Eldora  Bradtke

Eldora Bradtke

1597206720

How to Generate Server-Side PDF Reports With Puppeteer, D3 & Handlebars

Looking for a way to create a design-heavy, data-driven, beautifully styled PDF report—server-side with similar tools to what you are already using on the front-end? Stop your Google search. You’ve come to the right place. I was in the same boat as you a few months ago while helping a client with this exact problem. In order to accomplish this feat, I developed a four-step solution using Puppeteer, D3, and handlebars. In this post, I’ll give you step by step instructions on creating server-side pdf reports. Let’s dive in.

An example of a PDF page generated using this method.

An example of a PDF page generated using this method.

In this post, we’ll cover:

  • Setting up Puppeteer and Handlebars
  • Creating a generator to make our PDF
  • Building out a handlebars template
  • Adding the finishing touches

The CHallenges of Creating These PDF Reports:

Because we’re using a template framework to access standard web technologies along with Puppeteer to manage the PDF, we’ll need to think about these things during development:

  • Pages will manually need to be constrained.
  • We won’t have access to CSS media props other than “screen.” (no “page-break-after” or the print media type)
  • We won’t be able to use dev tools to debug irregularities once the PDF is compiled and rendered.
  • Puppeteer itself adds extra build time and size to your deployments.
  • Generating a report can take a while depending on file size.

For this example, let’s assume we already have the base of our project up and running Node/Express, and some type of ORM and DB solutions. We’re all set to feed our sweet, sweet data into a report.

The Tools We Need to Make This Happen

Handlebars

HTML templating framework from the Mustache family. This allows for Partial templating (fancy talk for components) and custom and built-in helper functionality to expand on our logic.

npm install handlebars

Example using partials and built-in blocks

{{#each poleComparison as |page|}}
<div class="page">
  {{#each page.pairs as |polePair|}}
    {{> comparison-header polePair=polePair }}
        <div class="comparison-tables">
            {{> comparison-body polePair=polePair }}
        </div>
  {{/each}}
  {{> footer @root }}
</div>
{{/each}}

Puppeteer

A node library that will provide us access to a chrome headless instance for generating the PDF based on our compiled Handlebars templates.

npm install puppeteer

A list of use cases:

  • Generate screenshots and PDFs of pages.
  • Crawl a SPA (Single-Page Application) and generate pre-rendered content (i.e. “SSR” (Server-Side Rendering)).
  • Create an up-to-date, automated testing environment.
  • Test Chrome Extensions.

D3 (Data-Driven Documents)

D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS. D3’s emphasis on web standards gives you the full capabilities of modern browsers without tying yourself to a proprietary framework, combining powerful visualization components and a data-driven approach to DOM manipulation.

<script src="https://d3js.org/d3.v5.min.js"></script> 

#javascript #server-side #d3.js #js #handlebars #puppeteer #server-side development

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Buddha Community

How to Generate Server-Side PDF Reports With Puppeteer, D3 & Handlebars
Eldora  Bradtke

Eldora Bradtke

1597206720

How to Generate Server-Side PDF Reports With Puppeteer, D3 & Handlebars

Looking for a way to create a design-heavy, data-driven, beautifully styled PDF report—server-side with similar tools to what you are already using on the front-end? Stop your Google search. You’ve come to the right place. I was in the same boat as you a few months ago while helping a client with this exact problem. In order to accomplish this feat, I developed a four-step solution using Puppeteer, D3, and handlebars. In this post, I’ll give you step by step instructions on creating server-side pdf reports. Let’s dive in.

An example of a PDF page generated using this method.

An example of a PDF page generated using this method.

In this post, we’ll cover:

  • Setting up Puppeteer and Handlebars
  • Creating a generator to make our PDF
  • Building out a handlebars template
  • Adding the finishing touches

The CHallenges of Creating These PDF Reports:

Because we’re using a template framework to access standard web technologies along with Puppeteer to manage the PDF, we’ll need to think about these things during development:

  • Pages will manually need to be constrained.
  • We won’t have access to CSS media props other than “screen.” (no “page-break-after” or the print media type)
  • We won’t be able to use dev tools to debug irregularities once the PDF is compiled and rendered.
  • Puppeteer itself adds extra build time and size to your deployments.
  • Generating a report can take a while depending on file size.

For this example, let’s assume we already have the base of our project up and running Node/Express, and some type of ORM and DB solutions. We’re all set to feed our sweet, sweet data into a report.

The Tools We Need to Make This Happen

Handlebars

HTML templating framework from the Mustache family. This allows for Partial templating (fancy talk for components) and custom and built-in helper functionality to expand on our logic.

npm install handlebars

Example using partials and built-in blocks

{{#each poleComparison as |page|}}
<div class="page">
  {{#each page.pairs as |polePair|}}
    {{> comparison-header polePair=polePair }}
        <div class="comparison-tables">
            {{> comparison-body polePair=polePair }}
        </div>
  {{/each}}
  {{> footer @root }}
</div>
{{/each}}

Puppeteer

A node library that will provide us access to a chrome headless instance for generating the PDF based on our compiled Handlebars templates.

npm install puppeteer

A list of use cases:

  • Generate screenshots and PDFs of pages.
  • Crawl a SPA (Single-Page Application) and generate pre-rendered content (i.e. “SSR” (Server-Side Rendering)).
  • Create an up-to-date, automated testing environment.
  • Test Chrome Extensions.

