Set the external_id of the printful order to the voucher id

2 files changed, 7 insertions, 3 deletions

diff --git a/thallium-backend/src/dto/orders.py b/thallium-backend/src/dto/orders.py
index f4864ab..848e7fc 100644
--- a/thallium-backend/src/dto/orders.py
+++ b/thallium-backend/src/dto/orders.py
@@ -2,6 +2,8 @@ from decimal import Decimal
 
 from pydantic import BaseModel
 
+from src.dto import Voucher
+
 
 class OrderRecipient(BaseModel):
     """Information about the recipient of the order."""
@@ -35,9 +37,10 @@ class OrderCreate(BaseModel):
     recipient: OrderRecipient
     items: list[OrderItem]
 
-    def as_printful_payload(self) -> dict:
+    def as_printful_payload(self, voucher: Voucher) -> dict:
         """Return this order in the format used by Printful's API."""
         return {
+            "external_id": voucher.id,
             "recipient": self.recipient.model_dump(),
             "items": [item.model_dump() for item in self.items],
         }
diff --git a/thallium-backend/src/routes/orders.py b/thallium-backend/src/routes/orders.py
index c5126a8..20682c0 100644
--- a/thallium-backend/src/routes/orders.py
+++ b/thallium-backend/src/routes/orders.py
@@ -20,11 +20,12 @@ async def create_order(request: Request, db: DBSession, client: PrintfulClient,
 
     If the voucher does not have enough funds, the order is cancelled.
     """
-    resp = await client.post("/orders", json=order.as_printful_payload(), params={"confirm": False})
+    voucher: Voucher = request.state.voucher
+
+    resp = await client.post("/orders", json=order.as_printful_payload(voucher), params={"confirm": False})
     resp.raise_for_status()
     submitted_order = Order.model_validate(resp.json()["result"])
 
-    voucher: Voucher = request.state.voucher
     stmt = select(DBVoucher).where(DBVoucher.id == voucher.id).with_for_update()
     db_voucher = await db.scalar(stmt)
     if submitted_order.costs.total > db_voucher.balance: