API interface to integrate Gloriafood into the POS system Speedy

We are a small vegan / vegetarian restaurant that quickly set up a nice online shop in times of the Corona crisis in order to supply our customers with the best food at home and not have to close. See for yourself: [login to view URL] Cash register Speedy is our cash register-compliant cash register system. Gloriafood is a free online delivery service. In order to have a good workflow in our restaurant, we have to integrate the online ordering platform Gloriafood into our existing POS system Speedy, since Gloriafood does not replace POS software and we do not want to manually enter all online orders in the evening into the POS system via Gloriafood. Both platforms think that this is fundamentally a good idea and are also willing to work for a permanent solution. As a solution, it would be entirely sufficient if Gloriafood's sales automatically appear in the till software to make a uniform checkout.