curl --request POST \
  --url https://developer.world.org/api/v2/verify/{app_id} \
  --header 'Content-Type: application/json' \
  --data '
{
  "nullifier_hash": "0x2bf8406809dcefb1486dadc96c0a897db9bab002053054cf64272db512c6fbd8",
  "merkle_root": "0x2264a66d162d7893e12ea8e3c072c51e785bc085ad655f64c10c1a61e00f0bc2",
  "proof": "0x1aa8b8f3b2d2de5ff452c0e1a83e29d6bf46fb83ef35dc5957121ff3d3698a1119090fb...",
  "verification_level": "orb",
  "action": "my_action"
}
'

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    nullifier_hash: '0x2bf8406809dcefb1486dadc96c0a897db9bab002053054cf64272db512c6fbd8',
    merkle_root: '0x2264a66d162d7893e12ea8e3c072c51e785bc085ad655f64c10c1a61e00f0bc2',
    proof: '0x1aa8b8f3b2d2de5ff452c0e1a83e29d6bf46fb83ef35dc5957121ff3d3698a1119090fb...',
    verification_level: 'orb',
    action: 'my_action'
  })
};

fetch('https://developer.world.org/api/v2/verify/{app_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));