feat: fix some error

Author: Andy

examples/travel_planner/README.md

@@ -12,7 +12,7 @@
 {
   "model_name":"gemini-2.0-flash",
   "api_key": "API_KEY",
-  "base_url": "https://openrouter.ai/api/v1"
+  "base_url": "https://openRouter.ai/api/v1"
 }
 ```
 2. Create an environment file with your API key:

examples/travel_planner/__main__.py

@@ -4,10 +4,9 @@
 from a2a.server.request_handlers import DefaultRequestHandler
 from a2a.server.tasks import InMemoryTaskStore
 from a2a.types import (
-    AgentAuthentication,
     AgentCapabilities,
     AgentCard,
-    AgentSkill,
+    AgentSkill
 )
 
 
@@ -30,7 +29,6 @@
         defaultOutputModes=['text'],
         capabilities=AgentCapabilities(streaming=True),
         skills=[skill],
-        authentication=AgentAuthentication(schemes=['public']),
     )
 
 

examples/travel_planner/agent.py

@@ -1,9 +1,8 @@
-from langchain_openai import ChatOpenAI
-from langchain_core.messages import HumanMessage, SystemMessage
 import json
 import sys
 import os
-
+from langchain_openai import ChatOpenAI
+from langchain_core.messages import HumanMessage, SystemMessage
 from collections.abc import AsyncGenerator
 
 class TravelPlannerAgent:

examples/travel_planner/agent_executor.py

@@ -1,12 +1,6 @@
-from uuid import uuid4
 from agent import TravelPlannerAgent
-
 from typing_extensions import override
-
-from a2a.types import (
-    TaskArtifactUpdateEvent,
-    TaskStatusUpdateEvent,
-)
+from a2a.types import TaskArtifactUpdateEvent
 from a2a.server.agent_execution import AgentExecutor, RequestContext
 from a2a.server.events import EventQueue
 from a2a.utils import new_text_artifact
@@ -28,10 +22,7 @@ async def execute(
         if not context.message:
             raise Exception('No message provided')
 
-        print(f'query:{query}')
-        print('answer:')
         async for event in self.agent.stream(query):
-            print(event['content'])
             message = TaskArtifactUpdateEvent(
                 contextId=context.context_id,
                 taskId=context.task_id,

examples/travel_planner/config.json

@@ -1,5 +1,5 @@
 {
   "model_name":"gemini-2.0-flash",
   "api_key": "API_KEY",
-  "base_url": "https://openrouter.ai/api/v1"
+  "base_url": "https://openRouter.ai/api/v1"
 }

examples/travel_planner/pyproject.toml

@@ -1,11 +1,11 @@
 [project]
-name = "travel_planner"
+name = "travel-planner-example"
 version = "0.1.0"
 description = "travel planner agent example that only returns Messages"
 readme = "README.md"
 requires-python = ">=3.13"
 dependencies = [
-    "a2a",
+    "a2a-sdk",
     "click>=8.1.8",
     "dotenv>=0.9.9",
     "httpx>=0.28.1",