curl --request POST \
  --url https://api.sendrealm.com/contacts/lookup \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "jsmith@example.com"
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({email: 'jsmith@example.com'})
};

fetch('https://api.sendrealm.com/contacts/lookup', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://api.sendrealm.com/contacts/lookup"

payload = { "email": "jsmith@example.com" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "status": 123,
  "data": null,
  "error": null,
  "metadata": null
}

{
  "status": 123,
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": null
  }
}