Closing connection from pay and display app

Question

question

ahmed2403 asked Dec 1, '19 David Marginian Deactivated edited Dec 1, '19

Closing connection from pay and display app

What is the best way to make our POS software disconnect from the Clover Mini USB pay and display app? Should we be using the Dipose() method? As we have used this when our application is closed, but the USB pay and display app still seems to be showing fine on the Clover Mini screen.

This sometimes causes issues as if there is a sale request from before, and it hasn't been closed properly (e.g. customer didn't proceed with the sale) then when the pos software loads back up it is still using the connection from before and sale from before as well which confuses the listener events.

Clover Mini

10 |2000

Attachments: Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

Welcome to the
Clover Developer Community

Answer 1 · 2019-12-01T01:24:05Z

David Marginian Deactivated answered Dec 1, '19

You should be connecting to and maintaining a connection to the device and only using dispose when your POS is shutdown.

It sounds like you need to read through and implement our best practices - https://docs.clover.com/clover-platform/docs/remote-pay-sdk-best-practices.

10 |2000

Attachments: Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

Answer 2 · 2019-12-01T01:34:01Z

ahmed2403 answered Dec 1, '19 David Marginian Deactivated edited Dec 1, '19

Yes we are only disposing when our POS application is being closed/shutdown, so I guess all is fine there.

The only confusing part is our POS is making sale requests fine, but when it comes to refund request then OnRefundPaymentResponse listner gives "Device Connection Error" message even though connection hasn't been disposed? Then after the refund request attempt fails, if we immediately do a sale request it works?

Any ideas what could be causing this?

13

10 |2000

Attachments: Up to 2 attachments (including images) can be used with a maximum of 512.0 KiB each and 1.0 MiB total.

David Marginian ♦♦ commented · Dec 01, 2019 at 01:37 AM

Implement onDeviceDisconnected in ICloverConnector listener and see if the connection is getting dropped.

0 ·

ahmed2403 David Marginian ♦♦ commented · Dec 01, 2019 at 01:46 AM

Done that, connection isn't being dropped, however I do see some things missing with the ICloverConnector as per image attached if this helps?

Although, even with these errors a sale request still executes fine...

0 ·

clover2.png (92.8 KiB)

David Marginian ♦♦ ahmed2403 commented · Dec 01, 2019 at 01:54 AM

Looking through the SDK that error should only happen if the device is null (you didn't initialize or disposed of the connector) or the device isn't ready - if you aren't seeing OnDeviceDisconnected get called I am not sure how that is happening. You can put some breakpoints in CloverConnector.cs and find out pretty quickly.

0 ·

Show more comments

question