create_transmission_with_template.php

<?php

namespace Examples\Transmissions;

require dirname(__FILE__).'/../bootstrap.php';

use SparkPost\SparkPost;
use GuzzleHttp\Client;
use Http\Adapter\Guzzle6\Client as GuzzleAdapter;

$httpClient = new GuzzleAdapter(new Client());

$sparky = new SparkPost($httpClient, ["key" => "YOUR_API_KEY"]);

$promise = $sparky->transmissions->post([
    'content' => ['template_id' => 'TEMPLATE_ID'],
    'substitution_data' => ['name' => 'YOUR_FIRST_NAME'],
    'recipients' => [
        [
            'address' => [
                'name' => 'YOUR_NAME',
                'email' => 'YOUR_EMAIL',
            ],
        ],
    ],
]);

try {
    $response = $promise->wait();
    echo $response->getStatusCode()."\n";
    print_r($response->getBody())."\n";
} catch (\Exception $e) {
    echo $e->getCode()."\n";
    echo $e->getMessage()."\n";
}