Objective-C

Amazon Pay - Get Refund

See more Amazon Pay Examples

Get refund details. Objective-C

#import <CkoHttp.h>
#import <CkoPrivateKey.h>
#import <NSString.h>
#import <CkoStringBuilder.h>
#import <CkoJsonObject.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/refunds/:refundId" \
//  -X GET
//  -H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
//  -H "x-amz-pay-date:20201012T235046Z"

//  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.
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
//  Authorization

http.Accept = @"application/json";

int respStatusCode = 0;

CkoStringBuilder *sbResponseBody = [[CkoStringBuilder alloc] init];
success = [http SetUrlVar: @"refundId" value: @"S01-5105180-3221187-R022311"];
//  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 QuickGetSb: @"https://pay-api.amazon.eu/sandbox/v2/refunds/{$refundId}" sbContent: sbResponseBody];
if (success == NO) {
    //  If the LastStatus is not equal to 0, then we received a response, but it was an error response.
    respStatusCode = [http.LastStatus intValue];
    if (respStatusCode != 0) {
        NSLog(@"%@%d",@"Response Status Code = ",respStatusCode);
        NSLog(@"%@",@"Response body:");
        NSLog(@"%@",http.LastResponseBody);
    }
    else {
        NSLog(@"%@",http.LastErrorText);
    }

    return;
}

CkoJsonObject *jResp = [[CkoJsonObject alloc] init];
[jResp LoadSb: sbResponseBody];
jResp.EmitCompact = NO;

NSLog(@"%@",@"Response Body:");
NSLog(@"%@",[jResp Emit]);

respStatusCode = [http.LastStatus intValue];
NSLog(@"%@%d",@"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) {
    NSLog(@"%@",@"Failed.");
    return;
}

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

//  {
//       "refundId": "S01-5105180-3221187-R022311",
//       "chargeId": "S01-5105180-3221187-C056351",
//       "refundAmount": {
//           "amount": "14.00",
//           "currencyCode": "USD"
//       },
//       "softDescriptor": "Descriptor",
//       "creationTimestamp": "20190714T155300Z",
//       "statusDetails": {
//           "state": "Refunded",
//           "reasonCode": null,
//           "reasonDescription": null,
//           "lastUpdatedTimestamp": "20190714T155300Z"
//       },
//       "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

NSString *refundId = [jResp StringOf: @"refundId"];
NSString *chargeId = [jResp StringOf: @"chargeId"];
NSString *refundAmountAmount = [jResp StringOf: @"refundAmount.amount"];
NSString *refundAmountCurrencyCode = [jResp StringOf: @"refundAmount.currencyCode"];
NSString *softDescriptor = [jResp StringOf: @"softDescriptor"];
NSString *creationTimestamp = [jResp StringOf: @"creationTimestamp"];
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 *releaseEnvironment = [jResp StringOf: @"releaseEnvironment"];