Upload main.py
Browse files- examples/main.py +214 -0
examples/main.py
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| 1 |
+
from anyio import to_thread
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| 2 |
+
from starlette.applications import Starlette
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| 3 |
+
from starlette.responses import HTMLResponse, JSONResponse
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| 4 |
+
from starlette.routing import Route
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| 5 |
+
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| 6 |
+
from smolagents import CodeAgent, InferenceClientModel, MCPClient
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| 7 |
+
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| 8 |
+
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| 9 |
+
# Create an MCP client to connect to the MCP server
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| 10 |
+
mcp_server_parameters = {
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| 11 |
+
"url": "https://evalstate-hf-mcp-server.hf.space/mcp",
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| 12 |
+
"transport": "streamable-http",
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| 13 |
+
}
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| 14 |
+
mcp_client = MCPClient(server_parameters=mcp_server_parameters)
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| 15 |
+
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| 16 |
+
# Create a CodeAgent with a specific model and the tools from the MCP client
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| 17 |
+
agent = CodeAgent(
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| 18 |
+
model=InferenceClientModel(model_id="Qwen/Qwen2.5-Coder-32B-Instruct"),
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| 19 |
+
tools=mcp_client.get_tools(),
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| 20 |
+
)
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| 21 |
+
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| 22 |
+
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| 23 |
+
# Define the shutdown handler to disconnect the MCP client
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| 24 |
+
async def shutdown():
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| 25 |
+
mcp_client.disconnect()
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| 26 |
+
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| 27 |
+
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| 28 |
+
async def homepage(request):
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| 29 |
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return HTMLResponse(
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| 30 |
+
r"""
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| 31 |
+
<!DOCTYPE html>
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| 32 |
+
<html lang="en">
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| 33 |
+
<head>
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| 34 |
+
<meta charset="UTF-8">
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| 35 |
+
<meta name="viewport" content="width=device-width, initial-scale=1.0">
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| 36 |
+
<title>Smolagents Demo</title>
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| 37 |
+
<style>
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| 38 |
+
body {
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| 39 |
+
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
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| 40 |
+
max-width: 800px;
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| 41 |
+
margin: 0 auto;
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| 42 |
+
padding: 20px;
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| 43 |
+
background-color: #f5f5f5;
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| 44 |
+
}
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| 45 |
+
.container {
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| 46 |
+
background: white;
|
| 47 |
+
border-radius: 12px;
|
| 48 |
+
padding: 30px;
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| 49 |
+
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
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| 50 |
+
}
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| 51 |
+
h1 {
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| 52 |
+
color: #333;
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| 53 |
+
text-align: center;
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| 54 |
+
margin-bottom: 30px;
|
| 55 |
+
}
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| 56 |
+
.chat-container {
|
| 57 |
+
border: 1px solid #ddd;
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| 58 |
+
border-radius: 8px;
|
| 59 |
+
height: 400px;
|
| 60 |
+
overflow-y: auto;
|
| 61 |
+
padding: 15px;
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| 62 |
+
margin-bottom: 20px;
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| 63 |
+
background-color: #fafafa;
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| 64 |
+
}
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| 65 |
+
.message {
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| 66 |
+
margin-bottom: 15px;
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| 67 |
+
padding: 10px;
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| 68 |
+
border-radius: 6px;
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| 69 |
+
}
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| 70 |
+
.user-message {
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| 71 |
+
background-color: #007bff;
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| 72 |
+
color: white;
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| 73 |
+
margin-left: 50px;
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| 74 |
+
}
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| 75 |
+
.agent-message {
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| 76 |
+
background-color: #e9ecef;
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| 77 |
+
color: #333;
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| 78 |
+
margin-right: 50px;
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| 79 |
+
}
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| 80 |
+
.input-container {
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| 81 |
+
display: flex;
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| 82 |
+
gap: 10px;
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| 83 |
+
}
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| 84 |
+
input[type="text"] {
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| 85 |
+
flex: 1;
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| 86 |
+
padding: 12px;
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| 87 |
+
border: 1px solid #ddd;
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| 88 |
+
border-radius: 6px;
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| 89 |
+
font-size: 16px;
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| 90 |
+
}
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| 91 |
+
button {
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| 92 |
+
padding: 12px 24px;
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| 93 |
+
background-color: #007bff;
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| 94 |
+
color: white;
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| 95 |
+
border: none;
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| 96 |
+
border-radius: 6px;
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| 97 |
+
cursor: pointer;
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| 98 |
+
font-size: 16px;
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| 99 |
+
}
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| 100 |
+
button:hover {
|
| 101 |
+
background-color: #0056b3;
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| 102 |
+
}
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| 103 |
+
button:disabled {
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| 104 |
+
background-color: #ccc;
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| 105 |
+
cursor: not-allowed;
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| 106 |
+
}
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| 107 |
+
.loading {
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| 108 |
+
color: #666;
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| 109 |
+
font-style: italic;
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| 110 |
+
}
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| 111 |
+
</style>
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| 112 |
+
</head>
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| 113 |
+
<body>
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| 114 |
+
<div class="container">
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| 115 |
+
<h1>🤖 Smolagents Demo</h1>
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| 116 |
+
<div class="chat-container" id="chat-container">
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| 117 |
+
<div class="message agent-message">
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| 118 |
+
Hello! I'm a code agent with access to MCP tools. Ask me anything!
