how to integrate Assently api for e-signature transaction in PHP

create this class inside assently folder

use Assently\AssentlyCase;use Exception;class  CustomAssentlyCase extends AssentlyCase {    public function createFromTemplate($data)    {        $default = [            'newCaseId' => '5a0e0869-'.rand(1111, 9999).'-4b79-'.rand(1111, 9999).'-466ea5cca5ce'        ];        $json = array_merge($default, $data);        try{            $response = $this->client->post($this->url('createcasefromtemplate'), [                'auth' => $this->assently->auth(),                'json' => $json            ]);        }catch(Exception $e){            print_r($e->getMessage());        }        return $response;    }}

Use

define('ASSENTLY_DEBUG', true);define('ASSENTLY_KEY', 'key');define('ASSENTLY_SECRET', 'secret-generated');include_once('assently/Assently.php');include_once('assently/CustomAssentlyCase.php');$assently = new Assently();$assently->authenticate(ASSENTLY_KEY, ASSENTLY_SECRET);$data = array(    'templateId' => '0e004e2b-b192-4ce2-8f47-d7a4576d7df6',    'newCaseId' => '5a0e0869-'.rand(1111, 9999).'-4b79-'.rand(1111, 9999).'-466ea5cca5ce',    'agentUsername' => 'agentUsername' // PUT your agent username here it is required);$customAssentlyCase = new CustomAssentlyCase($assently);$result = $customAssentlyCase->createFromTemplate($data);print_r($result);

Try this, though not tested but should work. Good luck.