Raise error upon invalid api key (#3)

aiotankerkoenig/aiotankerkoenig.py

@@ -10,7 +10,11 @@
 import orjson
 from yarl import URL
 
-from .exceptions import TankerkoenigConnectionError, TankerkoenigError
+from .exceptions import (
+    TankerkoenigConnectionError,
+    TankerkoenigError,
+    TankerkoenigInvalidKeyError,
+)
 from .models import GasType, PriceInfo, Sort, Station
 
 VERSION = metadata.version(__package__)
@@ -66,6 +70,14 @@ async def _request(self, path: str, params: dict[str, Any]) -> Any:
 
         obj = orjson.loads(await response.text())  # pylint: disable=maybe-no-member
         if not obj["ok"]:
+            message = obj["message"].lower()
+            if any(x in message.lower() for x in ("api-key", "apikey")):
+                msg = "tankerkoenig.de API responded with an invalid key error"
+                raise TankerkoenigInvalidKeyError(
+                    msg,
+                    {"response": obj},
+                )
+
             msg = "tankerkoenig.de API responded with an error"
             raise TankerkoenigError(
                 msg,

aiotankerkoenig/exceptions.py

@@ -8,3 +8,7 @@ class TankerkoenigError(Exception):
 
 class TankerkoenigConnectionError(TankerkoenigError):
     """Raised when a connection error occurs."""
+
+
+class TankerkoenigInvalidKeyError(TankerkoenigError):
+    """Raised when the API key is invalid."""