Web Development

Software-as-a-Service With Google App Engine

Written by Dr Mike Walmsley

August 19, 2016

Written by Dr Mike Walmsley

August 19, 2016

Building Your Own SaaS with Google App Engine

Software architects interested in building Software-as-a-Service (SaaS) have a wide variety of deployment options at their disposal, with multiple vendors providing services that cater to their individual needs and requirements. Google App Engine (GAE) is one of the more popular platforms in this arena, providing robust and scalable services inherent with its namesake. With GAE, developers can build a SaaS with the language of their choice while reaping the benefits of cloud computing in hosting their application: infinite and automatic horizontal scalability, metered usage and on-demand deployment of services.

PaaS versus IaaS: Google App Engine and Amazon Web Services

In cloud-computing, GAE is considered a Platform-as-a-Service (PaaS)--a model of computing that offers an environment for building and running custom applications to developers. The management and configuration of underlying hardware and software infrastructure is left to the service provider, allowing developers to focus on what they do best -- building software. In contrast to Amazon Web Services (AWS), an Infrastructure-as-a-Service (IaaS) provider, GAE does not provide access to low-level software, hardware and network devices and services. While both offer on-demand, pay-as-you-go computing, AWS offers deeper granular access and control of the underlying infrastructure. With GAE, virtual servers cannot be directly deployed and leased on demand, nor can developers configure and deploy their data center in the cloud, as with AWS.

That being said, infrastructure abstraction is usually a boon for software architects. Consider the plight of developers looking to build and host a PHP/MySQL-based SaaS with Amazon AWS; they would need to set up the physical Linux server, install the necessary software components (including the Apache, PHP and MySQL database), configure/manage security and set up the necessary auto-scaling and load balancing mechanisms. Granted, as of late, AWS has made these tasks easier with preconfigured options and templates, but developers still need some prerequisite systems administration knowledge to implement a SaaS development environment -- all of this before writing a single line of code. GAE gives developers the environment and tools to build their software while shielding them from the complexities of systems administration.

Google App Engine Features and Benefits

GAE supports Java, Python, PHP and Go, as well as the associated development frameworks for these languages -- namely, Spring, Struts and Django, among others. Traditional databases such as MySQL are supported, as well as next-generation NoSQL datastores and big data distributions such as MongoDB and Hadoop, respectively. Developers have at their disposal a wide variety of IDEs compatible with GAE, including NetBeans, Eclipse and Komodo.

Management takes place within GAE's admin console, the primary web interface through which developers access their application. Through the admin console, developers can perform basic configuration, create/disable/delete applications, view usage and performance statistics, and other maintenance tasks. A particular functionality of the admin console worth mentioning is the ability to set performance options. This essentially allows app optimization based on the developers' preference -- for example, tuning down the servers to an optimal pricing range to alleviate costs. Conversely, one may opt to configure their application for the highest availability and best response time possible. GAE's admin console allows these and many other configuration options.

Google promises 99.95% uptime in its SLA -- which translates to an average of less than five minutes of downtime per month. The performance and status of GAE services can be monitored publicly on GAE's system status page. If it is unable to meet the SLA, Google offers customers a certain amount of free service days per billing cycle.

Google App Engine Pricing

GAE applications are priced based on the computing resources they consume. Each account can host 25 free applications and an unlimited number of paid applications. Generally speaking, there is no cost to host applications until the resources within their free quotas are depleted. For example, each application is automatically allotted 5 GB of free storage (called a Google Cloud Storage bucket). According to Google, the free quota configurations for each application translate to roughly 5 million monthly page views for an efficiently run application. For over-quota and paid-for services, developers can view an updated GAE resource billing rate on the GAE pricing page.

Vendor Lock-In and Application Posterity

A major challenge for the cloud computing industry is the lack of standards and subsequent vendor lock-in. Because deploying with one provider means necessarily adopting their specific tools, protocols and operating environments, migrating off their platforms to another provider can prove daunting and expensive–in many cases, prohibitively so. GAE is no exception to this, as building an application in Google's PaaS involves writing software code customized to the nuances and specifics of the environment.

