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86 lines
2.6 KiB
Python
86 lines
2.6 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""A2A Client for integration tests."""
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from a2a.client.client_factory import ClientFactory as A2AClientFactory
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from a2a.extensions.common import HTTP_EXTENSION_HEADER
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from google.adk.a2a import _compat
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from google.adk.a2a.agent.interceptors.new_integration_extension import _NEW_A2A_ADK_INTEGRATION_EXTENSION
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from google.adk.agents.remote_a2a_agent import RemoteA2aAgent
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import httpx
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from .server import agent_card
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def create_client(app, streaming: bool = False) -> RemoteA2aAgent:
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"""Creates a RemoteA2aAgent connected to the provided FastAPI app.
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Args:
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app: The FastAPI application (server) to connect to.
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streaming: Whether to enable streaming mode in the client.
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Returns:
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A RemoteA2aAgent instance.
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"""
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client = httpx.AsyncClient(
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transport=httpx.ASGITransport(app=app), base_url="http://test"
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)
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client_config = _compat.make_client_config(
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httpx_client=client,
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streaming=streaming,
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polling=False,
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)
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factory = A2AClientFactory(config=client_config)
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# use_legacy=False forces the new implementation
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agent = RemoteA2aAgent(
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name="remote_agent",
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agent_card=agent_card,
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a2a_client_factory=factory,
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use_legacy=False,
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)
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return agent
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def create_a2a_client(app, streaming: bool = False):
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"""Creates a bare A2A Client connected to the provided FastAPI app.
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This is in contrast to create_client, which wraps the a2a_client into a
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RemoteA2aAgent for the standard runner framework ecosystem execution.
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Args:
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app: The FastAPI application (server) to connect to.
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streaming: Whether to enable streaming mode in the client.
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Returns:
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An A2A Client instance.
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"""
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client = httpx.AsyncClient(
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transport=httpx.ASGITransport(app=app),
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base_url="http://test",
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headers={HTTP_EXTENSION_HEADER: _NEW_A2A_ADK_INTEGRATION_EXTENSION},
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)
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client_config = _compat.make_client_config(
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httpx_client=client,
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streaming=streaming,
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polling=False,
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)
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factory = A2AClientFactory(config=client_config)
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return factory.create(agent_card)
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