curl --request POST \
  --url https://messenger-public-api.cogfy.com/messages/template \
  --header 'Content-Type: application/json' \
  --header 'api-key: <api-key>' \
  --data '
{
  "from": "5511999998888",
  "to": "5599888887777",
  "template": {
    "name": "appointment_reminder",
    "language": {
      "code": "pt_BR"
    },
    "components": [
      {
        "type": "body",
        "parameters": [
          {
            "type": "text",
            "text": "John"
          }
        ]
      }
    ]
  }
}
'

import requests

url = "https://messenger-public-api.cogfy.com/messages/template"

payload = {
    "from": "5511999998888",
    "to": "5599888887777",
    "template": {
        "name": "appointment_reminder",
        "language": { "code": "pt_BR" },
        "components": [
            {
                "type": "body",
                "parameters": [
                    {
                        "type": "text",
                        "text": "John"
                    }
                ]
            }
        ]
    }
}
headers = {
    "api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    from: '5511999998888',
    to: '5599888887777',
    template: {
      name: 'appointment_reminder',
      language: {code: 'pt_BR'},
      components: [{type: 'body', parameters: [{type: 'text', text: 'John'}]}]
    }
  })
};

fetch('https://messenger-public-api.cogfy.com/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://messenger-public-api.cogfy.com/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([
    'from' => '5511999998888',
    'to' => '5599888887777',
    'template' => [
        'name' => 'appointment_reminder',
        'language' => [
                'code' => 'pt_BR'
        ],
        'components' => [
                [
                                'type' => 'body',
                                'parameters' => [
                                                                [
                                                                                                                                'type' => 'text',
                                                                                                                                'text' => 'John'
                                                                ]
                                ]
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "api-key: <api-key>"
  ],
]);

$response = curl_exec($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://messenger-public-api.cogfy.com/messages/template"

	payload := strings.NewReader("{\n  \"from\": \"5511999998888\",\n  \"to\": \"5599888887777\",\n  \"template\": {\n    \"name\": \"appointment_reminder\",\n    \"language\": {\n      \"code\": \"pt_BR\"\n    },\n    \"components\": [\n      {\n        \"type\": \"body\",\n        \"parameters\": [\n          {\n            \"type\": \"text\",\n            \"text\": \"John\"\n          }\n        ]\n      }\n    ]\n  }\n}")

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

	req.Header.Add("api-key", "<api-key>")
	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://messenger-public-api.cogfy.com/messages/template")
  .header("api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"from\": \"5511999998888\",\n  \"to\": \"5599888887777\",\n  \"template\": {\n    \"name\": \"appointment_reminder\",\n    \"language\": {\n      \"code\": \"pt_BR\"\n    },\n    \"components\": [\n      {\n        \"type\": \"body\",\n        \"parameters\": [\n          {\n            \"type\": \"text\",\n            \"text\": \"John\"\n          }\n        ]\n      }\n    ]\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://messenger-public-api.cogfy.com/messages/template")

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

request = Net::HTTP::Post.new(url)
request["api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"from\": \"5511999998888\",\n  \"to\": \"5599888887777\",\n  \"template\": {\n    \"name\": \"appointment_reminder\",\n    \"language\": {\n      \"code\": \"pt_BR\"\n    },\n    \"components\": [\n      {\n        \"type\": \"body\",\n        \"parameters\": [\n          {\n            \"type\": \"text\",\n            \"text\": \"John\"\n          }\n        ]\n      }\n    ]\n  }\n}"

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

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "contact": {
    "waId": "<string>",
    "waUserId": "<string>"
  }
}

{
  "status": 123,
  "title": "<string>",
  "detail": "<string>",
  "code": 123
}

{
  "status": 123,
  "title": "<string>",
  "detail": "<string>",
  "code": 123
}

{
  "status": 123,
  "title": "<string>",
  "detail": "<string>",
  "code": 123
}