(Objective-C) Amazon SP-API Upload Feed

See more Amazon SP-API Examples

Upload a feed document to the feed previously created.

For more information, see https://developer-docs.amazon.com/sp-api/docs/feeds-api-v2021-06-30-use-case-guide#step-2-construct-a-feed

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#import <CkoStringBuilder.h>
#import <CkoJsonObject.h>
#import <NSString.h>
#import <CkoHttp.h>
#import <CkoHttpResponse.h>

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

// Load your own feed data file.
CkoStringBuilder *sbRequestBody = [[CkoStringBuilder alloc] init];
BOOL success = [sbRequestBody LoadFile: @"C:/AAWorkarea/test-despatch-upload.txt" charset: @"utf-8"];
if (success == NO) {
    NSLog(@"%@",@"Failed to load test-despatch-upload.txt.");
    return;
}

// The SP-API Create Feed example returned JSON such as this.

// {
//   "feedDocumentId": "amzn1.tortuga.4.eu.8fb6f9c4-XXXX-4e7f-824f-XXXXXXXXXXXXX.ZZZZZZZZZZZZZZ",
//   "url": "https://tortuga-prod-eu.s3-eu-west-1.amazonaws.com/%2FNinetyDays/amzn1.tortuga.4.eu.8fb6f9c4-XXXX-4e7f-824f-XXXXXXXXXXXXX.ZZZZZZZZZZZZZZ?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20230222T014944Z&X-Amz-SignedHeaders=content-type%3Bhost&X-Amz-Expires=300&X-Amz-Credential=XXXXXXXXXXXXXXXXX%2F20230222%2Feu-west-1%2Fs3%2Faws4_request&X-Amz-Signature=XXXXXXXXXXXXXXXXXXXXXXXXXXXX"
// }

// Load the JSON feed file created by this example:  SP-API Create Feed
CkoJsonObject *jsonFeedInfo = [[CkoJsonObject alloc] init];
success = [jsonFeedInfo LoadFile: @"qa_data/json/sp_api_feed_upload_info.json"];
if (success == NO) {
    NSLog(@"%@",jsonFeedInfo.LastErrorText);
    return;
}

// Get the pre-signed URL
NSString *url = [jsonFeedInfo StringOf: @"url"];

// We can use the Chilkat HTTP object because the URL is pre-signed.
// We don't need to add our own AWS authentication because it's already in the pre-signed URL,
// which is only valid for short amount of time.
CkoHttp *http = [[CkoHttp alloc] init];

// NOTE: The string "text/tab-separated-values; charset=UTF-8" must match exactly the contentType specified when creating the feed.
CkoHttpResponse *resp = [http PTextSb: @"PUT" url: url textData: sbRequestBody charset: @"utf-8" contentType: @"text/tab-separated-values; charset=UTF-8" md5: NO gzip: NO];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

NSLog(@"%@%d",@"status code = ",[resp.StatusCode intValue]);
NSLog(@"%@%@",@"status text = ",resp.StatusText);
NSLog(@"%@",@"response body:");
NSLog(@"%@",resp.BodyStr);