As cloud computing matures, however, industry standards will inevitably come about. With such huge market dominance and presence, Google will no doubt play a large role in whatever standards do form. So in this sense, GAE is a safer bet for PaaS customers than other platforms. In the interim, solutions such as AppScale offer open-source frameworks for building GAE applications that enable application portability, in case there is a need to migrate from Google's PaaS.

In short, GAE is an inviting PaaS for developers wishing to build their own cloud software in a robust and scalable environment. The platform offers an attractive complementary tier with a significant free usage quota and a competitive pricing model thereafter. Software architects using GAE to build and deploy applications can rest assured knowing that their SaaS is powered by the world's largest Internet company.

</div>
<div class="js comments_comment-content">
<div class="comments_comment-profile-info">
<span class="js comments_comment-profile-name">{{codeName}}</span>
        
<span class="js comments_comment-timestamp">{{timestamp}}</span>
      </div>
<p class="js comments_comment-text">{{comment}}
<div class="js comments_comment-buttons">
<span class="js comments_comment-replies-count" data-upvotes="{{upvotes}}">{{upvotes}}</span>
<button class="js comments_comment-up-vote"></button>
<button class="js comments_comment-reply"></button>
      </div>
    </div>
    {{#if parentID}}

{{else}}
<div class="js comments_comment-replies">
        
      </div>
    {{/if}}
  </div>

<div class="guiders-preview_content">
      {{#if complete}}{{else}}
<h4 class="guiders-preview_subtitle">{{subtitle}}</h4>
      {{/if}}
<h2 class="guiders-preview_title">{{{title}}} {{#if complete}}{{{message}}}{{/if}}</h2>
      {{#if complete}}{{else}}
<div class="guiders-preview_description"><p>{{{message}}}</div>
      {{/if}}
      {{#if complete}}
<div class="guiders-preview_social-buttons">
<a href="{{{twitterUrl}}}" target="_blank" onclick="ai.publish(true, null, event);" class="js guiders-preview_social-button -twitter"><i class="guiders-preview_social-icon icon-ca-twitter"></i> {{{twitter}}}</a>
<button class="js guiders-preview_social-button -facebook" onclick="ai.share.facebook();ai.publish(true, null, event);"><i class="guiders-preview_social-icon icon-ca-facebook"></i> {{{facebook}}}</button>
      </div>
      {{/if}}
    </div>
  </div>  
  {{#if tour}}
<p class="guiders-preview_action">{{{action}}}
  {{/if}}

{{#with pricing}}
<div id="pricing-popup">
<div class="pricing">
<h3 class="pricing_header">{{{header}}}</h3>
<p class="pricing_info">
    
    {{{text}}}

<div class="pricing_sections">
    {{#each sections}}
<div class="pricing_section-wrapper">
<div class="pricing_section">
<h3 class="pricing_section-header">{{header}}</h3>
          {{#if list}}
            {{#each list}}
<p class="pricing_section-info">{{this}}
            {{/each}}
          {{else}}
<p><span class="js- pricing_section-price">{{price}}</span> <span class="js- pricing_section-dom">{{dom}}</span> <span class="pricing_section-details">{{{details}}}</span>
<p class="pricing_section-info">{{{text}}}</p>
          {{/if}}
        </div>
        {{#if button1}}
<button class="pricing_button js signup-button">{{../button1}}</button>
        {{/if}}
        {{#if button2}}
<button class="pricing_button -red js-quote-button" data-analytic="submit-quote">{{../button2}}</button>
        {{/if}}
      </div>
    {{/each}}
    </div>
    
