@interopio/gateway-server/src/utils.ts

## `@glue42/gateway-ent` compatibility

import {type Socket} from 'node:net';

export function socketKey(socket: Socket): string {
    const remoteIp = socket.remoteAddress;
    if (!remoteIp) {
        throw new Error('Socket has no remote address');
    }
    return `${remoteIp}:${socket.remotePort}`;
}