What is issue in my code Sandbox paypal future payment - php

Question

I have alredy enable future payments permission in my app and using developer dashboard.but not working yet please find error
http://developer.paypal.com/ and log in
https://developer.paypal.com/developer/accountStatus there you can see what permits you have.
$data = array(
"intent" => "authorize",
"payer" => array(
"payment_method" => "paypal"
),
"transactions" => array(
array("amount" => array(
"currency" => "USD",
"total" => "1.88"
),
"description" => "future of sauces")
));
$data_string = json_encode($data);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://api.sandbox.paypal.com/v1/payments/payment");
$headers = array(
'Content-Type: application/json',
'PayPal-Client-Metadata-Id: d6743cbb53ea4470a53bfe458f0cb885',
'Authorization: Bearer A103.B7d5318JDS6NA1zGh02avjCx16oxnBPadUat5z9SlGVGEiOhoAeMuqyz0anGSICS.FAkzECypTS1IXfemHcpVa5yyrGu',
);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
//curl_setopt($ch, CURLINFO_HEADER_OUT, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
$result = curl_exec($ch);
$information = curl_getinfo($ch);
curl_close($ch);
print_r($information);
die;
Out put here
{"name":"PERMISSION_DENIED","message":"No permission for the requested operation","information_link":"https://developer.paypal.com/docs/api/#PERMISSION_DENIED","debug_id":"5b39efd4cf370"}Array
(
[url] => https://api.sandbox.paypal.com/v1/payments/payment
[content_type] => application/json
[http_code] => 403
[header_size] => 592

Answer 1

I made a Paypal Module, hope this code would help you.
$result_json = json_decode($result);
/* Check if authentication is valid */
if (isset($result_json->access_token))
{
$enc_data = json_encode($data);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://api.sandbox.paypal.com/v1/payments/payment');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, !in_array($_SERVER['REMOTE_ADDR'], array('127.0.0.1', '::1')));
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $enc_data);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Content-Type: application/json',
'Authorization: Bearer '.$result_json->access_token,
'PayPal-Client-Metadata-Id: ************'
));
$result = curl_exec($ch);
$json_result = json_decode($result);
curl_close($ch);
}
json_encode($data) there are additional information that may not be useful for the transaction you might trying to do but it is an example.
{
"intent": "sale",
"payer": {
"payment_method": "credit_card",
"payer_info": {
"email": "...",
"shipping_address": {
[...]
}
},
"funding_instruments": [
{
"credit_card": {
[...]
}
}
}
]
},
"transactions": [
{
"amount": {
"total": 32.91,
"currency": "USD"
},
"item_list": {
"items": [
{
"quantity": 1,
"name": "Product Name",
"price": 16.51,
"currency": "USD"
},
{
"quantity": 1,
"name": "Product Name 2",
"price": "16.40",
"currency": "USD"
},
{
"quantity": 1,
"name": "Shipping",
"price": 0,
"currency": "USD"
}
],
"shipping_address": {
[...]
}
}
}
]
}

