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B4X

PayPal Search for Invoices

See more PayPal Examples

Search PayPal invoices.

See also SearchInvoices

Chilkat B4X Downloads

B4X
Dim success As Boolean = 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)
Dim jsonToken As ChilkatJsonObject
jsonToken.Initialize
jsonToken.LoadFile("qa_data/tokens/paypal.json")

'  Build the Authorization request header field value.
Dim sbAuth As ChilkatStringBuilder
sbAuth.Initialize
'  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.
Dim rest As ChilkatRest
rest.Initialize("rest")
Dim bAutoReconnect As Boolean = True
success = rest.Connect("api.sandbox.paypal.com", 443, True, bAutoReconnect)
If success <> True Then
    Log(rest.LastErrorText)
    Return
End If


'  ----------------------------------------------------------------------------------------------
'  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
Dim json As ChilkatJsonObject
json.Initialize
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)

Log(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
Dim sbRequestBody As ChilkatStringBuilder
sbRequestBody.Initialize
Dim sbResponseBody As ChilkatStringBuilder
sbResponseBody.Initialize

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 Then
    Log(rest.LastErrorText)
    Return
End If


'  We should have some sort of JSON response.  It could be successful, or an error.
Dim jsonResponse As ChilkatJsonObject
jsonResponse.Initialize
jsonResponse.EmitCompact = False
jsonResponse.LoadSb(sbResponseBody)

Log("Response Status Code = " & rest.ResponseStatusCode)

'  Did we get a 200 success response?
If rest.ResponseStatusCode <> 200 Then
    '  Show the JSON response body
    Log(jsonResponse.Emit)
    Log("Failed.")
    Return
End If


'  Sample response JSON is shown below.

'  Iterate over each invoice and get some information from each..
Dim numInvoices As Int = jsonResponse.SizeOfArray("invoices")
Dim i As Int = 0
Do While i < numInvoices
    jsonResponse.I = i
    Log("Invoice ID: " & jsonResponse.StringOf("invoices[i].id"))
    Log("Shipping First Name: " & jsonResponse.StringOf("invoices[i].shipping_info.first_name"))
    Dim j As Int = 0
    Dim numBillingInfo As Int = jsonResponse.SizeOfArray("invoices[i].billing_info")
    Do While j < numBillingInfo
        jsonResponse.J = j
        Log("billing_info email: " & jsonResponse.StringOf("invoices[i].billing_info[j].email"))
        j = j + 1
    Loop
    Dim numLinks As Int = jsonResponse.SizeOfArray("invoices[i].links")
    j = 0
    Do While j < numLinks
        jsonResponse.J = j
        Log("link: " & jsonResponse.StringOf("invoices[i].links[j].href"))
        j = j + 1
    Loop
    Log("----")
    i = i + 1
Loop

Log("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"
'          }
'        ]
'      }
'    ]
'  }
'