Cognitive Services - Error Create FaceList and PersonGroup AZURE - php

Question

Could you help me I'm studying about cognitive services using the azure service, but I'm having some mistakes using the forncecido model in the documentation
<?php
// This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)
require_once 'HTTP/Request2.php';
// Replace <Subscription Key> with a valid subscription key.
$ocpApimSubscriptionKey = '98471c5c832e466688890f6c86f6c88d';
$request = new Http_Request2('https://brazilsouth.api.cognitive.microsoft.com/face/v1.0/facelists/{faceListId}');
$url = $request->getUrl();
$headers = array(
// Request headers
'Content-Type' => 'application/json',
'Ocp-Apim-Subscription-Key' => $ocpApimSubscriptionKey ,
);
$request->setHeader($headers);
$parameters = array(
// Request parameters
'faceListId' => 'sahara'
);
$url->setQueryVariables($parameters);
$request->setMethod(HTTP_Request2::METHOD_PUT);
// Request body
$request->setBody("{body}");
try
{
$response = $request->send();
echo $response->getBody();
}
catch (HttpException $ex)
{
echo $ex;
}
?>
I run this script in php and it gives me the following error
{"error":{"code":"BadArgument","message":"Request body is invalid."}}
could you tell me what I'm doing wrong, please

Answer 1

According to the FaceList - Create API, the body format is
{
"name": "sample_list",
"userData": "User-provided data attached to the face list."
}
We need to send body with following way, then it should work.
// Request body
$request->setBody('{"name":"facelistName","userData":"it is optional"}'); //replace it with your name and userData
If want to reference 'HTTP/Request2.php';, we need to install http_request2
pear install http_request2
How to install the PEAR package manager, please refer to this link.
Demo code:
<?php
// This sample uses the Apache HTTP client from HTTP Components (http://hc.apache.org/httpcomponents-client-ga/)
require_once 'HTTP/Request2.php';
$request = new Http_Request2('https://xxx.api.cognitive.microsoft.com/face/v1.0/facelists/{faceListId}');
$url = $request->getUrl();
$headers = array(
// Request headers
'Content-Type' => 'application/json',
'Ocp-Apim-Subscription-Key' => 'xxxxxxxxxx', //replace it with your key
);
$request->setHeader($headers);
$parameters = array(
'faceListId' => 'facelistId'
);
$url->setQueryVariables($parameters);
$request->setMethod(HTTP_Request2::METHOD_PUT);
// Request body
$request->setBody('{"name":"facelistName","userData":"it is optional"}');//replace it with your name and userData
try
{
$response = $request->send();
echo $response->getBody();
}
catch (HttpException $ex)
{
echo $ex;
}
?>