Return uniqueSaleNumber on receipt

[skito]

Hello,

Currently we can print a receipt without specifying uniqueSaleNumber. In this case the printer will automatically generate and add it to the receipt (at least with Datecs devices). However this auto-generated uniqueSaleNumber is not returned back which make it impossible to print a reversal receipt afterwards.

Is it possible to get the uniqueSaleNumber back with the response, no matter if it is already specified by the incoming POST request?

Thanks, Dimitar

[i-argentinski]

This could be made and would be a nice addition to the protocol.

However, as this is unsupported open-source effort, it is up to you to implement it. If you implement it with a quality code, please give us a pull request, so that we can share it to benefit everybody.

If you decide to implement it:

• Implement it for DATECS printers
• Consider the non-DATECS printers - do they support this?
• Include the change in the protocol help (this should be only 1 line description and 1 line in any of the example responses)
• Anything else, which you might consider good for the quality of the pull request.

Regards!