Working with Data on the Web
Illustration by John Hersey

Working with YAML tools


From:

Working with Data on the Web

with Joseph Lowery

Video: Working with YAML tools

Whether you need help validating your YAML data or converting it to another format, there's a good number of tools online to help you out. In this lesson, we'll take a look at a couple of them. Before I start however, I do want to caution you in searches to look out for the other YAML. Yes I know it's hard to believe that someone could name another web technology YAML, but it's out there. The other YAML is a CSS framework. So, when you search for tools for YAML data, you might want to exclude CSS.

Start your free trial now, and begin learning software, business and creative skills—anytime, anywhere—with video instruction from recognized industry experts.

Start Your Free Trial Now
please wait ...
Watch the Online Video Course Working with Data on the Web
2h 21m Intermediate Aug 21, 2013

Viewers: in countries Watching now:

Often, designers need to convey simple data without the overhead of a relational database such as MySQL. This course introduces web technologies that make it easy for a designer or developer to store, retrieve, and display data online.

First, discover how data is collected via standard and advanced HTML5 forms. Then look at a client-friendly approach to storing that data using simple CSV files. Next, Joseph shows how to store, manage, and style data with the three big players: the granddaddy of static data, XML; the popular JavaScript-based JSON; and the recursively named YAML (YAML Ain't Markup Language), frequently used in Ruby-based projects. Plus, take a close look at basic HTML5 data options, including local storage and the flexible data attribute.

Topics include:
  • Interacting with data through HTML forms
  • Storing data as comma-separated values
  • Saving, retrieving, and displaying data as XML
  • Setting up and updating JSON data
  • Creating a YAML data file
  • Using HTML5 data storage solutions
Subjects:
Developer Web
Software:
HTML XML CSS JSON YAML
Author:
Joseph Lowery

Working with YAML tools

Whether you need help validating your YAML data or converting it to another format, there's a good number of tools online to help you out. In this lesson, we'll take a look at a couple of them. Before I start however, I do want to caution you in searches to look out for the other YAML. Yes I know it's hard to believe that someone could name another web technology YAML, but it's out there. The other YAML is a CSS framework. So, when you search for tools for YAML data, you might want to exclude CSS.

You can do this just by adding a negative sign, also known as a hyphen, in front of CSS, like I've done here. Okay? The first tool I want to introduce you to is the YAML Online Parser. This is really a nice multi-purpose utility that not only allows you to convert your YAML file to JSON, it can also serve to validate your YAML. Let me demonstrate that capability first. So I have a YAML file called data.yaml from chapter 5>05_04 folder open in my code editor.

I'm going to select all the code, and then copy it, and then go back to the YAML Online Parser where I can paste it in. So I'll paste it in on the left side here. Again, I'll just select everything and delete that in order to put it in. And instantly it converts it to whatever I have selected. So, I have JSON selected here as the output. You can see that down below the left text area. Although it doesn't say so explicitly, the successful conversion actually serves to validate your code.

Now, watch what happens if I put in a errant square bracket, down here. Let's say, right below the last price item is. So, I'll make a little line and put in a square bracket. Immediately, I get an error message pinpointing the problem. Nice. Right? Of course, you can also use it to convert your YAML code to JSON or Python, just by choosing a radio button. You also have the option to see your code in what is referred to as canonical YAML, or the authorized version.

Choosing this option, after I get rid of the little error there, will give you a very verbose result that identifies sequences and types the data, as for example, a string or an integer. The other tool that I want to bring to your attention is also a converter, but a more robust one. Go to iTools.org/unserialize to bring in your YAML data and paste it in upload it, or provide a URL for a posted file. I want to bring in some JSON data.

So, let's head back to our code editor. And I have a data.json file there, also from the same exercise file folder. So I'll select all, then copy everything back to our browser. There is a direct input field here that I can paste it into. And once I paste it in, let me scroll down, you can see down below that there are a number of options. I can have it detect it automatically, or I can say no I'm working with JSON, and what do I want to convert it to.

Now this is called a unserializer, so it really will allow you to output unserialized data, which is in this case used for PHP. But we're not really interested in that, we want it to go to YAML. So, I'll switch it to YAML, and then click the Unserialize button, and there's my YAML code. Pretty sweet, eh? Now, I'll go back. And as you can see, there are numerous formats to choose from for both the input and the output.

As the usage of YAML rises, it's especially popular with the Ruby on Rails developer crowd, more and more online tools are sure to surface.

There are currently no FAQs about Working with Data on the Web.

 
Share a link to this course

What are exercise files?

Exercise files are the same files the author uses in the course. Save time by downloading the author's files instead of setting up your own files, and learn by following along with the instructor.

Can I take this course without the exercise files?

Yes! If you decide you would like the exercise files later, you can upgrade to a premium account any time.

Become a member Download sample files See plans and pricing

Please wait... please wait ...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.


Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ .

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

* Estimated file size

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.


Mark all as unwatched Cancel

Congratulations

You have completed Working with Data on the Web.

Return to your organization's learning portal to continue training, or close this page.


OK
Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member ?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferences from the dropdown menu.

Continue to classic layout Stay on new layout
Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Learn more, save more. Upgrade today!

Get our Annual Premium Membership at our best savings yet.

Upgrade to our Annual Premium Membership today and get even more value from your lynda.com subscription:

“In a way, I feel like you are rooting for me. Like you are really invested in my experience, and want me to get as much out of these courses as possible this is the best place to start on your journey to learning new material.”— Nadine H.

Thanks for signing up.

We’ll send you a confirmation email shortly.


Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

   
submit Lightbox submit clicked
Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.