phpfhir/classes/src/oeFHIRHttpClient.php

   1 <?php
   2 /**
   3  * oeFHIRHttpClient class
   4  *
   5  * @package   OpenEMR
   6  * @link      http://www.open-emr.org
   7  * @author    Jerry Padgett <sjpadgett@gmail.com>
   8  * @copyright Copyright (c) 2018 Jerry Padgett <sjpadgett@gmail.com>
   9  * @license   https://www.gnu.org/licenses/agpl-3.0.en.html GNU Affero General Public License 3
  10  */
  11
  12 namespace oeFHIR;
  13
  14 use GuzzleHttp\Client;
  15
  16 class oeFHIRHttpClient
  17 {
  18     private $client;
  19     private $settings = [];
  20
  21 // @TODO Create exceptions catch for recovery and display.
  22
  23     public function setSettings()
  24     {
  25         //$url = 'http://localhost:8076/dstu3/open/'; //Smart on FHIR (multi-tenant stu3, port 8075 is for dstu2)
  26         //$url = 'http://localhost:8080/hapi-fhir-jpaserver-example/baseStu3/';
  27         $url = trim($GLOBALS['fhir_base_url']);
  28         $url = substr($url, -1) == '/' ? $url : $url . '/';
  29         $this->settings = array(
  30             'base_uri' => $url, // http/https ssl cert verify is currently off
  31             'verify' => false, // @TODO force/add client cert check and/or endpoint cert verify
  32             'http_errors' => false);
  33     }
  34
  35     public function __construct()
  36     {
  37         $this->setSettings();
  38         $this->client = new Client($this->settings);
  39     }
  40
  41     public function sendResource($type = 'Patient', $id = '', $data = '')
  42     {
  43         $uri = $type . '/' . $id;
  44         $returned = $this->client->request('PUT', $uri, ['body' => $data]);
  45         $head = '<strong>Transaction Status: ' . $returned->getStatusCode() . ' ' . $returned->getReasonPhrase() . '</strong><br/>';
  46         foreach ($returned->getHeaders() as $name => $values) {
  47             $head .= $name . ': ' . implode(', ', $values) . "<br/>";
  48         }
  49
  50         return $head;
  51     }
  52
  53     public function requestResource($type = 'Patient', $id = '', $action = '')
  54     {
  55         $actionIs = $action == 'history' ? '/_history' : ''; // no action = read latest version
  56         $uri = $type . '/' . $id . $actionIs . '?_format=json';
  57         $returned = $this->client->request('GET', $uri);
  58         $body = $returned->getBody()->getContents();
  59
  60         return $body;
  61     }
  62
  63     // @todo for now search for type by patient
  64     public function searchResource($type = 'Patient', $id = '', $search = '')
  65     {
  66         $uri = $type . '?patient=' . $id . '&_format=json&_pretty=true';
  67         $returned = $this->client->request('GET', $uri);
  68         $body = $returned->getBody()->getContents();
  69
  70         return $body;
  71     }
  72 }