Chilkat Examples

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DataFlex Web API Examples

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(DataFlex) Amazon Pay - Cancel Charge

See more Amazon Pay Examples

Moves Charge to Canceled state and releases any authorized payments.

For more information, see https://developer.amazon.com/docs/amazon-pay-api-v2/charge.html#cancel-charge

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoHttp
    Boolean iSuccess
    Handle hoJson
    Variant vSbRequestBody
    Handle hoSbRequestBody
    Variant vPrivKey
    Handle hoPrivKey
    String sPublicKeyId
    Variant vResp
    Handle hoResp
    Variant vSbResponseBody
    Handle hoSbResponseBody
    Handle hoJResp
    Integer iRespStatusCode
    String sChargeId
    String sChargePermissionId
    String sChargeAmountAmount
    String sChargeAmountCurrencyCode
    String sCaptureAmountAmount
    String sCaptureAmountCurrencyCode
    String sRefundedAmountAmount
    String sRefundedAmountCurrencyCode
    String sConvertedAmount
    String sConversionRate
    String sSoftDescriptor
    String sMerchantMetadata
    String sProviderMetadataProviderReferenceId
    String sStatusDetailsState
    String sStatusDetailsReasonCode
    String sStatusDetailsReasonDescription
    String sStatusDetailsLastUpdatedTimestamp
    String sCreationTimestamp
    String sExpirationTimestamp
    String sReleaseEnvironment
    String sTemp1
    Boolean bTemp1

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End

    // Implements the following CURL command:

    // curl "https://pay-api.amazon.com/:version/charges/:chargeId/cancel" \
    // -X DELETE
    // -H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
    // -H "x-amz-pay-date:20201012T235046Z"
    // -d '{
    //     "cancellationReason": "REASON DESCRIPTION"
    // }'

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

    // Use this online tool to generate code from sample JSON:
    // Generate Code to Create JSON

    // The following JSON is sent in the request body.

    // {
    //   "cancellationReason": "REASON DESCRIPTION"
    // }

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get ComUpdateString Of hoJson "cancellationReason" "REASON DESCRIPTION" To iSuccess

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbRequestBody
    If (Not(IsComObjectCreated(hoSbRequestBody))) Begin
        Send CreateComObject of hoSbRequestBody
    End
    Get pvComObject of hoSbRequestBody to vSbRequestBody
    Get ComEmitSb Of hoJson vSbRequestBody To iSuccess

    // Load your Amazon Pay private key.  
    // There are many other ways to load private keys into the Chilkat private key object, such as from different formats,
    // or from in-memory strings or bytes.
    Get Create (RefClass(cComChilkatPrivateKey)) To hoPrivKey
    If (Not(IsComObjectCreated(hoPrivKey))) Begin
        Send CreateComObject of hoPrivKey
    End
    Get ComLoadPemFile Of hoPrivKey "C:/someDir/myAmazonPayPrivateKey.pem" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Provide your Amazon Pay private key and Public Key ID 
    // Use your public key ID here.  It must be the one associated with the private key.
    // Note: The SetAuthPrivateKey method was added in Chilkat v9.5.0.89
    Move "SANDBOX-AHEGSJCM3L2S637RBGABLAFW" To sPublicKeyId
    Get pvComObject of hoPrivKey to vPrivKey
    Get ComSetAuthPrivateKey Of hoHttp sPublicKeyId vPrivKey To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Note: When the private key is provided as shown above, Chilkat will automatically add the required x-amz-pay-* headers to the HTTP request,
    // and will also sign the request.  Nothing more is needed.
    // Chilkat automatically generates and adds the following headers:
    // 
    // x-amz-pay-date
    // x-amz-pay-host
    // x-amz-pay-region
    // Authorization

    Set ComAccept Of hoHttp To "application/json"

