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DataFlex Web API Examples

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(DataFlex) PayPal Search for Invoices

Search PayPal invoices.

See also SearchInvoices

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoJsonToken
    Handle hoSbAuth
    Handle hoRest
    Boolean iBAutoReconnect
    Boolean iSuccess
    Handle hoJson
    Variant vSbRequestBody
    Handle hoSbRequestBody
    Variant vSbResponseBody
    Handle hoSbResponseBody
    Handle hoJsonResponse
    Integer iNumInvoices
    Integer i
    Integer j
    Integer iNumBillingInfo
    Integer iNumLinks
    String sTemp1
    Integer iTemp1

    // 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)
    Get Create (RefClass(cComChilkatJsonObject)) To hoJsonToken
    If (Not(IsComObjectCreated(hoJsonToken))) Begin
        Send CreateComObject of hoJsonToken
    End
    Get ComLoadFile Of hoJsonToken "qa_data/tokens/paypal.json" To iSuccess

    // Build the Authorization request header field value.
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbAuth
    If (Not(IsComObjectCreated(hoSbAuth))) Begin
        Send CreateComObject of hoSbAuth
    End
    // token_type should be "Bearer"
    Get ComStringOf Of hoJsonToken "token_type" To sTemp1
    Get ComAppend Of hoSbAuth sTemp1 To iSuccess
    Get ComAppend Of hoSbAuth " " To iSuccess
    Get ComStringOf Of hoJsonToken "access_token" To sTemp1
    Get ComAppend Of hoSbAuth sTemp1 To iSuccess

    // 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.
    Get Create (RefClass(cComChilkatRest)) To hoRest
    If (Not(IsComObjectCreated(hoRest))) Begin
        Send CreateComObject of hoRest
    End
    Move True To iBAutoReconnect
    Get ComConnect Of hoRest "api.sandbox.paypal.com" 443 True iBAutoReconnect To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // ----------------------------------------------------------------------------------------------
    // 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
    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Set ComEmitCompact Of hoJson To False
    Get ComAppendString Of hoJson "start_invoice_date" "2016-01-01 PST" To iSuccess
    Get ComAppendString Of hoJson "end_invoice_date" "2016-11-16 PST" To iSuccess
    Get ComAppendInt Of hoJson "page" 0 To iSuccess
    Get ComAppendInt Of hoJson "page_size" 10 To iSuccess
    Get ComAppendBool Of hoJson "total_count_required" True To iSuccess

    Get ComEmit Of hoJson To sTemp1
    Showln sTemp1

    // 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 }'

    Set ComEmitCompact Of hoJson To True
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbRequestBody
    If (Not(IsComObjectCreated(hoSbRequestBody))) Begin
        Send CreateComObject of hoSbRequestBody
    End
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbResponseBody
    If (Not(IsComObjectCreated(hoSbResponseBody))) Begin
        Send CreateComObject of hoSbResponseBody
    End

    Get ComAddHeader Of hoRest "Content-Type" "application/json" To iSuccess
    Get ComGetAsString Of hoSbAuth To sTemp1
    Get ComAddHeader Of hoRest "Authorization" sTemp1 To iSuccess
    Get pvComObject of hoSbRequestBody to vSbRequestBody
    Get ComEmitSb Of hoJson vSbRequestBody To iSuccess

    Get pvComObject of hoSbRequestBody to vSbRequestBody
    Get pvComObject of hoSbResponseBody to vSbResponseBody
    Get ComFullRequestSb Of hoRest "POST" "/v1/invoicing/search" vSbRequestBody vSbResponseBody To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoRest To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // We should have some sort of JSON response.  It could be successful, or an error.
    Get Create (RefClass(cComChilkatJsonObject)) To hoJsonResponse
    If (Not(IsComObjectCreated(hoJsonResponse))) Begin
        Send CreateComObject of hoJsonResponse
    End
    Set ComEmitCompact Of hoJsonResponse To False
    Get pvComObject of hoSbResponseBody to vSbResponseBody
    Get ComLoadSb Of hoJsonResponse vSbResponseBody To iSuccess

    Get ComResponseStatusCode Of hoRest To iTemp1
    Showln "Response Status Code = " iTemp1

    // Did we get a 200 success response?
    Get ComResponseStatusCode Of hoRest To iTemp1
    If (iTemp1 <> 200) Begin
        // Show the JSON response body
        Get ComEmit Of hoJsonResponse To sTemp1
        Showln sTemp1
        Showln "Failed."
        Procedure_Return
    End

    // Sample response JSON is shown below.

    // Iterate over each invoice and get some information from each..
    Get ComSizeOfArray Of hoJsonResponse "invoices" To iNumInvoices
    Move 0 To i
    While (i < iNumInvoices)
        Set ComI Of hoJsonResponse To i
        Get ComStringOf Of hoJsonResponse "invoices[i].id" To sTemp1
        Showln "Invoice ID: " sTemp1
        Get ComStringOf Of hoJsonResponse "invoices[i].shipping_info.first_name" To sTemp1
        Showln "Shipping First Name: " sTemp1
        Move 0 To j
        Get ComSizeOfArray Of hoJsonResponse "invoices[i].billing_info" To iNumBillingInfo
        While (j < iNumBillingInfo)
            Set ComJ Of hoJsonResponse To j
            Get ComStringOf Of hoJsonResponse "invoices[i].billing_info[j].email" To sTemp1
            Showln "billing_info email: " sTemp1
            Move j + 1 To j
        Loop

        Get ComSizeOfArray Of hoJsonResponse "invoices[i].links" To iNumLinks
        Move 0 To j
        While (j < iNumLinks)
            Set ComJ Of hoJsonResponse To j
            Get ComStringOf Of hoJsonResponse "invoices[i].links[j].href" To sTemp1
            Showln "link: " sTemp1
            Move j + 1 To j
        Loop

        Showln "----"
        Move i + 1 To i
    Loop

    Showln "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"
    //         }
    //       ]
    //     }
    //   ]
    // }
    // 


End_Procedure

 

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