Chilkat Examples

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Unicode C Web API Examples

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(Unicode C) PayPal - Show Payment Details

Shows details for a payment by ID.

Note: This example requires Chilkat v9.5.0.65 or greater.

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#include <C_CkJsonObjectW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkRestW.h>
#include <C_CkDateTimeW.h>
#include <C_CkDtObjW.h>

void ChilkatSample(void)
    {
    HCkJsonObjectW jsonToken;
    HCkStringBuilderW sbAuth;
    HCkRestW rest;
    BOOL bAutoReconnect;
    BOOL success;
    HCkStringBuilderW sbPath;
    int numReplaced;
    HCkStringBuilderW sbJsonResponse;
    HCkJsonObjectW json;
    HCkDateTimeW dateTime;
    HCkDtObjW dtUtc;

    // Note: Requires Chilkat v9.5.0.65 or greater.

    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // Load our previously obtained access token. (see PayPal OAuth2 Access Token)
    jsonToken = CkJsonObjectW_Create();
    CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/paypal.json");

    // Build the Authorization request header field value.
    sbAuth = CkStringBuilderW_Create();
    // token_type should be "Bearer"
    CkStringBuilderW_Append(sbAuth,CkJsonObjectW_stringOf(jsonToken,L"token_type"));
    CkStringBuilderW_Append(sbAuth,L" ");
    CkStringBuilderW_Append(sbAuth,CkJsonObjectW_stringOf(jsonToken,L"access_token"));

    // Make the initial connection.
    // A single REST object, once connected, can be used for many PayPal REST API calls.
    // The auto-reconnect indicates that if the already-established HTTPS connection is closed,
    // then it will be automatically re-established as needed.
    rest = CkRestW_Create();
    bAutoReconnect = TRUE;
    success = CkRestW_Connect(rest,L"api.sandbox.paypal.com",443,TRUE,bAutoReconnect);
    if (success != TRUE) {
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkJsonObjectW_Dispose(jsonToken);
        CkStringBuilderW_Dispose(sbAuth);
        CkRestW_Dispose(rest);
        return;
    }

    // ----------------------------------------------------------------------------------------------
    // The code above this comment could be placed inside a function/subroutine within the application
    // because the connection does not need to be made for every request.  Once the connection is made
    // the app may send many requests..
    // ----------------------------------------------------------------------------------------------

    // Clear the REST object of any headers or query params from previous requests.
    CkRestW_ClearAllHeaders(rest);
    CkRestW_ClearAllQueryParams(rest);

    CkRestW_AddHeader(rest,L"Authorization",CkStringBuilderW_getAsString(sbAuth));

    // The payment ID is added to the path.
    sbPath = CkStringBuilderW_Create();
    CkStringBuilderW_Append(sbPath,L"/v1/payments/payment/payment_id");
    numReplaced = CkStringBuilderW_Replace(sbPath,L"payment_id",L"PAY-2CY489250W145633HLA3DK3Y");

    // Send the GET request and get the JSON response.
    sbJsonResponse = CkStringBuilderW_Create();
    success = CkRestW_FullRequestNoBodySb(rest,L"GET",CkStringBuilderW_getAsString(sbPath),sbJsonResponse);
    if (success != TRUE) {
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkJsonObjectW_Dispose(jsonToken);
        CkStringBuilderW_Dispose(sbAuth);
        CkRestW_Dispose(rest);
        CkStringBuilderW_Dispose(sbPath);
        CkStringBuilderW_Dispose(sbJsonResponse);
        return;
    }

    json = CkJsonObjectW_Create();
    CkJsonObjectW_putEmitCompact(json,FALSE);
    CkJsonObjectW_LoadSb(json,sbJsonResponse);

    wprintf(L"Response Status Code = %d\n",CkRestW_getResponseStatusCode(rest));

    // Did we get a 200 success response?
    if (CkRestW_getResponseStatusCode(rest) != 200) {
        wprintf(L"%s\n",CkJsonObjectW_emit(json));
        wprintf(L"Failed.\n");
        CkJsonObjectW_Dispose(jsonToken);
        CkStringBuilderW_Dispose(sbAuth);
        CkRestW_Dispose(rest);
        CkStringBuilderW_Dispose(sbPath);
        CkStringBuilderW_Dispose(sbJsonResponse);
        CkJsonObjectW_Dispose(json);
        return;
    }

    // Sample JSON response is shown below.
    wprintf(L"%s\n",CkJsonObjectW_emit(json));
    wprintf(L"----------------------\n");

