(DataFlex) Amazon Pay - Create Refund

See more Amazon Pay Examples

Initiate a full or partial refund for a charge.

Note: This example requires Chilkat v9.5.0.89 or later. Contact support@chilkatsoft.com to get a v9.5.0.89 pre-release for testing.

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

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoHttp
    Boolean iSuccess
    Variant vJson
    Handle hoJson
    Variant vPrivKey
    Handle hoPrivKey
    String sPublicKeyId
    Variant vResp
    Handle hoResp
    Variant vSbResponseBody
    Handle hoSbResponseBody
    Handle hoJResp
    Integer iRespStatusCode
    String sRefundId
    String sChargeId
    String sRefundAmountAmount
    String sRefundAmountCurrencyCode
    String sSoftDescriptor
    String sCreationTimestamp
    String sStatusDetailsState
    String sStatusDetailsReasonCode
    String sStatusDetailsReasonDescription
    String sStatusDetailsLastUpdatedTimestamp
    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/refunds/" \
    // -X POST
    // -H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
    // -H "x-amz-pay-date:20201012T235046Z"
    // -H "x-amz-pay-idempotency-key:AVLo5tI10BHgEk2jEXAMPLEKEY"
    // -d '{
    //     "chargeId": "CHARGE_ID",
    //     "refundAmount": {
    //         "amount": "14.00",
    //         "currencyCode": "USD"
    //     },
    //     "softDescriptor": "Descriptor"
    // }'

    // 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.

    // {
    //     "chargeId": "CHARGE_ID",
    //     "refundAmount": {
    //         "amount": "14.00",
    //         "currencyCode": "USD"
    //     },
    //     "softDescriptor": "Descriptor"
    // }

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get ComUpdateString Of hoJson "chargeId" "CHARGE_ID" To iSuccess
    Get ComUpdateString Of hoJson "refundAmount.amount" "14.00" To iSuccess
    Get ComUpdateString Of hoJson "refundAmount.currencyCode" "USD" To iSuccess
    Get ComUpdateString Of hoJson "softDescriptor" "Descriptor" 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
    // x-amz-pay-idempotency-key
    // Authorization

    Set ComAccept Of hoHttp To "application/json"

    // To use the live system, replace "sandbox" with "live" in the URL passed to PostJson3.
    // Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
    Get pvComObject of hoJson to vJson
    Get ComPostJson3 Of hoHttp "https://pay-api.amazon.eu/sandbox/v2/refunds/" "application/json" vJson 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 201, 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 <> 201) 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)

    // {
    //      "refundId": "S01-5105180-3221187-R022311",
    //      "chargeId": "S01-5105180-3221187-C056351",
    //      "refundAmount": {
    //          "amount": "14.00",
    //          "currencyCode": "USD"
    //      },
    //      "softDescriptor": "Descriptor",
    //      "creationTimestamp": "20190714T155300Z",
    //      "statusDetails": {
    //          "state": "RefundInitiated",
    //          "reasonCode": null,
    //          "reasonDescription": null,
    //          "lastUpdatedTimestamp": "20190714T155300Z"
    //      },
    //      "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 "refundId" To sRefundId
    Get ComStringOf Of hoJResp "chargeId" To sChargeId
    Get ComStringOf Of hoJResp "refundAmount.amount" To sRefundAmountAmount
    Get ComStringOf Of hoJResp "refundAmount.currencyCode" To sRefundAmountCurrencyCode
    Get ComStringOf Of hoJResp "softDescriptor" To sSoftDescriptor
    Get ComStringOf Of hoJResp "creationTimestamp" To sCreationTimestamp
    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 "releaseEnvironment" To sReleaseEnvironment


End_Procedure