(Unicode C++) PayPal List Merchant Invoices

List PayPal invoices.

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#include <CkJsonObjectW.h>
#include <CkStringBuilderW.h>
#include <CkRestW.h>

void ChilkatSample(void)
    {
    // Note: Requires Chilkat v9.5.0.64 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)
    CkJsonObjectW jsonToken;
    jsonToken.LoadFile(L"qa_data/tokens/paypal.json");

    // Build the Authorization request header field value.
    CkStringBuilderW sbAuth;
    // token_type should be "Bearer"
    sbAuth.Append(jsonToken.stringOf(L"token_type"));
    sbAuth.Append(L" ");
    sbAuth.Append(jsonToken.stringOf(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.
    CkRestW rest;
    bool bAutoReconnect = true;
    bool success = rest.Connect(L"api.sandbox.paypal.com",443,true,bAutoReconnect);
    if (success != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        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..
    // ----------------------------------------------------------------------------------------------

    rest.AddHeader(L"Authorization",sbAuth.getAsString());
    rest.AddQueryParam(L"page",L"0");
    rest.AddQueryParam(L"page_size",L"20");
    rest.AddQueryParam(L"total_count_required",L"true");

    // Send the GET request and get the JSON response.
    CkStringBuilderW sbJsonResponse;
    success = rest.FullRequestNoBodySb(L"GET",L"/v1/invoicing/invoices",sbJsonResponse);
    if (success != true) {
        wprintf(L"%s\n",rest.lastErrorText());
        return;
    }

    CkJsonObjectW json;
    json.put_EmitCompact(false);
    json.LoadSb(sbJsonResponse);

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

    // Did we get a 200 success response?
    if (rest.get_ResponseStatusCode() != 200) {
        wprintf(L"%s\n",json.emit());
        wprintf(L"Failed.\n");
        return;
    }

    // Sample response JSON is shown below.

    // Iterate over each invoice and get some information from each..
    int numInvoices = json.SizeOfArray(L"invoices");
    int i = 0;
    while (i < numInvoices) {
        json.put_I(i);
        wprintf(L"Invoice ID: %s\n",json.stringOf(L"invoices[i].id"));
        wprintf(L"Invoice Number: %s\n",json.stringOf(L"invoices[i].number"));
        wprintf(L"Invoice Status: %s\n",json.stringOf(L"invoices[i].status"));
        wprintf(L"Shipping First Name: %s\n",json.stringOf(L"invoices[i].shipping_info.first_name"));
        int j = 0;
        int numBillingInfo = json.SizeOfArray(L"invoices[i].billing_info");
        while (j < numBillingInfo) {
            json.put_J(j);
            wprintf(L"billing_info email: %s\n",json.stringOf(L"invoices[i].billing_info[j].email"));
            j = j + 1;
        }

        int numLinks = json.SizeOfArray(L"invoices[i].links");
        j = 0;
        while (j < numLinks) {
            json.put_J(j);
            wprintf(L"link: %s\n",json.stringOf(L"invoices[i].links[j].href"));
            j = j + 1;
        }

        wprintf(L"----\n");
        i = i + 1;
    }

    wprintf(L"Success.\n");

