The actual changed code

src/classes.py

@@ -1,10 +1,12 @@
 from utils import raiseDiscord
+import config
+import json
 
 class Travel():
     def __init__(self, data):
         self.orderId = data["orderId"]
         self.serviceItemId = data["serviceItemId"]
-        self.dvNumber = data["dvNumber"]
+        self.dvNumber = data["dvNumber"] # or marketingCarrierRef, the ref of the visible ticket's ref
         self.origin = data["origin"]
         self.destination = data["destination"]
         self.departureDateTime = data["departureDateTime"]
@@ -16,9 +18,11 @@ class Travel():
         self.seatNumber = data["seatNumber"]
 
         self.reservationDate = data["reservationDate"]
-        self.travelConfirmed = data["travelConfirmed"] # CONFIRMED, TOO_EARLY_TO_CONFIRM
+        self.travelConfirmed = data["travelConfirmed"] # CONFIRMED, TOO_EARLY_TO_CONFIRM, TO_BE_CONFIRMED
         self.travelStatus = data["travelStatus"]
 
+        self.tcn = None
+
     def confirm(self, session, headers):
         """
         https://www.maxjeune-tgvinoui.sncf/api/public/reservation/travel-confirm
@@ -42,4 +46,30 @@ class Travel():
 
         return r
 
+    def get(self, s, headers):
+        r = s.post(
+            "https://www.maxjeune-tgvinoui.sncf/api/public/reservation/get-travel",
+            headers=headers,
+            json = {
+                "customerName": config.customer_name,
+                "departureDateTime": self.departureDateTime,
+                "marketingCarrierRef": self.dvNumber,
+                "trainNumber": self.trainNumber
+        })
+        data = json.loads(r.content.decode("utf-8"))
+        self.tcn = data["tcn"]
+        return data
+
+    def tprint(self, s, headers):
+        if self.tcn is None:
+            self.get(s, headers)
+
+        return s.post(
+            "https://www.maxjeune-tgvinoui.sncf/api/public/reservation/print-travel",
+            headers=headers,
+            json = {
+                "orderId": self.orderId,
+                "serviceItemId": self.serviceItemId,
+                "tcn": [self.tcn]
+        })