D3 (Data-Driven Documents)

D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS. D3’s emphasis on web standards gives you the full capabilities of modern browsers without tying yourself to a proprietary framework, combining powerful visualization components and a data-driven approach to DOM manipulation.

<script src="https://d3js.org/d3.v5.min.js"></script> 

#javascript #server-side #d3.js #js #handlebars #puppeteer #server-side development

Laravel 8 PDF Generate Example

Today, we will see Laravel 8 PDF Generate Example.

For generating PDF file we will use Laravel-dompdf package, it is create pdf file and also provide to download file functionalities it is very easy to generate pdf in laravel 8, i will give you example in very simple way to generate pdf file and download in your system.

So, Let’s start and see how to generate pdf in laravel 8.

Laravel 8 PDF Generate Example

https://websolutionstuff.com/post/laravel-8-pdf-generate-example


Read Also : Send Mail Example In Laravel 8

https://websolutionstuff.com/post/send-mail-example-in-laravel-8


Read Also : How To Generate QRcode In Laravel

https://websolutionstuff.com/post/how-to-generate-qrcode-in-laravel


Read Also : How To Generate Barcode In Laravel

https://websolutionstuff.com/post/how-to-generate-barcode-in-laravel

#laravel 8 pdf generate example #laravel 8 #pdf generate #generate pdf in laravel 8 #laravel-dompdf package #how to generate pdf in laravel 8

Cayla  Erdman

Cayla Erdman

1594369800

Introduction to Structured Query Language SQL pdf

SQL stands for Structured Query Language. SQL is a scripting language expected to store, control, and inquiry information put away in social databases. The main manifestation of SQL showed up in 1974, when a gathering in IBM built up the principal model of a social database. The primary business social database was discharged by Relational Software later turning out to be Oracle.

Models for SQL exist. In any case, the SQL that can be utilized on every last one of the major RDBMS today is in various flavors. This is because of two reasons:

1. The SQL order standard is genuinely intricate, and it isn’t handy to actualize the whole standard.

2. Every database seller needs an approach to separate its item from others.

Right now, contrasts are noted where fitting.

#programming books #beginning sql pdf #commands sql #download free sql full book pdf #introduction to sql pdf #introduction to sql ppt #introduction to sql #practical sql pdf #sql commands pdf with examples free download #sql commands #sql free bool download #sql guide #sql language #sql pdf #sql ppt #sql programming language #sql tutorial for beginners #sql tutorial pdf #sql #structured query language pdf #structured query language ppt #structured query language

Amara  Legros

Amara Legros

1594942500

How to Generate Server-Side PDF reports with Puppeteer, D3, Handlebars

Looking for a way to create a design-heavy, data-driven, beautifully styled PDF report — server-side with similar tools to what you are already using on the front-end? Stop your Google search. You’ve come to the right place. I was in the same boat as you a few months ago while helping a client with this exact problem. In order to accomplish this feat, I developed a four-step solution using Puppeteer, D3, and handlebars. In this post, I’ll give you step by step instructions on creating server-side pdf reports. Let’s dive in.

Example of a D3 generated page using handlebars and puppeteer

In this post, we’ll cover

  • Setting up Puppeteer & Handlebars
  • Creating a generator to make our PDF
  • Building out a handlebars template
  • Adding the finishing touches

The challenges of creating these PDF reports:

Because we’re using a template framework to access standard web technologies along with puppeteer to manage the pdf, we’ll need to think about these things during development:

  • Pages will manually need to be constrained.
  • We won’t have access to css media props other than “screen.” (no “page-break-after” or the print media type)
  • We won’t be able to use dev tools to debug irregularities once the PDF is compiled and rendered.
  • Puppeteer itself adds extra build time and size to your deployments.
  • Generating a report can take a while depending on file size.

#puppeteer #web-development #nodejs #javascript #d3js

Ray  Patel

Ray Patel

1625843760

Python Packages in SQL Server – Get Started with SQL Server Machine Learning Services

Introduction

When installing Machine Learning Services in SQL Server by default few Python Packages are installed. In this article, we will have a look on how to get those installed python package information.

Python Packages

When we choose Python as Machine Learning Service during installation, the following packages are installed in SQL Server,

  • revoscalepy – This Microsoft Python package is used for remote compute contexts, streaming, parallel execution of rx functions for data import and transformation, modeling, visualization, and analysis.
  • microsoftml – This is another Microsoft Python package which adds machine learning algorithms in Python.
  • Anaconda 4.2 – Anaconda is an opensource Python package

#machine learning #sql server #executing python in sql server #machine learning using python #machine learning with sql server #ml in sql server using python #python in sql server ml #python packages #python packages for machine learning services #sql server machine learning services