    // 	{ 
    // 	  "total_count": 2,
    // 	  "invoices": [
    // 	    { 
    // 	      "id": "INV2-XV4B-736P-PLVN-SZCE",
    // 	      "number": "0002",
    // 	      "status": "DRAFT",
    // 	      "merchant_info": { 
    // 	        "email": "smith-facilitator@chilkatsoft.com"
    // 	      },
    // 	      "billing_info": [
    // 	        { 
    // 	          "email": "smith-buyer@chilkatsoft.com"
    // 	        }
    // 	      ],
    // 	      "shipping_info": { 
    // 	        "email": "smith-buyer@chilkatsoft.com",
    // 	        "first_name": "Sally",
    // 	        "last_name": "Patient",
    // 	        "business_name": "Not applicable"
    // 	      },
    // 	      "invoice_date": "2016-11-15 PST",
    // 	      "payment_term": { 
    // 	        "due_date": "2016-12-30 PST"
    // 	      },
    // 	      "note": "Medical Invoice 16 Jul, 2013 PST",
    // 	      "total_amount": { 
    // 	        "currency": "USD",
    // 	        "value": "500.00"
    // 	      },
    // 	      "metadata": { 
    // 	        "created_date": "2016-11-15 08:09:21 PST"
    // 	      },
    // 	      "paid_amount": { 
    // 	        "paypal": { 
    // 	          "currency": "USD",
    // 	          "value": "0.00"
    // 	        },
    // 	        "other": { 
    // 	          "currency": "USD",
    // 	          "value": "0.00"
    // 	        }
    // 	      },
    // 	      "refunded_amount": { 
    // 	        "paypal": { 
    // 	          "currency": "USD",
    // 	          "value": "0.00"
    // 	        },
    // 	        "other": { 
    // 	          "currency": "USD",
    // 	          "value": "0.00"
    // 	        }
    // 	      },
    // 	      "links": [
    // 	        { 
    // 	          "rel": "self",
    // 	          "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-XV4B-736P-PLVN-SZCE",
    // 	          "method": "GET"
    // 	        },
    // 	        { 
    // 	          "rel": "send",
    // 	          "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-XV4B-736P-PLVN-SZCE/send",
    // 	          "method": "POST"
    // 	        },
    // 	        { 
    // 	          "rel": "update",
    // 	          "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-XV4B-736P-PLVN-SZCE/update",
    // 	          "method": "PUT"
    // 	        },
    // 	        { 
    // 	          "rel": "delete",
    // 	          "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-XV4B-736P-PLVN-SZCE",
    // 	          "method": "DELETE"
    // 	        }
    // 	      ]
    // 	    },
    // 	    { 
    // 	      "id": "INV2-ZG2H-HKAW-PMWU-N6ZR",
    // 	      "number": "0001",
    // 	      "status": "SENT",
    // 	      "merchant_info": { 
    // 	        "email": "smith-facilitator@chilkatsoft.com"
    // 	      },
    // 	      "billing_info": [
    // 	        { 
    // 	          "email": "smith-buyer@chilkatsoft.com"
    // 	        }
    // 	      ],
    // 	      "shipping_info": { 
    // 	        "email": "smith-buyer@chilkatsoft.com",
    // 	        "first_name": "Sally",
    // 	        "last_name": "Patient",
    // 	        "business_name": "Not applicable"
    // 	      },
    // 	      "invoice_date": "2016-11-15 PST",
    // 	      "payment_term": { 
    // 	        "due_date": "2016-12-30 PST"
    // 	      },
    // 	      "note": "Medical Invoice 16 Jul, 2013 PST",
    // 	      "total_amount": { 
    // 	        "currency": "USD",
    // 	        "value": "500.00"
    // 	      },
    // 	      "metadata": { 
    // 	        "created_date": "2016-11-15 06:17:03 PST",
    // 	        "payer_view_url": "https://www.sandbox.paypal.com/cgi_bin/webscr?cmd=_pay-inv&viewtype=altview&id=INV2-ZG2H-HKAW-PMWU-N6ZR"
    // 	      },
    // 	      "paid_amount": { 
    // 	        "paypal": { 
    // 	          "currency": "USD",
    // 	          "value": "0.00"
    // 	        },
    // 	        "other": { 
    // 	          "currency": "USD",
    // 	          "value": "0.00"
    // 	        }
    // 	      },
    // 	      "refunded_amount": { 
    // 	        "paypal": { 
    // 	          "currency": "USD",
    // 	          "value": "0.00"
    // 	        },
    // 	        "other": { 
    // 	          "currency": "USD",
    // 	          "value": "0.00"
    // 	        }
    // 	      },
    // 	      "links": [
    // 	        { 
    // 	          "rel": "self",
    // 	          "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR",
    // 	          "method": "GET"
    // 	        },
    // 	        { 
    // 	          "rel": "update",
    // 	          "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/update",
    // 	          "method": "PUT"
    // 	        },
    // 	        { 
    // 	          "rel": "cancel",
    // 	          "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/remind",
    // 	          "method": "POST"
    // 	        },
    // 	        { 
    // 	          "rel": "remind",
    // 	          "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/cancel",
    // 	          "method": "POST"
    // 	        },
    // 	        { 
    // 	          "rel": "record-payment",
    // 	          "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/record-payment",
    // 	          "method": "POST"
    // 	        },
    // 	        { 
    // 	          "rel": "qr-code",
    // 	          "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices/INV2-ZG2H-HKAW-PMWU-N6ZR/qr-code",
    // 	          "method": "GET"
    // 	        }
    // 	      ]
    // 	    }
    // 	  ],
    // 	  "links": [
    // 	    { 
    // 	      "rel": "self",
    // 	      "href": "https://api.sandbox.paypal.com/v1/invoicing/invoices?page=0&page_size=20&total_count_required=true",
    // 	      "method": "GET"
    // 	    }
    // 	  ]
    // 	}
    // 
    }