const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    servers: [
      {
        hostname: '<string>',
        bmcAddress: '<string>',
        serialNumber: '<string>',
        tags: {}
      }
    ]
  })
};

fetch('https://api.example.com/v1/regions/{region}/infrastructure/servers/batch', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "success": true,
  "data": [
    {
      "id": "<string>",
      "hostname": "<string>",
      "status": "available",
      "health": "healthy",
      "regionId": "<string>",
      "createdAt": "2023-11-07T05:31:56Z",
      "serialNumber": "<string>",
      "bmcAddress": "<string>",
      "profileId": "<string>",
      "specs": {
        "cpu": "<string>",
        "memoryGB": 123,
        "storageGB": 123,
        "nics": 123
      },
      "tags": {},
      "updatedAt": "2023-11-07T05:31:56Z"
    }
  ],
  "meta": {
    "total": 123
  }
}