C++

PayPal - Find Completed Sales

See more PayPal Examples

List payments and find completed payments (sales transactions). Get the sales id, state, and total amount for each. C++

#include <CkJsonObject.h>
#include <CkStringBuilder.h>
#include <CkRest.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  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)
    CkJsonObject jsonToken;
    jsonToken.LoadFile("qa_data/tokens/paypal.json");

    //  Build the Authorization request header field value.
    CkStringBuilder sbAuth;
    //  token_type should be "Bearer"
    sbAuth.Append(jsonToken.stringOf("token_type"));
    sbAuth.Append(" ");
    sbAuth.Append(jsonToken.stringOf("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.
    CkRest rest;
    bool bAutoReconnect = true;
    success = rest.Connect("api.sandbox.paypal.com",443,true,bAutoReconnect);
    if (success == false) {
        std::cout << rest.lastErrorText() << "\r\n";
        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.
    rest.ClearAllHeaders();
    rest.ClearAllQueryParams();

    rest.AddHeader("Authorization",sbAuth.getAsString());

    //  To find sales transactions, we list payments and look for those
    //  containing "sale" transactions
    rest.AddQueryParam("count","100");
    rest.AddQueryParam("start_index","0");
    rest.AddQueryParam("sort_by","update_time");
    rest.AddQueryParam("sort_order","asc");

    //  Send the GET request and get the JSON response.
    CkStringBuilder sbJsonResponse;
    success = rest.FullRequestNoBodySb("GET","/v1/payments/payment",sbJsonResponse);
    if (success == false) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

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

    //  (optional) Save the entire JSON response to a file to examine if desired..
    CkStringBuilder sbTemp;
    json.EmitSb(sbTemp);
    sbTemp.WriteFile("qa_output/paypal_payments.json","utf-8",false);

    std::cout << "Response Status Code = " << rest.get_ResponseStatusCode() << "\r\n";

    //  Did we get a 200 success response?
    if (rest.get_ResponseStatusCode() != 200) {
        std::cout << json.emit() << "\r\n";
        std::cout << "Failed." << "\r\n";
        return;
    }

    //  We are looking for sales transactions .
    //  As shown below, we are looking in the "transactions" for "related_resources"
    //  containing "sale" JSON objects. 

    //  	{ 
    //  	  "payments": [
    //  	    { 
    //  	      "id": "PAY-66A12106PU3254228LA3BYKI",
    //  	      "create_time": "2016-11-23T22:46:01Z",
    //  	      "update_time": "2016-11-23T22:46:07Z",
    //  	      "state": "approved",
    //  	      "intent": "sale",
    //  	      "payer": { 
    //  	          ...
    //  	          }
    //  	        ]
    //  	      },
    //  	      "transactions": [
    //  	        { 
    //  	          ...
    //  	          "related_resources": [
    //  	            { 
    //  	              "sale": { 
    //  	                "id": "70L88278E6781074B",
    //  	                "create_time": "2016-11-23T22:46:01Z",
    //  	                "update_time": "2016-11-23T22:46:07Z",
    //  	                "amount": { 
    //  	                  "total": "7.47",
    //  	                  "currency": "USD"
    //  	                },
    //  	                "state": "completed",
    //  	                "parent_payment": "PAY-66A12106PU3254228LA3BYKI",

    //  Iterate over the payments and show each sale transaction.
    CkJsonObject jsonSale;
    int numPayments = json.SizeOfArray("payments");
    int i = 0;
    while (i < numPayments) {

        json.put_I(i);
        int j = 0;
        int numTransactions = json.SizeOfArray("payments[i].transactions");
        while (j < numTransactions) {
            json.put_J(j);
            int numRelatedResources = json.SizeOfArray("payments[i].transactions[j].related_resources");
            int k = 0;
            while (k < numRelatedResources) {
                json.put_K(k);
                if (json.HasMember("payments[i].transactions[j].related_resources[k].sale") == true) {

                    json.ObjectOf2("payments[i].transactions[j].related_resources[k].sale",jsonSale);

                    std::cout << "sale id: " << jsonSale.stringOf("id") << "\r\n";
                    std::cout << "state: " << jsonSale.stringOf("state") << "\r\n";
                    std::cout << "total: " << jsonSale.stringOf("amount.total") << "\r\n";
                    std::cout << "----" << "\r\n";
                }

                k = k + 1;
            }

            j = j + 1;
        }

        i = i + 1;
    }

    std::cout << "success" << "\r\n";
    }