$this->load->library('elastic');

// index a document
$params = array();
$params['body']  = array('testField' => 'abc');
$params['index'] = 'my_index';
$params['type']  = 'my_type';
$params['id']    = 'my_id';
$ret = $this->elastic->index($params);

// get a document
$getParams = array();
$getParams['index'] = 'my_index';
$getParams['type']  = 'my_type';
$getParams['id']    = 'my_id';
$retDoc = $this->elastic->get($getParams);

// search for a document
$searchParams['index'] = 'my_index';
$searchParams['type']  = 'my_type';
$searchParams['body']['query']['match']['testField'] = 'abc';
$retDoc = $this->elastic->search($searchParams);

// delete a document
$deleteParams = array();
$deleteParams['index'] = 'my_index';
$deleteParams['type'] = 'my_type';
$deleteParams['id'] = 'my_id';
$retDelete = $this->elastic->delete($deleteParams);