developed by experts, but i wanted a simple REST client using Codeigniter, so thought of coding my own.
Following is the code for REST client library in codeIgniter, that suits simple needs.
class Rest_Lib {
private $useCurl;
private $userAgent = "Rest";
/*
* constructor function
*/
function Rest_Lib() {
//check if curl function exists
if(function_exists('curl_init')) {
$this->useCurl = TRUE;
}
else {
$this->useCurl = FALSE;
}
}
/*
* GET method
* @param string $url : this is the service url
* @param array $arr: this is the key value
* @return string : resulting response of GET method
*/
public function get($url, $arr) {
$str = '?';
if(is_array($arr)) {
foreach($arr as $key => $value) {
$str .= urlencode($key) . '=' . urlencode($value) . '&';
}
}
else {
$str .= $arr;
}
$url .= $str;
if($this->useCurl) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPGET, TRUE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$response = curl_exec($ch);
curl_close($ch);
}
else {
$options = array(
'http' => array(
'method' => 'GET',
'header' => 'User-Agent:' . $this->userAgent . '\r\n'
)
);
//create and return stream context with options
$streamContext = stream_context_create($options);
$fh = file_open($url, 'r', FALSE, $streamContext);
$response = fpassthru($fh);
fclose($fh);
}
return $response;
}
/*
* POST method
* @param string: $url: service url
* @param string $postData: request data
* @return response
*/
public function post($url, $postData) {
if($this->useCurl) {
$curlHeaders = array(
'Content-Type: application/x-www-form-urlencoded'
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADER, $curlHeaders);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_USERAGENT, $this->userAgent);
$response = curl_exec($ch);
curl_close($ch);
}
else {
$options = array(
'http' => array(
'method' => 'POST',
'header' => 'User-Agent: ' . $this->userAgent . '\r\n',
'Content-Type: application/x-www-form-urlencoded' . '\r\n',
'Content-Length: ' . strlen($postData) . '\r\n',
'Content' => $postData
)
);
$streamContext = stream_context_create($options);
$fh = file_open($url, 'r', FALSE, $streamContext);
$response = fpassthru($fh);
fclose($fh);
}
return $response;
}
/*
* PUT method
*
*/
public function put($url, $putData) {
if($this->useCurl) {
$fh = fopen('php://memory', 'rw');
fwrite($fh, $putData);
rewind($fh);
$ch = curl_init();
curl_setopt($ch, CURLOPT_USERAGENT, $this->userAgent);
curl_setopt($ch, CURLOPT_INFILE, $fh);
curl_setopt($ch, CURLOPT_INFILESIZE, strlen($putData));
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_PUT, TRUE);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$response = curl_exec($ch);
curl_close($ch);
fclose($fh);
}
else {
$options = array(
'http' => array(
'method' => 'PUT',
'header' => 'User-Agent: ' . $this->userAgent . '\r\n',
'Content-Type: application/x-www-form-urlencoded' . '\r\n',
'Content-Length: ' . strlen($putData) . '\r\n',
'Content' => $putData
)
);
$context = stream_context_create();
$fh = file_open($url, 'r', FALSE, $context);
$response = fpassthru($fh);
fclose($fh);
}
return $response;
}
/*
* DELETE method
*/
public function delete($url, $arr) {
$str = '?';
if(is_array($arr)) {
foreach($arr as $key => $value) {
$str .= urlencode($key) . '=' . urlencode($value) . '&';
}
}
else {
$str .= $arr;
}
$url .= $str;
if($this->useCurl) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'delete');
curl_setopt($ch, CURLOPT_USERAGENT, $this->userAgent);
$response = curl_exec($ch);
curl_close($ch);
}
else {
$options = array(
'http' => array(
'method' => 'DELETE',
'header' => 'User-Agent: ' . $this->userAgent . '\r\n'
)
);
$context = stream_context_create($options);
$fh = file_open($url, 'r', FALSE, $context);
$response = fpassthru($fh);
fclose($fh);
}
return TRUE;
}
}
?>
