JsonException when logging is enabled

[pcastellazzi]

I am trying to log HTTP requests made by the client. To do it, i enabled the logging middleware on a custom Guzzle instance and pass it to \Typesense\Client.

I have to issues with this approach, first it triggers a JsonException, and secondly, it executes the requests 4 extra times. The JsonException is triggered because the response is read with $response->getBody()->getContents(). It should be (string) $response->getBody(). The first reads the remaining of stream, which when a logger (or another middleware) is present can be empty.

The request multiplication i have no clue. The following example triggers both issues.

<?php

declare(strict_types=1);

require __DIR__.'/vendor/autoload.php';

use Dotenv\Dotenv;
use GuzzleHttp\Client as GuzzleClient;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\MessageFormatter;
use GuzzleHttp\Middleware;
use Monolog\Handler\StreamHandler;
use Monolog\Level;
use Monolog\Logger;
use Typesense\Client as TypesenseClient;

function getGuzzleClient(): GuzzleClient
{
    $logger = new Logger('app');
    $logger->pushHandler(new StreamHandler('php://stdout', Level::Debug));

    $format = ['{method} {uri} HTTP/{version}'];
    $format[] = '{res_headears}';
    $format[] = '{res_body}';
    $format = implode(separator: "\n", array: $format);

    $handler = HandlerStack::create();
    $handler->unshift(Middleware::log($logger, new MessageFormatter($format)));

    return new GuzzleClient(['handler' => $handler]);
}

$dotenv = Dotenv::createImmutable(__DIR__);
$dotenv->safeLoad();

$config = [
    'client' => getGuzzleClient(),
    'api_key' => $_SERVER['TYPESENSE_API_KEY'],
    'nodes' => [[
        'host' => $_SERVER['TYPESENSE_HOST'],
        'port' => $_SERVER['TYPESENSE_PORT'],
        'protocol' => $_SERVER['TYPESENSE_PROTOCOL'],
    ]],
];

$client = new TypesenseClient($config);
var_dump($client->health->retrieve());

$ composer show | grep -iE '(typesense|guzzle)' | cut -c1-41
guzzlehttp/guzzle                  7.10.0
guzzlehttp/promises                2.3.0
guzzlehttp/psr7                    2.9.0
guzzlehttp/uri-template            1.0.5
typesense/typesense-php            6.0.0

$ php --version
PHP 8.4.16 (cli) (built: Dec 18 2025 21:19:25) (NTS)
Copyright (c) The PHP Group
Built by Debian
Zend Engine v4.4.16, Copyright (c) Zend Technologies
    with Zend OPcache v8.4.16, Copyright (c), by Zend Technologies

$ php bug.php
[2026-04-23T03:07:00.310676+00:00] app.INFO: GET http://127.0.0.1:8108/health HTTP/1.1  {"ok":true} [] []
[2026-04-23T03:07:01.311832+00:00] app.INFO: GET http://127.0.0.1:8108/health HTTP/1.1  {"ok":true} [] []
[2026-04-23T03:07:02.312538+00:00] app.INFO: GET http://127.0.0.1:8108/health HTTP/1.1  {"ok":true} [] []
[2026-04-23T03:07:03.313310+00:00] app.INFO: GET http://127.0.0.1:8108/health HTTP/1.1  {"ok":true} [] []
PHP Fatal error:  Uncaught JsonException: Syntax error in /app/source/vendor/typesense/typesense-php/src/ApiCall.php:273
Stack trace:
#0 /app/source/vendor/typesense/typesense-php/src/ApiCall.php(273): json_decode()
#1 /app/source/vendor/typesense/typesense-php/src/ApiCall.php(108): Typesense\ApiCall->makeRequest()
#2 /app/source/vendor/typesense/typesense-php/src/Health.php(39): Typesense\ApiCall->get()
#3 /app/source/bug.php(47): Typesense\Health->retrieve()
#4 {main}
  thrown in /app/source/vendor/typesense/typesense-php/src/ApiCall.php on line 273