curl --request POST \
  --url https://api.ararahq.com/v1/conversations/reply \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "conversationId": "3f1c2b4a-5d6e-4f70-8a9b-0c1d2e3f4a5b",
  "body": "Seu pedido sai hoje."
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    conversationId: '3f1c2b4a-5d6e-4f70-8a9b-0c1d2e3f4a5b',
    body: JSON.stringify('Seu pedido sai hoje.')
  })
};

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

import requests

url = "https://api.ararahq.com/v1/conversations/reply"

payload = {
    "conversationId": "3f1c2b4a-5d6e-4f70-8a9b-0c1d2e3f4a5b",
    "body": "Seu pedido sai hoje."
}
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/conversations/reply",
  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([
    'conversationId' => '3f1c2b4a-5d6e-4f70-8a9b-0c1d2e3f4a5b',
    'body' => 'Seu pedido sai hoje.'
  ]),
  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;
}