Publish Client to chronicle

publish-chronicle.php

<?php

$root = \dirname(__DIR__);
/** @psalm-suppress UnresolvableInclude */
require_once $root . '/cli-autoload.php';

use GuzzleHttp\Client;
use ParagonIE\Sapient\Sapient;
use ParagonIE\Chronicle\Chronicle;
use ParagonIE\ConstantTime\Base64UrlSafe;
use ParagonIE\Sapient\Adapter\Guzzle as GuzzleAdapter;
use ParagonIE\Sapient\CryptographyKeys\SigningPublicKey;
use ParagonIE\Sapient\CryptographyKeys\SigningSecretKey;
use ParagonIE\Sapient\Exception\InvalidMessageException;

$http = new Client([
    'base_uri' => 'http://localhost:8080'
]);
$sapient = new Sapient(new GuzzleAdapter($http));

// Keys
$clientSigningKey = new SigningSecretKey(
    Base64UrlSafe::decode(
        "Rjeuq_q-ZeiiLmq-vDaqsVUagCs8KFrRpuPCzQJXv_Yp2Qe9fznnHZKamsriq443ajWfg2InfSGZBV99x9GKpA=="
    )
);
$serverPublicKey = new SigningPublicKey(
    Base64UrlSafe::decode(
        "KdkHvX855x2SmprK4quON2o1n4NiJ30hmQVffcfRiqQ="
    )
);

// We use an array to define our message
$myMessage = [
    'date' => (new DateTime)->format(DateTime::ATOM),
    'body' => [
        uniqid('test_') => 'hello ' . microtime(1) . ' world!'        
    ]
];

// Create the signed request:
$request = $sapient->createSignedJsonRequest(
    'POST',
    '/chronicle/publish',
    $myMessage,
    $clientSigningKey,
    [
        Chronicle::CLIENT_IDENTIFIER_HEADER => 'mvCPXgNb81PyucAiOGXN7EeuFepwfZPP'
    ]
);

print_r($request);

$response = $http->send($request);

print_r($response);

try {
    /** @var array $verifiedResponse */
    $verifiedResponse = $sapient->decodeSignedJsonResponse(
        $response,
        $serverPublicKey
    );

    echo "DONE";
} catch (InvalidMessageException $ex) {
    // echo $ex->getMessage();
    \http_response_code(500);
    exit;
}