Objective-C
Objective-C
Amazon Pay - Complete Checkout Session
See more Amazon Pay Examples
Complete Checkout Session after the buyer returns to checkoutResultReturnUrl to finalize the paymentIntent.Chilkat Objective-C Downloads
#import <CkoHttp.h>
#import <CkoJsonObject.h>
#import <CkoPrivateKey.h>
#import <NSString.h>
#import <CkoHttpResponse.h>
#import <CkoStringBuilder.h>
BOOL success = NO;
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
CkoHttp *http = [[CkoHttp alloc] init];
// 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"
// }
// }
CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json UpdateString: @"chargeAmount.amount" value: @"14.00"];
[json UpdateString: @"chargeAmount.currencyCode" value: @"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.
CkoPrivateKey *privKey = [[CkoPrivateKey alloc] init];
success = [privKey LoadPemFile: @"C:/someDir/myAmazonPayPrivateKey.pem"];
if (success == NO) {
NSLog(@"%@",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
NSString *publicKeyId = @"SANDBOX-AHEGSJCM3L2S637RBGABLAFW";
success = [http SetAuthPrivateKey: publicKeyId privKey: privKey];
if (success == NO) {
NSLog(@"%@",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
// 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 SetUrlVar: @"sessionId" value: @"62b7d028-6c7c-4a43-b077-3897dff27c5b"];
CkoHttpResponse *resp = [[CkoHttpResponse alloc] init];
success = [http HttpJson: @"POST" url: @"https://pay-api.amazon.eu/sandbox/v2/checkoutSessions/{$sessionId}/complete" json: json contentType: @"application/json" response: resp];
if (success == NO) {
NSLog(@"%@",http.LastErrorText);
return;
}
CkoStringBuilder *sbResponseBody = [[CkoStringBuilder alloc] init];
[resp GetBodySb: sbResponseBody];
CkoJsonObject *jResp = [[CkoJsonObject alloc] init];
[jResp LoadSb: sbResponseBody];
jResp.EmitCompact = NO;
// If the status code is not equal to 200, this will display error information.
NSLog(@"%@",@"Response Body:");
NSLog(@"%@",[jResp Emit]);
int respStatusCode = [resp.StatusCode intValue];
NSLog(@"%@%d",@"Response Status Code = ",respStatusCode);
if (respStatusCode != 200) {
// 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"
// }
NSLog(@"%@",@"Failed.");
return;
}
// 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
BOOL nullVal;
NSString *checkoutSessionId = [jResp StringOf: @"checkoutSessionId"];
NSString *webCheckoutDetails = [jResp StringOf: @"webCheckoutDetails"];
NSString *chargePermissionType = [jResp StringOf: @"chargePermissionType"];
NSString *recurringMetadata = [jResp StringOf: @"recurringMetadata"];
NSString *productType = [jResp StringOf: @"productType"];
NSString *paymentDetails = [jResp StringOf: @"paymentDetails"];
NSString *merchantMetadata = [jResp StringOf: @"merchantMetadata"];
NSString *supplementaryData = [jResp StringOf: @"supplementaryData"];
NSString *buyer = [jResp StringOf: @"buyer"];
NSString *billingAddress = [jResp StringOf: @"billingAddress"];
NSString *statusDetailsState = [jResp StringOf: @"statusDetails.state"];
NSString *statusDetailsReasonCode = [jResp StringOf: @"statusDetails.reasonCode"];
NSString *statusDetailsReasonDescription = [jResp StringOf: @"statusDetails.reasonDescription"];
NSString *statusDetailsLastUpdatedTimestamp = [jResp StringOf: @"statusDetails.lastUpdatedTimestamp"];
NSString *shippingAddress = [jResp StringOf: @"shippingAddress"];
NSString *platformId = [jResp StringOf: @"platformId"];
NSString *chargePermissionId = [jResp StringOf: @"chargePermissionId"];
NSString *chargeId = [jResp StringOf: @"chargeId"];
NSString *creationTimestamp = [jResp StringOf: @"creationTimestamp"];
NSString *expirationTimestamp = [jResp StringOf: @"expirationTimestamp"];
NSString *storeId = [jResp StringOf: @"storeId"];
NSString *deliverySpecifications = [jResp StringOf: @"deliverySpecifications"];
NSString *providerMetadata = [jResp StringOf: @"providerMetadata"];
NSString *releaseEnvironment = [jResp StringOf: @"releaseEnvironment"];
int i = 0;
int count_i = [[jResp SizeOfArray: @"paymentPreferences"] intValue];
while (i < count_i) {
jResp.I = [NSNumber numberWithInt: i];
nullVal = [jResp IsNullOf: @"paymentPreferences[i]"];
i = i + 1;
}
i = 0;
count_i = [[jResp SizeOfArray: @"constraints"] intValue];
while (i < count_i) {
jResp.I = [NSNumber numberWithInt: i];
nullVal = [jResp IsNullOf: @"constraints[i]"];
i = i + 1;
}