  </div>
</div>
{{/with}}

<div id="quote" class="js quote">
    <div class="pricing">
        <h3 class="pricing_header">{{{header}}}</h3>
        <p class="pricing_info">{{{text}}}</p>
        <div class="js pricing_sections">
        {{#each inputs}}
            <div class="pricing_input-wrapper {{size}}">
                <label class="pricing_label">{{placeholder}}</label>
                {{#if list}}
                    <select required name="{{name}}" class="js pricing_input">
                    {{#each list}}
                        <option value="{{#if name}}{{name}}{{/if}}">{{#if name}}{{name}}{{else}}{{this}}{{/if}}</option>
                    {{/each}}
                    </select>
                {{else}}
                    <input required type="{{#if type}}{{type}}{{else}}text{{/if}}" name="{{name}}" placeholder="{{placeholder}}" class="js pricing_input" value="{{value}}">
                {{/if}}
            </div>
        {{/each}}
        </div>
        <button class="js-teacher-quote pricing_button -red" data-analytic="submit-quote-button Quote">{{{button}}}</button>
  </div>
</div>

{{else}}
            {{{level}}}
          {{/if}}
        </h2>
<h3 class="track-popup_name">{{name}}</h3>
<p class="track-popup_description">{{description}}</p>
      </div>
    </div>
<div class="track-popup_header-right">
      {{{trackBox}}}
      
      {{#if secondaryButton}}
<a href="{{trackUrl}}" class="js track-popup_header-button">{{secondaryButton}}</a>
      {{/if}}
    </div>
  </div>
<div class="js track-popup_tracks">
    {{#each courses}}
<div class="track-popup_course">
<div class="track-popup_course-left">
<div class="track-popup_course-left-content">
<h2 class="track-popup_course-name">{{name}} {{type}}</h2>
<p class="track-popup_course-info">{{{description}}}</p>
          </div>
        </div>
<div class="track-popup_course-right">
          {{{boxHtml}}}
<a href="{{url}}" class="track-popup_course-button {{#if ../disableTrack}}is-disabled{{/if}}">{{../startNowButton}}</a>
        </div>
      </div>
    {{/each}}
  </div>
</div>

<div class="guides-info-section">
<h3 class="guides-info-section_heading">Key</h3>
<div class="js guides-info-section_key">
<p class="js guides-info-section_key-text">There are five types of lesson segments:</p>
<i class="guides-info-section_key-icon icon-ca-puzzle"></i> <span class="guides-info-section_type">Concepts</span>: <p class="guides-info-section_key-description">Notes on the concepts covered in the CA lessons.</p>
<i class="guides-info-section_key-icon icon-ca-rocket"></i> <span class="guides-info-section_type">Activities</span>: <p class="guides-info-section_key-description">Off-line and online activities to supplement the CA lessons. </p>
<i class="guides-info-section_key-icon icon-ca-ca-logo"></i> <span class="guides-info-section_type">CA Lessons</span> = <p> class="guides-info-section_key-description"Online lessons created by CA.</p>
<i class="guides-info-section_key-icon icon-ca-ca-logo"></i> <span class="guides-info-section_type">CA Projects</span> = <p class="guides-info-section_key-description">Online projects created by CA to reinforce your learning.</p>
<i class="guides-info-section_key-icon icon-ca-ca-logo"></i> <span class="guides-info-section_type">CA Quizzes</span> = <p class="guides-info-section_key-description">Online quizzes created by CA to review previous lessons.</p>
<p class="js guides-info-section_key-text">These small segments can be organised into three sections</p>
<p><span>Prior Learning</span>: These are recap/review segments</p>
<p><span>The Lesson</span>: This section leads you through the concepts, activities and CA lessons.</p> 
<p><span>Extension</span>: These are additional concepts, activities and lessons.</p>
  </div>
</div>