    // Use the actual chargeId here:
    Get ComSetUrlVar Of hoHttp "chargeId" "bd504926-f659-4ad7-a1a9-9a747aaf5275" To iSuccess
    // To use the live system, replace "sandbox" with "live" in the URL passed to PTextSb.
    // Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
    Get pvComObject of hoSbRequestBody to vSbRequestBody
    Get ComPTextSb Of hoHttp "DELETE" "https://pay-api.amazon.eu/sandbox/v2/charges/{$chargeId}/cancel" vSbRequestBody "utf-8" "application/json" False False To vResp
    If (IsComObject(vResp)) Begin
        Get Create (RefClass(cComChilkatHttpResponse)) To hoResp
        Set pvComObject Of hoResp To vResp
    End
    Get ComLastMethodSuccess Of hoHttp To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbResponseBody
    If (Not(IsComObjectCreated(hoSbResponseBody))) Begin
        Send CreateComObject of hoSbResponseBody
    End
    Get pvComObject of hoSbResponseBody to vSbResponseBody
    Get ComGetBodySb Of hoResp vSbResponseBody To iSuccess
    Get Create (RefClass(cComChilkatJsonObject)) To hoJResp
    If (Not(IsComObjectCreated(hoJResp))) Begin
        Send CreateComObject of hoJResp
    End
    Get pvComObject of hoSbResponseBody to vSbResponseBody
    Get ComLoadSb Of hoJResp vSbResponseBody To iSuccess
    Set ComEmitCompact Of hoJResp To False

    // If the status code is not equal to 200, this will display error information.
    Showln "Response Body:"
    Get ComEmit Of hoJResp To sTemp1
    Showln sTemp1

    Get ComStatusCode Of hoResp To iRespStatusCode
    Showln "Response Status Code = " iRespStatusCode
    If (iRespStatusCode <> 200) Begin
        Showln "Failed."
        Send Destroy of hoResp
        Procedure_Return
    End

    Send Destroy of hoResp

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "chargeId": "P21-1111111-1111111-C111111",
    //   "chargePermissionId": "P21-1111111-1111111",
    //   "chargeAmount": {
    //     "amount": "14.00",
    //     "currencyCode": "USD"
    //   },
    //   "captureAmount": {
    //     "amount": "14.00",
    //     "currencyCode": "USD"
    //   },
    //   "refundedAmount": {
    //     "amount": "0.00",
    //     "currencyCode": "USD"
    //   },
    //   "convertedAmount": "14.00",
    //   "conversionRate": "1.00",
    //   "softDescriptor": "SOFT DESCRIPTOR",
    //   "merchantMetadata": null,
    //   "providerMetadata": {
    //     "providerReferenceId": null
    //   },
    //   "statusDetails": {
    //     "state": "Canceled",
    //     "reasonCode": null,
    //     "reasonDescription": null,
    //     "lastUpdatedTimestamp": "20190714T155300Z"
    //   },
    //   "creationTimestamp": "20190714T155300Z",
    //   "expirationTimestamp": "20190715T155300Z",
    //   "releaseEnvironment": "Sandbox"
    // }

    // Sample code for parsing the JSON response...
    // Use the following online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    Get ComStringOf Of hoJResp "chargeId" To sChargeId
    Get ComStringOf Of hoJResp "chargePermissionId" To sChargePermissionId
    Get ComStringOf Of hoJResp "chargeAmount.amount" To sChargeAmountAmount
    Get ComStringOf Of hoJResp "chargeAmount.currencyCode" To sChargeAmountCurrencyCode
    Get ComStringOf Of hoJResp "captureAmount.amount" To sCaptureAmountAmount
    Get ComStringOf Of hoJResp "captureAmount.currencyCode" To sCaptureAmountCurrencyCode
    Get ComStringOf Of hoJResp "refundedAmount.amount" To sRefundedAmountAmount
    Get ComStringOf Of hoJResp "refundedAmount.currencyCode" To sRefundedAmountCurrencyCode
    Get ComStringOf Of hoJResp "convertedAmount" To sConvertedAmount
    Get ComStringOf Of hoJResp "conversionRate" To sConversionRate
    Get ComStringOf Of hoJResp "softDescriptor" To sSoftDescriptor
    Get ComStringOf Of hoJResp "merchantMetadata" To sMerchantMetadata
    Get ComStringOf Of hoJResp "providerMetadata.providerReferenceId" To sProviderMetadataProviderReferenceId
    Get ComStringOf Of hoJResp "statusDetails.state" To sStatusDetailsState
    Get ComStringOf Of hoJResp "statusDetails.reasonCode" To sStatusDetailsReasonCode
    Get ComStringOf Of hoJResp "statusDetails.reasonDescription" To sStatusDetailsReasonDescription
    Get ComStringOf Of hoJResp "statusDetails.lastUpdatedTimestamp" To sStatusDetailsLastUpdatedTimestamp
    Get ComStringOf Of hoJResp "creationTimestamp" To sCreationTimestamp
    Get ComStringOf Of hoJResp "expirationTimestamp" To sExpirationTimestamp
    Get ComStringOf Of hoJResp "releaseEnvironment" To sReleaseEnvironment


End_Procedure

 

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