How to implement filters/middleware documentation about typescript-rest HOT 6 CLOSED

Hi,

Typescript-rest works over expressjs. Express allows you to create middlewares to intercept your requests. Take a look at this and this to see how to create middlewares to express.

Check this for an example of using express middlewares with typescript-rest and this for authentication.

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The new @Preprocessor feature should solve this issue.

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Is authentication and authorization not just a route that you call that creates a response based on your model? Middleware you can just add like in express:
https://github.com/thiagobustamante/typescript-rest#registering-services

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Sorry I didn't state what I wanted to achieve clearly. I was looking for a way to do an interceptor (or transfer control to some chunk of code), before control is given to a certain route handler.
That way, you can do checks to determine if a route can be executed or not. I am coming from a hapijs background, and we could achieve this using hapijs plugins. In microsoft's web api, they are called 'filters'.

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I saw that someone asked a similar question. #23. I now see how to do it. I wish it was possible to do something like:
//import some auth filter that is singleton
import authFilter from './some-authentication-filter';

//inside a controller class
@get
@path('test')
@filter(authFilter)
async test( ) {
let result = await this.aPromiseMethod();
return result;
}

Looks elegant, doesn't it? Maybe this is supposed to be a feature request to implement such a decorator? I could do such a thing if you guided me.

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This is awesome! Thanks so much @ngraef

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