How to build a Decentralized Blockchain Network in Javascript

In previous post, we have a single Blockchain and the only way to access it is through API from a single server. It is centralized and not good because this API totally controls the whole Blockchain with all data inside it. Today we will build a decentralized Blockchain network that has many different instances of the API. So instead of just having our Blockchain hosted on a single centralized node, it is hosted across a decentralized network which will be very powerful because of the security: we don’t have to trust only one single entity.

Previous Post: How to create Blockchain API in Javascript

Next Post: How to Synchronize Blockchain Network in JavaScript

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SpringBoot – Upload/Download MultipartFile to MySQL – Bootstrap 4 + JQuery Ajax + Spring Hibernate JPA @Lob Example

In the tutorial, we will show you how to create a SpringBoot project to download/upload MultipartFile to MySQL using Bootstrap 4, JQuery Ajax, Spring Hibernate JPA @Lob

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SpringJPA – save/retrieve Files/Images to MySQL database with @Lob annotation

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Spring Hibernate JPA @Lob – Upload/Download MultipartFile to PostgreSQL – SpringBoot + JQuery Ajax + Bootstrap 4 Example

In the tutorial, we will show you how to create a SpringBoot project to download/upload MultipartFile to PostgreSQL using Spring Hibernate JPA, JQuery Ajax, Bootstrap 4.

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Spring Hibernate JPA – Upload/Download File/Image to PostgreSQL with @Lob

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Spring Hibernate JPA – Upload/Download File/Image to PostgreSQL with @Lob Example

In the tutorial, we guide how to upload/download file to PostGreSQL using Spring Hibernate JPA with @Lob annotation.

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Angular 6 – Use Angular Elements to build Custom Elements example

Custom Element is a web standard with new HTML element which allows us to define a tag whose content is created and controlled by JavaScript code in a framework-agnostic way. Custom Element bootstraps itself. That means it starts automatically when added to the DOM, and is automatically destroyed when removed from the DOM. It looks and behaves like any HTML element without need to know anything about Angular, component’s data structures or implementation. This feature is currently supported by Chrome, Opera, and Safari, and available in other browsers through polyfills. In the tutorial, we will show you way to build a Custom Element from Angular Component using Angular Elements.

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NodeJS – GridFS APIs Upload/Download Files to MongoDB – Mongoose

In the tutorial, we show you how to build a NodeJS web-application that uses stream-based GridFS APIs with Mongoose to upload/download files to MongoDB.

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NodeJS – use Mongoose to save Files/Images to MongoDB
Crud RestAPIs with NodeJS/Express, MongoDB using Mongoose

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NodeJS/Express – Upload Text-Fields + MultipartFile with Multer, Jquery Ajax, Bootstrap 4

In the tutorial, we show how to upload multipart/form-data with text fields and attached file in NodeJS/Express web-application using Multer, JQuery Ajax, Bootstrap 4.

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NodeJS/Express – Upload/Download MultipartFiles/Images – Multer + JQuery Ajax + Bootstrap

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Spring Boot WebSocket with Angular 5 Client | SockJS + STOMP

The WebSocket protocol provides new capability for web applications: full-duplex, two-way communication. So in the system where the client and server need to exchange data at high frequency and with low latency, WebSocket is the best solution. In this tutorial, we’re gonna create a Spring Boot Application that uses WebSocket protocol to communicate with Angular 5 Client.

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NodeJS/Express – Upload/Download MultiparFile to MySQL – Multer + Sequelize + JQuery Ajax + Bootstrap

In the tutorial, we show you how to upload/download MultipartFile to MySQL in NodeJS/Express web-application using Multer middleware, Sequelize ORM, JQuery Ajax & Bootstrap view.

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NodeJS/Express – RestAPI to Upload Multipart File to MySQL using Multer + Sequelize ORM
NodeJS/Express – Upload/Download MultipartFiles/Images – Multer + JQuery Ajax + Bootstrap

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NodeJS/Express – Upload/Download MultipartFiles/Images – Multer + JQuery Ajax + Bootstrap

In the tutorial, we show how to build a NodeJS/Express web-application to upload MultipartFile-s/Images by Multer middleware, JQuery Ajax and Bootstrap view.

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Multer – Build RestAPI to upload a MultipartFile to NodeJS/Express
Integrate NodeJS/Express – JQuery Ajax POST/GET – Bootstrap view example
NodeJS/Express – Upload Text-Fields + MultipartFile with Multer, Jquery Ajax, Bootstrap 4

[Continue reading…] “NodeJS/Express – Upload/Download MultipartFiles/Images – Multer + JQuery Ajax + Bootstrap”

NodeJS/Express – RestAPI to Upload Multipart File to MySQL using Multer + Sequelize ORM

In the tutorial, we show how to build a NodeJS/Express RestAPI to upload Multipart Files/Images to MySQL using Multer middleware and Sequelize ORM.

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Multer – Build RestAPI to upload a MultipartFile to NodeJS/Express

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Multer – Build RestAPI to upload a MultipartFile to NodeJS/Express

In the tutorial, we show how to use Multer middleware for building a RestAPI to upload MultipartFile to NodeJS/Express web-application.

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NodeJs/Express RestAPIs – POST/GET/PUT/DELETE requests

[Continue reading…] “Multer – Build RestAPI to upload a MultipartFile to NodeJS/Express”

Bootstrap 4 Card Images – NodeJS/Express RestAPIs

In the tutorial, we will show you how to use new feature Bootstrap 4 Card Images to create cards with images from NodeJS/Express RestAPIs.

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NodeJS/Express – Bootstrap Image example

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Tensorflow.js Tutorial – Introduction to TensorFlow.js and Core Concepts

TensorFlow is one of the popular libraries for developing machine learning and deep neural network models in various domains which is used within Google for research and product development. TensorFlow.js, web version of Tensorflow, is an open-source library that we can use to define, train, and run machine learning models entirely in the browser, using Javascript and a high-level layers API. This tutorial is an introduction to TensorFlow.js and its Core Concepts.

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NodeJS/Express + Bootstrap Filter List + JQuery example

In the tutorial, we show how to implement Bootstrap Filter List with JQuery and NodeJS/Express RestAPIs.

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NodeJs/Express RestAPIs – POST/GET/PUT/DELETE requests
NodeJS/Express + Bootstrap Filter Table + JQuery

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NodeJS/Express + Bootstrap Filter Table + JQuery example

In the tutorial, we show how to implement Bootstrap Filter Table with JQuery and NodeJS/Express RestAPIs.

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NodeJs/Express RestAPIs – POST/GET/PUT/DELETE requests
NodeJS/Express Rest APIs + Bootstrap Table + Ajax JQuery

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NodeJS/Express Rest APIs + Bootstrap Table + AngularJS example

In the tutorial, we show how to use Bootstrap Table & AngularJS to display data from NodeJS/Express RestAPIs.

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NodeJs/Express RestAPIs – POST/GET/PUT/DELETE requests
NodeJS/Express – POST/GET to MySQL using Sequelize – AngularJS + Bootstrap form

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NodeJS/Express Rest APIs + Bootstrap Table + Ajax JQuery example

In the tutorial, we show how to use Bootstrap Table & Ajax JQuery to show data from NodeJS/Express RestAPIs.

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Integrate NodeJS/Express – JQuery Ajax POST/GET – Bootstrap view
NodeJs/Express RestAPIs – POST/GET/PUT/DELETE requests

[Continue reading…] “NodeJS/Express Rest APIs + Bootstrap Table + Ajax JQuery example”