# Message push

The developer server can push messages through the WeChat application background interface to WMPF Client End push message, specifically divided into four steps:

1. First need to get PushToken, there are two ways to get it (JSAPI and Task）
2. WMPF Client End call SetPushMsgCallback , this method is used to receive the server push News of the
3. The server throughApplication Push Messaging Background Interface push Message, the parameter is the msg And Steps 1 Acquired pushToken
4. SetPushMsgCallback The listener function bound to the method receives the push News of the

# 1. Obtain pushToken

adopt JSAPI

初始值 wmpf.getWmpfPushToken Obtain pushToken

wmpf.getWmpfPushToken({
  success: res => {
    console.log(res.token)
  },
  fail: res => {
    console.log(res)
  }
})

adopt Task

in WMPF client In, can be accessed through Task Obtain pushToken

fun GetPushToken(appId: String, callback: (Boolean, String) -> Unit) {
  初始值 request = WMPFPushTokenRequest()
  request.baseRequest = WMPFBaseRequestHelper.checked()
  request.appId = appId
  val result = WMPFIPCInvoker.invokeAsync<
  IPCInvokerTask_getPushToken,
  WMPFPushTokenRequest,
  WMPFPushTokenResponse
  >(request, IPCInvokerTask_getPushToken::class.java) {
    response -> callback(true, response.pushToken)
  }
  if (!result) {
    callback(false, "invoke 初始值 fail")
  }
}

# 2. Push Message Background Interface

By calling the pushAppMsg Interface, to the WMPF Client end push Message.

# 3. Client Terminal receives message

adopt SetPushMsgCallback Register to listen for message callback events

val request = WMPFPushMsgRequest()
request.baseRequest = WMPFBaseRequestHelper.checked()
WMPFIPCInvoker.invokeAsync<IPCInovkerTask_SetPushMsgCallback,
WMPFPushMsgRequest, WMPFPushMsgResponse>(request, IPCInovkerTask_SetPushMsgCallback::class.java) {
  resp -> ui.printlnToView("receive: " + resp.msgBody)
}