fix(telegram): ensure proper bot API base (#557)

I _think_ that in the refactor in
05a8f0e
the behavior of the base API for Telegram became to use a `/` in between
`bot` and the supplied token.

Per https://core.telegram.org/bots/api#making-requests, the API base
should be:

`https://api.telegram.org/bot<token>/METHOD_NAME`

Note the lack of `/` between `bot` and `<token>`

---------

Co-authored-by: Douglas Reid <doug@steamship.com>

src/steamship/agents/mixins/transports/telegram.py

@@ -296,7 +296,7 @@ def get_api_root(self) -> Optional[str]:
                 # This is a special case for our testing pipeline -- it contains a mock Telegram server.
                 return api_base
             else:
-                return f"{api_base}{bot_token}"
+                return f"{api_base[:-1]}{bot_token}"
         else:
             return None
 

tests/steamship_tests/agents/transports/test_telegram.py

@@ -5,6 +5,8 @@
 from steamship_tests.utils.deployables import deploy_package
 
 from steamship import File, PackageInstance, Steamship
+from steamship.agents.mixins.transports.telegram import TelegramTransport, TelegramTransportConfig
+from steamship.agents.service.agent_service import AgentService
 
 config_template = {
     "telegram_token": {"type": "string", "default": ""},
@@ -13,6 +15,17 @@
 }
 
 
+def test_telegram_api_base():
+    with Steamship.temporary_workspace() as client:
+        transport = TelegramTransport(
+            client=client,
+            agent_service=AgentService(client=client),
+            config=TelegramTransportConfig(),
+        )
+        transport.bot_token = "TOKEN"  # noqa: S105
+        assert transport.get_api_root() == "https://api.telegram.org/botTOKEN"
+
+
 @pytest.mark.usefixtures("client")
 def test_telegram(client: Steamship):