<div class="js purchase-item {{handler}} {{type}} {{#if purchased}}has-purchased{{/if}} {{#if isComplete}}is-complete{{/if}} {{#if new}}-new{{/if}}" {{#if id}} data-id="{{id}}" {{/if}} {{#if plan}} data-plan="{{plan}}" {{/if}} {{#if item}} data-item="{{item}}" {{/if}} {{#if url}} data-url="{{url}}" {{/if}}>
<img src="{{img}}" class="purchase-item_img">
<p class="purchase-item_header">{{title}}</p>
    {{#if description}}
<p class="purchase-item_text">{{description}}</p>
    {{/if}}
<p class="purchase-item_price"><span class="purchase-item_price-price {{#if salePrice}}-strikethrough{{/if}}">{{price}}</span> {{#if salePrice}}<span class="purchase-item_price-sale">{{salePrice}}</span>{{/if}}</p>
<p class="purchase-item_type">USD {{per}}</p>
<div class="purchase-item_buttons">
      {{#each buttons}}
        {{#if url}}
<a href="{{url}}" {{#if target}} target="{{target}}" {{/if}} class="js purchase-item_button external-link" title="{{text}}">{{text}}</a>
        {{else}}
<button class="js purchase-item_button {{hander}}" title="{{text}}">
<span class="js show-spinner">{{text}}</span>
<div class="js show-spinner" data-loader="circle-side"></div>
          </button>
        {{/if}}
      {{/each}}
    </div>
    {{#if info}}
<p class="purchase-item_info">{{info}}</p>
    {{/if}}
  </div>

<div class="js payment-form">
<div class="payment-form_content">
      {{{header}}}
<div class="payment-form_inputs">
<div class="js payment-form_input-wrapper -wide -radios">
<div class="js payment-form_option" data-type="ccd">
<label class="js payment-form_label" title="{{creditCard}}">{{creditCard}}</label> 
<span class="js payment-form_option-radio is-active"></span>
          </div>
<div class="js payment-form_option" data-type="paypal">
<label class="js payment-form_label" title="Paypal">Paypal</label> 
<span class="js payment-form_option-radio"></span> 
          </div>
        </div>
      </div>
<form class="js payment-form_input-wrapper -wide ccd_form">

<div class="payment-form_inputs">
<div class="payment-form_input-wrapper">
<label class="js payment-form_label">{{firstName}} *</label>
<input class="js payment-form_input -dark" type="text" data-recurly="first_name">

</div>
<div class="payment-form_input-wrapper">
<label class="js payment-form_label">{{lastName}} *</label>
<input class="js payment-form_input" type="text" data-recurly="last_name">

</div> 
        </div>
        
        {{#if includeSignup}}
<div class="js payment-form_inputs include-signup">
<div class="payment-form_input-wrapper">
<label class="js payment-form_label">{{email}} *</label>
<input class="js payment-form_input -dark" type="email">

</div>
<div class="payment-form_input-wrapper">
<label class="js payment-form_label">{{password}} *</label>
<input class="js payment-form_input" type="password">

</div> 
          </div>
        {{/if}}

<div class="payment-form_inputs">
<div class="payment-form_input-wrapper">
<label class="js payment-form_label">{{cardNumber}} *</label>
<div data-recurly="number"></div>
          </div>
<div class="payment-form_input-wrapper">
<label class="js payment-form_label">CVV *</label>
<div data-recurly="cvv"></div>
          </div> 
        </div>
<div class="payment-form_inputs">  
<div class="payment-form_input-wrapper">
<label class="js payment-form_label">{{month}} *</label>
<div data-recurly="month"></div>
          </div>
<div class="payment-form_input-wrapper">
<label class="js payment-form_label">{{year}} *</label>
<div data-recurly="year"></div>
          </div> 
<input type="hidden" name="recurly-token" data-recurly="token">

</div>
      </form>
<div class="payment-form_input-wrapper -wide js code">
<label class="js payment-form_label">{{couponCode}} </label>
<input type="text" name="coupon" class="js payment-form_input">

</div>
      
      {{#if includeSignup}}
<div class="js payment-form_input-wrapper include-signup">
<span class="js payment-form_option-checkbox policy-consent -dark" data-value="yes"></span>
<label class="js payment-form_label -checkbox -no-caps">
            {{{consent}}}
          </label>
        </div>
      {{/if}}

<div class="payment-form_buttons">
<div class="js payment-form_error"></div>
<button class="js payment-form_continue-button">
<span class="payment-form_continue-button-text js show-spinner">{{buttonText}}</span>
<div class="js show-spinner" data-loader="circle-side"></div>
        </button>
      </div>
    </div>
  </div>

