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// Mock MCP server for testing
import express from 'express';
import cors from 'cors';
const app = express();
const port = 7861;
app.use(cors());
app.use(express.json());
// Mock MCP tools
const mockTools = [
{
name: 'web-search',
description: 'Search the web for information',
parameters: {
query: {
type: 'string',
description: 'The search query'
}
}
},
{
name: 'weather',
description: 'Get current weather information',
parameters: {
location: {
type: 'string',
description: 'The location to get weather for'
}
}
},
{
name: 'calculator',
description: 'Perform mathematical calculations',
parameters: {
expression: {
type: 'string',
description: 'The mathematical expression to evaluate'
}
}
}
];
// MCP discovery endpoint
app.post('/', (req, res) => {
const { type } = req.body;
if (type === 'discovery') {
console.log('Received discovery request');
res.json({
tools: mockTools
});
} else if (type === 'tool_execution') {
const { tool, parameters } = req.body;
console.log(`Executing tool: ${tool} with parameters:`, parameters);
// Mock responses for different tools
if (tool === 'web-search') {
res.json({
result: `Search results for: ${parameters.query || 'unknown query'}`,
links: [
{ title: 'Example result 1', url: 'https://example.com/1' },
{ title: 'Example result 2', url: 'https://example.com/2' }
]
});
} else if (tool === 'weather') {
res.json({
location: parameters.location || 'unknown location',
temperature: '22°C',
condition: 'Sunny',
humidity: '45%'
});
} else if (tool === 'calculator') {
let result;
try {
// Simple evaluation (not secure for production)
result = eval(parameters.expression);
} catch (error) {
result = 'Error evaluating expression';
}
res.json({
expression: parameters.expression,
result: result
});
} else {
res.status(400).json({ error: `Unknown tool: ${tool}` });
}
} else {
res.status(400).json({ error: 'Invalid request type' });
}
});
const server = app.listen(port, () => {
console.log(`Mock MCP server running at http://localhost:${port}`);
});
export default { app, server };
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