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PayPal Java SDK Eksiksiz Örneği – Java İstemcisini Kullanarak PayPal Yetkilendirme REST API'sini Nasıl Çağırırsınız?

Yayınlanan: 2019-03-18

PayPal Geliştirici Korumalı Alanı Hesabı - Crunchify'dan Java SKD Örneği

PayPal , oradaki en iyi çevrimiçi Payment transfer hizmetlerinden biridir. Gün geçtikçe çılgın rakamlarla büyüdüğüne şüphe yok.

PayPal Java Developer APIs konusunda kişisel olarak deneyim sahibiyim ve deneyimlerimi tüm Crunchify okuyucularımla paylaşmak istiyorum.

Bu eğitimde PayPal Java SDK'nın en son sürümü olan 1.14.0 .

İşte Java Eclipse projenize eklemeniz için çok büyük bir bağımlılık.

pom.xml PayPal maven dependency
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< dependency >
< groupId > com . paypal . sdk < / groupId >
< artifactId > rest - api - sdk < / artifactId >
< version > LATEST < / version >
< / dependency >

Java projenize yukarıdaki PayPal maven bağımlılıklarını eklediğinizde, onu dizüstü bilgisayarınızda/masaüstünüzde göreceksiniz.

PayPal Java SKD Örneği - Maven Bağımlılığını İçe Aktarma

Bu eğitimin amacı

  • PayPal API'lerini kullanarak müşterinizin hesabını put hold
  • Aynı şekilde, satın alma işleminiz için hemen capture money
  • API kullanarak müşterinize refund yapabilirsiniz
  • Ayrıca, daha önce hesabınıza koyduğunuz void any hold
  • Yukarıdaki tüm işlemleri gerçekleştirebileceğiniz basit adımlar vardır ve bu eğitimde yapacağımız şey budur. Esas olarak müşterinin hesabına HOLD koyacağız.

Neye ihtiyacım var?

PayPal Hesabına ihtiyacınız var. Aşağıdaki adımları izleyin:

  1. official PayPal hesabı oluştur
  2. Bu bağlantıyı kullanarak PayPal'ın geliştirici portalına giriş yapın: https://developer.paypal.com/developer/applications
  3. Bu bağlantıyı kullanarak yeni Uygulama oluşturun: https://developer.paypal.com/developer/applications/create
  4. paypalContext oluşturmak için programımızda ihtiyaç duyduğumuz ClientID ve ClientSecret alın.

PayPal Uygulaması ClientID ve ClientSecret - Crunchify Eğitimi

ClientID ve ClientSecret'e sahip olduğunuzda, sonraki adım Java programını crunchifyCapturePayPalAPI.java yazmaya başlamaktır.

İşte bu program için tam bir mantık:

  1. Payer nesnesi oluşturun ve PaymentMethod'u ayarlayın
  2. RedirectUrls ayarlayın ve cancellURL ve returnURL'yi ayarlayın
  3. Details Ayarlayın ve Ödeme Ayrıntılarını Ekleyin
  4. Amount Ayarla
  5. Transaction Ayarla
  6. Ödeme Ayrıntılarını ekleyin ve authorize niyetini ayarlayın
  7. clientID , clientSecret ve mode ileterek APIContext oluşturun
  8. Payment nesnesi oluşturun ve ödeme kimliğini alın
  9. payerID PaymentExecution nesnesine ayarlayın
  10. Execute Payment ve Yetkilendirmeyi al

Kodu tamamlayın:

CrunchifyPayPalSDKTutorial.java
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package crunchify . com . paypal . sdk ;
 
import java . util . ArrayList ;
import java . util . List ;
 
import com . paypal . api . payments . Amount ;
import com . paypal . api . payments . Authorization ;
import com . paypal . api . payments . Details ;
import com . paypal . api . payments . Links ;
import com . paypal . api . payments . Payer ;
import com . paypal . api . payments . Payment ;
import com . paypal . api . payments . PaymentExecution ;
import com . paypal . api . payments . RedirectUrls ;
import com . paypal . api . payments . Transaction ;
import com . paypal . base . rest . APIContext ;
import com . paypal . base . rest . PayPalRESTException ;
 
/**
* @author Crunchify.com
* Version: 1.1.0
*
*/
 
public class CrunchifyPayPalSDKTutorial {
private static String crunchifyID = "<!---- Add your clientID Key here ---->" ;
private static String crunchifySecret = "<!---- Add your clientSecret Key here ---->" ;
 
private static String executionMode = "sandbox" ; // sandbox or production
 
public static void main ( String args [ ] ) {
CrunchifyPayPalSDKTutorial crunchifyObj = new CrunchifyPayPalSDKTutorial ( ) ;
 
