响应中带有状态对象的NodeJS http.get

Question

I am struggeling with something that I belive supposed to be quite simple once you know how to do it , I apologize if its already been answered - I have searched throughly and could not find an answer.

In Node JS , I want to perform http.get , in the response parameter, I dont pass a closure but a reference to a function that receive a response in a parameter (that way I can have re usability) but I also want to have a state/data object that will be passed to this response function so I could further handle the transaction - with closures its easy but then I need to copy/paste all the time.

 https.get({
        host: 'www.****.com',
        path: ********
    }, this._searchResponseHandler.bind(this));

How can that pleased be achieved ?

Thank you ,

James

Answer 1

You can use bind() to also provide initial arguments to your function (the result of which are called partial functions ):

this._searchResponseHandler.bind(this, stateObj)

The signature of the handler would become:

_searchResponseHandler : function(stateObj, res) { ... }