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Haskell Cookbook

You're reading from   Haskell Cookbook Build functional applications using Monads, Applicatives, and Functors

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Product type Paperback
Published in Sep 2017
Publisher Packt
ISBN-13 9781786461353
Length 396 pages
Edition 1st Edition
Languages
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Author (1):
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Yogesh Sajanikar Yogesh Sajanikar
Author Profile Icon Yogesh Sajanikar
Yogesh Sajanikar
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Table of Contents (13) Chapters Close

Preface 1. Foundations of Haskell FREE CHAPTER 2. Getting Functional 3. Defining Data 4. Working with Functors, Applicatives, and Monads 5. More about Monads 6. Working with Common Containers and Strings 7. Working with Relational and NoSQL Databases 8. Working with HTML and Templates 9. Working with Snap Framework 10. Working with Advanced Haskell 11. Working with Lens and Prism 12. Concurrent and Distributed Programming in Haskell

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,...
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