React Node.js MongoDB CRUD Example – MERN Stack

Tutorial: “React Node.js MongoDB CRUD Example – MERN Stack Application”

In the tutorial, I introduce how to build an “React.js Nodejs CRUD MongoDB Example” project with the help of Ajax to POST/GET/PUT/DELETE requests with step by step coding examples:

– Nodejs project produces CRUD RestAPIs with MongoDB database using the supporting of Mongoose ODM.
– React.js project will consume the Nodejs CRUD RestAPIs by Ajax then show up on Reactjs component’s views.

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Angular Client Side Pagination with Nodejs + MySQL

Tutorial: ” Angular Client Side Pagination with Nodejs + MySQL – Server Side Pagination in Node.js Angular MySQL database + Express + Sequelize CRUD ”

In the tutorial, I introduce how to build an “Angular 10 Nodejs Pagination RestAPIs Example with MySQL database (Server Side Pagination with filtering and sorting)” project using Express framework and Sequelize crud queries to interact with database’s records.

– Nodejs Express project (server side pagination) produces pagination RestAPIs with MySQL database records using Sequelize CRUD queries.
– Angular 10 project (client side pagination) will consume the Node.js pagination RestAPIs then show up on component’s views.

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Crud Operation in React.js and MySQL

Tutorial: “Crud Operation in React.js and MySQL – React Node.js MySQL CRUD Example – Step By Step React, Nodejs and Mysql simple full-stack Application”

In the tutorial, I introduce how to build an “Crud Operation in React.js and MySQL” project with Nodejs RestAPI and the help of Ajax to POST/GET/PUT/DELETE requests with step by step coding examples:

– Nodejs project produces CRUD RestAPIs with MySQL database using the supporting of Sequelize ORM.
– React.js project will consume the Nodejs CRUD RestAPIs by Ajax then show up on Reactjs component’s views.

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[Continue reading…] “Crud Operation in React.js and MySQL”

React Node Jwt Authentication without Redux – using LocalStorage and Axios

Tutorial: React Node Jwt Authentication (without Redux) – using LocalStorage and Axios (plus interceptor) in React application and Express + Sequelize + MySQL/PostgreSQL in Nodejs backend solution.

JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. And “How to build Reactjs Nodejs Jwt Token Based Authentication Example?” is one of the most common questions for Nodejs development world. So in the tutorial, I introduce how to implement an application “Reactjs JWT Nodejs token Authentication Example” with details step by step and 100% running sourcecode.

– I give you an Epic of the application, a fullstack excutive flow from frontend (Reactjs) to backend (Nodejs/Express) to database (MySQL/PostgreSQL) with overall architecture diagram.
– I give you a layer diagram of Reactjs Jwt Application with LocalStorage and Axios (plus Interceptor)
– I guide you detail-steps how to implement a security Jwt Token Nodejs backend.
– I guide you step by step how to develop a Reactjs Jwt Authentication application.
– Finally, I do an integrative testing from Reactjs Jwt Authentication application to jwt Nodejs Security RestAPIs.

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[Continue reading…] “React Node Jwt Authentication without Redux – using LocalStorage and Axios”

Ways to implement Proxy Pattern in Node.js

Sometimes we may want to access indirectly to an object, via a substitute. That substitute is called Proxy. The Proxy Pattern helps us deal with a proxy object and talk to the actual object. In this tutorial, we’re gonna look at 2 ways to implement Proxy Pattern in Node.js:

  • Using custom Proxy Class
  • Using Proxy API

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How to implement Dependency Injection in Node.js with Example

Dependency Injection is one form of Inversion of Control technique that supports the Dependency Inversion principle (the last one of SOLID Principles – decoupling software modules). In this tutorial, we’re gonna look at way to implement Dependency Injection pattern in Node.js.

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How to implement Builder Pattern in Node.js

When we want to create complicated object which has multiple parts, we can use Builder Pattern that separates the building of these parts. This creational process does not care about how these parts are assembled.

In this tutorial, we’re gonna look at 2 ways to implement Builder Pattern in Node.js:

  • using Builder function
  • using Builder class

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How to implement simple Factory Pattern in Node.js

Instead of using class constructors or new keyword to create an object of a class, we can abstract this process. So, we can determine the type of object at run-time, by the time of generating that class object. The implementation seems like Factory Method, but simpler than Factory Method. This simple Factory is not treated as a standard GoF design pattern, but the approach is common to any place where we want to separate the code that varies a lot from the code that does not vary.

In this tutorial, grokonez shows you how to do it in NodeJs.

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How to implement Singleton in Node.js

Singleton is object that can have only a single, unique instance, with a single point of access. Node.js module system provides simple way to implement Singleton using module.exports. Module will be cached when it is accessed using require() statement. So our module is merely a cached instance although it behaves like a Singleton.

In this tutorial, we’re gonna look at ways to implement this kind of Singleton in Node.js:

  • Singleton Object
  • Singleton Class

[Continue reading…] “How to implement Singleton in Node.js”

Excel File/Data – Nodejs Express RestAPI – Download/Extract Excel(.xlsx) Data/File from MySQL

In the tutorial, Grokonez shows how to download & extract Excel(.xlsx) File/Data from MySQL with Nodejs Express and exceljs lib.

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Node.js Extract MySQL Data to Excel(.xlsx) File – using exceljs

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CSV File/Data – Nodejs Express RestAPI – Download/Extract CSV Data/File from MySQL

In the tutorial, Grokonez shows how to download & extract CSV File/Data from MySQL with Nodejs Express and json2csv lib.

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Node.js Extract MySQL Data to CSV File – using Json2Csv

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Nodejs Express RestAPI – Upload/Import Excel file/data to MongoDB – using Convert-Excel-to-Json + Multer

In the tutorial, Grokonez shows how to upload & import Excel File/Data to MongoDB using convert-excel-to-json and multer libs.

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Node.js Import Excel File to MongoDB – using Convert-Excel-To-Json lib

[Continue reading…] “Nodejs Express RestAPI – Upload/Import Excel file/data to MongoDB – using Convert-Excel-to-Json + Multer”