Fix name of GetResourceOauth2Token parameter (#12)

Author: brianlaoaws

src/bedrock_agentcore/services/identity.py

@@ -152,7 +152,7 @@ async def get_token(
 
         # Add optional parameters
         if callback_url:
-            req["callBackUrl"] = callback_url
+            req["resourceOauth2ReturnUrl"] = callback_url
         if force_authentication:
             req["forceAuthentication"] = force_authentication
 

tests/bedrock_agentcore/services/test_identity.py

@@ -258,7 +258,7 @@ async def test_get_token_with_optional_parameters(self):
                 scopes=scopes,
                 oauth2Flow="USER_FEDERATION",
                 workloadIdentityToken=agent_identity_token,
-                callBackUrl=callback_url,
+                resourceOauth2ReturnUrl=callback_url,
                 forceAuthentication=force_authentication,
             )