adds get_publication_subscriber_count (#21)

* adds get_publication_subscriber_count

* adds get_publication_subscriber_count

examples/get_subscriber_count.py

@@ -0,0 +1,17 @@
+import os
+
+from dotenv import load_dotenv
+
+from substack import Api
+
+load_dotenv()
+
+if __name__ == "__main__":
+    api = Api(
+        email=os.getenv("EMAIL"),
+        password=os.getenv("PASSWORD"),
+        publication_url=os.getenv("PUBLICATION_URL"),
+    )
+
+    subscriberCount: int = api.get_publication_subscriber_count()
+    print(f"Subscriber count: {subscriberCount}")

substack/api.py

@@ -103,6 +103,18 @@ def get_publication_users(self):
 
         return Api._handle_response(response=response)
 
+    def get_publication_subscriber_count(self):
+
+        """
+        Get subscriber count.
+
+        Returns:
+
+        """
+        response = self._session.get(f"{self.publication_url}/publication_launch_checklist")
+
+        return Api._handle_response(response=response)['subscriberCount']
+
     def get_posts(self) -> dict:
         """