<!doctype html>

<body class="slide -{slideType}">
<header class="slide_header"> 
<i class="slide_logo icon-ca-ca-logo"></i>
<span class="slide_title">{header}</span>
<div class="slide_controls">
<button id="presentation-jump" class="js slide_controls-button -jump" onclick="window.opener.ai.presentation.previousSlide(true)"><i class="slide_controls-icon icon-ca-left-arrow -double"></i><i class="slide_controls-icon icon-ca-left-arrow -double"></i></button>
<button id="presentation-prev" class="js slide_controls-button -prev" onclick="window.opener.ai.presentation.previousSlide(false)"><i class="slide_controls-icon icon-ca-left-arrow"></i></button>
<button id="presentation-next" class="js slide_controls-button -next" onclick="window.opener.ai.presentation.nextSlide(false)"><i class="slide_controls-icon icon-ca-right-arrow"></i></button>
<button id="presentation-skip" class="js slide_controls-button -skip" onclick="window.opener.ai.presentation.nextSlide(true)"><i class="slide_controls-icon icon-ca-right-arrow -double"></i><i class="slide_controls-icon icon-ca-right-arrow -double"></i></button>
</div>
</header>

{content}
</section>

</body>

<div class="js- projects-popup -{{type}}">
<div class="js- projects-popup_top">
    {{#if image}}
<div class="js- projects-popup_image-wrapper">
      {{#if promo}}{{else}}<div class="projects-popup_image-overlay"></div>{{/if}}
<img src="{{image}}" class="js- projects-popup_image">

</div>
    {{/if}}
<div class="projects-popup_info">
<div class="projects-popup_header">
<span class="js- projects-popup_title">{{{name}}}</span>
        {{#if time}}<span class="js- projects-popup_time">{{{time}}}</span>{{/if}}
      </div>
      {{#if description}}<p class="js- projects-popup_description">{{{description}}}</p>{{/if}}
      {{#compare progress '>' 0}}
        {{#equals type project}}
<div class="projects-popup_progress-bar">
<div class="js- projects-popup_progress {{{theme}}}" style="width: {{progress}}%"></div>
          </div>
        {{/equals}}
      {{/compare}}
    </div>
  </div>
<div class="js- projects-popup_bottom">
<div class="projects-popup_info">
<div class="projects-popup_header">
<span class="js- projects-popup_title">{{{name}}}</span>
        {{#if time}}<span class="js- projects-popup_time">{{{time}}}</span>{{/if}}
      </div>
      {{#if description}}<p class="js- projects-popup_description">{{{description}}}</p>{{/if}}
      {{#compare progress '>' 0}}
        {{#equals type project}}
<div class="projects-popup_progress-bar">
<div class="js- projects-popup_progress {{{theme}}}" style="width: {{progress}}%"></div>
          </div>
        {{/equals}}
      {{/compare}}
    </div>
    {{#if image}}
<div class="js- projects-popup_image-wrapper {{#if promo}}-promo{{/if}}">
      {{#if promo}}{{else}}<div class="projects-popup_image-overlay"></div>{{/if}}
<img src="{{image}}" class="js- projects-popup_image">

</div>
    {{/if}}
  </div>
</div>

<div class="pdf-header_title">{{name}} Answers</div>
</header>
<section class="pdf-section">
  {{#each lessons}}
<div class="pdf-section_lesson-title">{{lessonNo}}. {{{title}}}</div>
    {{#each tasks}}
<div class="pdf-section_task">
<h2 class="pdf-section_task-title">{{lessonNo}}.{{taskNo}}. {{{objective}}}</h2>
        {{#if solution}}
<pre class="prettyprint pdf-section_code">{{{solution}}}</pre>
        {{else if questions}}
<p>Review Quiz Questions:<br>

<ol class="pdf-section_list">
            {{#each questions}}
<li class="pdf-section_list-item">{{{answer}}}
            {{/each}}
          </ol>
        {{else if answer}}
<p>{{{answer}}}
        {{/if}}
      </div>
    {{/each}}
  {{/each}}
</section>
<script>addEventListener("load", function (event) { prettyPrint() }, false);</script>

