(C# UWP/WinRT) PayPal List Merchant Invoices

List PayPal invoices.

See also PayPal List Invoices REST API Reference

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

// 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)
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..
// ----------------------------------------------------------------------------------------------

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

// Send the GET request and get the JSON response.
Chilkat.StringBuilder sbJsonResponse = new Chilkat.StringBuilder();
success = await rest.FullRequestNoBodySbAsync("GET","/v1/invoicing/invoices",sbJsonResponse);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.EmitCompact = false;
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.

// Iterate over each invoice and get some information from each..
int numInvoices = json.SizeOfArray("invoices");
int i = 0;
while (i < numInvoices) {
    json.I = i;
    Debug.WriteLine("Invoice ID: " + json.StringOf("invoices[i].id"));
    Debug.WriteLine("Invoice Number: " + json.StringOf("invoices[i].number"));
    Debug.WriteLine("Invoice Status: " + json.StringOf("invoices[i].status"));
    Debug.WriteLine("Shipping First Name: " + json.StringOf("invoices[i].shipping_info.first_name"));
    int j = 0;
    int numBillingInfo = json.SizeOfArray("invoices[i].billing_info");
    while (j < numBillingInfo) {
        json.J = j;
        Debug.WriteLine("billing_info email: " + json.StringOf("invoices[i].billing_info[j].email"));
        j = j + 1;
    }

    int numLinks = json.SizeOfArray("invoices[i].links");
    j = 0;
    while (j < numLinks) {
        json.J = j;
        Debug.WriteLine("link: " + json.StringOf("invoices[i].links[j].href"));
        j = j + 1;
    }

    Debug.WriteLine("----");
    i = i + 1;
}

Debug.WriteLine("Success.");

// 	{ 
// 	  "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"
// 	    }
// 	  ]
// 	}
//