// How to capture PayPal Payment using Java SDK? doCapture() PayPal SDK call.
crunchifyObj . crunchifyCapturePayPalAPI ( ) ;
}
 
// This is simple API call which will capture a specified amount for any given
// Payer or User
public void crunchifyCapturePayPalAPI ( ) {
 
/*
* Flow would look like this:
* 1. Create Payer object and set PaymentMethod
* 2. Set RedirectUrls and set cancelURL and returnURL
* 3. Set Details and Add PaymentDetails
* 4. Set Amount
* 5. Set Transaction
* 6. Add Payment Details and set Intent to "authorize"
* 7. Create APIContext by passing the clientID, secret and mode
* 8. Create Payment object and get paymentID
* 9. Set payerID to PaymentExecution object
* 10. Execute Payment and get Authorization
*
*/
 
Payer crunchifyPayer = new Payer ( ) ;
crunchifyPayer . setPaymentMethod ( "paypal" ) ;
 
// Redirect URLs
RedirectUrls crunchifyRedirectUrls = new RedirectUrls ( ) ;
crunchifyRedirectUrls . setCancelUrl ( "http://localhost:3000/crunchifyCancel" ) ;
crunchifyRedirectUrls . setReturnUrl ( "http://localhost:3000/crunchifyReturn" ) ;
 
// Set Payment Details Object
Details crunchifyDetails = new Details ( ) ;
crunchifyDetails . setShipping ( "2.22" ) ;
crunchifyDetails . setSubtotal ( "3.33" ) ;
crunchifyDetails . setTax ( "1.11" ) ;
 
// Set Payment amount
Amount crunchifyAmount = new Amount ( ) ;
crunchifyAmount . setCurrency ( "USD" ) ;
crunchifyAmount . setTotal ( "6.66" ) ;
crunchifyAmount . setDetails ( crunchifyDetails ) ;
 
// Set Transaction information
Transaction crunchifyTransaction = new Transaction ( ) ;
crunchifyTransaction . setAmount ( crunchifyAmount ) ;
crunchifyTransaction . setDescription ( "Crunchify Tutorial: How to Invoke PayPal REST API using Java Client?" ) ;
List < Transaction > crunchifyTransactions = new ArrayList < Transaction > ( ) ;
crunchifyTransactions . add ( crunchifyTransaction ) ;
 
// Add Payment details
Payment crunchifyPayment = new Payment ( ) ;
// Set Payment intent to authorize
crunchifyPayment . setIntent ( "authorize" ) ;
crunchifyPayment . setPayer ( crunchifyPayer ) ;
crunchifyPayment . setTransactions ( crunchifyTransactions ) ;
crunchifyPayment . setRedirectUrls ( crunchifyRedirectUrls ) ;
 
// Pass the clientID, secret and mode. The easiest, and most widely used option.
APIContext crunchifyapiContext = new APIContext ( crunchifyID , crunchifySecret , executionMode ) ;
 
try {
 
Payment myPayment = crunchifyPayment . create ( crunchifyapiContext ) ;
 
System . out . println ( "createdPayment Obejct Details ==> " + myPayment . toString ( ) ) ;
 
// Identifier of the payment resource created
crunchifyPayment . setId ( myPayment . getId ( ) ) ;
 
PaymentExecution crunchifyPaymentExecution = new PaymentExecution ( ) ;
 
// Set your PayerID. The ID of the Payer, passed in the `return_url` by PayPal.
crunchifyPaymentExecution . setPayerId ( "<!---- Add your PayerID here ---->" ) ;
 
// This call will fail as user has to access Payment on UI. Programmatically
// there is no way you can get Payer's consent.
Payment createdAuthPayment = crunchifyPayment . execute ( crunchifyapiContext , crunchifyPaymentExecution ) ;
 
// Transactional details including the amount and item details.
Authorization crunchifyAuthorization = createdAuthPayment . getTransactions ( ) . get ( 0 ) . getRelatedResources ( ) . get ( 0 ) . getAuthorization ( ) ;
 
log ( "Here is your Authorization ID" + crunchifyAuthorization . getId ( ) ) ;
 
} catch ( PayPalRESTException e ) {
 
// The "standard" error output stream. This stream is already open and ready to
// accept output data.
System . err . println ( e . getDetails ( ) ) ;
}
}
 
private void log ( String string ) {
System . out . println ( string ) ;
 
}
}

Eclipse Konsol Çıktısı:

Varsayılan olarak PayPal SDK, DEBUG modunu etkinleştirir ve bu nedenle Eclipse Console'a yapılan her isteği ve yanıtı günlüğe kaydeder.

