Using PayPal IPN - How do I choose recipient of payment? - paypal

Question

Below is the script I am using for processing credit cards. Right now, the payment goes to me based on $clientId and $clientSecret. I am needing the recipient to be variable based on a users paypal email. If I have the users PayPal email, how would I go about pulling the appropriate information to send the money to the user?
#!/usr/bin/php
<?php
# Sandbox
$host = 'https://api.sandbox.paypal.com';
$clientId = 'ATopphBpQ1BOCE3Bi5QLdXH8XjH_btoKoXXHsMNSUVe9cx_nbiB0fpglcwNE';
$clientSecret = 'EFvOWhDKf9-F9uEEHaA4LV_t373Zk-B0-h2vT6d-1BjaqsrPo_DWH74wTJ_M';
$token = '';
// function to read stdin
function read_stdin() {
$fr=fopen("php://stdin","r"); // open our file pointer to read from stdin
$input = fgets($fr,128); // read a maximum of 128 characters
$input = rtrim($input); // trim any trailing spaces.
fclose ($fr); // close the file handle
return $input; // return the text entered
}
function get_access_token($url, $postdata) {
global $clientId, $clientSecret;
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_USERPWD, $clientId . ":" . $clientSecret);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $postdata);
# curl_setopt($curl, CURLOPT_VERBOSE, TRUE);
$response = curl_exec( $curl );
if (empty($response)) {
// some kind of an error happened
die(curl_error($curl));
curl_close($curl); // close cURL handler
} else {
$info = curl_getinfo($curl);
echo "Time took: " . $info['total_time']*1000 . "ms<br>";
curl_close($curl); // close cURL handler
if($info['http_code'] != 200 && $info['http_code'] != 201 ) {
echo "Received error: " . $info['http_code']. "<br>";
echo "Raw response:".$response."<br>";
die();
}
}
// Convert the result from JSON format to a PHP array
$jsonResponse = json_decode( $response );
return $jsonResponse->access_token;
}
function make_post_call($url, $postdata) {
global $token;
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, array(
'Authorization: Bearer '.$token,
'Accept: application/json',
'Content-Type: application/json'
));
curl_setopt($curl, CURLOPT_POSTFIELDS, $postdata);
#curl_setopt($curl, CURLOPT_VERBOSE, TRUE);
$response = curl_exec( $curl );
if (empty($response)) {
// some kind of an error happened
die(curl_error($curl));
curl_close($curl); // close cURL handler
} else {
$info = curl_getinfo($curl);
echo "Time took: " . $info['total_time']*1000 . "ms<br>";
curl_close($curl); // close cURL handler
if($info['http_code'] != 200 && $info['http_code'] != 201 ) {
echo "Received error: " . $info['http_code']. "<br>";
echo "Raw response:".$response."<br>";
die();
}
}
// Convert the result from JSON format to a PHP array
$jsonResponse = json_decode($response, TRUE);
return $jsonResponse;
}
function make_get_call($url) {
global $token;
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_POST, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_HTTPHEADER, array(
'Authorization: Bearer '.$token,
'Accept: application/json',
'Content-Type: application/json'
));
#curl_setopt($curl, CURLOPT_VERBOSE, TRUE);
$response = curl_exec( $curl );
if (empty($response)) {
// some kind of an error happened
die(curl_error($curl));
curl_close($curl); // close cURL handler
} else {
$info = curl_getinfo($curl);
echo "Time took: " . $info['total_time']*1000 . "ms<br>";
curl_close($curl); // close cURL handler
if($info['http_code'] != 200 && $info['http_code'] != 201 ) {
echo "Received error: " . $info['http_code']. "<br>";
echo "Raw response:".$response."<br>";
die();
}
}
// Convert the result from JSON format to a PHP array
$jsonResponse = json_decode($response, TRUE);
return $jsonResponse;
}
echo "<br>";
echo "###########################################<br>";
echo "Obtaining OAuth2 Access Token.... <br>";
$url = $host.'/v1/oauth2/token';
$postArgs = 'grant_type=client_credentials';
$token = get_access_token($url,$postArgs);
echo "Got OAuth Token: ".$token;
echo "<br> <br>";
echo "###########################################<br>";
echo "Making a Credit Card Payment... <br>";
$url = $host.'/v1/payments/payment';
$payment = array(
'intent' => 'sale',
'payer' => array(
'payment_method' => 'credit_card',
'funding_instruments' => array ( array(
'credit_card' => array (
'number' => '5500005555555559',
