#!/usr/bin/env node
import * as config from './config';
import * as logger from './logger';
import { startStdioServer, startStreamableHTTPServer } from './mcp-server';
import { Command, Option, InvalidOptionArgumentError } from 'commander';
type Options = {
transport: 'stdio' | 'streamable-http';
port: number;
};
function _parsePort(value: string): number {
const n: number = Number(value);
if (!Number.isInteger(n) || n < 1 || n > 65535) {
throw new InvalidOptionArgumentError(
'port must be an integer between 1 and 65535'
);
}
return n;
}
function _getOptions(): Options {
const program: Command = new Command()
.addOption(
new Option('--transport <type>', 'transport type')
.choices(['stdio', 'streamable-http'])
.default('stdio')
)
.addOption(
new Option('--port <number>', 'port for Streamable HTTP transport')
.argParser(_parsePort)
.default(config.PORT)
)
.allowUnknownOption()
.parse(process.argv);
return program.opts<Options>();
}
async function main(): Promise<void> {
const options: Options = _getOptions();
if (options.transport === 'stdio') {
logger.disable();
await startStdioServer();
} else if (options.transport === 'streamable-http') {
logger.info('Starting MCP server...');
await startStreamableHTTPServer(options.port);
logger.info('Started MCP Server');
} else {
logger.error(`Invalid transport: ${options.transport}`);
process.exit(1);
}
}
main().catch((err: any): never => {
logger.enable();
logger.error('MCP server error', err);
process.exit(1);
});
