我正在开发一个 Twilio 应用程序,用户在公共(public)终端上会看到一个数字列表。有些是 SIP,有些是传统的。最终用户可能会按下按钮调用列表中的一个人,进行对话,然后走开 - 然后另一个用户会走上前调用另一个人。
我遇到一个问题,Twilio.Device.destroy 没有消除所有正在使用的设备,并且示例中的第二个用户最终会调用第一个用户的目标。
首先是代码,然后是日志:
按钮 Hook :
$('.twilio-voice').click(function() {
var toNum = this.value;
console.log('To num in jq');
console.log(toNum);
makeVoiceCall(toNum);
});
makeVoiceCall 函数:
var makeVoiceCall = function(toNum) {
console.log('To Num Is:');
console.log(toNum);
if(localStorage.token == undefined) {
console.log("In If");
getVoiceToken(toNum);
} else {
console.log("In Else");
console.log(localStorage.token);
Twilio.Device.setup(localStorage.token, {debug: true});
Twilio.Device.ready(function(device){
console.log('IN READY TO NUM IS');
console.log(toNum);
Twilio.Device.connect({"To": toNum});
});
Twilio.Device.error(function(error) {
console.log(error.message);
if(error.message == 'JWT Token Expired') {
getVoiceToken(toNum);
};
});
}
};
有一个事件监听器在 Twilio.Device.connect 上启动一个模式,该模式创建一个模式按钮,按下该按钮时,还有一个断开事件监听器,两者都调用挂断函数:
function hangup() {
Twilio.Device.disconnectAll();
Twilio.Device.destroy();
};
我尝试添加 Twilio.Device.destroy();在 makeVoiceCall 的开头,Twilio.Device.ready() 内;在 else 语句的顶部,它们似乎没有效果。如果我单击传统号码,然后单击 sip 号码,日志将如下所示。传统的号码会被叫两次。如果先调用 SIP 号码,则随后尝试使用传统号码也会调用该号码。在此示例中,加载页面时 localStorage 中已存在一个 token 。
To num in jq
ts:1214 +15555555555
ts:1178 To Num Is:
ts:1179 +15555555555
ts:1190 In Else
ts:1191
[STACKOVERFLOW EDIT: console logged token removed]
twilio.min.js:71 Device.sounds is deprecated and will be removed in the next
breaking release. Please use the new functionality available on
Device.audio.
m.defaultWarnHandler @ twilio.min.js:71
m.deprecated @ twilio.min.js:71
(anonymous) @ twilio.min.js:72
l @ twilio.min.js:71
a @ twilio.min.js:39
setup @ twilio.min.js:59
makeVoiceCall @ ts:1192
(anonymous) @ ts:1215
dispatch @ jquery-2.1.3.min.js:3
r.handle @ jquery-2.1.3.min.js:3
twilio.min.js:70 [Device] Setting up PStream
twilio.min.js:70 [WSTransport] Opening socket
twilio.min.js:70 [WSTransport] attempting to connect
twilio.min.js:70 [WSTransport] Socket opened
twilio.min.js:70 [PStream] Setting token and publishing listen
twilio.min.js:70 [Device] Stream is ready
ts:1194 IN READY TO NUM IS
ts:1195 +15555555555
twilio.min.js:70 [Twilio.PeerConnection] signalingState is "have-local-offer"
twilio.min.js:70 [Twilio.PeerConnection] signalingState is "stable"
twilio.min.js:70 [Twilio.PeerConnection] iceConnectionState is "checking"
xb @ jquery-2.1.3.min.js:3
get @ jquery-2.1.3.min.js:3
css @ jquery-2.1.3.min.js:3
get @ jquery-2.1.3.min.js:3
cur @ jquery-2.1.3.min.js:3
init @ jquery-2.1.3.min.js:3
Kb @ jquery-2.1.3.min.js:3
createTween @ jquery-2.1.3.min.js:3
Rb.* @ jquery-2.1.3.min.js:3
Ub @ jquery-2.1.3.min.js:3
Vb @ jquery-2.1.3.min.js:3
Xb @ jquery-2.1.3.min.js:3
g @ jquery-2.1.3.min.js:3
dequeue @ jquery-2.1.3.min.js:3
(anonymous) @ jquery-2.1.3.min.js:3
each @ jquery-2.1.3.min.js:2
each @ jquery-2.1.3.min.js:2
queue @ jquery-2.1.3.min.js:3
animate @ jquery-2.1.3.min.js:3
n.fn.(anonymous function) @ jquery-2.1.3.min.js:3
addModal @ ts:974
(anonymous) @ ts:1024
a.emit @ twilio.min.js:162
(anonymous) @ twilio.min.js:48
c @ twilio.min.js:165
a.emit @ twilio.min.js:163
mediaStream.onopen @ twilio.min.js:21
a.version.pc.onsignalingstatechange @ twilio.min.js:119
twilio.min.js:70 [Twilio.PeerConnection] iceConnectionState is "completed"
twilio.min.js:70 [Connection] Disconnecting...
