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C#

PayPal Search for Invoices

See more PayPal Examples

Search PayPal invoices.

See also SearchInvoices

Chilkat C# Downloads

C#
bool success = false;

//  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;
success = rest.Connect("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..
//  ----------------------------------------------------------------------------------------------

//  Create JSON to specify the search
Chilkat.JsonObject json = new Chilkat.JsonObject();
json.EmitCompact = false;
json.AppendString("start_invoice_date","2016-01-01 PST");
json.AppendString("end_invoice_date","2016-11-16 PST");
json.AppendInt("page",0);
json.AppendInt("page_size",10);
json.AppendBool("total_count_required",true);

Debug.WriteLine(json.Emit());

//  The JSON by the above code:

//  	{
//  	  "start_invoice_date": "2016-01-01 PST",
//  	  "end_invoice_date": "2016-11-16 PST",
//  	  "page": 0,
//  	  "page_size": 10,
//  	  "total_count_required": true
//  	}

//  Send the POST equivalent to this CURL command:

//  	curl -v -X POST https://api.sandbox.paypal.com/v1/invoicing/search/ \
//  	-H "Content-Type:application/json" \
//  	-H "Authorization: Bearer Access-Token" \
//  	-d '{ invoice JSON goes here }'

json.EmitCompact = true;
Chilkat.StringBuilder sbRequestBody = new Chilkat.StringBuilder();
Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();

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

success = rest.FullRequestSb("POST","/v1/invoicing/search",sbRequestBody,sbResponseBody);
if (success != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

//  We should have some sort of JSON response.  It could be successful, or an error.
Chilkat.JsonObject jsonResponse = new Chilkat.JsonObject();
jsonResponse.EmitCompact = false;
jsonResponse.LoadSb(sbResponseBody);

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

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

//  Sample response JSON is shown below.

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

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

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

Debug.WriteLine("Success.");

//  A successful response looks like this:

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