<div class="pdf-header_title">{{name}} Instructions</div>
</header>
<section class="pdf-section">
  {{#each lessons}}
<div class="pdf-section_lesson-title">{{lessonNo}}. {{{title}}}</div>
    {{#each tasks}}
<div class="pdf-section_task">
<h2 class="pdf-section_task-title">{{lessonNo}}.{{taskNo}}. {{{objective}}}</h2>
        {{#if goal}}
          {{{goal}}}
        {{/if}}
        {{#if questions}}
<p>Review Quiz Questions:<br>

<ol class="pdf-section_list">
            {{#each questions}}
<li class="pdf-section_list-item">{{{question}}}
            {{/each}}
          </ol>
        {{/if}}
        {{#if answer}}
<p>{{{answer}}}
        {{/if}}
      </div>
    {{/each}}
  {{/each}}
</section>
<script>addEventListener("load", function (event) { prettyPrint() }, false);</script>

{{#each this}}
<div class="course-box -{{theme}}">
<div class="course-box_content">
<div class="course-box_top-bar">
<div class="course-box_top-bar-left">
<span class="course-box_type">{{level}}</span>
<span class="course-box_title">{{{name}}}</span>
          </div>
<div class="course-box_top-bar-right">
<span>{{hours}} HRS</span>
<span class="course-box_top-post"></span>
<span class="course-box_preview-btn">Preview <i class="icon-ca-play-full course-box_preview-btn-triangle"></i></span>
          </div>
        </div>
<div class="course-box_details">
<p class="course-box_description">{{{description}}}</p>
<div class="course-box_buttons">
<div class="course-box_buttons-left">
              {{#if progress}}
<a href="{{url}}" class="button course-box_resume-button">Resume</a>
              {{else}}
<a href="{{url}}" class="button course-box_resume-button">Start</a>
              {{/if}}
            </div>
<div class="course-box_buttons-right">
<button class="button course-box_details-button">View Details</button>
<div class="course-box_content-footer">
<div class="course-box_footer-info">
                  
                </div>
<div class="course-box_footer-info">
                  {{difficulty}}
                </div>
<div class="course-box_footer-info">
                  {{taskCount}} Tasks
                </div>
              </div>
            </div>
          </div>
<div class="course-box_footer">
<div class="course-box_footer-info">
                  
            </div>
<div class="course-box_footer-info">
              {{difficulty}}
            </div>
<div class="course-box_footer-info">
              {{taskCount}} Tasks
            </div>
          </div>
        </div>
      </div>
<div class="course-box_preview">
        {{#if image}}
<div class="course-box_preview-image">
<image src="{{image}}" class="course-box_preview-image-image">
          </div>
        {{else}}
<div class="course-box_preview-video">
<div class="course-box_preview-video-play">
<div class="course-box_preview-video-play-icon">
<i class="icon-ca-play"></i>
              </div>
            </div>
          </div>  
        {{/if}}
      </div>
<div class="course-box_percentage-top">
<span class="course-box_percentage-circle"></span>
<div class="course-box_percentage-percent-wrapper">
<span class="course-box_percentage-percent" style="width: {{progress}}%"></span>
        </div>
<i class="icon-ca-ribbon-small{{ribbon}} course-box_percentage-ribbon -percent{{progress}}"></i>
      </div>
<div class="course-box_percentage-bottom">
<span class="course-box_percentage-circle"></span>
<div class="course-box_percentage-percent-wrapper">
<span class="course-box_percentage-percent" style="width: {{progress}}%"></span>
        </div>
<i class="icon-ca-star course-box_percentage-star"></i>
<i class="icon-ca-ribbon-small{{ribbon}} course-box_percentage-ribbon -percent{{progress}}"></i>
      </div>
    </div>
  {{/each}}

