(Objective-C) Amazon SP-API Create Feed

See more Amazon SP-API Examples

Creates a feed. Amazon returns a feedDocumentId value, encryption details, and a URL for uploading the feed contents.

For more information, see https://developer-docs.amazon.com/sp-api/docs/feeds-api-v2020-09-04-use-case-guide

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

#import <CkoAuthAws.h>
#import <CkoRest.h>
#import <CkoJsonObject.h>
#import <NSString.h>
#import <CkoStringBuilder.h>

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

CkoAuthAws *authAws = [[CkoAuthAws alloc] init];
authAws.AccessKey = @"AWS_ACCESS_KEY";
authAws.SecretKey = @"AWS_SECRET_KEY";
authAws.ServiceName = @"execute-api";
// Use the region that is correct for your needs.
authAws.Region = @"eu-west-1";

CkoRest *rest = [[CkoRest alloc] init];
BOOL success = [rest Connect: @"sellingpartnerapi-eu.amazon.com" port: [NSNumber numberWithInt: 443] tls: YES autoReconnect: YES];
if (success == NO) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

success = [rest SetAuthAws: authAws];

// Load the previously obtained LWA access token.
// See Fetch SP-API LWA Access Token
CkoJsonObject *jsonToken = [[CkoJsonObject alloc] init];
success = [jsonToken LoadFile: @"qa_data/tokens/sp_api_lwa_token.json"];
if (success == NO) {
    NSLog(@"%@",@"Failed to load LWA access token.");
    return;
}

// Add the x-amz-access-token request header.
NSString *lwa_token = [jsonToken StringOf: @"access_token"];

CkoJsonObject *jsonReq = [[CkoJsonObject alloc] init];
[jsonReq UpdateString: @"contentType" value: @"text/tab-separated-values; charset=UTF-8"];

CkoStringBuilder *sbRequest = [[CkoStringBuilder alloc] init];
[jsonReq EmitSb: sbRequest];

[rest ClearAllQueryParams];
[rest ClearAllHeaders];
[rest AddHeader: @"x-amz-access-token" value: lwa_token];

CkoStringBuilder *sbResponse = [[CkoStringBuilder alloc] init];
NSString *path = @"/feeds/2021-06-30/documents";
success = [rest FullRequestSb: @"POST" uriPath: path requestBody: sbRequest responseBody: sbResponse];
if (success == NO) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

// Examine the response status.
int statusCode = [rest.ResponseStatusCode intValue];
NSLog(@"%@%d",@"statusCode: ",statusCode);

if (statusCode != 201) {
    NSLog(@"%@%@",@"Response status text: ",rest.ResponseStatusText);
    NSLog(@"%@",@"Response body: ");
    NSLog(@"%@",[sbResponse GetAsString]);
    NSLog(@"%@",@"Failed.");
    return;
}

NSLog(@"%@",[sbResponse GetAsString]);

// If successful, gets a JSON response such as the following:

// {
//   "feedDocumentId": "3d4e42b5-1d6e-44e8-a89c-2abfca0625bb",
//   "url": "https://d34o8swod1owfl.cloudfront.net/Feed_101__POST_PRODUCT_DATA_.xml"
// }

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

CkoJsonObject *json = [[CkoJsonObject alloc] init];

[json LoadSb: sbResponse];

NSString *feedDocumentId = [json StringOf: @"feedDocumentId"];
NSString *url = [json StringOf: @"url"];

// Save the JSON to a file for the example that constructs the XML feed and uploads..
success = [json WriteFile: @"qa_data/json/sp_api_feed_upload_info.json"];

NSLog(@"%@",@"Success!");