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As simple as... the Inventory bounded context

Aug 31, 20212 min read

Last weekend I went to the dynamIT conference that took place in Kraków. In his presentation, Andrzej Krzywda was speaking about DDD as Low-Code. He distilled 11 bounded contexts that are common in the different business applications. One of them is ...

Accessing Cloudfront stream with VideoJS and server-side signed cookies

Apr 23, 20212 min read

Today's post is a continuation of what I wrote yesterday about securing Cloudfront stream with signed cookie. I encourage you to open this post especially to look at the UML diagram. There are some things you need to keep in mind to access a stream ...

Securing Amazon Cloudfront stream with signed cookies

Apr 22, 20212 min read

In one of my recent posts I described the challenges I faced while building the audiobook streaming platform. One of them was securing access to the Cloudfront stream. There are two ways of securing content that CloudFront delivers: signed URLs and ...

How do I use ActiveJob to track the progress of long-running remote tasks?

Apr 21, 20212 min read

Yesterday I wrote a post about initializing AWS Elemental MediaConvert job. It's a common case that you initiate a task and have to wait some unspecified time for the result. All what you have is an external system job id. In such cases, I use a ve...

Convert mp3 files to a streaming-ready format

Apr 20, 20213 min read

In my yesterday's post, I described why I decided to take advantage of the HLS streaming in my new project which is a platform for audiobook streaming. I explained why a file conversion is required. The simplest way, I discovered, to get this done, i...

Streaming (HLS) vs progressive download

Apr 19, 20212 min read

Recently I was faced with the challenge of implementing a platform for audiobook streaming. "Streaming" seemed to be a very overused word in colloquial speech to me (same as "Artificial Intelligence"). So first I had to figure out what streaming real...