CopilotStudioSamples/extensibility/a2a/Simple-A2A-Sample/test_agent.http at main · microsoft/CopilotStudioSamples · GitHub

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POST https://<YOUR_URL>/a2a/botanical/v1/message:stream
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": "2d774031-fdac-4d1b-8b46-bfd7544d1b8e",
  "method": "message/send",
  "params": {
    "message": {
      "contextId": "ee1e68ee-75fc-42bb-83d7-25fd26e559c3",
      "kind": "message",
      "messageId": "573c985e-62b2-cdf3-493a-9f6932b3976d",
      "metadata": {
        "copilotstudio.microsoft.com/a2a/chathistory": [
          {
            "HasValue": true,
            "Value": [
              {
                "From": "copilots_header_cr4b0_agent1",
                "Locale": "en-US",
                "Text": "Hello, I'm A2A Agent Demo, a virtual assistant. Just so you are aware, I sometimes use AI to answer your questions. If you provided a website during creation, try asking me about it! Next try giving me some more knowledge by setting up generative AI.",
                "Timestamp": "2025-11-26T23:19:28.764Z"
              },
              {
                "From": "",
                "Locale": "en-US",
                "Text": "Who does require more sunlight: tomato plant or strawberry plant?\n\n",
                "Timestamp": "2025-11-26T23:20:21.484Z"
              }
            ]
          }
        ]
      },
      "parts": [
        {
          "kind": "text",
          "text": "Who does require more sunlight: tomato plant or strawberry plant?"
        }
      ],
      "role": "user"
    }
  }
}