twilio.min.js:70 [PStream] Closing PStream
twilio.min.js:70 [WSTransport] Closing socket
twilio.min.js:70 [Twilio.PeerConnection] iceConnectionState is "closed"
twilio.min.js:70 [Twilio.PeerConnection] signalingState is "closed"
twilio.min.js:158 WebSocket connection to 'wss://chunderw-vpc-gll.twilio.com/signal' failed: Close received after close
l._connect @ twilio.min.js:158
l.open @ twilio.min.js:157
a @ twilio.min.js:78
a @ twilio.min.js:75
a._setupStream @ twilio.min.js:54
a.register @ twilio.min.js:50
a @ twilio.min.js:46
setup @ twilio.min.js:59
makeVoiceCall @ ts:1192
(anonymous) @ ts:1215
dispatch @ jquery-2.1.3.min.js:3
r.handle @ jquery-2.1.3.min.js:3
twilio.min.js:70 [WSTransport] Socket received error: undefined
twilio.min.js:70 [WSTransport] Socket closed
twilio.min.js:70 [Device] Stream is offline
ts:1213 To num in jq
ts:1214 sip:test@sipexample.info
ts:1178 To Num Is:
ts:1179 sip:test@sipexample.info
ts:1190 In Else
ts:1191 [STACKOVERFLOW EDIT: token console.logged]
twilio.min.js:70 [Device] Found existing Device; using new token but ignoring options
twilio.min.js:70 [Device] Setting up PStream
twilio.min.js:70 [WSTransport] Opening socket
twilio.min.js:70 [WSTransport] attempting to connect
twilio.min.js:70 [WSTransport] Socket opened
twilio.min.js:70 [PStream] Setting token and publishing listen
twilio.min.js:70 [Device] Stream is ready
[STACKOVERFLOW EDIT: HERE IS WHERE TWO DEVICES ARE CALLED BY ONE Twilio.Device.setup()]
ts:1194 IN READY TO NUM IS
ts:1195 +15555555555
ts:1194 IN READY TO NUM IS
ts:1195 sip:test@sipexample.info
twilio.min.js:51 Uncaught Error: A Connection is already active
at a.connect (twilio.min.js:51)
at Function.connect (twilio.min.js:60)
at a.<anonymous> (ts:1196)
at a.emit (twilio.min.js:163)
at a.<anonymous> (twilio.min.js:55)
at a.emit (twilio.min.js:163)
at l.transport.onmessage (twilio.min.js:78)
at WebSocket.c.onmessage (twilio.min.js:160)
a.connect @ twilio.min.js:51
connect @ twilio.min.js:60
(anonymous) @ ts:1196
a.emit @ twilio.min.js:163
(anonymous) @ twilio.min.js:55
a.emit @ twilio.min.js:163
transport.onmessage @ twilio.min.js:78
c.onmessage @ twilio.min.js:160
twilio.min.js:70 [Twilio.PeerConnection] signalingState is "have-local-offer"
twilio.min.js:70 [Twilio.PeerConnection] signalingState is "stable"
twilio.min.js:70 [Twilio.PeerConnection] iceConnectionState is "checking"
twilio.min.js:70 [Twilio.PeerConnection] iceConnectionState is "completed"
twilio.min.js:70 [Connection] Disconnecting...
