Session handling in Snap

In this recipe, we will work with session manager data type, SessionManager in Snap. The HTTP is a connection-less protocol, and the concept of a session has to be built on top of  the interaction between client and server. The session is usually represented by some key-value pair that can be persisted across the interactions between a client and the server. In HTTP, this can be done in multiple ways--one of the most popular ways of handling a session is to set the session cookies. The session cookies are retained by the browser for a particular interaction duration.

In this recipe, we will set session cookies through cookie based the session manager in Snap.

How to do it...

1. Create a new project, session-in-snap, with a simple stack template:

        stack new session-in-snap simple

2. Add a dependency on the snap-core library in the build-depends subsection of the executable section. Add the other libraries necessary for working with Snap:

  executable session-in-snap
 ...