Mobile Printing of Sales Receipts from Mobile Delivery App Orders

We use Zippykind delivery app for managing local cash on delivery orders for orders generated on classified and facebook marketplace, we want to be able to print receipts using a bluetooth thermal printer from an Android device once the sale is complete. An pdf "proof of delivery" receipt generated by Zippykind for successful deliveries is attached. There is an API/webhooks service for Zippykind local delivery app as well as Zapier integrations possible and I found another service called printnode with API/webhooks which I think could be used to print data from a completed Zippykind delivery ticket. We would like our drivers to be able to print receipts for successful delivery tickets easily and on demand using an android device and thermal bluetooth printer. Guidance or alternative solutions are welcomed and appreciated. [login to view URL] [login to view URL]