API Quiz Creation Issue - "Provided JSON is invalid or does not match the expected format."

Robert.V.8490

I am using PHP with Guzzle, and I can't seem to crack through this problem. I have tried a number of config options and how the data is formatted with zero luck. Does anyone have a PHP/Guzzle example when posting data to the Brightspace API? Does anyone know why I am not getting more description error messages back? Any help would be greatly appreciated. Thanks.

Sreelakshmi.N.546

Hi Robert,

Thank you for reaching out to us through the community.

If you are looking for the JSON format for posting data to the Brightspace API using PHP, can you check if format below helps

<?php
require 'vendor/autoload.php';

use GuzzleHttp\Client;

$accessToken = 'YOUR_ACCESS_TOKEN';
$orgUnitId = 12345; // Course ID
$baseUrl = 'https://yourinstitution.brightspace.com';

$client = new Client();

$quizData = [
"Name" => "Sample API Quiz",
"IsActive" => true,
"AutoExportToGrades" => false,
"AutoSetGraded" => true,
"AllowHints" => true,
"DisableRightClick" => false,
"PreventMovingBackwards" => false,
"Shuffle" => true,
"QuestionsPerPage" => 5,
"PagingType" => 1,
"DisplayResults" => [
"DisplayAttemptScore" => true,
"DisplayAttemptGrade" => true,
"DisplayAttemptQuestions" => 2,
"DisplayAttemptAnswers" => true,
"DisplayAttemptFeedback" => true,
"DisplayAttemptHint" => true
],
"SubmissionTimeLimit" => [
"IsEnforced" => false,
"TimeLimit" => 0,
"ShowClock" => false
],
"LateSubmissionInfo" => [
"LateSubmissionOption" => 1
],
"AttemptsAllowed" => 1,
"AttemptsAllowedType" => 1,
"RetakeIncorrectOnly" => false,
"Description" => [
"Text" => "<p>This quiz was created via the Brightspace API.</p>",
"Html" => "<p>This quiz was created via the Brightspace API.</p>",
"IsHidden" => false
]
];

try {
$response = $client->request('POST', "$baseUrl/d2l/api/le/1.71/$orgUnitId/quizzes/", [
'headers' => [
'Authorization' => 'Bearer ' . $accessToken,
'Accept' => 'application/json',
'Content-Type' => 'application/json'
],
'json' => $quizData
]);

$data = json_decode($response->getBody(), true);
echo "✅ Quiz created successfully:\n";
print_r($data);

} catch (\GuzzleHttp\Exception\RequestException $e) {
echo "❌ Error creating quiz: " . $e->getMessage() . "\n";
if ($e->hasResponse()) {
$error = json_decode($e->getResponse()->getBody(), true);
print_r($error);
}
}

Thanks,

Sreelakshmi