(C# UWP/WinRT) 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 Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

// 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)
Chilkat.JsonObject jsonToken = new Chilkat.JsonObject();
jsonToken.LoadFile("qa_data/tokens/paypal.json");

// Build the Authorization request header field value.
Chilkat.StringBuilder sbAuth = new Chilkat.StringBuilder();
// 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.
Chilkat.Rest rest = new Chilkat.Rest();
bool bAutoReconnect = true;
bool success = await rest.ConnectAsync("api.sandbox.paypal.com",443,true,bAutoReconnect);
if (success != true) {
    Debug.WriteLine(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..
// ----------------------------------------------------------------------------------------------

// First create the JSON with updated information:

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.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");

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

Chilkat.StringBuilder sbPath = new Chilkat.StringBuilder();
sbPath.Append("/v1/invoicing/invoices/");
sbPath.Append(invoiceId);

// Send the PUT request containign the JSON in the request body, and get the JSON response.
Chilkat.StringBuilder sbJsonRequest = new Chilkat.StringBuilder();
json.EmitSb(sbJsonRequest);
Chilkat.StringBuilder sbJsonResponse = new Chilkat.StringBuilder();
success = await rest.FullRequestSbAsync("PUT",sbPath.GetAsString(),sbJsonRequest,sbJsonResponse);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

json.LoadSb(sbJsonResponse);

Debug.WriteLine("Response Status Code = " + Convert.ToString(rest.ResponseStatusCode));

// Did we get a 200 success response?
if (rest.ResponseStatusCode != 200) {
    Debug.WriteLine(json.Emit());
    Debug.WriteLine("Failed.");
    return;
}

// Sample response JSON is shown below.

// Get some information..
Debug.WriteLine("email: " + json.StringOf("merchant_info.email"));
Debug.WriteLine("business_name: " + json.StringOf("merchant_info.business_name"));

int numItems = json.SizeOfArray("items");
int i = 0;
while (i < numItems) {
    json.I = i;
    Debug.WriteLine("item name: " + json.StringOf("items[i].name"));
    Debug.WriteLine("item quantity: " + json.StringOf("items[i].quantity"));
    Debug.WriteLine("item currency: " + json.StringOf("items[i].unit_price.currency"));
    Debug.WriteLine("item value: " + json.StringOf("items[i].unit_price.value"));
    Debug.WriteLine("----");
    i = i + 1;
}

Debug.WriteLine("Success.");