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.
In the tutorial, we will show how to build a NodeJS application to save files/images to MongoDB database using Mongoose.
– Crud RestAPIs with NodeJS/Express, MongoDB using Mongoose
[Continue reading…] “NodeJS – use Mongoose to save Files/Images to MongoDB”
In the tutorial, we guide how to send email from Node.js applications by Nodemailer module.
[Continue reading…] “NodeJS – Send email by Nodemailer”