curl --request POST \
  --url https://api.example.com/api/v1/contacts \
  --header 'Content-Type: application/json' \
  --data '
{
  "phone_number": "<string>"
}
'

import requests

url = "https://api.example.com/api/v1/contacts"

payload = { "phone_number": "<string>" }
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({phone_number: '<string>'})
};

fetch('https://api.example.com/api/v1/contacts', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "phone_number": "<string>",
  "source": "<string>",
  "is_opted_out": true,
  "tags": [
    "<string>"
  ],
  "created_at": "<string>",
  "updated_at": "<string>",
  "name": "<string>",
  "email": "<string>",
  "whatsapp_name": "<string>",
  "profile_picture_url": "<string>",
  "custom_fields": {},
  "source_details": "<string>",
  "opted_out_at": "<string>",
  "last_message_at": "<string>"
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}