middleware api is hard to hook when need to through request response

[Germiniku]

The scenario is that I need to build tracking into the middleware, but it's hard to do this without intruding through BeforeRequest and AfterRequest hooks
If middleware api is like this, I can do a lot of things with closures

Middleware func(*Client, *Request) func(*Client, *Response) error

[kecci]

Hi @Germiniku,

What I do on tracking with resty, I should set my resty client with this func:

• Hook BeforeRequest, userestyClient.OnAfterResponse()
• Hook AfterRequest, use restyClient.OnBeforeRequest()

I hope this could be help the discussion.