Answer 2

As I didn't get any solution from anybody so I dug into my code step by step and found solution.
function paypalFuturePayment($userID,$amount)
{
$amount=number_format($amount,2);
/* paypal App truxx dev client and secret key*/
if($userID && $amount){
$userData = selectById('tbl_users','*',"id='".$userID."'");
$refresh_token = $userData['paypal_refresh_tokens'];
$Metadata_id = $userData['paypal_metadata_id'];
if($refresh_token && $Metadata_id){
if ($_SERVER['SERVER_NAME'] == 'syonserver.com') {
$clientId = "xxxxx";
$secret = "xxx";
$url1="https://api.sandbox.paypal.com/v1/oauth2/token";
$url2="https://api.sandbox.paypal.com/v1/payments/payment";
}else{
$account = 0; // 0 for sandbox ,1 for live
if ($account == 1) {
//client live
$clientId = "xxx";
$secret = xxx";
$url1 = "https://api.paypal.com/v1/oauth2/token";
$url2 = "https://api.paypal.com/v1/payments/payment";
} else {
//client sandbox
$clientId = "xxx";
$secret = "xxx";
$url1 = "https://api.sandbox.paypal.com/v1/oauth2/token";
$url2 = "https://api.sandbox.paypal.com/v1/payments/payment";
}
}
//print_r($refresh_token);die;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url1);
curl_setopt($ch, CURLOPT_HEADER, "Content-Type: application/x-www-form-urlencoded");
curl_setopt($ch, CURLOPT_USERPWD, $clientId . ":" . $secret);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "grant_type=refresh_token&refresh_token=" . $refresh_token);
$result = curl_exec($ch);
curl_close($ch);
$result=json_decode($result);
//11111111 for payment Authorize: For example, to first authorize the payment, use a request similar to this:
$access_token = $result->access_token;
$data = array(
"intent" => "authorize",
"payer" => array(
"payment_method" => "paypal"
),
"transactions" => array(
array("amount" => array(
"currency" => "USD",
"total" => $amount
),
"description" => "future of sauces")
));
$data_string = json_encode($data);
$ch1 = curl_init();
curl_setopt($ch1, CURLOPT_URL, $url2);
$headers = array(
'Content-Type: application/json',
'PayPal-Client-Metadata-Id: '.$Metadata_id,
'Authorization: Bearer '.$access_token,
'Content-Length: ' . strlen($data_string)
);
curl_setopt($ch1, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch1, CURLOPT_POST, true);
curl_setopt($ch1, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch1, CURLOPT_POSTFIELDS, $data_string);
$result1 = curl_exec($ch1);
curl_close($ch1);
$result1=json_decode($result1);
$message = $result1->message;
if($result1->state=='approved'){
$access_id= $result1->transactions[0]->related_resources[0]->authorization->id;
}else{
if(empty($message)){
$message ='Authorization error, Please try again.';
}
return array('response' => '', 'success' => '0','message'=>$message);
}
// print_r($result1);die;
//2222222 capture the payment:
$data = array("amount" => array(
"currency" => "USD",
"total" => $amount
),
"is_final_capture" => "true"
);
$data_string = json_encode($data);
$ch2 = curl_init();
if ($_SERVER['SERVER_NAME'] == 'syonserver.com') {
curl_setopt($ch2, CURLOPT_URL, "https://api.sandbox.paypal.com/v1/payments/authorization/$access_id/capture");
}else {
$account = 0; // 0 for sandbox ,1 for live
if ($account == 1) {
//client live
curl_setopt($ch2, CURLOPT_URL, "https://api.paypal.com/v1/payments/authorization/$access_id/capture");
}else{
curl_setopt($ch2, CURLOPT_URL, "https://api.sandbox.paypal.com/v1/payments/authorization/$access_id/capture");
}
}
$headers = array(
'Content-Type: application/json',
'Authorization: Bearer '.$access_token,
'Content-Length: ' . strlen($data_string)
);
curl_setopt($ch2, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch2, CURLOPT_POST, true);
curl_setopt($ch2, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch2, CURLOPT_POSTFIELDS, $data_string);
$response = curl_exec($ch2);
curl_close($ch2);
$response_a = json_decode($response, true);
$state = $response_a['state'];
$message = $response_a['message'];
if(!empty($response_a)){
if($state=='completed') {
return array('response' => $response_a, 'success' => '1','message'=>'Data received');
}else{
if(empty($message)){
$message ='Payment authorization error, Please try again.';
}
return array('response' => '', 'success' => '0','message'=>$message);
}
}
else{
return array('response' => '','success'=>'0','message'=>'Response nil');
}
}
else
{
return array('response' => '', 'success' => '0','message'=>'Authorization code not available.');
}
}else{
return array('response' => '', 'success' => '0','message'=>'Unauthorize request.');
}
}