(Swift 2) 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

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

    let http = CkoHttp()
    var success: Bool

    // 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"
    // }

    let json = CkoJsonObject()
    json.UpdateString("chargeId", value: "CHARGE_ID")
    json.UpdateString("refundAmount.amount", value: "14.00")
    json.UpdateString("refundAmount.currencyCode", value: "USD")
    json.UpdateString("softDescriptor", value: "Descriptor")

    // 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.
    let privKey = CkoPrivateKey()
    success = privKey.LoadPemFile("C:/someDir/myAmazonPayPrivateKey.pem")
    if success == false {
        print("\(privKey.LastErrorText)")
        return
    }

    // 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
    var publicKeyId: String? = "SANDBOX-AHEGSJCM3L2S637RBGABLAFW"
    success = http.SetAuthPrivateKey(publicKeyId, privKey: privKey)
    if success == false {
        print("\(http.LastErrorText)")
        return
    }

    // 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

    http.Accept = "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
    var resp: CkoHttpResponse? = http.PostJson3("https://pay-api.amazon.eu/sandbox/v2/refunds/", contentType: "application/json", json: json)
    if http.LastMethodSuccess == false {
        print("\(http.LastErrorText)")
        return
    }

    let sbResponseBody = CkoStringBuilder()
    resp!.GetBodySb(sbResponseBody)
    let jResp = CkoJsonObject()
    jResp.LoadSb(sbResponseBody)
    jResp.EmitCompact = false

    // If the status code is not equal to 201, this will display error information.
    print("Response Body:")
    print("\(jResp.Emit())")

    var respStatusCode: Int = resp!.StatusCode.intValue
    print("Response Status Code = \(respStatusCode)")
    if respStatusCode != 201 {
        print("Failed.")
        resp = nil
        return
    }

    resp = nil

    // 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

    var refundId: String? = jResp.StringOf("refundId")
    var chargeId: String? = jResp.StringOf("chargeId")
    var refundAmountAmount: String? = jResp.StringOf("refundAmount.amount")
    var refundAmountCurrencyCode: String? = jResp.StringOf("refundAmount.currencyCode")
    var softDescriptor: String? = jResp.StringOf("softDescriptor")
    var creationTimestamp: String? = jResp.StringOf("creationTimestamp")
    var statusDetailsState: String? = jResp.StringOf("statusDetails.state")
    var statusDetailsReasonCode: String? = jResp.StringOf("statusDetails.reasonCode")
    var statusDetailsReasonDescription: String? = jResp.StringOf("statusDetails.reasonDescription")
    var statusDetailsLastUpdatedTimestamp: String? = jResp.StringOf("statusDetails.lastUpdatedTimestamp")
    var releaseEnvironment: String? = jResp.StringOf("releaseEnvironment")

}