Form submission fails with '400 Bad Request' about hubspot-php

[solomondg1]

It looks like it's using an undocumented endpoint. Coming from ryanwinchester/hubspot-php here is what I changed in the forms()->submit() function:

public function submit($portal_id, $form_guid, array $form)
{
    $endpoint = "https://api.hsforms.com/submissions/v3/integration/submit/{$portal_id}/{$form_guid}";

    $fields = [];
    $json = [];
    foreach($form as $key=>$val)
    {
        if($key == "hs_context")
            $json['context'] = json_decode($val);
        else
            $fields[] = ['objectTypeId' => '0-1', 'name'=>$key, 'value'=>$val];
    }
    $json['fields'] = $fields;

    return $this->client->request('post', $endpoint, ['json' => $json], null, false);
}

[neilf184]

I worked around it by calling the api directly without using the hubspot/hubspot-php classes.