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| 119 |
+
</div>
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| 120 |
+
</div>
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| 121 |
+
<div class="input-container">
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| 122 |
+
<input type="text" id="message-input" placeholder="Ask me anything..." autofocus>
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| 123 |
+
<button onclick="sendMessage()" id="send-button">Send</button>
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| 124 |
+
</div>
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| 125 |
+
</div>
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| 126 |
+
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| 127 |
+
<script>
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| 128 |
+
const chatContainer = document.getElementById('chat-container');
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| 129 |
+
const messageInput = document.getElementById('message-input');
|
| 130 |
+
const sendButton = document.getElementById('send-button');
|
| 131 |
+
|
| 132 |
+
function addMessage(content, isUser = false) {
|
| 133 |
+
const messageDiv = document.createElement('div');
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| 134 |
+
messageDiv.className = `message ${isUser ? 'user-message' : 'agent-message'}`;
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| 135 |
+
messageDiv.textContent = content;
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| 136 |
+
chatContainer.appendChild(messageDiv);
|
| 137 |
+
chatContainer.scrollTop = chatContainer.scrollHeight;
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| 138 |
+
}
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| 139 |
+
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| 140 |
+
async function sendMessage() {
|
| 141 |
+
const message = messageInput.value.trim();
|
| 142 |
+
if (!message) return;
|
| 143 |
+
|
| 144 |
+
// Add user message
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| 145 |
+
addMessage(message, true);
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| 146 |
+
messageInput.value = '';
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| 147 |
+
sendButton.disabled = true;
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| 148 |
+
sendButton.textContent = 'Sending...';
|
| 149 |
+
|
| 150 |
+
// Add loading indicator
|
| 151 |
+
const loadingDiv = document.createElement('div');
|
| 152 |
+
loadingDiv.className = 'message agent-message loading';
|
| 153 |
+
loadingDiv.textContent = 'Thinking...';
|
| 154 |
+
chatContainer.appendChild(loadingDiv);
|
| 155 |
+
chatContainer.scrollTop = chatContainer.scrollHeight;
|
| 156 |
+
|
| 157 |
+
try {
|
| 158 |
+
const response = await fetch('/chat', {
|
| 159 |
+
method: 'POST',
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| 160 |
+
headers: {
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| 161 |
+
'Content-Type': 'application/json',
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| 162 |
+
},
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| 163 |
+
body: JSON.stringify({ message }),
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| 164 |
+
});
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| 165 |
+
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| 166 |
+
const data = await response.json();
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| 167 |
+
|
| 168 |
+
// Remove loading indicator
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| 169 |
+
chatContainer.removeChild(loadingDiv);
|
| 170 |
+
|
| 171 |
+
// Add agent response
|
| 172 |
+
addMessage(data.reply);
|
| 173 |
+
} catch (error) {
|
| 174 |
+
// Remove loading indicator
|
| 175 |
+
chatContainer.removeChild(loadingDiv);
|
| 176 |
+
addMessage(`Error: ${error.message}`);
|
| 177 |
+
} finally {
|
| 178 |
+
sendButton.disabled = false;
|
| 179 |
+
sendButton.textContent = 'Send';
|
| 180 |
+
messageInput.focus();
|
| 181 |
+
}
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| 182 |
+
}
|
| 183 |
+
|
| 184 |
+
// Send message on Enter key
|
| 185 |
+
messageInput.addEventListener('keypress', function(e) {
|
| 186 |
+
if (e.key === 'Enter') {
|
| 187 |
+
sendMessage();
|
| 188 |
+
}
|
| 189 |
+
});
|
| 190 |
+
</script>
|
| 191 |
+
</body>
|
| 192 |
+
</html>
|
| 193 |
+
"""
|
| 194 |
+
)
|
| 195 |
+
|
| 196 |
+
|
| 197 |
+
async def chat(request):
|
| 198 |
+
data = await request.json()
|
| 199 |
+
message = data.get("message", "").strip()
|
| 200 |
+
# Run in a thread to avoid blocking the event loop
|
| 201 |
+
result = await to_thread.run_sync(agent.run, message)
|
| 202 |
+
# Format the result if it's a complex data structure
|
| 203 |
+
reply = str(result)
|
| 204 |
+
return JSONResponse({"reply": reply})
|
| 205 |
+
|
| 206 |
+
|
| 207 |
+
app = Starlette(
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| 208 |
+
debug=True,
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| 209 |
+
routes=[
|
| 210 |
+
Route("/", homepage),
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| 211 |
+
Route("/chat", chat, methods=["POST"]),
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| 212 |
+
],
|
| 213 |
+
on_shutdown=[shutdown], # Register the shutdown handler: disconnect the MCP client
|
| 214 |
+
)
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