[PHY-32] Receive new Etsy Orders

[bennobuilder]

DoD

• [X] Though about best way to receive new Etsy Orders/Receipts
• [X] The decided way got implemented into the core app
• [X] Orders are not missed and also not processed twice

_{From SyncLinear.com | PHY-32}

[bennobuilder]

Options

Option 1: Listen on "new Order" Email

The core backend listens on the physicaldotart@gmail.com inbox and if a new Email matching a specific pattern like Du hast einen Verkauf auf Etsy erzielt [11,90 €, Bestellung #xxx] it interprets that as new order and fetches the actual order/receipt from the Etsy API.

Option 2: Poll Etsy API getReceipts() endpoint

The core backend has a cront job running that polls every x minutes the getReceipts() Etsy API endpoint to see whether a new order exists. To not process orders twice the min_created query parameter is used. So only receive orders to a specific timeframe, in this case after the last poll time. This last poll time will be saved in a Database so it won't get lost during a restart.

Decision

• Option 2
• Polling the Etsy API is a more reliable method for retrieving new orders compared to listening to emails. By storing the last successful poll timestamp and using it as the min_created parameter, it can be ensured that only new orders are retrieved.