70 lines
2.3 KiB
JavaScript
70 lines
2.3 KiB
JavaScript
#!/usr/bin/env node
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/**
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* Example MCP server using the high-level McpServer API with outputSchema
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* This demonstrates how to easily create tools with structured output
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*/
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import { McpServer } from '../../server/mcp.js';
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import { StdioServerTransport } from '../../server/stdio.js';
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import * as z from 'zod/v4';
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const server = new McpServer({
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name: 'mcp-output-schema-high-level-example',
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version: '1.0.0'
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});
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// Define a tool with structured output - Weather data
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server.registerTool('get_weather', {
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description: 'Get weather information for a city',
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inputSchema: {
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city: z.string().describe('City name'),
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country: z.string().describe('Country code (e.g., US, UK)')
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},
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outputSchema: {
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temperature: z.object({
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celsius: z.number(),
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fahrenheit: z.number()
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}),
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conditions: z.enum(['sunny', 'cloudy', 'rainy', 'stormy', 'snowy']),
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humidity: z.number().min(0).max(100),
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wind: z.object({
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speed_kmh: z.number(),
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direction: z.string()
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})
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}
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}, async ({ city, country }) => {
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// Parameters are available but not used in this example
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void city;
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void country;
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// Simulate weather API call
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const temp_c = Math.round((Math.random() * 35 - 5) * 10) / 10;
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const conditions = ['sunny', 'cloudy', 'rainy', 'stormy', 'snowy'][Math.floor(Math.random() * 5)];
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const structuredContent = {
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temperature: {
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celsius: temp_c,
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fahrenheit: Math.round(((temp_c * 9) / 5 + 32) * 10) / 10
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},
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conditions,
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humidity: Math.round(Math.random() * 100),
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wind: {
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speed_kmh: Math.round(Math.random() * 50),
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direction: ['N', 'NE', 'E', 'SE', 'S', 'SW', 'W', 'NW'][Math.floor(Math.random() * 8)]
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}
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};
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return {
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content: [
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{
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type: 'text',
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text: JSON.stringify(structuredContent, null, 2)
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}
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],
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structuredContent
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};
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});
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async function main() {
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const transport = new StdioServerTransport();
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await server.connect(transport);
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console.error('High-level Output Schema Example Server running on stdio');
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}
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main().catch(error => {
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console.error('Server error:', error);
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process.exit(1);
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});
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//# sourceMappingURL=mcpServerOutputSchema.js.map
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