Kentico 10 - Files not synced to AWS S3 - amazon-s3

Question

We are trying to integrate AWS S3 in our Kentico 10 application.
I followed this link:
https://docs.xperience.io/k10/custom-development/working-with-physical-files-using-the-api/configuring-file-system-providers/configuring-amazon-s3#ConfiguringAmazonS3-Medialibrarynotes
I created following module in App_Code => CMSModules => AWSS3 => AWSS3Module.cs
Here is the code of AWSS3Module.cs
using CMS;
using CMS.DataEngine;
using CMS.EventLog;
using CMS.IO;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Web;
/*
Make sure following entries exists in web.config => <appSettings>
<add key="CMSAmazonBucketName" value="" />
<add key="CMSAmazonAccessKeyID" value="" />
<add key="CMSAmazonAccessKey" value="" />
<add key="CMSAmazonPublicAccess" value="true" />
<add key="CMSAmazonEndPoint" value="" />
*/
[assembly: RegisterModule(typeof(AWSS3Module))]
/// <summary>
/// Summary description for AWSS3Module
/// </summary>
public class AWSS3Module: Module
{
public AWSS3Module(): base("AWSS3Module")
{
//
// TODO: Add constructor logic here
//
}
// Initializes the module. Called when the application starts.
protected override void OnInit()
{
base.OnInit();
// Assigns a handler to the Insert.After event for OfficeInfo objects
EventLogProvider.LogInformation("AWSS3 module", "OnInit", "This code is running");
// Creates a new StorageProvider instance
AbstractStorageProvider mediaProvider = new StorageProvider("Amazon", "CMS.AmazonStorage");
// Specifies the target bucket
mediaProvider.CustomRootPath = ConfigurationManager.AppSettings["CMSAmazonBucketName"];
// Makes the bucket publicly accessible
mediaProvider.PublicExternalFolderObject = true;
// Maps a directory to the provider
StorageHelper.MapStoragePath("~/Sitename/", mediaProvider);
}
}
I read in one of the post that only new files will be synced. I tried adding few files in the media folder but nothing added in bucket.
There are no errors in logs. Also, I can see the module is loaded in the logs.
Bucket policy seems to be correct or I couldn't find issues in logs.
What am I doing wrong?
Also, if a file is uploaded, how can I get the S3 URL for that file?

Answer 1

Check this section:
StorageHelper.MapStoragePath("~/Sitename/", mediaProvider);
Make sure "/Sitename/" is the actual folder the media lib uses!
All you do here is basically instruct Kentico that there is an "alternative" way of storing files in folder 'x'. If your media lib is not storing in that exact folder it doesn't do anything.