1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
| from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from typing import List, Optional, Dict, Any
from enum import Enum
import uuid
from datetime import datetime
app = FastAPI()
class TaskState(Enum):
SUBMITTED = "submitted"
WORKING = "working"
INPUT_REQUIRED = "input_required"
COMPLETED = "completed"
CANCELED = "canceled"
FAILED = "failed"
class Part(BaseModel):
type: str
text: Optional[str] = None
data: Optional[Dict[str, Any]] = None
class Message(BaseModel):
role: str
parts: List[Part]
class TaskStatus(BaseModel):
state: TaskState
message: Optional[str] = None
timestamp: str = None
class Task(BaseModel):
id: str
sessionId: Optional[str] = None
status: TaskStatus
artifacts: List[Dict] = []
history: List[Message] = []
class SendTaskRequest(BaseModel):
id: Optional[str] = None
sessionId: Optional[str] = None
message: Message
acceptedOutputModes: List[str] = ["text/plain"]
tasks: Dict[str, Task] = {}
@app.get("/.well-known/agent.json")
async def get_agent_card():
return {
"name": "WeatherAgent",
"description": "提供全球天气查询服务",
"url": "https://weather-agent.example.com",
"version": "1.0.0",
"capabilities": {
"streaming": True,
"pushNotifications": False
},
"skills": [
{
"id": "get_weather",
"name": "查询天气",
"description": "查询指定城市的当前天气和预报",
"examples": [
"北京今天天气怎么样",
"查询上海未来三天的天气"
]
}
]
}
@app.post("/tasks/send")
async def send_task(request: SendTaskRequest):
task_id = request.id or str(uuid.uuid4())
if task_id in tasks:
task = tasks[task_id]
task.history.append(request.message)
else:
task = Task(
id=task_id,
sessionId=request.sessionId or str(uuid.uuid4()),
status=TaskStatus(
state=TaskState.SUBMITTED,
timestamp=datetime.now().isoformat()
),
history=[request.message]
)
tasks[task_id] = task
result = await process_task(task, request.message)
return {
"id": task.id,
"sessionId": task.sessionId,
"status": task.status.dict(),
"artifacts": task.artifacts
}
async def process_task(task: Task, message: Message) -> Task:
"""处理任务逻辑"""
task.status = TaskStatus(
state=TaskState.WORKING,
message="正在查询天气信息...",
timestamp=datetime.now().isoformat()
)
user_text = ""
for part in message.parts:
if part.type == "text" or part.type == "text/plain":
user_text = part.text
break
weather_result = get_weather_data(user_text)
task.status = TaskStatus(
state=TaskState.COMPLETED,
timestamp=datetime.now().isoformat()
)
task.artifacts = [{
"name": "weather_info",
"parts": [{
"type": "text/plain",
"text": weather_result
}]
}]
task.history.append(Message(
role="agent",
parts=[Part(type="text", text=weather_result)]
))
return task
def get_weather_data(query: str) -> str:
"""模拟天气数据获取"""
return f"根据您的查询'{query}'，北京今天晴，气温15-23°C，适合外出。"
@app.get("/tasks/{task_id}")
async def get_task(task_id: str):
if task_id not in tasks:
raise HTTPException(status_code=404, detail="Task not found")
return tasks[task_id]
@app.post("/tasks/{task_id}/cancel")
async def cancel_task(task_id: str):
if task_id not in tasks:
raise HTTPException(status_code=404, detail="Task not found")
task = tasks[task_id]
task.status = TaskStatus(
state=TaskState.CANCELED,
message="任务已取消",
timestamp=datetime.now().isoformat()
)
return {"status": "canceled"}
|
