Book Image

Lift Application Development Cookbook

By : Gilberto Tadeu Garcia Jun
Book Image

Lift Application Development Cookbook

By: Gilberto Tadeu Garcia Jun

Overview of this book

Developing secure web applications is one of the most important tasks developers have to deal with. With Lift, it is easy to create solid and formidable web applications as it is the most secure web framework available today. The View-First approach and being able to handle things as purely data transformation, makes working with Lift an exciting task. "Lift Application Development Cookbook" teaches you how to build web applications using this amazing framework. The book moves gradually, starting with the basics (starting a new project, submitting a form, and so on) before covering more advanced topics such as building a REST API and integrating your application with other technologies and applications. "Lift Application Development Cookbook" takes you on a journey of creating secure web applications. Step-by-step instructions help you understand how things work and how various elements relate to each other. You'll learn different ways to process a form, build dynamic HTML pages, and create an API using REST. You'll also learn how to work with relational and NoSQL databases and how to integrate your application with other technologies as well as with third-part applications such as Gmail and Facebook. By the end of the book, you will be able to understand how Lift works and be able to build web applications using this amazing and exciting framework.
Table of Contents (15 chapters)
Lift Application Development Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating custom error pages


Even if we do test the applications we build, there are aspects and situations that we can't control—the user may type the wrong URL, we could have a problem with the network, or something that we didn't predict may happen and cause the application to fail.

That is why it is important to have a way to create pages to inform the user that something went wrong. Fortunately, Lift allows you to configure error pages based on HTTP response status codes.

Getting ready

You will need to perform the following steps before you begin creating custom error pages:

  1. Create a new project.

  2. Create a file called 404.html by duplicating the index.html file.

  3. Replace the content of the div tag with main as the value of id with the following code:

    <h2>Error: 404</h2>
    <p>Page not found!</p>
  4. Create a new file called 403.html by duplicating the 404.html file.

  5. Replace the content of div with main as the value of id with the following code:

    <h2>Error: 403</h2>
    ...