twilio.min.js:70 [PStream] Closing PStream
twilio.min.js:70 [WSTransport] Closing socket
twilio.min.js:70 [Twilio.PeerConnection] iceConnectionState is "closed"
twilio.min.js:70 [Twilio.PeerConnection] signalingState is "closed"
twilio.min.js:158 WebSocket connection to 'wss://chunderw-vpc-gll.twilio.com/signal' failed: Close received after close
l._connect @ twilio.min.js:158
l.open @ twilio.min.js:157
a @ twilio.min.js:78
a @ twilio.min.js:75
a._setupStream @ twilio.min.js:54
a.register @ twilio.min.js:50
setup @ twilio.min.js:59
makeVoiceCall @ ts:1192
(anonymous) @ ts:1215
dispatch @ jquery-2.1.3.min.js:3
r.handle @ jquery-2.1.3.min.js:3
twilio.min.js:70 [WSTransport] Socket received error: undefined
twilio.min.js:70 [WSTransport] Socket closed
twilio.min.js:70 [Device] Stream is offline
正如您在日志的底部四分之一中看到的 - 由我添加的内容标记:[STACKOVERFLOW EDIT: HERE IS WHERE TWO DEVICES ARE CALLEDED BY ONE Twilio.Device.setup()]
, SIP 和传统号码都会在单个 Twilio.Device.setup 调用期间被调用,即使设备通过挂断功能被销毁(并且我已经尝试了其他点来放置 Twilio.Device.destroy)。因此,在第二次尝试时,只有原始调用的号码才能真正连接到。目前,我能想到的唯一解决方法是为列表中的每个人创建单独的函数(这是 DRY 的对立面,并为维护或扩展此代码增加了大量工作)或完成通话后重新加载页面(我的雇主不喜欢这样做)。
如果我可以在通话完成后简单地释放/销毁 Twilio 设备,那将对我有很大帮助。我尝试在我的 Twilio.Device.connect 调用下面放置一个 Twilio.Device.disconnect(function() { Twilio.Device.disconnectAll(); Twilio.Device.destroy();});
准备好了,结果相同。任何有关销毁这些多个设备(或重复使用第一个设备)的帮助都是非常宝贵的。
最佳答案
这里是 Twilio 开发者布道者。
您不必在每次调用后销毁 Twilio.Device
。这里实际发生的是,您正在注册多个处理程序,当设备
变得准备就绪
时,这些处理程序将被调用。
我建议稍微重新架构一下。加载页面后,设置 Twilio 设备。然后监听离线事件,以便您知道何时重新生成 token 并重新连接到服务。像这样的东西:
function makeVoiceCall(toNum) {
Twilio.Device.connect({"To": toNum});
}
function setupDevice(token) {
Twilio.Device.setup(token, { debug: true });
}
function getVoiceToken(callback) {
$.post('/token', function(data) {
localStorage.token = data.token;
callback(token);
})
}
function init() {
if(localStorage.token == undefined) {
getVoiceToken(function(token){
setupDevice(token)
});
} else {
setupDevice(localstorage.token)
}
// Ready will setup click handlers.
Twilio.Device.ready(function() {
$('.twilio-voice').click(function() {
var toNum = this.value;
makeVoiceCall(toNum);
});
});
// offline will remove click handlers, get a new token and setup the device again
Twilio.Device.offline(function() {
// unregister click handlers for now
$('.twilio-voice').off('click');
getVoiceToken(function(token) {
setupDevice(token);
})
})
}
window.addEventListener('load', init);
我在这里编写了一个新版本的 getVoiceToken
,以便它在回调中返回 token ,我认为这使事情更容易阅读。
请告诉我这是否有帮助。
关于javascript - Twilio 调用被不尊重 Twilio.Device.destroy() 的多个设备实例阻止,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/45869513/