Add booking example for adult and infant

Associating an infant passenger with the relevant adult passenger can be
complicated, so providing a worked example of how to do this could be
useful.

Author: Sasha Gerrand

examples/book-with-adult-and-infant.py

@@ -0,0 +1,111 @@
+from datetime import date
+
+from duffel_api import Duffel
+
+
+if __name__ == "__main__":
+    print("Duffel Flights API - book with adult and infant example")
+    client = Duffel()
+    departure_date = date.today().replace(date.today().year + 1)
+    slices = [
+        {
+            "origin": "LHR",
+            "destination": "STN",
+            "departure_date": departure_date.strftime("%Y-%m-%d"),
+        },
+    ]
+    offer_request = (
+        client.offer_requests.create()
+        .passengers(
+            [{"type": "adult"}, {"age": 1}, {"age": (date.today().year - 2003)}]
+        )
+        .slices(slices)
+        .execute()
+    )
+
+    print("Created offer request: %s" % (offer_request.id))
+
+    offers = client.offers.list(offer_request.id)
+    offers_list = list(enumerate(offers))
+
+    print("Got %d offers" % len(offers_list))
+
+    selected_offer = offers_list[0][1]
+
+    print("Selected offer %s to book" % (selected_offer.id))
+
+    priced_offer = client.offers.get(selected_offer.id)
+
+    print(
+        "The final price for offer %s is %s (%s)"
+        % (priced_offer.id, priced_offer.total_amount, priced_offer.total_currency)
+    )
+
+    payments = [
+        {
+            "currency": selected_offer.total_currency,
+            "amount": priced_offer.total_amount,
+            "type": "balance",
+        }
+    ]
+    passengers = [
+        {
+            "born_on": "1976-01-21",
+            "email": "[email protected]",
+            "family_name": "Corde",
+            "gender": "f",
+            "given_name": "Conelia",
+            "id": offer_request.passengers[0].id,
+            "infant_passenger_id": offer_request.passengers[1].id,
+            "phone_number": "+442080160508",
+            "title": "ms",
+        },
+        {
+            "born_on": date.today().replace(date.today().year - 1).strftime("%Y-%m-%d"),
+            "email": "[email protected]",
+            "family_name": "Corde",
+            "gender": "f",
+            "given_name": "Baby",
+            "id": offer_request.passengers[1].id,
+            "phone_number": "+442080160508",
+            "title": "miss",
+        },
+        {
+            "born_on": "2003-10-24",
+            "email": "[email protected]",
+            "family_name": "Corde",
+            "gender": "m",
+            "given_name": "Constantine",
+            "id": offer_request.passengers[2].id,
+            "phone_number": "+442080160508",
+            "title": "mr",
+        },
+    ]
+
+    order = (
+        client.orders.create()
+        .payments(payments)
+        .passengers(passengers)
+        .selected_offers([selected_offer.id])
+        .execute()
+    )
+
+    print(
+        "Created order %s with booking reference %s"
+        % (order.id, order.booking_reference)
+    )
+
+    order_cancellation = client.order_cancellations.create(order.id)
+
+    print(
+        "Requested refund quote for order %s – %s (%s) is available"
+        % (
+            order.id,
+            order_cancellation.refund_amount,
+            order_cancellation.refund_currency,
+        )
+    )
+
+    client.order_cancellations.confirm(order_cancellation.id)
+
+    print("Confirmed refund quote for order %s" % (order.id))