'type' => 'mastercard',
'expire_month' => 12,
'expire_year' => 2018,
'cvv2' => 111,
'first_name' => 'Joe',
'last_name' => 'Shopper'
)
))
),
'transactions' => array (array(
'amount' => array(
'total' => '7.47',
'currency' => 'USD'
),
'description' => 'payment by a credit card using a test script'
))
);
echo "<b>Payer Variable Details:</b> :";
print_r($payment['payer']);
$json = json_encode($payment);
$json_resp = make_post_call($url, $json);
foreach ($json_resp['links'] as $link) {
if($link['rel'] == 'self'){
$payment_detail_url = $link['href'];
$payment_detail_method = $link['method'];
}
}
$related_resource_count = 0;
$related_resources = "";
foreach ($json_resp['transactions'] as $transaction) {
if($transaction['related_resources']) {
$related_resource_count = count($transaction['related_resources']);
foreach ($transaction['related_resources'] as $related_resource) {
if($related_resource['sale']){
$related_resources = $related_resources."sale ";
$sale = $related_resource['sale'];
foreach ($sale['links'] as $link) {
if($link['rel'] == 'self'){
$sale_detail_url = $link['href'];
$sale_detail_method = $link['method'];
}else if($link['rel'] == 'refund'){
$refund_url = $link['href'];
$refund_method = $link['method'];
}
}
} else if($related_resource['refund']){
$related_resources = $related_resources."refund";
}
}
}
}
echo "Payment Created successfully: " . $json_resp['id'] ." with state '". $json_resp['state']."'<br>";
echo "Payment related_resources:". $related_resource_count . "(". $related_resources.")";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining Payment Details... <br>";
$json_resp = make_get_call($payment_detail_url);
echo "Payment details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']. "'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining Sale details...<br>";
$json_resp = make_get_call($sale_detail_url);
echo "Sale details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Refunding a Sale... <br>";
$refund = array(
'amount' => array(
'total' => '7.47',
'currency' => 'USD'
)
);
$json = json_encode($refund);
$json_resp = make_post_call($refund_url, $json);
echo "Refund processed " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining Sale details...<br>";
$json_resp = make_get_call($sale_detail_url);
echo "Sale details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining Payment Details... <br>";
$json_resp = make_get_call($payment_detail_url);
$related_resource_count = 0;
$related_resources = "";
foreach ($json_resp['transactions'] as $transaction) {
if($transaction['related_resources']) {
$related_resource_count = count($transaction['related_resources']);
foreach ($transaction['related_resources'] as $related_resource) {
if($related_resource['sale']){
$related_resources = $related_resources."sale ";
} else if($related_resource['refund']){
$related_resources = $related_resources."refund";
}
}
}
}
echo "Payment details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']. "' <br>";
echo "Payment related_resources:". $related_resource_count . "(". $related_resources.")";
echo "<br> <br>";
echo "###########################################<br>";
echo "Saving a Credit Card in vault... <br>";
$url = $host.'/v1/vault/credit-card';
$creditcard = array(
'payer_id' => 'testuser#yahoo.com',
'number' => '4417119669820331',
'type' => 'visa',
'expire_month' => 11,
'expire_year' => 2018,
'first_name' => 'John',
'last_name' => 'Doe'
);
$json = json_encode($creditcard);
$json_resp = make_post_call($url, $json);
$credit_card_id = $json_resp['id'];
echo "Credit Card saved ".$credit_card_id." with state '".$json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Making a Payment with saved credit card... <br>";
$url = $host.'/v1/payments/payment';
$payment = array(
'intent' => 'sale',
'payer' => array(
'payment_method' => 'credit_card',
'funding_instruments' => array ( array(
'credit_card_token' => array (
'credit_card_id' => $credit_card_id,
'payer_id' => 'testuser#yahoo.com'
)
))
),
'transactions' => array (array(
'amount' => array(
'total' => '7.47',
'currency' => 'USD'
),
'description' => 'payment using a saved card'
))
);
$json = json_encode($payment);
$json_resp = make_post_call($url, $json);