Ayrıntılı bilgi için DEBUG modunu açık tuttum ve getAuthorization Çağrımızın ayrıntılı sonucunu burada sağladım.

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13 : 22 : 28.013 [ main ] DEBUG com . paypal . base . ConfigManager - sdk_config . properties not present . Skipping . . .
13 : 22 : 28.212 [ main ] DEBUG com . paypal . base . rest . OAuthTokenCredential - request header : { Authorization = Basic QVNuZG9aaEdGOEg1MFFQSWw5TGl0elhwSDVYTW16YlBwZmxJREFJOGVjUWVwdlJyWVQ4UnBfZUpNQmh1dHJVUHdaZU9CVGJUOE1GRksdfgsdfgsdfg3Q1ZLd0NzZTllRnBIZTNNNWpOR1liNHVxZ3BrNDNFVmFXR2hHNXR2Tk1na1IyZkZMUWdTUmRFY3Q3cG8 = , Accept = application / json , User - Agent = PayPalSDK / PayPal - Java - SDK 1.14.0 ( v = 11 ; vendor = Oracle Corporation ; bit = 64 ; os = Mac_OS_X 10.14.1 ) , Content - Type = application / x - www - form - urlencoded }
13 : 22 : 28.212 [ main ] DEBUG com . paypal . base . rest . OAuthTokenCredential - request body : grant_type = client_credentials
13 : 22 : 28.213 [ main ] DEBUG com . paypal . base . HttpConnection - curl command :
curl -- verbose -- request POST 'https://api.sandbox.paypal.com/v1/oauth2/token' \
  -- header "Authorization:Basic QVNuZG9aaEdGOEg1MFFQSWw5TGl0elhwSDVYTW16YlBwZmxJREFJOGVjUasdfasdflITlhSZ0xVMGhiOHhpa0M3Q1ZLd0NzZTllRnBIZTNNNWpOR1liNHVxZ3BrNDNFVmFXR2hHNXR2Tk1na1IyZkZMUWdTUmRFY3Q3cG8=" \
  -- header "Accept:application/json" \
  -- header "User-Agent:PayPalSDK/PayPal-Java-SDK 1.14.0 (v=11; vendor=Oracle Corporation; bit=64; os=Mac_OS_X 10.14.1)" \
  -- header "Content-Type:application/x-www-form-urlencoded" \
  -- data 'grant_type=client_credentials'
13 : 22 : 28.810 [ main ] DEBUG com . paypal . base . rest . OAuthTokenCredential - response header : { paypal - debug - id = [ 961e2e4122ac1 ] , null = [ HTTP / 1.1 200 OK ] , Paypal - Debug - Id = [ 961e2e4122ac1 ] , Server = [ Apache ] , Connection = [ close ] , Vary = [ Authorization ] , Set - Cookie = [ X - PP - SILOVER = ; Expires = Thu , 01 Jan 1970 00 : 00 : 01 GMT , X - PP - SILOVER = name % 3DSANDBOX3.API.1 % 26silo_version % 3D1880 % 26app % 3Dapiplatformproxyserv % 26TIME % 3D4098358363 % 26HTTP_X_PP_AZ_LOCATOR % 3Dsandbox.slc ; Expires = Mon , 26 Nov 2018 19 : 52 : 28 GMT ; domain = . paypal . com ; path =/ ; Secure ; HttpOnly ] , HTTP_X_PP_AZ_LOCATOR = [ sandbox . slc ] , Content - Length = [ 876 ] , X - PAYPAL - TOKEN - SERVICE = [ IAAS ] , Date = [ Mon , 26 Nov 2018 19 : 22 : 28 GMT ] , Content - Type = [ application / json ] }
13 : 22 : 28.810 [ main ] DEBUG com . paypal . base . rest . OAuthTokenCredential - response : { "scope" : "https://api.paypal.com/v1/payments/.* https://uri.paypal.com/services/payments/refund https://uri.paypal.com/services/applications/webhooks https://uri.paypal.com/services/payments/payment/authcapture https://uri.paypal.com/payments/payouts https://api.paypal.com/v1/vault/credit-card/.* https://uri.paypal.com/services/disputes/read-seller https://uri.paypal.com/services/subscriptions https://uri.paypal.com/services/disputes/read-buyer https://api.paypal.com/v1/vault/credit-card openid https://uri.paypal.com/services/disputes/update-seller https://uri.paypal.com/services/payments/realtimepayment" , "nonce" : "2018-11-26T19:03:03ZymZQ8MNE2MarndZEjUoxwB70puoxUA-NXqc7pUVtVxk" , "access_token" : "A21AAGyWgsdafxUM_1FCE5d9adsfuwfiOB7_4XkX3wKHWXe3nkKgt2bhadflirJsMWP9JAm-pBT2DtUJ5W0A" , "token_type" : "Bearer" , "app_id" : "APP-80W284ads543T" , "expires_in" : 31235 }
