HASKELL AND YESOD PDF

Yesod is a Haskell web framework for productive development of type-safe, RESTful, high performance web applications. Learn more or get started. You can also learn more about Haskell. Why Yesod? Turn runtime bugs into compile-time errors Yesod believes in the philosophy of making the compiler your ally, not your enemy.

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Yesod is a Haskell web framework for productive development of type-safe, RESTful, high performance web applications. Learn more or get started. You can also learn more about Haskell. Why Yesod? Turn runtime bugs into compile-time errors Yesod believes in the philosophy of making the compiler your ally, not your enemy.

We use the type system to enforce as much as possible, from generating proper links, to avoiding XSS attacks, to dealing with character encoding issues.

In general, if your code compiles, it works. And instead of declaring types everywhere you let the compiler figure them out for you with type inference. Asynchronous made easy The Haskell runtime is asynchronous automatically. Instead of dealing with callbacks, you get to write normal code. By utilizing light-weight green threads and event-based system calls, your code automatically becomes non-blocking, without the pain.

Scalable and Performant Yesod lets you write simple, high-level code, and gives you good performance. But when you need more, you can tune your compiled code for something even faster. The GHC compiler ensures we get fast machine code at the end of the day. Light-weight syntax A lot of web development is boilerplate.

Setting up routing tables, creating database schemas, and dealing with forms can all be long, repetitive code. But more importantly the DSLs are correct: they are all compile-time checked to get rid of the runtime bugs. Getting started quick start guide book cookbook community screencasts 1.

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Developing Web Applications with Haskell and Yesod

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Building a Blog in Haskell with Yesod–Using a Database

Yesod is based on templates, to generate instances for listed entities, and dynamic content process functions, through Template Haskell constructs to host eDSL content templates called QuasiQuotes, where the content is translated into code expressions by metaprogramming instructions. There are also web-like language snippet templates that admit code expression interpolations, making them fully type-checked at compile-time. See ref. This is called the foundation type. In the example below, it is named "MyApp".

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Yesod (web framework)

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