echo "Payment Created successfully: " . $json_resp['id'] ." with state '". $json_resp['state']."'<br>";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining all Payments (list) ... <br>";
$payment_list_url = $host.'/v1/payments/payment?start_id=PAY-1JJ14633E59990232KE6QU3I';
$json_resp = make_get_call($payment_list_url);
echo "Number of Payment resources returned: " . count($json_resp['payments']);
$counter = 0;
foreach ($json_resp['payments'] as $payment) {
echo "<br>" . $counter++ . ". " . $payment['id'];
}
echo "<br>Next Payment ID: ". $json_resp['next_id'];
echo "<br>Obtaining subset (2-4) of the Payments ... <br>";
$payment_list_url = $host.'/v1/payments/payment?start_index=1&count=3';
$json_resp = make_get_call($payment_list_url);
echo "Number of Payment resources returned: " . count($json_resp['payments']);
$counter = 0;
foreach ($json_resp['payments'] as $payment) {
echo "<br>" . $counter++ . ". " . $payment['id'];
}
echo "<br>Next Payment ID: ". $json_resp['next_id'];
echo "<br>Obtaining the next 10 starting from the previous next_id ... <br>";
$payment_list_url = $host.'/v1/payments/payment?start_id='.$json_resp['next_id'];
$json_resp = make_get_call($payment_list_url);
echo "Number of Payment resources returned: " . count($json_resp['payments']);
$counter = 0;
foreach ($json_resp['payments'] as $payment) {
echo "<br>" . $counter++ . ". " . $payment['id'];
}
echo "<br> <br>";
echo "###########################################<br>";
echo "Making a Credit Card Authorization... <br>";
$url = $host.'/v1/payments/payment';
$payment = array(
'intent' => 'authorize',
'payer' => array(
'payment_method' => 'credit_card',
'funding_instruments' => array ( array(
'credit_card' => array (
'number' => '5500005555555559',
'type' => 'mastercard',
'expire_month' => 12,
'expire_year' => 2018,
'cvv2' => 111,
'first_name' => 'Joe',
'last_name' => 'Shopper'
)
))
),
'transactions' => array (array(
'amount' => array(
'total' => '7.47',
'currency' => 'USD'
),
'description' => 'payment by a credit card using a test script'
))
);
$json = json_encode($payment);
$json_resp = make_post_call($url, $json);
foreach ($json_resp['links'] as $link) {
if($link['rel'] == 'self'){
$payment_detail_url = $link['href'];
$payment_detail_method = $link['method'];
}
}
$related_resource_count = 0;
$related_resources = "";
foreach ($json_resp['transactions'] as $transaction) {
if($transaction['related_resources']) {
$related_resource_count = count($transaction['related_resources']);
foreach ($transaction['related_resources'] as $related_resource) {
if($related_resource['authorization']){
$related_resources = $related_resources."authorization ";
$authorization = $related_resource['authorization'];
foreach ($authorization['links'] as $link) {
if($link['rel'] == 'self'){
$auth_detail_url = $link['href'];
$auth_detail_method = $link['method'];
}else if($link['rel'] == 'refund'){
$refund_url = $link['href'];
$refund_method = $link['method'];
}else if($link['rel'] == 'void'){
$void_url = $link['href'];
$void_method = $link['method'];
}else if($link['rel'] == 'capture'){
$capture_url = $link['href'];
$capture_method = $link['method'];
}
}
} else if($related_resource['refund']){
$related_resources = $related_resources."refund";
}
}
}
}
echo "Payment Created successfully: " . $json_resp['id'] ." with state '". $json_resp['state']."'<br>";
echo "Payment related_resources:". $related_resource_count . "(". $related_resources.")";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining Payment Details... <br>";
$json_resp = make_get_call($payment_detail_url);
echo "Payment details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']. "'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining Authorization details...<br>";
$json_resp = make_get_call($auth_detail_url);
echo "Authorization details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Capturing Authorization ...<br>";
$capture = array(
'amount' => array(
'total' => '5.47',
'currency' => 'USD'
)
);
$json = json_encode($capture);
$json_resp = make_post_call($capture_url, $json);
echo "Capture processed " . $json_resp['id'] ." with state '". $json_resp['state']."'";
foreach ($json_resp['links'] as $link) {
if($link['rel'] == 'self'){
$capture_detail_url = $link['href'];
$capture_detail_method = $link['method'];
