(Swift 2) Amazon Pay - Get Charge

See more Amazon Pay Examples

Get Charge details such as charge amount and authorization state. Use this operation to determine if authorization or capture was successful.

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/charge.html#get-charge

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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/charges/:chargeId"
    //  -H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
    //  -H "x-amz-pay-date:20201012T235046Z"
    //  -X GET

    // 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
    // Authorization

    http.Accept = "application/json"

    var respStatusCode: Int = 0

    let sbResponseBody = CkoStringBuilder()
    success = http.SetUrlVar("chargeId", value: "P21-1111111-1111111")
    // To use the live system, replace "sandbox" with "live" in the URL passed to QuickGetSb.
    // Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
    success = http.QuickGetSb("https://pay-api.amazon.eu/sandbox/v2/charges/{$chargeId}", sbContent: sbResponseBody)
    if success == false {
        // If the LastStatus is not equal to 0, then we received a response, but it was an error response.
        respStatusCode = http.LastStatus.intValue
        if respStatusCode != 0 {
            print("Response Status Code = \(respStatusCode)")
            print("Response body:")
            print("\(http.LastResponseBody)")
        }
        else {
            print("\(http.LastErrorText)")
        }

        return
    }

    let jResp = CkoJsonObject()
    jResp.LoadSb(sbResponseBody)
    jResp.EmitCompact = false

    print("Response Body:")
    print("\(jResp.Emit())")

    respStatusCode = http.LastStatus.intValue
    print("Response Status Code = \(respStatusCode)")
    // We expect a 200 status code for success.
    // Note: Some Amazon Pay API calls return 200 for success, others return 201.
    if respStatusCode != 200 {
        print("Failed.")
        return
    }

    // 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": "Descriptor",
    //      "merchantMetadata": null,
    //      "providerMetadata": {
    //          "providerReferenceId": null
    //      },
    //      "statusDetails":{
    //          "state": "Captured",
    //          "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

    var chargeId: String? = jResp.StringOf("chargeId")
    var chargePermissionId: String? = jResp.StringOf("chargePermissionId")
    var chargeAmountAmount: String? = jResp.StringOf("chargeAmount.amount")
    var chargeAmountCurrencyCode: String? = jResp.StringOf("chargeAmount.currencyCode")
    var captureAmountAmount: String? = jResp.StringOf("captureAmount.amount")
    var captureAmountCurrencyCode: String? = jResp.StringOf("captureAmount.currencyCode")
    var refundedAmountAmount: String? = jResp.StringOf("refundedAmount.amount")
    var refundedAmountCurrencyCode: String? = jResp.StringOf("refundedAmount.currencyCode")
    var convertedAmount: String? = jResp.StringOf("convertedAmount")
    var conversionRate: String? = jResp.StringOf("conversionRate")
    var softDescriptor: String? = jResp.StringOf("softDescriptor")
    var merchantMetadata: String? = jResp.StringOf("merchantMetadata")
    var providerMetadataProviderReferenceId: String? = jResp.StringOf("providerMetadata.providerReferenceId")
    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 creationTimestamp: String? = jResp.StringOf("creationTimestamp")
    var expirationTimestamp: String? = jResp.StringOf("expirationTimestamp")
    var releaseEnvironment: String? = jResp.StringOf("releaseEnvironment")

}