Real time charts with Laravel Livewire & ChartJS

I’ve recently been trying out Laravel Livewire (a new JS framework for adding front-end interactivity to your Laravel applications) by updating a personal project of mine, a home network monitoring tool. This post explains how I built auto-updating (“real time”) charts using Laravel Livewire and ChartJS.

Introduction

Before trying Livewire, I was using VueJS & Axios for interactive UI components such as auto-updating dashboard panels (e.g. WAN / broadband status & speeds, notifications etc) and tables of data with tools for sorting and filtering. Replacing these using Livewire has been super easy so far!

On my main dashboard there are also numerous ChartJS charts which automatically refresh every X seconds to show new any data that has arrived (e.g. WAN / broadband speed tests, number of DNS queries etc). As it’s only a small side project, I’d already decided that I was happy with polling the server for updates, rather than complicating my setup by using Web Sockets.

Luckily Laravel Livewire has a polling feature built in - simply adding wire:poll.10s to the root element in the component will make Livewire update the component every 10 seconds. This works great in most circumstances, however it wasn’t working with my charts as the JS had already run to initialise the chart and it wasn’t recreating them.

There is nothing in the Livewire docs that covers working with charts. After doing a bit of research, I came across issue #774 in GitHub, which discussed a way of updating ChartJS instances by using Livewire events. I used this as the base idea for my implementation, but adding a few improvements.

How it works

• On the first render of the Livewire component, the initial chart data is retrieved from the database and combined with the configuration needed to render the chart, and is pushed into the blade view file as JavaScript to run on the initial page load. When viewed in a browser, the page loads, the JavaScript runs and the chart appears. The Livewire component remembers that the chart has been initially rendered by storing it’s ID and a MD5 hash of the data.
• On subsequent renders of the component (triggered by the Livewire polling), the database is queried again to retrieve the data and another MD5 hash generated from it. The new hash is compared to the old, and only if it is different (meaning the data has changed), an event is emitted from the server side containing the updated dataset(s). The JavaScript then receives this event and uses the ChartJS API to update the rendered chart in the browser. The updated MD5 hash is remembered by the component for the next render.

#laravel #web development #chartjs #laravel livewire

What is GEEK

Buddha Community

Laravel 8 Livewire Form Wizard Tutorial Example

Laravel 8 livewire form wizard example. In tutorial i will show you how to implement multi step form or form wizard using livewire package in laravel 8 app from scratch.

Laravel 8 Livewire Wizard Form Example Tutorial

Follow the below given steps and easy implement multi step form or form wizard in laravel 8 app with livewire:

• Step 1: Install Laravel 8 App
• Step 2: Connecting App to Database
• Step 3: Create Model & Migration For File using Artisan
• Step 4: Install Livewire Package
• Step 5: Create Form Wizard Components using Artisan
• Step 6: Add Route For Livewire Form Wizard
• Step 7: Create View File
• Step 8: Run Development Server

https://www.tutsmake.com/laravel-8-livewire-form-wizard-tutorial/

#laravel multi step form wizard #laravel 8 livewire multi step form wizard #livewire multi step form bootstrap laravel #laravel multi step form wizard with livewire #laravel livewire multi step form example #laravel livewire wizard form example

Real time charts with Laravel Livewire & ChartJS

I’ve recently been trying out Laravel Livewire (a new JS framework for adding front-end interactivity to your Laravel applications) by updating a personal project of mine, a home network monitoring tool. This post explains how I built auto-updating (“real time”) charts using Laravel Livewire and ChartJS.

Introduction

Before trying Livewire, I was using VueJS & Axios for interactive UI components such as auto-updating dashboard panels (e.g. WAN / broadband status & speeds, notifications etc) and tables of data with tools for sorting and filtering. Replacing these using Livewire has been super easy so far!

On my main dashboard there are also numerous ChartJS charts which automatically refresh every X seconds to show new any data that has arrived (e.g. WAN / broadband speed tests, number of DNS queries etc). As it’s only a small side project, I’d already decided that I was happy with polling the server for updates, rather than complicating my setup by using Web Sockets.

Luckily Laravel Livewire has a polling feature built in - simply adding wire:poll.10s to the root element in the component will make Livewire update the component every 10 seconds. This works great in most circumstances, however it wasn’t working with my charts as the JS had already run to initialise the chart and it wasn’t recreating them.

There is nothing in the Livewire docs that covers working with charts. After doing a bit of research, I came across issue #774 in GitHub, which discussed a way of updating ChartJS instances by using Livewire events. I used this as the base idea for my implementation, but adding a few improvements.