    // Show how to get a timestamp, such as update_time.
    dateTime = CkDateTimeW_Create();
    success = CkDateTimeW_SetFromTimestamp(dateTime,CkJsonObjectW_stringOf(json,L"update_time"));
    wprintf(L"utc update_time: %s\n",CkDateTimeW_getAsTimestamp(dateTime,FALSE));
    wprintf(L"local update_time: %s\n",CkDateTimeW_getAsTimestamp(dateTime,TRUE));
    wprintf(L"utc rfc822: %s\n",CkDateTimeW_getAsRfc822(dateTime,FALSE));
    wprintf(L"local rfc822: %s\n",CkDateTimeW_getAsRfc822(dateTime,TRUE));

    dtUtc = CkDateTimeW_GetDtObj(dateTime,FALSE);
    wprintf(L"%d/%d/%d\n",CkDtObjW_getMonth(dtUtc),CkDtObjW_getDay(dtUtc),CkDtObjW_getYear(dtUtc));
    CkDtObjW_Dispose(dtUtc);

    wprintf(L"success\n");

    // ------------------------------------------------
    // A sample JSON response:

    // 	{ 
    // 	  "id": "PAY-2CY489250W145633HLA3DK3Y",
    // 	  "create_time": "2016-11-24T00:33:51Z",
    // 	  "update_time": "2016-11-24T00:40:54Z",
    // 	  "state": "approved",
    // 	  "intent": "authorize",
    // 	  "payer": { 
    // 	    "payment_method": "credit_card",
    // 	    "funding_instruments": [
    // 	      { 
    // 	        "credit_card_token": { 
    // 	          "credit_card_id": "CARD-52W84623JH8043102LA3CLGA",
    // 	          "payer_id": "user12345",
    // 	          "last4": "9974",
    // 	          "type": "visa",
    // 	          "expire_month": "9",
    // 	          "expire_year": "2021"
    // 	        }
    // 	      }
    // 	    ]
    // 	  },
    // 	  "transactions": [
    // 	    { 
    // 	      "amount": { 
    // 	        "total": "6.70",
    // 	        "currency": "USD",
    // 	        "details": { 
    // 	          "subtotal": "6.70"
    // 	        }
    // 	      },
    // 	      "description": "This is the payment transaction description.",
    // 	      "related_resources": [
    // 	        { 
    // 	          "authorization": { 
    // 	            "id": "7X8332687A4929542",
    // 	            "create_time": "2016-11-24T00:33:51Z",
    // 	            "update_time": "2016-11-24T00:33:58Z",
    // 	            "amount": { 
    // 	              "total": "6.70",
    // 	              "currency": "USD",
    // 	              "details": { 
    // 	                "subtotal": "6.70"
    // 	              }
    // 	            },
    // 	            "state": "captured",
    // 	            "parent_payment": "PAY-2CY489250W145633HLA3DK3Y",
    // 	            "valid_until": "2016-12-23T00:33:51Z",
    // 	            "links": [
    // 	              { 
    // 	                "href": "https://api.sandbox.paypal.com/v1/payments/authorization/7X8332687A4929542",
    // 	                "rel": "self",
    // 	                "method": "GET"
    // 	              },
    // 	              { 
    // 	                "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2CY489250W145633HLA3DK3Y",
    // 	                "rel": "parent_payment",
    // 	                "method": "GET"
    // 	              }
    // 	            ]
    // 	          }
    // 	        },
    // 	        { 
    // 	          "capture": { 
    // 	            "id": "1LY5310469661362J",
    // 	            "create_time": "2016-11-24T00:40:50Z",
    // 	            "update_time": "2016-11-24T00:40:54Z",
    // 	            "amount": { 
    // 	              "total": "4.54",
    // 	              "currency": "USD"
    // 	            },
    // 	            "state": "completed",
    // 	            "parent_payment": "PAY-2CY489250W145633HLA3DK3Y",
    // 	            "transaction_fee": { 
    // 	              "value": "0.43",
    // 	              "currency": "USD"
    // 	            },
    // 	            "links": [
    // 	              { 
    // 	                "href": "https://api.sandbox.paypal.com/v1/payments/capture/1LY5310469661362J",
    // 	                "rel": "self",
    // 	                "method": "GET"
    // 	              },
    // 	              { 
    // 	                "href": "https://api.sandbox.paypal.com/v1/payments/capture/1LY5310469661362J/refund",
    // 	                "rel": "refund",
    // 	                "method": "POST"
    // 	              },
    // 	              { 
    // 	                "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2CY489250W145633HLA3DK3Y",
    // 	                "rel": "parent_payment",
    // 	                "method": "GET"
    // 	              }
    // 	            ]
    // 	          }
    // 	        }
    // 	      ]
    // 	    }
    // 	  ],
    // 	  "links": [
    // 	    { 
    // 	      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2CY489250W145633HLA3DK3Y",
    // 	      "rel": "self",
    // 	      "method": "GET"
    // 	    }
    // 	  ]
    // 	}


    CkJsonObjectW_Dispose(jsonToken);
    CkStringBuilderW_Dispose(sbAuth);
    CkRestW_Dispose(rest);
    CkStringBuilderW_Dispose(sbPath);
    CkStringBuilderW_Dispose(sbJsonResponse);
    CkJsonObjectW_Dispose(json);
    CkDateTimeW_Dispose(dateTime);

    }

 

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