I am sending this as a test to a test webserver, but the response although its a 201 which means it got it, it does not show the posted data I want to send:
<?php
$url = "https://jsonplaceholder.typicode.com/posts";
$client = \Drupal::httpClient();
$post_data = array('color' => 'red');
$response = $client->request('POST', $url, [
'form_params' => $post_data,
'verify' => false
]);
$body = $response->getBody();
dsm($body);
?>
Is the format of the request I made incorrect?
I can see that it is not getting the post data because when I do a dsm of the response body, it isn't there.
This worked for me, looks like I needed to add the headers:
$url="https://jsonplaceholder.typicode.com/posts";
$client = \Drupal::httpClient();
$post_data = $form_state->cleanValues()->getValues();
$response = $client->request('POST', $url, [
'headers' => ['Content-Type' => 'application/x-www-form-urlencoded'],
'form_params' => $post_data,
'verify'=>false,
]);
$body = $response->getBody()->getContents();
$status = $response->getStatusCode();
dsm($body);
dsm($status);