Lua Requires Chilkat v9.5.0.89+

Amazon Pay - Complete Checkout Session

See more Amazon Pay Examples

Complete Checkout Session after the buyer returns to checkoutResultReturnUrl to finalize the paymentIntent. 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/checkoutSessions/:checkoutSessionId/complete" \
-- -X POST
-- -H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
-- -H "x-amz-pay-date:20201012T235046Z"
-- -H "x-amz-pay-idempotency-key:AVLo5tI10BHgEk2jEXAMPLEKEY"
-- -d '{
--     "chargeAmount": {
--         "amount": "14.00",
--         "currencyCode": "USD"
--     }
-- }'

-- 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.

-- {
--   "chargeAmount": {
--     "amount": "14.00",
--     "currencyCode": "USD"
--   }
-- }

local json = chilkat.JsonObject.new()
json:update_string("chargeAmount.amount", "14.00")
json:update_string("chargeAmount.currencyCode", "USD")

-- 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
-- x-amz-pay-idempotency-key
-- Authorization

http.accept = "application/json"

-- To use the live system, replace "sandbox" with "live" in the URL passed to HttpJson.
-- Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
success = http:set_url_var("sessionId", "62b7d028-6c7c-4a43-b077-3897dff27c5b")
local resp = chilkat.HttpResponse.new()
success = http:http_json("POST", "https://pay-api.amazon.eu/sandbox/v2/checkoutSessions/{$sessionId}/complete", json, "application/json", resp)
if not success then
    print(http.last_error_text)
    return
end

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

-- If the status code is not equal to 200, this will display error information.
print("Response Body:")
print(jResp:emit())

local respStatusCode = resp.status_code
print("Response Status Code = " .. respStatusCode)
if respStatusCode ~= 200 then
    -- A sample response body for the case where the session ID does not exist:
    --     {
    --       "reasonCode": "ResourceNotFound",
    --       "message": "Resource you are trying to access is not available. Requested path '/sandbox/v2/checkoutSessions/bd504926-f659-4ad7-a1a9-9a747aaf5275'"
    --     }

    -- Another sample failure response (status code = 422)
    --     {
    --       "reasonCode": "InvalidCheckoutSessionStatus",
    --       "message": "You tried to call an operation on a Checkout Session that is in a state where that operation is not allowed"
    --     }

    print("Failed.")
    return
end

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

-- {
--   "checkoutSessionId": "bd504926-f659-4ad7-a1a9-9a747aaf5275",
--   "webCheckoutDetails": null,
--   "chargePermissionType": "OneTime",
--   "recurringMetadata": null,
--   "productType": null,
--   "paymentDetails": null,
--   "merchantMetadata": null,
--   "supplementaryData": null,
--   "buyer": null,
--   "billingAddress": null,
--   "paymentPreferences": [
--     null
--   ],
--   "statusDetails": {
--     "state": "Completed",
--     "reasonCode": null,
--     "reasonDescription": null,
--     "lastUpdatedTimestamp": "20191015T204327Z"
--   },
--   "shippingAddress": null,
--   "platformId": null,
--   "chargePermissionId": "S01-5105180-3221187",
--   "chargeId": "S01-5105180-3221187-C056351",
--   "constraints": [
--     null
--   ],
--   "creationTimestamp": "20191015T204313Z",
--   "expirationTimestamp": null,
--   "storeId": null,
--   "deliverySpecifications": null,
--   "providerMetadata": null,
--   "releaseEnvironment": null
-- }

-- 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 nullVal = false

local checkoutSessionId = jResp:string_of("checkoutSessionId")
local webCheckoutDetails = jResp:string_of("webCheckoutDetails")
local chargePermissionType = jResp:string_of("chargePermissionType")
local recurringMetadata = jResp:string_of("recurringMetadata")
local productType = jResp:string_of("productType")
local paymentDetails = jResp:string_of("paymentDetails")
local merchantMetadata = jResp:string_of("merchantMetadata")
local supplementaryData = jResp:string_of("supplementaryData")
local buyer = jResp:string_of("buyer")
local billingAddress = jResp:string_of("billingAddress")
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 shippingAddress = jResp:string_of("shippingAddress")
local platformId = jResp:string_of("platformId")
local chargePermissionId = jResp:string_of("chargePermissionId")
local chargeId = jResp:string_of("chargeId")
local creationTimestamp = jResp:string_of("creationTimestamp")
local expirationTimestamp = jResp:string_of("expirationTimestamp")
local storeId = jResp:string_of("storeId")
local deliverySpecifications = jResp:string_of("deliverySpecifications")
local providerMetadata = jResp:string_of("providerMetadata")
local releaseEnvironment = jResp:string_of("releaseEnvironment")
local i = 0
local count_i = jResp:size_of_array("paymentPreferences")
while i < count_i do
    jResp.i = i
    nullVal = jResp:is_null_of("paymentPreferences[i]")
    i = i + 1
end

i = 0
count_i = jResp:size_of_array("constraints")
while i < count_i do
    jResp.i = i
    nullVal = jResp:is_null_of("constraints[i]")
    i = i + 1
end