(C) 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

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#include <C_CkJsonObject.h>
#include <C_CkStringBuilder.h>
#include <C_CkRest.h>

void ChilkatSample(void)
    {
    HCkJsonObject jsonToken;
    HCkStringBuilder sbAuth;
    HCkRest rest;
    BOOL bAutoReconnect;
    BOOL success;
    HCkJsonObject json;
    const char *invoiceId;
    HCkStringBuilder sbPath;
    HCkStringBuilder sbJsonRequest;
    HCkStringBuilder sbJsonResponse;
    int numItems;
    int i;

    // 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 = CkJsonObject_Create();
    CkJsonObject_LoadFile(jsonToken,"qa_data/tokens/paypal.json");

    // Build the Authorization request header field value.
    sbAuth = CkStringBuilder_Create();
    // token_type should be "Bearer"
    CkStringBuilder_Append(sbAuth,CkJsonObject_stringOf(jsonToken,"token_type"));
    CkStringBuilder_Append(sbAuth," ");
    CkStringBuilder_Append(sbAuth,CkJsonObject_stringOf(jsonToken,"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 = CkRest_Create();
    bAutoReconnect = TRUE;
    success = CkRest_Connect(rest,"api.sandbox.paypal.com",443,TRUE,bAutoReconnect);
    if (success != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkJsonObject_Dispose(jsonToken);
        CkStringBuilder_Dispose(sbAuth);
        CkRest_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..
    // ----------------------------------------------------------------------------------------------

    // First create the JSON with updated information:

    json = CkJsonObject_Create();
    CkJsonObject_putEmitCompact(json,FALSE);
    CkJsonObject_UpdateString(json,"merchant_info.email","smith-facilitator@chilkatsoft.com");
    CkJsonObject_UpdateString(json,"merchant_info.first_name","Joe");
    CkJsonObject_UpdateString(json,"merchant_info.last_name","Facilitator");
    CkJsonObject_UpdateString(json,"merchant_info.business_name","Medical Professionals, LLC");
    CkJsonObject_UpdateString(json,"merchant_info.phone.country_code","001");
    CkJsonObject_UpdateString(json,"merchant_info.phone.national_number","5032141716");
    CkJsonObject_UpdateString(json,"merchant_info.address.line1","1234 Main St.");
    CkJsonObject_UpdateString(json,"merchant_info.address.city","Portland");
    CkJsonObject_UpdateString(json,"merchant_info.address.state","OR");
    CkJsonObject_UpdateString(json,"merchant_info.address.postal_code","97217");
    CkJsonObject_UpdateString(json,"merchant_info.address.country_code","US");
    CkJsonObject_UpdateString(json,"billing_info[0].email","smith-buyer@chilkatsoft.com");
    CkJsonObject_UpdateString(json,"shipping_info.first_name","Sally");
    CkJsonObject_UpdateString(json,"shipping_info.last_name","Patient");
    CkJsonObject_UpdateString(json,"shipping_info.business_name","Not applicable");
    CkJsonObject_UpdateString(json,"shipping_info.phone.country_code","001");
    CkJsonObject_UpdateString(json,"shipping_info.phone.national_number","5039871234");
    CkJsonObject_UpdateString(json,"shipping_info.address.line1","1234 Broad St.");
    CkJsonObject_UpdateString(json,"shipping_info.address.city","Portland");
    CkJsonObject_UpdateString(json,"shipping_info.address.state","OR");
    CkJsonObject_UpdateString(json,"shipping_info.address.postal_code","97216");
    CkJsonObject_UpdateString(json,"shipping_info.address.country_code","US");
    CkJsonObject_UpdateString(json,"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
    CkJsonObject_UpdateNumber(json,"items[0].quantity","200.0");
    CkJsonObject_UpdateString(json,"items[0].unit_price.currency","USD");
    CkJsonObject_UpdateString(json,"items[0].unit_price.value","5.00");
    CkJsonObject_UpdateString(json,"payment_term.term_type","NET_45");
    CkJsonObject_UpdateString(json,"payment_term.due_date","2016-12-30 PST");
    CkJsonObject_UpdateString(json,"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"
    // 	}

    CkRest_AddHeader(rest,"Authorization",CkStringBuilder_getAsString(sbAuth));
    CkRest_AddHeader(rest,"Content-Type","application/json");

    invoiceId = "INV2-XV4B-736P-PLVN-SZCE";

    sbPath = CkStringBuilder_Create();
    CkStringBuilder_Append(sbPath,"/v1/invoicing/invoices/");
    CkStringBuilder_Append(sbPath,invoiceId);

    // Send the PUT request containign the JSON in the request body, and get the JSON response.
    sbJsonRequest = CkStringBuilder_Create();
    CkJsonObject_EmitSb(json,sbJsonRequest);
    sbJsonResponse = CkStringBuilder_Create();
    success = CkRest_FullRequestSb(rest,"PUT",CkStringBuilder_getAsString(sbPath),sbJsonRequest,sbJsonResponse);
    if (success != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkJsonObject_Dispose(jsonToken);
        CkStringBuilder_Dispose(sbAuth);
        CkRest_Dispose(rest);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbPath);
        CkStringBuilder_Dispose(sbJsonRequest);
        CkStringBuilder_Dispose(sbJsonResponse);
        return;
    }

    CkJsonObject_LoadSb(json,sbJsonResponse);

    printf("Response Status Code = %d\n",CkRest_getResponseStatusCode(rest));

    // Did we get a 200 success response?
    if (CkRest_getResponseStatusCode(rest) != 200) {
        printf("%s\n",CkJsonObject_emit(json));
        printf("Failed.\n");
        CkJsonObject_Dispose(jsonToken);
        CkStringBuilder_Dispose(sbAuth);
        CkRest_Dispose(rest);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbPath);
        CkStringBuilder_Dispose(sbJsonRequest);
        CkStringBuilder_Dispose(sbJsonResponse);
        return;
    }

    // Sample response JSON is shown below.

    // Get some information..
    printf("email: %s\n",CkJsonObject_stringOf(json,"merchant_info.email"));
    printf("business_name: %s\n",CkJsonObject_stringOf(json,"merchant_info.business_name"));

    numItems = CkJsonObject_SizeOfArray(json,"items");
    i = 0;
    while (i < numItems) {
        CkJsonObject_putI(json,i);
        printf("item name: %s\n",CkJsonObject_stringOf(json,"items[i].name"));
        printf("item quantity: %s\n",CkJsonObject_stringOf(json,"items[i].quantity"));
        printf("item currency: %s\n",CkJsonObject_stringOf(json,"items[i].unit_price.currency"));
        printf("item value: %s\n",CkJsonObject_stringOf(json,"items[i].unit_price.value"));
        printf("----\n");
        i = i + 1;
    }

    printf("Success.\n");


    CkJsonObject_Dispose(jsonToken);
    CkStringBuilder_Dispose(sbAuth);
    CkRest_Dispose(rest);
    CkJsonObject_Dispose(json);
    CkStringBuilder_Dispose(sbPath);
    CkStringBuilder_Dispose(sbJsonRequest);
    CkStringBuilder_Dispose(sbJsonResponse);

    }