13 : 22 : 28.817 [ main ] DEBUG com . paypal . base . rest . PayPalResource - request header : { Authorization = Bearer A21AAGyWgsdafxUM_1FCE5d9adsfuwfiOB7_4XkX3wKHWXe3nkKgt2bhadflirJsMWP9JAm - pBT2DtUJ5W0A , User - Agent = PayPalSDK /   ( v = 11 ; vendor = Oracle Corporation ; bit = 64 ; os = Mac_OS_X 10.14.1 ) , PayPal - Request - Id = 74886e72 - 34e4 - 4a0 - 8cd7 - 6adsf63b5dc9 , Accept = application / json , Content - Type = application / json }
13 : 22 : 28.817 [ main ] DEBUG com . paypal . base . rest . PayPalResource - request body : {
   "intent" : "sale" ,
   "payer" : {
     "payment_method" : "paypal"
   } ,
   "transactions" : [
     {
       "amount" : {
         "currency" : "USD" ,
         "total" : "6.66" ,
         "details" : {
           "subtotal" : "3.33" ,
           "shipping" : "2.22" ,
           "tax" : "1.11"
         }
       } ,
       "description" : "Crunchify Tutorial: How to Invoke PayPal REST API using Java Client?"
     }
   ] ,
   "redirect_urls" : {
     "return_url" : "http://localhost:3000/crunchifyReturn" ,
     "cancel_url" : "http://localhost:3000/crunchifyCancel"
   }
}
13 : 22 : 28.818 [ main ] DEBUG com . paypal . base . HttpConnection - curl command :
curl -- verbose -- request POST 'https://api.sandbox.paypal.com/v1/payments/payment' \
  -- header "Authorization:Bearer A21AAGyWgsdafxUM_1FCE5d9adsfuwfiOB7_4XkX3wKHWXe3nkKgt2bhadflirJsMWP9JAm-pBT2DtUJ5W0A" \
  -- header "User-Agent:PayPalSDK/  (v=11; vendor=Oracle Corporation; bit=64; os=Mac_OS_X 10.14.1)" \
  -- header "PayPal-Request-Id:74886e72-34e4-4a70-8cd7-605cd63b5dc9" \
  -- header "Accept:application/json" \
  -- header "Content-Type:application/json" \
  -- data '{
  "intent": "sale",
  "payer": {
    "payment_method": "paypal"
  },
  "transactions": [
    {
      "amount": {
        "currency": "USD",
        "total": "6.66",
        "details": {
          "subtotal": "3.33",
          "shipping": "2.22",
          "tax": "1.11"
        }
      },
      "description": "Crunchify Tutorial: How to Invoke PayPal REST API using Java Client?"
    }
  ],
  "redirect_urls": {
    "return_url": "http://localhost:3000/crunchifyReturn",
    "cancel_url": "http://localhost:3000/crunchifyCancel"
  }
}'
13 : 22 : 33.407 [ main ] DEBUG com . paypal . base . rest . PayPalResource - response : { "id" : "PAY-25A74012S3552184CLP6EP6A" , "intent" : "sale" , "state" : "created" , "payer" : { "payment_method" : "paypal" } , "transactions" : [ { "amount" : { "total" : "6.66" , "currency" : "USD" , "details" : { "subtotal" : "3.33" , "tax" : "1.11" , "shipping" : "2.22" } } , "description" : "Crunchify Tutorial: How to Invoke PayPal REST API using Java Client?" , "related_resources" : [ ] } ] , "create_time" : "2018-11-26T19:22:32Z" , "links" : [ { "href" : "https://api.sandbox.paypal.com/v1/payments/payment/PAY-25A74012S3552184CLP6EP6A" , "rel" : "self" , "method" : "GET" } , { "href" : "https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=EC-9C691969F1033220V" , "rel" : "approval_url" , "method" : "REDIRECT" } , { "href" : "https://api.sandbox.paypal.com/v1/payments/payment/PAY-25A74012S3552184CLP6EP6A/execute" , "rel" : "execute" , "method" : "POST" } ] }
