Download Developing Web Apps with Haskell and Yesod: Safety-Driven by Michael Snoyman PDF

By Michael Snoyman

This fast-moving consultant introduces internet software improvement with Haskell and Yesod, a powerful language/framework blend that helps high-performing purposes which are modular, type-safe, and concise. totally up to date for Yesod 1.4, this moment variation indicates you the way Yesod handles widgets, kinds, patience, and RESTful content material. writer Michael Snoyman additionally introduces numerous Haskell instruments to complement your simple wisdom of the language.

By the time you end this e-book, you’ll create a production-quality internet program with Yesod’s ready-to-use scaffolding. You’ll additionally study numerous real-world examples, together with a web publication, a wiki, a JSON net carrier, and a Sphinx seek server.

Build an easy program to benefit Yesod’s starting place datatype and net software Interface (WAI)Output HTML, CSS, and Javascript with Shakespearean template languages
Get an indepth examine Yesod’s center monads for generating cleanser, extra modular code
Probe Yesod’s inner workings: study the request dealing with procedure for a customary application
Build kinds on most sensible of widgets via enforcing the yesod-form declarative API
Learn how Yesod and Haskell deal with endurance and consultation data
Serve an HTML web page and a machine-friendly JSON web page from an analogous URL

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Read or Download Developing Web Apps with Haskell and Yesod: Safety-Driven Web Development (2nd Edition) PDF

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War Now you’re ready to deploy. 4 And 80 lines of code later You’ve learned about Grails. And you’ve created plenty of code, too. But don’t take my word for it; let’s have Grails crunch the numbers with a grails stats command. 1 shows the grails stats command in action. com> 32 CHAPTER 1 Grails in a hurry . . Only 90 lines of code (LOC)! Not too shabby for an Ajax-powered, user-editable, random quote web application with unit tests. If you removed the empty skeleton test cases that Grails created for your domain, controller, and service classes, you would trim it down to 51 lines.

Gsp view: ■ Add the Ajax library to the element. You’ll use jQuery, but Grails also lets you use Yahoo! gsp, add a menu section that allows the user to display a new quote or navigate to the admin screens. You’ll use Grails’s taglibs to create both your Ajax link for refreshing quotes and your standard link for the admin interface. The following code shows your new menu HTML. com> 30 CHAPTER 1 Grails in a hurry . . 3, where you used them to generate a standardized layout for your application.

1 shows the grails stats command in action. com> 32 CHAPTER 1 Grails in a hurry . . Only 90 lines of code (LOC)! Not too shabby for an Ajax-powered, user-editable, random quote web application with unit tests. If you removed the empty skeleton test cases that Grails created for your domain, controller, and service classes, you would trim it down to 51 lines. This Grails introduction has given you a taste of models, views, controllers, services, taglibs, layouts, and unit tests. And you’ve got more to explore.

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