1  import os from 'os'
 2  
 3  export function localIP(): string {
 4    for (const interfaces of Object.values(os.networkInterfaces())) {
 5      if (!interfaces) continue
 6      for (const network of interfaces) {
 7        if (network.family === 'IPv4' && !network.internal) return network.address
 8      }
 9    }
10    return 'localhost'
11  }