config-resources.ts•4.5 kB
/**
* Configuration Resources
*
* Example MCP resources that provide configuration and settings information.
*/
import { McpServer, ResourceTemplate } from "@modelcontextprotocol/sdk/server/mcp.js";
import type { MCPModule } from "../types/index.js";
/**
* Resource registration function for configuration data
*/
async function register(server: McpServer): Promise<void> {
// Register static configuration resource
server.registerResource(
"app-config",
"config://app",
{
title: "Application Configuration",
description: "Application configuration and settings",
mimeType: "application/json"
},
async (uri) => {
const config = {
name: "Demo MCP Server",
version: "1.0.0",
environment: process.env.NODE_ENV || "development",
features: {
tools: true,
resources: true,
prompts: true,
logging: true
},
limits: {
maxRequestSize: "10MB",
requestTimeout: "30s",
maxConcurrentRequests: 100
},
created: new Date().toISOString()
};
return {
contents: [
{
uri: uri.href,
mimeType: "application/json",
text: JSON.stringify(config, null, 2)
}
]
};
}
);
// Register dynamic settings resource template
server.registerResource(
"setting",
new ResourceTemplate("settings://{category}/{key}", { list: undefined }),
{
title: "Configuration Setting",
description: "Access specific configuration settings by category and key"
},
async (uri, { category, key }) => {
// Mock configuration data - in a real app this would come from a config store
const mockSettings: Record<string, Record<string, any>> = {
server: {
port: 3000,
host: "localhost",
ssl: false,
maxConnections: 1000
},
database: {
host: "localhost",
port: 5432,
name: "mcp_demo",
ssl: true
},
logging: {
level: "info",
format: "json",
destination: "console"
},
features: {
analytics: true,
monitoring: true,
debugging: false
}
};
const categorySettings = mockSettings[category as string];
if (!categorySettings) {
return {
contents: [
{
uri: uri.href,
mimeType: "text/plain",
text: `Configuration category '${category}' not found`
}
]
};
}
const value = categorySettings[key as string];
if (value === undefined) {
return {
contents: [
{
uri: uri.href,
mimeType: "text/plain",
text: `Setting '${key}' not found in category '${category}'`
}
]
};
}
return {
contents: [
{
uri: uri.href,
mimeType: "application/json",
text: JSON.stringify({
category,
key,
value,
type: typeof value,
timestamp: new Date().toISOString()
}, null, 2)
}
]
};
}
);
// Register health check resource
server.registerResource(
"health",
"health://status",
{
title: "Health Status",
description: "System health and status information",
mimeType: "application/json"
},
async (uri) => {
const health = {
status: "healthy",
timestamp: new Date().toISOString(),
uptime: process.uptime(),
memory: process.memoryUsage(),
version: process.version,
checks: {
server: "ok",
memory: process.memoryUsage().heapUsed < 500 * 1024 * 1024 ? "ok" : "warning",
uptime: process.uptime() > 0 ? "ok" : "error"
}
};
return {
contents: [
{
uri: uri.href,
mimeType: "application/json",
text: JSON.stringify(health, null, 2)
}
]
};
}
);
}
/**
* Export the MCP module
*/
export const configResources: MCPModule = {
register,
metadata: {
name: "config-resources",
description: "Configuration and settings resources for MCP",
version: "1.0.0",
author: "PCN"
}
};
export default configResources;