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TypeFramework: A TypeScript Web Framework

Alex R. Young

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TypeFramework: A TypeScript Web Framework

Posted by Alex R. Young on .
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languages Microsoft typescript

TypeFramework: A TypeScript Web Framework

Posted by Alex R. Young on .

This week on DailyJS every post is about TypeScript! This post is about TypeFramework, a possibly Rails inspired web framwork aimed at TypeScript developers.

One of the aims of TypeScript is to help you write large applications. In Node, the popular idiom is "small modules" -- programs are composed from small packages with APIs based on patterns found in Node's core modules. That means EventEmitter, streams, callbacks with the error-first signature, and modules that return a single function.

This can work well, but people still seem to struggle to maintain larger web applications. Surely a TypeScript MVC framework offers insights on how to structure larger projects?

TypeFramework (GitHub: zekelevu / typeframework, License: MIT, npm: typeframework) by Zeke Kievel is built on Express. It has controllers, models, views, routing, and configuration. The models are based on the Waterline ORM, and they look like this:

class User extends TF.Model {  
  name: string;
  email: string;
  age?: number;
}

app.addModel(User);  

The chainable API is quite nice:

User.find()  
  .where({ name: 'John' })
  .skip(10)
  .limit(5)
  .done((err, users: User[]) => { /* callback */ });

Everything looks very much like a lightweight Rails. It will probably help C# developers who want to write things that run on Node, or Rails developers who are transitioning to Node.

What I'd really like to see is a more MVVM-style framework with interfaces for code contracts, services, and ReactiveUI-style APIs. I'd prefer skinny models so I can avoid putting business logic in them and use my own persistance layer. I think TypeScript is perfectly suited to this, but I haven't yet found such a framework.