yes, it is similar to rack. But what rack has this requirement of being pluggable from multiple decoupled codebases (rails or other framework, your app, some gems you're adding to your app). And that also warranted things like "insert_before" etc.
Even with rack, decoupling of code definition (where you've added your middleware) and code execution could be pretty hard to debug, but at least with enough exposure you know where to look, and you usually have only one rack stack in your app.
If all those steps in your pipeline are defined in the same codebase, rack approach becomes much less useful.
Even with rack, decoupling of code definition (where you've added your middleware) and code execution could be pretty hard to debug, but at least with enough exposure you know where to look, and you usually have only one rack stack in your app.
If all those steps in your pipeline are defined in the same codebase, rack approach becomes much less useful.