<!doctype html>
<style>
    html {
        font-size: 0 !important;
    }

.t-quiz > * {
        font-size: initial !important;
        margin-bottom: 0 !important;
    }
</style>
<link rel="stylesheet" href="/dist/style.min.css?0.052468554855654936">
{{#each css}}
{{/each}}
<script>
    window.CHINA = true;
    window._MIN_ = '';
    window.CURRENT_VERSION = '1';
    window.IFRAME = true;
</script>
<script src="/js/jquery.js?v=yOKaW5htuhTZ_ZEWQ-n3h0ennNBkN3zmVmtasuaxVKk"></script>
<script src="/js/jquery-ui.min.js?v=_CzTpg6QTje_ISm9yjDTYORSNm5j6oJ56j0nP6TCzhc"></script>

download
new file
upload media
rename

delete

Keyboard Shortcuts

Toolbox

My Notes

Loading Notes...

<!doctype html>

<title>{title}</title>
<meta name="viewport" content="width=device-width">

<!doctype html>

<title>{title}</title>
<meta name="viewport" content="width=device-width">

canvas {
        background-color: white;
        border: 1px solid black;
    }

table {
        position: absolute;
        width: 360px;
        height: 300px;
        background-color: black;
        top: 50%;
        opacity: 0.9;
        margin: auto;
        margin-top: -150px;
        left: 0;
        right: 0;
        cursor: pointer;
    }

td {
        padding: 24px;
    }

p {
        line-height: 28px;
    }

.social-share img {
        width: 20px;
        height: 20px;
        vertical-align: middle;
    }

h1 {
        font-size: 28px;
    }

#code {
        display: none;
    }
</style>

<a href="{protocol}//{domain}"><img src="{protocol}//{domain}/images/logo-full.png"
                                    alt="Code Avengers logo" width="200"
                                    style="margin-top: 20px;"></a>
<br><span>presents</span>
<h1>"{title}" by {codename}</h1>
<iframe id="myApp" {events} width="{width}" height="{height}"></iframe>
<p>Learn to make apps, games and websites with <a style="color: #ef5555" href="/">CodeAvengers.com</a>

<table onclick="this.style.display='none';displayApp()">
<tr>
<td>  
<h2>Instructions</h2>
<p>{instructions}
  
<p>
<b>Click to start</b>

</table>

<div id="code">
{content}
</div>

<!doctype html>

<title>{title}</title>
<meta name="viewport" content="width=device-width">

canvas {
        background-color: white;
        border: 1px solid black;
    }

td {
        padding: 24px;
    }

p {
        line-height: 28px;
    }

.social-share img {
        width: 20px;
        height: 20px;
        vertical-align: middle;
    }

h1 {
        font-size: 28px;
    }

.fullscreen footer, .fullscreen header {
        display: none;
    }

.fullscreen table {
        top: 170px;
    }
</style>

<header>
<a href="{protocol}//{domain}"><img src="{protocol}//{domain}/images/logo-full.png"
                                    alt="Code Avengers logo" width="200"
                                    style="margin-top: 20px;"></a>
<br><span>presents</span>
<h1>"{title}" by {codename}</h1>
</header>

<canvas id="paperscriptCanvas" tabindex="0"
        {canvasEvents} width="{width}" height="{height}"></canvas>

<footer>
<p>Learn to make apps, games and websites with <a style="color: #ef5555;" href="/">CodeAvengers.com</a>

</footer>

<tr>
<td>  
<h2>Instructions</h2>
<p>{instructions}
  
<p>
<b>Click to start</b>

</table>

<title>Code Avengers Profile</title>
<meta name="viewport" content="width=device-width">

<header>
<a href="https://codeavengers.com"><img src="/images/logo.png"></a>
<a href="/m/about.html">About us</a> | <a href="http://blog.codeavengers.com">Blog</a>
</header>
<section>
<h2>My Profile</h2>
<img src="/images/profile9.png" width="180" alt="profile">

</a>
<strong>Name</strong>: Supacoda<br>

<strong>Birthday</strong>: 14<sup>th</sup> April<br>

<strong>Height</strong>: 1.79m<br>

<h3>My Super Powers</h3>
<p>I have super endurance, once I start, I keep going until I finish!
	
<p>I will eat anything and lots of it... if there is a plate with food on it, I will eat it!