jsonrpc-mcp-server.js•3.29 kB
/**
* Servidor MCP com formato JSON-RPC 2.0 para Smithery
*
* Este servidor implementa apenas o necessário para listar ferramentas
* no formato JSON-RPC 2.0 exigido pelo Smithery.
*/
const express = require('express');
const cors = require('cors');
const app = express();
const port = process.env.PORT || 3000;
// Definição das ferramentas
const tools = [
{
name: 'create-payment',
description: 'Creates a new payment in the Gotas Commerce API',
parameters: {
type: 'object',
properties: {
amount: {
type: 'number',
description: 'Payment amount (e.g., 100.50)'
},
currency: {
type: 'string',
description: 'Currency code (e.g., "USDT")'
},
return_url: {
type: 'string',
description: 'URL to redirect customer after payment'
},
description: {
type: 'string',
description: 'Optional description of the payment'
}
},
required: ['amount', 'currency', 'return_url']
}
},
{
name: 'check-payment-status',
description: 'Checks the status of an existing payment',
parameters: {
type: 'object',
properties: {
payment_id: {
type: 'string',
description: 'Identifier of the payment to check'
}
},
required: ['payment_id']
}
}
];
// Middleware para processar JSON
app.use(express.json());
// Middleware para CORS
app.use(cors({
origin: '*',
methods: ['GET', 'POST', 'DELETE', 'OPTIONS'],
allowedHeaders: ['Content-Type', 'Accept', 'Mcp-Session-Id', 'Origin', 'X-Requested-With']
}));
// Middleware para logging
app.use((req, res, next) => {
console.log(`${new Date().toISOString()} - ${req.method} ${req.originalUrl}`);
next();
});
// Endpoint para listar ferramentas - responde a qualquer método
app.all('/mcp', (req, res) => {
console.log('Requisição recebida em /mcp:', {
method: req.method,
query: req.query,
body: req.body,
headers: req.headers
});
// Responder com a lista de ferramentas no formato JSON-RPC 2.0
res.json({
jsonrpc: "2.0",
id: "1",
result: {
tools: tools
}
});
});
// Endpoint específico para listar ferramentas
app.all('/mcp/list-tools', (req, res) => {
console.log('Requisição recebida em /mcp/list-tools');
// Responder com a lista de ferramentas no formato JSON-RPC 2.0
res.json({
jsonrpc: "2.0",
id: "1",
result: {
tools: tools
}
});
});
// Rota raiz para verificação de saúde
app.get('/', (req, res) => {
res.json({
status: 'ok',
message: 'Gotas Commerce MCP Server is running',
version: '1.0.0'
});
});
// Iniciar o servidor
const server = app.listen(port, () => {
console.log(`JSON-RPC MCP Server running on port ${port}`);
console.log(`MCP endpoint available at: http://localhost:${port}/mcp`);
});
// Lidar com sinais de encerramento
process.on('SIGTERM', () => {
console.log('SIGTERM signal received: closing HTTP server');
server.close(() => {
console.log('HTTP server closed');
});
});
process.on('SIGINT', () => {
console.log('SIGINT signal received: closing HTTP server');
server.close(() => {
console.log('HTTP server closed');
});
});