import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js';
import { z } from 'zod';
import { formatResponse } from './utils/formatter.js';
import { exampleDataOperation } from './tools/example-tools.js';
/**
* Create a test server instance for integration testing
* This mirrors the main server.ts configuration but returns the server instance
*/
export function createServer() {
const server = new McpServer({
name: 'mcp-server-boilerplate',
version: '0.1.0',
});
// Tool 1: Simple data retrieval
server.tool(
'get_data',
'Retrieve data from your custom data source with optional filtering and pagination.',
{
limit: z.number().min(1).max(100).optional().default(10).describe('Maximum number of items to return (1-100)'),
filter: z.string().optional().describe('Filter criteria for the data'),
includeMetadata: z.boolean().optional().default(false).describe('Include additional metadata in the response'),
outputMode: z.enum(['json', 'compact-json']).optional().default('json').describe('Output format: "json" for formatted JSON (default), "compact-json" for minified JSON')
},
async (input) => {
try {
const result = await exampleDataOperation({
limit: input.limit,
filter: input.filter,
includeMetadata: input.includeMetadata
});
return {
content: [{
type: 'text',
text: formatResponse(result, input.outputMode)
}]
};
} catch (error) {
return {
content: [{
type: 'text',
text: `Error: ${error instanceof Error ? error.message : 'Unknown error occurred'}`
}]
};
}
}
);
// Tool 2: System utilities
server.tool(
'get_system_info',
'Get system information and utilities. Provides current date, timezone, and other helpful context.',
{
info: z.enum(['date', 'timezone', 'version', 'all']).optional().default('all').describe('Type of system information to retrieve')
},
async (input) => {
const now = new Date();
const currentDate = now.toISOString().split('T')[0];
const currentTime = now.toISOString();
const timezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
const version = '0.1.0';
let response = '';
switch (input.info) {
case 'date':
response = `Current date: ${currentDate}`;
break;
case 'timezone':
response = `Timezone: ${timezone}`;
break;
case 'version':
response = `Server version: ${version}`;
break;
default:
response = [
`Current date: ${currentDate}`,
`Current time: ${currentTime}`,
`Timezone: ${timezone}`,
`Server version: ${version}`,
``,
`Use this information for date filtering and context.`
].join('\n');
}
return {
content: [{
type: 'text',
text: response
}]
};
}
);
return server;
}
