curl --request POST \
  --url https://lancepilot.com/api/v3/workspaces/{workspace}/contacts/number/{number}/template-messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "template_id": 123,
  "template_data": {
    "header": {
      "variables": [
        "Premium Member"
      ],
      "file": "https://example.com/product-image.jpg"
    },
    "buttons": [
      {
        "type": "URL",
        "variables": [
          "promo-code-2025"
        ]
      }
    ]
  }
}
'

import requests

url = "https://lancepilot.com/api/v3/workspaces/{workspace}/contacts/number/{number}/template-messages"

payload = {
    "template_id": 123,
    "template_data": {
        "header": {
            "variables": ["Premium Member"],
            "file": "https://example.com/product-image.jpg"
        },
        "buttons": [
            {
                "type": "URL",
                "variables": ["promo-code-2025"]
            }
        ]
    }
}
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({
    template_id: 123,
    template_data: {
      header: {variables: ['Premium Member'], file: 'https://example.com/product-image.jpg'},
      buttons: [{type: 'URL', variables: ['promo-code-2025']}]
    }
  })
};

fetch('https://lancepilot.com/api/v3/workspaces/{workspace}/contacts/number/{number}/template-messages', 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://lancepilot.com/api/v3/workspaces/{workspace}/contacts/number/{number}/template-messages",
  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([
    'template_id' => 123,
    'template_data' => [
        'header' => [
                'variables' => [
                                'Premium Member'
                ],
                'file' => 'https://example.com/product-image.jpg'
        ],
        'buttons' => [
                [
                                'type' => 'URL',
                                'variables' => [
                                                                'promo-code-2025'
                                ]
                ]
        ]
    ]
  ]),
  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://lancepilot.com/api/v3/workspaces/{workspace}/contacts/number/{number}/template-messages"

	payload := strings.NewReader("{\n  \"template_id\": 123,\n  \"template_data\": {\n    \"header\": {\n      \"variables\": [\n        \"Premium Member\"\n      ],\n      \"file\": \"https://example.com/product-image.jpg\"\n    },\n    \"buttons\": [\n      {\n        \"type\": \"URL\",\n        \"variables\": [\n          \"promo-code-2025\"\n        ]\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://lancepilot.com/api/v3/workspaces/{workspace}/contacts/number/{number}/template-messages")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"template_id\": 123,\n  \"template_data\": {\n    \"header\": {\n      \"variables\": [\n        \"Premium Member\"\n      ],\n      \"file\": \"https://example.com/product-image.jpg\"\n    },\n    \"buttons\": [\n      {\n        \"type\": \"URL\",\n        \"variables\": [\n          \"promo-code-2025\"\n        ]\n      }\n    ]\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://lancepilot.com/api/v3/workspaces/{workspace}/contacts/number/{number}/template-messages")

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  \"template_id\": 123,\n  \"template_data\": {\n    \"header\": {\n      \"variables\": [\n        \"Premium Member\"\n      ],\n      \"file\": \"https://example.com/product-image.jpg\"\n    },\n    \"buttons\": [\n      {\n        \"type\": \"URL\",\n        \"variables\": [\n          \"promo-code-2025\"\n        ]\n      }\n    ]\n  }\n}"

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

{
  "status": 201,
  "message": "Resource created successfully.",
  "data": {}
}

{
  "message": "Only template messages are allowed for this contact"
}

{
  "message": "Unauthenticated."
}

{
  "message": "Template not found"
}

{
  "message": "Invalid Number",
  "errors": {
    "body.variables": [
      "The body.variables field is required."
    ]
  }
}

{
  "message": "Failed to send message"
}