader(destination: destination, withHeader: header)

// unsubscribe
socketClient?.unsubscribe(destination: subsId)

Auto Reconnect with a given time

You can use this feature if you need to auto reconnect with a spesific time or it will just try to reconnect every second.

// Reconnect after 4 sec
socketClient.reconnect(request: NSURLRequest(url: url as URL) , delegate: self as StompClientLibDelegate, time: 4.0)

Auto Disconnect with a given time

// Auto Disconnect after 3 sec
socketClient.autoDisconnect(time: 3)

Login Passcode Implementation

This is just an example. You need to convert to your implementation. #42

let connectFrame = "CONNECT\n login:admin\n passcode:password\n\n\n\0"
socket.write(string: connectFrame)

Future Enhancements

• Complete a working Example
• Add Carthage installation option
• Add Swift Package Manager installation option
• XCode 9 compatibility
• Swift 4 compatibility and tests
• Apple's New Socket for iOS 13 Implementation from stratch

Changelog

Full Changelog

Implemented enhancements:

• SUBSCRIBE and UNSUBSCRIBE Delegate is missing #16

Closed issues:

• Error Domain=SRWebSocketErrorDomain Code=2132 "received bad response code from server 403" #86
• the delegate should be weak #83

1.3.8 (2020-03-08)

Full Changelog

Implemented enhancements:

• Socket stopped working once I moved from ws//: to wss//: #67
• Self sign certificate, 400 error #66
• How to increase output buffer #37

Fixed bugs:

• unable to install #78
• Number of received messages is limited #76

Closed issues:

• Can't find header in initial call #81
• Can't connect to websocket : received bad response code from server 422 #80
• I just closed the issue because of the stale & reproducible problem #79
• unable to install #77
• stompClientDidConnect not called with Spring boot #73
• Issue with Cookies in header #71
• Can't see any Websocket traffic in Charles Proxy #70
• End of stream error #69
• Cannot connect with Stomp Websocket when custom header #64
• Can't connect Socket with Spring Boot 2.x.x #63
• Multiple clients #48
• IPV6 #38

Merged pull requests:

• fix delegate #84 (soledue)
• Fix typo #74 (wanbok)

1.3.7 (2019-08-26)

Full Changelog

Closed issues:

• The problem when receiving the messages from the Spring boot. #68

1.3.6 (2019-08-06)

Full Changelog

Implemented enhancements:

• Refactor code and fix support spring 2.1.x #65 (baonguyena1)

Fixed bugs:

• v1.3.4 replaced my custom header in open socket? #58

Closed issues:

• Json error: The data couldn’t be read because it isn’t in the correct format. #60

Merged pull requests:

• Fixed ACK id header and added new ACK type #62 (rodmytro)

1.3.5 (2019-07-25)

Full Changelog

Fixed bugs:

• StompClientDidConnect not called on a fresh project #51

Closed issues:

• SendJSONForDict error #57
• Can't connect to websocket with authorization header #39

Merged pull requests:

• #58 fix open socket with custom header issue #59 (marain87)

1.3.4 (2019-07-19)

Full Changelog

1.3.3 (2019-07-18)

Full Changelog

Closed issues:

• Missing merge #55
• Data garbled problem,help #41

Merged pull requests:

• String body parameter and ':'-in-header-value fix #56 (Erhannis)

1.3.2 (2019-07-10)

Full Changelog

Implemented enhancements:

• stompClientWillDisconnect missing #44

1.3.1 (2019-06-14)

Full Changelog

Closed issues:

• Can I subscribe to multiple topics with one stomp client? #47
• After subscribing to a topic, how to handle messages from server side? #46
• socket?.readyState is .OPEN and it never goes to my own "stompClientDidDisconnect" method #45
• Didconnect function cannot be callback after successful connection #43
• Login, passcode #42
• App goes in background lock the kepad the socket disconnected #40
• stompClientDidConnect not called with Spring boot #35
• Delegate StompClientDidConnect not called after connect->disconnect->connect #15

1.3.0 (2019-04-30)

Full Changelog

Implemented enhancements:

• invalidate reconnect #36

Closed issues:

• Should add Carthage #33
• Invalid Sec-WebSocket-Accept response #32
• Socket is disconnected with 1007 code as soon as it connected #31
• enable Assert (self.readyState != SR_CONNECTING) #24

1.2.7 (2018-10-23)

Full Changelog

1.2.6 (2018-10-23)

Full Changelog

Fixed bugs:

• Error when connected to socket #23

Closed issues:

• Auto disconnects #11

1.2.5 (2018-10-22)

Full Changelog

Closed issues:

• Value for "message-id" is always "1" #22
• Multiple subscription to topics #20
• I think there is a memory leak for the delegate #19
• Getting error when framwork is installed in Objective c project #9

1.2.4 (2018-10-17)

Full Changelog

Closed issues:

• didCloseWithCode 1000, reason: nil #21

1.2.3 (2018-10-17)

Full Changelog

Implemented enhancements:

• How to receive heartbeat? #18

Closed issues:

• Socket is not getting connected #30
• didCloseWithCode 1002 #29
• No response #27
• didCloseWithCode 1001, reason: "Stream end encountered" #26
• Stream end encountered #17
• unsubscribe socketclient #14
• It not able to connect web socket. #13
• One of the delegate method is not being called. #12
• StompClient Disconnection. #10
• Unable to find a specification for 'StompClientLib' #8

1.2.2 (2017-11-03)

Full Changelog

1.2.1 (2017-10-31)

Full Changelog

1.2.0 (2017-10-29)

Full Changelog

Closed issues:

• Let client decide what to do with stomp frame body #4
• Send message support #3
• Error when calling delegate #1

1.1.7 (2017-10-02)

Full Changelog

1.1.6 (2017-08-08)

Full Changelog

0.1.5 (2017-07-10)

Full Changelog

0.1.4 (2017-07-10)

Full Changelog

0.1.3 (2017-07-10)

Full Changelog

0.1.2 (2017-07-08)

Full Changelog

0.1.1 (2017-07-08)

Full Changelog

0.1.0 (2017-07-08)

Full Changelog

* This Changelog was automatically generated by github_changelog_generator

Author

FreakyCoder, [email protected]

License

StompClientLib is available under the MIT license. See the LICENSE file for more info.