const url = 'https://api.ouro.foundation/routes/hermes/structure/supercell';
const options = {
  method: 'POST',
  headers: {
    'Authorization': 'ApiKey {your-ouro-api-key}',
    'Content-Type': 'application/json'
  }
};
 
const payload = {
  "file": {
    "url": "example_string",
    "type": "example_string",
    "filename": "example_string"
  },
  "size": "2x2x2",
  "symprec": 0.001,
  "angle_tolerance": 5,
  "preserve_symmetry": true
};
options.body = JSON.stringify(payload);
 
fetch(url, options)
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));