(Go) Amazon Pay - Update Charge Permission

See more Amazon Pay Examples

Update the Charge Permission with your external order metadata or the recurringMetadata.

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

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

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

    http := chilkat.NewHttp()
    var success bool

    // Implements the following CURL command:

    // curl "https://pay-api.amazon.com/:version/chargePermissions/:chargePermissionId" \
    // -X PATCH
    // -H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
    // -H "x-amz-pay-date:20201012T235046Z"
    // -d '{
    //     "merchantMetadata": {
    //         "merchantReferenceId": "32-41-323141-32",
    //         "merchantStoreName": "AmazonTestStoreFront",
    //         "noteToBuyer": "Some Note to buyer",
    //         "customInformation": ""    
    //      }  
    // }'

    // 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.

    // {
    //     "merchantMetadata": {
    //         "merchantReferenceId": "32-41-323141-32",
    //         "merchantStoreName": "AmazonTestStoreFront",
    //         "noteToBuyer": "Some Note to buyer",
    //         "customInformation": ""    
    //      }  
    // }

    json := chilkat.NewJsonObject()
    json.UpdateString("merchantMetadata.merchantReferenceId","32-41-323141-32")
    json.UpdateString("merchantMetadata.merchantStoreName","AmazonTestStoreFront")
    json.UpdateString("merchantMetadata.noteToBuyer","Some Note to buyer")
    json.UpdateString("merchantMetadata.customInformation","")

    sbRequestBody := chilkat.NewStringBuilder()
    json.EmitSb(sbRequestBody)

    // 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.
    privKey := chilkat.NewPrivateKey()
    success = privKey.LoadPemFile("C:/someDir/myAmazonPayPrivateKey.pem")
    if success == false {
        fmt.Println(privKey.LastErrorText())
        http.DisposeHttp()
        json.DisposeJsonObject()
        sbRequestBody.DisposeStringBuilder()
        privKey.DisposePrivateKey()
        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
    publicKeyId := "SANDBOX-AHEGSJCM3L2S637RBGABLAFW"
    success = http.SetAuthPrivateKey(publicKeyId,privKey)
    if success == false {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        json.DisposeJsonObject()
        sbRequestBody.DisposeStringBuilder()
        privKey.DisposePrivateKey()
        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.SetAccept("application/json")

    success = http.SetUrlVar("chargePermissionId","CHARGE_PERMISSION_ID")
    // 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
    resp := http.PTextSb("PATCH","https://pay-api.amazon.eu/sandbox/v2/chargePermissions/{$chargePermissionId}",sbRequestBody,"utf-8","application/json",false,false)
    if http.LastMethodSuccess() == false {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        json.DisposeJsonObject()
        sbRequestBody.DisposeStringBuilder()
        privKey.DisposePrivateKey()
        return
    }

    sbResponseBody := chilkat.NewStringBuilder()
    resp.GetBodySb(sbResponseBody)
    jResp := chilkat.NewJsonObject()
    jResp.LoadSb(sbResponseBody)
    jResp.SetEmitCompact(false)

    // If the status code is not equal to 200, this will display error information.
    fmt.Println("Response Body:")
    fmt.Println(*jResp.Emit())

    respStatusCode := resp.StatusCode()
    fmt.Println("Response Status Code = ", respStatusCode)
    if respStatusCode != 200 {
        fmt.Println("Failed.")
        resp.DisposeHttpResponse()
        http.DisposeHttp()
        json.DisposeJsonObject()
        sbRequestBody.DisposeStringBuilder()
        privKey.DisposePrivateKey()
        sbResponseBody.DisposeStringBuilder()
        jResp.DisposeJsonObject()
        return
    }

    resp.DisposeHttpResponse()

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

    // {
    //     "chargePermissionId": "chargePermission-1",
    //     "chargePermissionReferenceId": null,
    //     "buyer": {
    //         "buyerId": "buyerId",
    //         "name": "name-1",
    //         "email": "name@amazon.com",
    //         "phoneNumber": "800-000-0000",
    //         "primeMembershipTypes": null
    //     },
    //     "releaseEnvironment": "Live",
    //     "shippingAddress": {  // Null for PayOnly product type
    //         "name": "Work",
    //         "addressLine1": "440 Terry Ave",
    //         "addressLine2": "",
    //         "addressLine3": "",
    //         "city": "Seattle",
    //         "county": "King",
    //         "district": "Seattle",
    //         "stateOrRegion": "WA",
    //         "postalCode": "98121",
    //         "countryCode": "US",
    //         "phoneNumber": "800-000-0000"
    //     },
    //     "billingAddress": {  // Only available in EU or for PayOnly product type
    //         "name": "Work",
    //         "addressLine1": "440 Terry Ave",
    //         "addressLine2": "",
    //         "addressLine3": "",
    //         "city": "Seattle",
    //         "county": "King",
    //         "district": "Seattle",
    //         "stateOrRegion": "WA",
    //         "postalCode": "98121",
    //         "countryCode": "US",
    //         "phoneNumber": "800-000-0000"
    //     },
    //     "paymentPreferences": [
    //     {
    //         "paymentDescriptor": null
    //     }],
    //     "statusDetails": {
    //         "state": "Chargeable",
    //         "reasons": null,
    //         "lastUpdatedTimestamp": "20190714T155300Z"
    //     },
    //     "creationTimestamp": "20190714T155300Z",
    //     "expirationTimestamp": "20190715T155300Z",
    //     "merchantMetadata": {
    //         "merchantReferenceId": "123-77-876", 
    //         "merchantStoreName": "AmazonTestStoreFront",
    //         "noteToBuyer": "merchantNoteForBuyer",
    //         "customInformation": "This is custom information"  
    //     },
    //     "platformId": "SPId",
    //     "limits": {
    //         "amountLimit": {
    //             "amount": "14.00",
    //             "currencyCode": "USD"
    //         },
    //         "amountBalance": {
    //             "amount": "14.00",
    //             "currencyCode": "USD"
    //         }
    //     },
    //     "presentmentCurrency": "USD"
    // }

    // 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 paymentDescriptor *string = new(string)

    chargePermissionId := jResp.StringOf("chargePermissionId")
    chargePermissionReferenceId := jResp.StringOf("chargePermissionReferenceId")
    buyerBuyerId := jResp.StringOf("buyer.buyerId")
    buyerName := jResp.StringOf("buyer.name")
    buyerEmail := jResp.StringOf("buyer.email")
    buyerPhoneNumber := jResp.StringOf("buyer.phoneNumber")
    buyerPrimeMembershipTypes := jResp.StringOf("buyer.primeMembershipTypes")
    releaseEnvironment := jResp.StringOf("releaseEnvironment")
    shippingAddressName := jResp.StringOf("shippingAddress.name")
    shippingAddressAddressLine1 := jResp.StringOf("shippingAddress.addressLine1")
    shippingAddressAddressLine2 := jResp.StringOf("shippingAddress.addressLine2")
    shippingAddressAddressLine3 := jResp.StringOf("shippingAddress.addressLine3")
    shippingAddressCity := jResp.StringOf("shippingAddress.city")
    shippingAddressCounty := jResp.StringOf("shippingAddress.county")
    shippingAddressDistrict := jResp.StringOf("shippingAddress.district")
    shippingAddressStateOrRegion := jResp.StringOf("shippingAddress.stateOrRegion")
    shippingAddressPostalCode := jResp.StringOf("shippingAddress.postalCode")
    shippingAddressCountryCode := jResp.StringOf("shippingAddress.countryCode")
    shippingAddressPhoneNumber := jResp.StringOf("shippingAddress.phoneNumber")
    billingAddressName := jResp.StringOf("billingAddress.name")
    billingAddressAddressLine1 := jResp.StringOf("billingAddress.addressLine1")
    billingAddressAddressLine2 := jResp.StringOf("billingAddress.addressLine2")
    billingAddressAddressLine3 := jResp.StringOf("billingAddress.addressLine3")
    billingAddressCity := jResp.StringOf("billingAddress.city")
    billingAddressCounty := jResp.StringOf("billingAddress.county")
    billingAddressDistrict := jResp.StringOf("billingAddress.district")
    billingAddressStateOrRegion := jResp.StringOf("billingAddress.stateOrRegion")
    billingAddressPostalCode := jResp.StringOf("billingAddress.postalCode")
    billingAddressCountryCode := jResp.StringOf("billingAddress.countryCode")
    billingAddressPhoneNumber := jResp.StringOf("billingAddress.phoneNumber")
    statusDetailsState := jResp.StringOf("statusDetails.state")
    statusDetailsReasons := jResp.StringOf("statusDetails.reasons")
    statusDetailsLastUpdatedTimestamp := jResp.StringOf("statusDetails.lastUpdatedTimestamp")
    creationTimestamp := jResp.StringOf("creationTimestamp")
    expirationTimestamp := jResp.StringOf("expirationTimestamp")
    merchantMetadataMerchantReferenceId := jResp.StringOf("merchantMetadata.merchantReferenceId")
    merchantMetadataMerchantStoreName := jResp.StringOf("merchantMetadata.merchantStoreName")
    merchantMetadataNoteToBuyer := jResp.StringOf("merchantMetadata.noteToBuyer")
    merchantMetadataCustomInformation := jResp.StringOf("merchantMetadata.customInformation")
    platformId := jResp.StringOf("platformId")
    limitsAmountLimitAmount := jResp.StringOf("limits.amountLimit.amount")
    limitsAmountLimitCurrencyCode := jResp.StringOf("limits.amountLimit.currencyCode")
    limitsAmountBalanceAmount := jResp.StringOf("limits.amountBalance.amount")
    limitsAmountBalanceCurrencyCode := jResp.StringOf("limits.amountBalance.currencyCode")
    presentmentCurrency := jResp.StringOf("presentmentCurrency")
    i := 0
    count_i := jResp.SizeOfArray("paymentPreferences")
    for i < count_i {
        jResp.SetI(i)
        paymentDescriptor = jResp.StringOf("paymentPreferences[i].paymentDescriptor")
        i = i + 1
    }


    http.DisposeHttp()
    json.DisposeJsonObject()
    sbRequestBody.DisposeStringBuilder()
    privKey.DisposePrivateKey()
    sbResponseBody.DisposeStringBuilder()
    jResp.DisposeJsonObject()