Sending Guzzle request to itemize api - http

Question

The situation:
I need to send the request to the api to update the account info.
The API docs say I need to do send a PUT request to the API.
I trying to do this in Laravel 5.6, although I don't think this matters.
What I have so far:
A working constructor for the Guzzle client;
A working function to retrieve account info.
What is not working:
Upon submitting the request I get a Guzzle exception
Client error: \`PUT https://sandbox.proapi.itemize.com/api/enterprise/v1/accounts/<my account id>\` resulted in a \`400 Bad Request\` response: IOException:
This is the code I have so far:
<?php
namespace App\Http\Controllers;
use GuzzleHttp\Client;
use GuzzleHttp\Exception\GuzzleException;
class ApiController extends Controller {
private $apiKey;
private $uri;
private $client;
public function __construct() {
$this->apiKey = 'my api key';
$this->uri = 'https://sandbox.proapi.itemize.com/api/enterprise/v1/accounts/my account id';
$this->client = new Client([
'base_uri' => $this->uri,
'auth' => [null, $this->apiKey]]);
}
public function accountInfo() {
$response = $this->client->request('GET','');
echo $response->getBody()->getContents();
}
public function updateAccountInfo() {
$response = $this->client->request('PUT','',[
'headers' => [
'Content-Type' => 'application/json',
],
'body' => '{"markets":"UK"}'
]);
echo $response->getBody()->getContents();
}
}
?>

Answer 1

400 Bad Request means: request sent by the client due to invalid syntax.
According itemize api documentation "markets" should be passed as an array of strings. And you can also use json format.
Try this:
public function updateAccountInfo() {
$response = $this->client->request('PUT', '', [
'json' => ["markets" => ["UK"]],
]);
echo $response->getBody()->getContents();
}