Middleware Implementation

[Himan10]

1. as discussed, we have to implement our own middleware that will fetch the user related details from the request, and for other necessary stuff such as validation, db lookup for user information etc.

[Himan10]

I am writing this middleware, right now we have to manually check for Access-Token and if it's a valid one in the request or not.

Action items for middleware:

1. Check Access-Token in the request
2. Validate few parameter in the request
   2.1 HOST
   2.2 Content-Type
   2.3 HTTP Method
   2.4 X-Request-ID
   2.5 Content-Length
3. Verify JWT token as well (have to discuss)