Lua Requires Chilkat v9.5.0.89+

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. Lua

local chilkat = require("chilkat")

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

local http = chilkat.Http.new()

-- 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.
local privKey = chilkat.PrivateKey.new()
local success = privKey:load_pem_file("C:/someDir/myAmazonPayPrivateKey.pem")
if not success then
    print(privKey.last_error_text)
    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.
local publicKeyId = "SANDBOX-AHEGSJCM3L2S637RBGABLAFW"
success = http:set_auth_private_key(publicKeyId, privKey)
if not success then
    print(http.last_error_text)
    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
-- Authorization

http.accept = "application/json"

local respStatusCode = 0

local sbResponseBody = chilkat.StringBuilder.new()
success = http:set_url_var("chargeId", "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:quick_get_sb("https://pay-api.amazon.eu/sandbox/v2/charges/{$chargeId}", sbResponseBody)
if not success then
    -- If the LastStatus is not equal to 0, then we received a response, but it was an error response.
    respStatusCode = http.last_status
    if respStatusCode ~= 0 then
        print("Response Status Code = " .. respStatusCode)
        print("Response body:")
        print(http.last_response_body)
    else
        print(http.last_error_text)
    end

    return
end

local jResp = chilkat.JsonObject.new()
jResp:load_sb(sbResponseBody)
jResp.emit_compact = false

print("Response Body:")
print(jResp:emit())

respStatusCode = http.last_status
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 then
    print("Failed.")
    return
end

-- 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

local chargeId = jResp:string_of("chargeId")
local chargePermissionId = jResp:string_of("chargePermissionId")
local chargeAmountAmount = jResp:string_of("chargeAmount.amount")
local chargeAmountCurrencyCode = jResp:string_of("chargeAmount.currencyCode")
local captureAmountAmount = jResp:string_of("captureAmount.amount")
local captureAmountCurrencyCode = jResp:string_of("captureAmount.currencyCode")
local refundedAmountAmount = jResp:string_of("refundedAmount.amount")
local refundedAmountCurrencyCode = jResp:string_of("refundedAmount.currencyCode")
local convertedAmount = jResp:string_of("convertedAmount")
local conversionRate = jResp:string_of("conversionRate")
local softDescriptor = jResp:string_of("softDescriptor")
local merchantMetadata = jResp:string_of("merchantMetadata")
local providerMetadataProviderReferenceId = jResp:string_of("providerMetadata.providerReferenceId")
local statusDetailsState = jResp:string_of("statusDetails.state")
local statusDetailsReasonCode = jResp:string_of("statusDetails.reasonCode")
local statusDetailsReasonDescription = jResp:string_of("statusDetails.reasonDescription")
local statusDetailsLastUpdatedTimestamp = jResp:string_of("statusDetails.lastUpdatedTimestamp")
local creationTimestamp = jResp:string_of("creationTimestamp")
local expirationTimestamp = jResp:string_of("expirationTimestamp")
local releaseEnvironment = jResp:string_of("releaseEnvironment")