Posting a file to CodeIgniter backend - php

Question

I'm trying to post a file to my CodeIgniter backend in the simplest way possible.
I want to fire an API call from Postman like this:
And my PHP function is looking like this right now:
public function runk_image_put()
{
$image = $this->upload->data();
$id = $this->get('id');
$this->response($image, REST_Controller::HTTP_OK);
}
I'm pretty sure that:
$image = $this->upload->data();
Is not the correct way of grabbing the posted file. What is the correct way?

Answer 1

function do_upload()
{
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '100';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$config['overwrite'] = TRUE;
$config['encrypt_name'] = FALSE;
$config['remove_spaces'] = TRUE;
if ( ! is_dir($config['upload_path']) ) die("THE UPLOAD DIRECTORY DOES NOT EXIST");
$this->load->library('upload', $config);
if ( ! $this->upload->do_upload('data')) {
echo 'error';
} else {
return array('upload_data' => $this->upload->data());
}
}
and in your controller use this:
$this->data['data'] = $this->do_upload();
and make the form as form-data or if you use binary send a header of what the file is like jpeg or what and then echo the file