(MFC) PayPal - Update Invoice

Update a PayPal invoice.

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

See also PayPal Update Invoice REST API Reference

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

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

void ChilkatSample(void)
    {
    CkString strOut;

    // 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)
    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;
    bool success = rest.Connect("api.sandbox.paypal.com",443,true,bAutoReconnect);
    if (success != true) {
        strOut.append(rest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        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..
    // ----------------------------------------------------------------------------------------------

    // First create the JSON with updated information:

    CkJsonObject json;
    json.put_EmitCompact(false);
    json.UpdateString("merchant_info.email","smith-facilitator@chilkatsoft.com");
    json.UpdateString("merchant_info.first_name","Joe");
    json.UpdateString("merchant_info.last_name","Facilitator");
    json.UpdateString("merchant_info.business_name","Medical Professionals, LLC");
    json.UpdateString("merchant_info.phone.country_code","001");
    json.UpdateString("merchant_info.phone.national_number","5032141716");
    json.UpdateString("merchant_info.address.line1","1234 Main St.");
    json.UpdateString("merchant_info.address.city","Portland");
    json.UpdateString("merchant_info.address.state","OR");
    json.UpdateString("merchant_info.address.postal_code","97217");
    json.UpdateString("merchant_info.address.country_code","US");
    json.UpdateString("billing_info[0].email","smith-buyer@chilkatsoft.com");
    json.UpdateString("shipping_info.first_name","Sally");
    json.UpdateString("shipping_info.last_name","Patient");
    json.UpdateString("shipping_info.business_name","Not applicable");
    json.UpdateString("shipping_info.phone.country_code","001");
    json.UpdateString("shipping_info.phone.national_number","5039871234");
    json.UpdateString("shipping_info.address.line1","1234 Broad St.");
    json.UpdateString("shipping_info.address.city","Portland");
    json.UpdateString("shipping_info.address.state","OR");
    json.UpdateString("shipping_info.address.postal_code","97216");
    json.UpdateString("shipping_info.address.country_code","US");
    json.UpdateString("items[0].name","Sutures");
    // We are updating the quantity from 100.0 to 200.0
    // Note: The UpdateNumber method is added in v9.5.0.65
    json.UpdateNumber("items[0].quantity","200.0");
    json.UpdateString("items[0].unit_price.currency","USD");
    json.UpdateString("items[0].unit_price.value","5.00");
    json.UpdateString("payment_term.term_type","NET_45");
    json.UpdateString("payment_term.due_date","2016-12-30 PST");
    json.UpdateString("note","Medical Invoice 16 Jul, 2013 PST");

    // The JSON created by the above code is this:

    // 	{ 
    // 	  "merchant_info": { 
    // 	    "email": "smith-facilitator@chilkatsoft.com",
    // 	    "first_name": "Joe",
    // 	    "last_name": "Facilitator",
    // 	    "business_name": "Medical Professionals, LLC",
    // 	    "phone": { 
    // 	      "country_code": "001",
    // 	      "national_number": "5032141716"
    // 	    },
    // 	    "address": { 
    // 	      "line1": "1234 Main St.",
    // 	      "city": "Portland",
    // 	      "state": "OR",
    // 	      "postal_code": "97217",
    // 	      "country_code": "US"
    // 	    }
    // 	  },
    // 	  "billing_info": [
    // 	    { 
    // 	      "email": "smith-buyer@chilkatsoft.com"
    // 	    }
    // 	  ],
    // 	  "shipping_info": { 
    // 	    "first_name": "Sally",
    // 	    "last_name": "Patient",
    // 	    "business_name": "Not applicable",
    // 	    "phone": { 
    // 	      "country_code": "001",
    // 	      "national_number": "5039871234"
    // 	    },
    // 	    "address": { 
    // 	      "line1": "1234 Broad St.",
    // 	      "city": "Portland",
    // 	      "state": "OR",
    // 	      "postal_code": "97216",
    // 	      "country_code": "US"
    // 	    }
    // 	  },
    // 	  "items": [
    // 	    { 
    // 	      "name": "Sutures",
    // 	      "quantity": 200.0,
    // 	      "unit_price": { 
    // 	        "currency": "USD",
    // 	        "value": "5.00"
    // 	      }
    // 	    }
    // 	  ],
    // 	  "payment_term": { 
    // 	    "term_type": "NET_45",
    // 	    "due_date": "2016-12-30 PST"
    // 	  },
    // 	  "note": "Medical Invoice 16 Jul, 2013 PST"
    // 	}

    rest.AddHeader("Authorization",sbAuth.getAsString());
    rest.AddHeader("Content-Type","application/json");

    const char *invoiceId = "INV2-XV4B-736P-PLVN-SZCE";

    CkStringBuilder sbPath;
    sbPath.Append("/v1/invoicing/invoices/");
    sbPath.Append(invoiceId);

    // Send the PUT request containign the JSON in the request body, and get the JSON response.
    CkStringBuilder sbJsonRequest;
    json.EmitSb(sbJsonRequest);
    CkStringBuilder sbJsonResponse;
    success = rest.FullRequestSb("PUT",sbPath.getAsString(),sbJsonRequest,sbJsonResponse);
    if (success != true) {
        strOut.append(rest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    json.LoadSb(sbJsonResponse);

    strOut.append("Response Status Code = ");
    strOut.appendInt(rest.get_ResponseStatusCode());
    strOut.append("\r\n");

    // Did we get a 200 success response?
    if (rest.get_ResponseStatusCode() != 200) {
        strOut.append(json.emit());
        strOut.append("\r\n");
        strOut.append("Failed.");
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Sample response JSON is shown below.

    // Get some information..
    strOut.append("email: ");
    strOut.append(json.stringOf("merchant_info.email"));
    strOut.append("\r\n");
    strOut.append("business_name: ");
    strOut.append(json.stringOf("merchant_info.business_name"));
    strOut.append("\r\n");

    int numItems = json.SizeOfArray("items");
    int i = 0;
    while (i < numItems) {
        json.put_I(i);
        strOut.append("item name: ");
        strOut.append(json.stringOf("items[i].name"));
        strOut.append("\r\n");
        strOut.append("item quantity: ");
        strOut.append(json.stringOf("items[i].quantity"));
        strOut.append("\r\n");
        strOut.append("item currency: ");
        strOut.append(json.stringOf("items[i].unit_price.currency"));
        strOut.append("\r\n");
        strOut.append("item value: ");
        strOut.append(json.stringOf("items[i].unit_price.value"));
        strOut.append("\r\n");
        strOut.append("----");
        strOut.append("\r\n");
        i = i + 1;
    }

    strOut.append("Success.");
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }