Go Requires Chilkat v11.0.0+
Go
Amazon Pay - Cancel Charge
See more Amazon Pay Examples
Moves Charge to Canceled state and releases any authorized payments.Chilkat Go Downloads
success := false
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
http := chilkat.NewHttp()
// 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"
// }
json := chilkat.NewJsonObject()
json.UpdateString("cancellationReason","REASON DESCRIPTION")
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.
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")
// Use the actual chargeId here:
success = http.SetUrlVar("chargeId","bd504926-f659-4ad7-a1a9-9a747aaf5275")
// To use the live system, replace "sandbox" with "live" in the URL passed to HttpSb.
// Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
resp := chilkat.NewHttpResponse()
success = http.HttpSb("DELETE","https://pay-api.amazon.eu/sandbox/v2/charges/{$chargeId}/cancel",sbRequestBody,"utf-8","application/json",resp)
if success == false {
fmt.Println(http.LastErrorText())
http.DisposeHttp()
json.DisposeJsonObject()
sbRequestBody.DisposeStringBuilder()
privKey.DisposePrivateKey()
resp.DisposeHttpResponse()
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.")
http.DisposeHttp()
json.DisposeJsonObject()
sbRequestBody.DisposeStringBuilder()
privKey.DisposePrivateKey()
resp.DisposeHttpResponse()
sbResponseBody.DisposeStringBuilder()
jResp.DisposeJsonObject()
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": "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
chargeId := jResp.StringOf("chargeId")
chargePermissionId := jResp.StringOf("chargePermissionId")
chargeAmountAmount := jResp.StringOf("chargeAmount.amount")
chargeAmountCurrencyCode := jResp.StringOf("chargeAmount.currencyCode")
captureAmountAmount := jResp.StringOf("captureAmount.amount")
captureAmountCurrencyCode := jResp.StringOf("captureAmount.currencyCode")
refundedAmountAmount := jResp.StringOf("refundedAmount.amount")
refundedAmountCurrencyCode := jResp.StringOf("refundedAmount.currencyCode")
convertedAmount := jResp.StringOf("convertedAmount")
conversionRate := jResp.StringOf("conversionRate")
softDescriptor := jResp.StringOf("softDescriptor")
merchantMetadata := jResp.StringOf("merchantMetadata")
providerMetadataProviderReferenceId := jResp.StringOf("providerMetadata.providerReferenceId")
statusDetailsState := jResp.StringOf("statusDetails.state")
statusDetailsReasonCode := jResp.StringOf("statusDetails.reasonCode")
statusDetailsReasonDescription := jResp.StringOf("statusDetails.reasonDescription")
statusDetailsLastUpdatedTimestamp := jResp.StringOf("statusDetails.lastUpdatedTimestamp")
creationTimestamp := jResp.StringOf("creationTimestamp")
expirationTimestamp := jResp.StringOf("expirationTimestamp")
releaseEnvironment := jResp.StringOf("releaseEnvironment")
http.DisposeHttp()
json.DisposeJsonObject()
sbRequestBody.DisposeStringBuilder()
privKey.DisposePrivateKey()
resp.DisposeHttpResponse()
sbResponseBody.DisposeStringBuilder()
jResp.DisposeJsonObject()