curl --request POST \
  --url https://api.getreply.in/v1/messages/link-button \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "to": "+9198250*****",
  "body": "Track your order here.",
  "button_text": "Track order",
  "url": "https://example.com/track/4521"
}
'

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    to: '+9198250*****',
    body: JSON.stringify('Track your order here.'),
    button_text: 'Track order',
    url: 'https://example.com/track/4521'
  })
};

fetch('https://api.getreply.in/v1/messages/link-button', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.getreply.in/v1/messages/link-button",
  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([
    'to' => '+9198250*****',
    'body' => 'Track your order here.',
    'button_text' => 'Track order',
    'url' => 'https://example.com/track/4521'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>"
  ],
]);

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

curl_close($curl);

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

import requests

url = "https://api.getreply.in/v1/messages/link-button"

payload = {
    "to": "+9198250*****",
    "body": "Track your order here.",
    "button_text": "Track order",
    "url": "https://example.com/track/4521"
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)