curl --request POST \
  --url https://www.chatbase.co/api/v2/agents/{agentId}/whatsapp/messages/template \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "to": "14155552671",
  "from": "14155552672",
  "template": {
    "name": "order_update",
    "language": "en_US",
    "variables": {
      "header": {
        "1": "#1042"
      },
      "body": {
        "1": "Jane",
        "2": "Friday"
      }
    }
  }
}
'

import requests

url = "https://www.chatbase.co/api/v2/agents/{agentId}/whatsapp/messages/template"

payload = {
    "to": "14155552671",
    "from": "14155552672",
    "template": {
        "name": "order_update",
        "language": "en_US",
        "variables": {
            "header": { "1": "#1042" },
            "body": {
                "1": "Jane",
                "2": "Friday"
            }
        }
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    to: '14155552671',
    from: '14155552672',
    template: {
      name: 'order_update',
      language: 'en_US',
      variables: {header: {'1': '#1042'}, body: JSON.stringify({'1': 'Jane', '2': 'Friday'})}
    }
  })
};

fetch('https://www.chatbase.co/api/v2/agents/{agentId}/whatsapp/messages/template', 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://www.chatbase.co/api/v2/agents/{agentId}/whatsapp/messages/template",
  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' => '14155552671',
    'from' => '14155552672',
    'template' => [
        'name' => 'order_update',
        'language' => 'en_US',
        'variables' => [
                'header' => [
                                '1' => '#1042'
                ],
                'body' => [
                                '1' => 'Jane',
                                '2' => 'Friday'
                ]
        ]
    ]
  ]),
  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;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://www.chatbase.co/api/v2/agents/{agentId}/whatsapp/messages/template"

	payload := strings.NewReader("{\n  \"to\": \"14155552671\",\n  \"from\": \"14155552672\",\n  \"template\": {\n    \"name\": \"order_update\",\n    \"language\": \"en_US\",\n    \"variables\": {\n      \"header\": {\n        \"1\": \"#1042\"\n      },\n      \"body\": {\n        \"1\": \"Jane\",\n        \"2\": \"Friday\"\n      }\n    }\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://www.chatbase.co/api/v2/agents/{agentId}/whatsapp/messages/template")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"to\": \"14155552671\",\n  \"from\": \"14155552672\",\n  \"template\": {\n    \"name\": \"order_update\",\n    \"language\": \"en_US\",\n    \"variables\": {\n      \"header\": {\n        \"1\": \"#1042\"\n      },\n      \"body\": {\n        \"1\": \"Jane\",\n        \"2\": \"Friday\"\n      }\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://www.chatbase.co/api/v2/agents/{agentId}/whatsapp/messages/template")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"to\": \"14155552671\",\n  \"from\": \"14155552672\",\n  \"template\": {\n    \"name\": \"order_update\",\n    \"language\": \"en_US\",\n    \"variables\": {\n      \"header\": {\n        \"1\": \"#1042\"\n      },\n      \"body\": {\n        \"1\": \"Jane\",\n        \"2\": \"Friday\"\n      }\n    }\n  }\n}"

response = http.request(request)
puts response.read_body