}else if($link['rel'] == 'refund'){
$refund_url = $link['href'];
$refund_method = $link['method'];
}
}
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining Authorization details...<br>";
$json_resp = make_get_call($auth_detail_url);
echo "Authorization details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining Capture details...<br>";
$json_resp = make_get_call($capture_detail_url);
echo "Capture details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Refunding a Capture... <br>";
$refund = array(
'amount' => array(
'total' => '2.47',
'currency' => 'USD'
)
);
$json = json_encode($refund);
$json_resp = make_post_call($refund_url, $json);
echo "Refund processed " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining Capture details...<br>";
$json_resp = make_get_call($capture_detail_url);
echo "Capture details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Voiding Authorization ...<br>";
$void = array();
$json = json_encode($void);
$json_resp = make_post_call($void_url, $json);
echo "Void processed " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining Authorization details...<br>";
$json_resp = make_get_call($auth_detail_url);
echo "Authorization details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
echo "###########################################<br>";
echo "Obtaining parent Payment Details for the Authorization ... <br>";
$json_resp = make_get_call($payment_detail_url);
$related_resource_count = 0;
$related_resources = "";
foreach ($json_resp['transactions'] as $transaction) {
if($transaction['related_resources']) {
$related_resource_count = count($transaction['related_resources']);
foreach ($transaction['related_resources'] as $related_resource) {
if($related_resource['authorization']){
$related_resources = $related_resources."authorization ";
} else if($related_resource['capture']){
$related_resources = $related_resources."capture ";
} else if($related_resource['refund']){
$related_resources = $related_resources."refund ";
}
}
}
}
echo "Payment details obtained for: " . $json_resp['id'] ." with state '". $json_resp['state']. "' <br>";
echo "Payment related_resources:". $related_resource_count . "(". $related_resources.")";
echo "<br> <br>";
die;
//END CREDIT CARD FUNCTIONS
//Paypal Payment
echo "###########################################<br>";
echo "Initiating a Payment with PayPal Account... <br>";
$url = $host.'/v1/payments/payment';
$payment = array(
'intent' => 'sale',
'payer' => array(
'payment_method' => 'paypal'
),
'transactions' => array (array(
'amount' => array(
'total' => '7.47',
'currency' => 'USD'
),
'description' => 'payment using a PayPal account'
)),
'redirect_urls' => array (
'return_url' => 'http://project.aimlessmedia.com/001/return.php?cancelled=0&returned=1',
'cancel_url' => 'http://project.aimlessmedia.com/001/return.php?cancelled=1&returned=1'
)
);
$json = json_encode($payment);
$json_resp = make_post_call($url, $json);
foreach ($json_resp['links'] as $link) {
if($link['rel'] == 'execute'){
$payment_execute_url = $link['href'];
$payment_execute_method = $link['method'];
} else if($link['rel'] == 'approval_url'){
$payment_approval_url = $link['href'];
$payment_approval_method = $link['method'];
}
}
echo "Payment Created successfully: " . $json_resp['id'] ." with state '". $json_resp['state']."'<br><br>";
echo "Please goto ".$payment_approval_url." in your browser and approve the payment with a PayPal Account.<br>";
echo "Enter PayerId from the return url to continue:";
$payerId = read_stdin();
echo "<br> <br>";
echo "###########################################<br>";
echo "Executing the PayPal Payment for PayerId (".$payerId.")... <br>";
$payment_execute = array(
'payer_id' => $payerId
);
$json = json_encode($payment_execute);
$json_resp = make_post_call($payment_execute_url, $json);
echo "Payment Execute processed " . $json_resp['id'] ." with state '". $json_resp['state']."'";
echo "<br> <br>";
?>

Answer 1

I believe credit card payments to a recipient's email is not supported as of yet.
Check here: https://developer.paypal.com/webapps/developer/docs/api/#errors (scroll down to "Validation Issues")
Specification of payee by email is not currently supported
You can’t currently use an email to indicate the payee.