How can I know if the connection is always open ?

[cyberal82]

Hi,

For beginning thank you for this node module :).

I have an electron program that open a bluetooth connection and listening the event "data".

How can I know if the connection is always open ?

Before write data I check if the connection is open with connection.isOpen() but this method return true if the connection has been open and lost.

I have try to listen the events "closed", "close", "failure" without any success.

If the connection has been open and lost, when I write data I have an uncatched exception:
Error : Error reading from connection.

The calls to the write method is in try/catch block

Node version : v8.12.0
node-bluetooth: v1.2.5

Thank you for your help.

[ThomasLaforge]

@cyberal82 Have you any news on it ?

[nipoonp]

This seemed to work for me:

let bluetoothPrinter;

connection.on("error", (err: any) => {
  console.log("Error: " + err);

  connection.close(() => {
    console.log("Connection closed manually");
  });

  bluetoothPrinter = null;
});

I listen to the connection.on "error" and if that is triggered I manually close the connection and set me global variable for bluetoothPrinter to null.