createdPayment Obejct Details == > {
   "id" : "PAY-25A74012S3552184CLP6EP6A" ,
   "intent" : "sale" ,
   "payer" : {
     "payment_method" : "paypal"
   } ,
   "transactions" : [
     {
       "related_resources" : [ ] ,
       "amount" : {
         "currency" : "USD" ,
         "total" : "6.66" ,
         "details" : {
           "subtotal" : "3.33" ,
           "shipping" : "2.22" ,
           "tax" : "1.11"
         }
       } ,
       "description" : "How to Invoke PayPal REST API using Java Client?"
     }
   ] ,
   "state" : "created" ,
   "create_time" : "2018-11-26T19:22:32Z" ,
   "links" : [
     {
       "href" : "https://api.sandbox.paypal.com/v1/payments/payment/PAY-25A74012S3552184CLP6EP6A" ,
       "rel" : "self" ,
       "method" : "GET"
     } ,
     {
       "href" : "https://www.sandbox.paypal.com/cgi-bin/webscr?cmd\u003d_express-checkout\u0026token\u003dEC-9C691969F1033220V" ,
       "rel" : "approval_url" ,
       "method" : "REDIRECT"
     } ,
     {
       "href" : "https://api.sandbox.paypal.com/v1/payments/payment/PAY-25A74012S3552184CLP6EP6A/execute" ,
       "rel" : "execute" ,
       "method" : "POST"
     }
   ]
}
13 : 22 : 33.414 [ main ] DEBUG com . paypal . base . rest . PayPalResource - request header : { Authorization = Bearer A21AAGyWgkMoxUM_1FCE5d948J5SAxIuwfiOB7_4XkX3wKHWXe3nkKgt2bhtXISnazHlE9yzlirJsMWP9JAm - pBT2DtUJ5W0A , User - Agent = PayPalSDK /   ( v = 11 ; vendor = Oracle Corporation ; bit = 64 ; os = Mac_OS_X 10.14.1 ) , PayPal - Request - Id = e47412c8 - 2c1f - 4505 - b1a3 - 7b4723eb99f4 , Accept = application / json , Content - Type = application / json }
13 : 22 : 33.415 [ main ] DEBUG com . paypal . base . rest . PayPalResource - request body : {
   "payer_id" : "1Z232AMNN"
}
13 : 22 : 33.415 [ main ] DEBUG com . paypal . base . HttpConnection - curl command :
curl -- verbose -- request POST 'https://api.sandbox.paypal.com/v1/payments/payment/PAY-25A74012S3552184CLP6EP6A/execute' \
  -- header "Authorization:Bearer A21AAGyWgsdafxUM_1FCE5d9adsfuwfiOB7_4XkX3wKHWXe3nkKgt2bhadflirJsMWP9JAm-pBT2DtUJ5W0A" \
  -- header "User-Agent:PayPalSDK/  (v=11; vendor=Oracle Corporation; bit=64; os=Mac_OS_X 10.14.1)" \
  -- header "PayPal-Request-Id:eadf412c8-2c1f-4505-b1a3-7basdaf99f4" \
  -- header "Accept:application/json" \
  -- header "Content-Type:application/json" \
  -- data '{
  "payer_id": "1Z232AMNN"
}'
13 : 22 : 34.016 [ main ] ERROR com . paypal . base . HttpConnection - Response code : 400 Error response : { "name" : "PAYMENT_NOT_APPROVED_FOR_EXECUTION" , "message" : "Payer has not approved payment" , "information_link" : "https://developer.paypal.com/docs/api/payments/#errors" , "debug_id" : "113d5208bf8d3" }
name : PAYMENT_NOT_APPROVED_FOR_EXECUTION message : Payer has not approved payment details : null debug - id : 113d5208bf8d3 information - link : https : //developer.paypal.com/docs/api/payments/#errors

Aynı şekilde, sonraki birkaç öğreticide, nasıl para çekeceğiniz, how to capture money refund money edeceğiniz ve Payer'ın hesabına void any authorization konusunda daha fazla ayrıntı sağlayacağım.