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  4. Instant messaging methods
  5. METHOD_MessageAck

METHOD_MessageAck

This method sends an acknowledgement (delivery receipt) to 
BEMS
 for the message that was received by the 
BlackBerry Connect
 app.
The following table describes the parameters that you can include in this method.
Parameter
Type
Required
Description
messageId
String
√
This parameter specifies the message ID which the 
BlackBerry Connect
 app has obtained from the MessageReceived event. 
status
String
√
This parameter specifies a status of 'delivered.'
 Delivered is currently the only supported status option.
dependencies
String
—
This parameter specifies the other methods that this method is dependent on. It specifies the comma delimited dependent request ids.
reconnect
String
—
This parameter specifies that the 
BlackBerry Connect
 app re-establish the existing session. For example, if 
BlackBerry Connect
 goes to the background, when it comes to the foreground the same session is continued. 

BEMS
 response and notification

The following table describes the parameters that 
BEMS
 returns and the notification that is sent to the 
BlackBerry Connect
 app when the the acknowledgement is sent.
Parameter
Type
Description
state
String
This parameter specifies the state of the request to 
BEMS
 (for example, Processing or Complete). 
method
String
This parameter specifies the method invocation name (for example, MessageAck).

Example code 

The following example sends a request to 
BEMS
 to send an acknowledge (for example, delivery receipt) for a received message.
{
 "method":"MessageAck",
 "params":
   {
     "messageId":"1",
     "status":"delivered"
   },
 "id":"c5",
 "jsonrpc":"2.0"
}
If the request is successful, 
BEMS
 sends the following response to the 
BlackBerry Connect
 app and processes the request.
{
  "id":"c5",
  "error":null,
  "result":
   {
     "data":
     {
       "method":"MessageAck",
       "state":"PROCESSING"
     }
   },
 "jsonrpc":"2.0",
 "background":false
}
If there are no errors, 
BEMS
 sends the following notification to the 
BlackBerry Connect
 app that acknowledges the receipt of the message.
{
  "id":"c5",
  "sequence": 1018561500000012,
  "result":
   {
    "data":
     {       
       "method":"MessageAck",       
       "state":"COMPLETE"
   },
 "jsonrpc":"2.0"
}