curl --request POST \
  --url https://api.ararahq.com/v1/contacts/batch \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
[
  {
    "name": "João Silva",
    "phone": "+5511999999999",
    "email": "joao@exemplo.com",
    "attributes": {
      "plano": "pro"
    }
  },
  {
    "name": "Maria Santos",
    "phone": "+5511888888888"
  }
]
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify([
    {
      name: 'João Silva',
      phone: '+5511999999999',
      email: 'joao@exemplo.com',
      attributes: {plano: 'pro'}
    },
    {name: 'Maria Santos', phone: '+5511888888888'}
  ])
};

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

import requests

url = "https://api.ararahq.com/v1/contacts/batch"

payload = [
    {
        "name": "João Silva",
        "phone": "+5511999999999",
        "email": "joao@exemplo.com",
        "attributes": { "plano": "pro" }
    },
    {
        "name": "Maria Santos",
        "phone": "+5511888888888"
    }
]
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.ararahq.com/v1/contacts/batch",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    [
        'name' => 'João Silva',
        'phone' => '+5511999999999',
        'email' => 'joao@exemplo.com',
        'attributes' => [
                'plano' => 'pro'
        ]
    ],
    [
        'name' => 'Maria Santos',
        'phone' => '+5511888888888'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}