How it works

• On the first render of the Livewire component, the initial chart data is retrieved from the database and combined with the configuration needed to render the chart, and is pushed into the blade view file as JavaScript to run on the initial page load. When viewed in a browser, the page loads, the JavaScript runs and the chart appears. The Livewire component remembers that the chart has been initially rendered by storing it’s ID and a MD5 hash of the data.
• On subsequent renders of the component (triggered by the Livewire polling), the database is queried again to retrieve the data and another MD5 hash generated from it. The new hash is compared to the old, and only if it is different (meaning the data has changed), an event is emitted from the server side containing the updated dataset(s). The JavaScript then receives this event and uses the ChartJS API to update the rendered chart in the browser. The updated MD5 hash is remembered by the component for the next render.

#laravel #web development #chartjs #laravel livewire

4 Real-Time Data Analytics Predictions for 2021

Data management, analytics, data science, and real-time systems will converge this year enabling new automated and self-learning solutions for real-time business operations.

The global pandemic of 2020 has upended social behaviors and business operations. Working from home is the new normal for many, and technology has accelerated and opened new lines of business. Retail and travel have been hit hard, and tech-savvy companies are reinventing e-commerce and in-store channels to survive and thrive. In biotech, pharma, and healthcare, analytics command centers have become the center of operations, much like network operation centers in transport and logistics during pre-COVID times.

While data management and analytics have been critical to strategy and growth over the last decade, COVID-19 has propelled these functions into the center of business operations. Data science and analytics have become a focal point for business leaders to make critical decisions like how to adapt business in this new order of supply and demand and forecast what lies ahead.

In the next year, I anticipate a convergence of data, analytics, integration, and DevOps to create an environment for rapid development of AI-infused applications to address business challenges and opportunities. We will see a proliferation of API-led microservices developer environments for real-time data integration, and the emergence of data hubs as a bridge between at-rest and in-motion data assets, and event-enabled analytics with deeper collaboration between data scientists, DevOps, and ModelOps developers. From this, an ML engineer persona will emerge.

#analytics #artificial intelligence technologies #big data #big data analysis tools #from our experts #machine learning #real-time decisions #real-time analytics #real-time data #real-time data analytics

How To Create Dynamic Pie Chart In Laravel 8

Hello Friends,

In this tutorial I will show you how to create dynamic pie chart in laravel 8, Pie charts are use to representing data in graphics view, for creation of dynamic pie chart example you need to create model, controller, route, blade file and database, So if you will follow my tutorial step by step then defiantly you will get output of dynamic pie chart example.

So, let’s start.

How To Create Dynamic Pie Chart In Laravel 8

https://websolutionstuff.com/post/how-to-create-dynamic-pie-chart-in-laravel-8

#how to create dynamic pie chart in laravel 8 #laravel #laravel8 #dynamic pie chart #pie chart #pie chart in laravel 8

Php how to delete multiple rows through checkbox using ajax in laravel

First thing, we will need a table and i am creating products table for this example. So run the following query to create table.

CREATE TABLE `products` (
 `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
 `name` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
 `description` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
 `created_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP,
 `updated_at` datetime DEFAULT NULL,
 PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci

Next, we will need to insert some dummy records in this table that will be deleted.

INSERT INTO `products` (`name`, `description`) VALUES

('Test product 1', 'Product description example1'),

('Test product 2', 'Product description example2'),

('Test product 3', 'Product description example3'),

('Test product 4', 'Product description example4'),

('Test product 5', 'Product description example5');

Now we are redy to create a model corresponding to this products table. Here we will create Product model. So let’s create a model file Product.php file under app directory and put the code below.

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Product extends Model
{
    protected $fillable = [
        'name','description'
    ];
}

Step 2: Create Route

Now, in this second step we will create some routes to handle the request for this example. So opeen routes/web.php file and copy the routes as given below.

routes/web.php

Route::get('product', 'ProductController@index');
Route::delete('product/{id}', ['as'=>'product.destroy','uses'=>'ProductController@destroy']);
Route::delete('delete-multiple-product', ['as'=>'product.multiple-delete','uses'=>'ProductController@deleteMultiple']);

#laravel #delete multiple rows in laravel using ajax #laravel ajax delete #laravel ajax multiple checkbox delete #laravel delete multiple rows #laravel delete records using ajax #laravel multiple checkbox delete rows #laravel multiple delete