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Blockchain DIY

Deploying Hyperledger Fabric for a single organization

In the development environment, a simple development only Hyperledger Fabric single organization, single peer network is created for you (fabric-dev-servers), along with all of the...

Using Composer Query language and REST APIs

In this tutorial, we will build on the developer tutorial, extending it to demonstrate queries. The native query language can filter results returned using criteria...

Tutorial for creating a Hyperledger Composer solution

This tutorial will walk you through building a Hyperledger Composer blockchain solution from scratch. In the space of a few hours you will be...

Hyperledger Composer Playground Tutorial

In this step by step tutorial we'll walk through setting up a business network, defining our assets, participants and transactions, and testing our network...

Developing TLS in Hyperledger Fabric

Introduction Secure communication between components in Hyperledger Fabric is done in TLS. Examples are client application requesting endorsement from selected peers, a Fabric CA Client...

Building a Loading Indicator with SwiftUI

Have you ever used the magic move animation in Keynote? With magic move, you can easily create slick animation between slides. Keynote automatically analyzes...

Introductory Guide on XCFramework and Swift Package

In WWDC 2019, Apple announced a brand new feature for Xcode 11; the capability to create a new kind of binary frameworks with a special format...

Using API Server for Hyperledger Fabric Network

Introduction My previous work on implementation of API Server was done on Fabric v1.4 one year ago. Certain changes have been seen since v2.0. Here...

Exploring Proposal-Acceptance Workflow in DAML

Introduction In my previous work several important concepts like template, contract and transaction about DAML were introduced, with a very simple IOU demonstrating the relationship between them....

SwiftUI TabView Introduction and Tab Bar Customization

  The tab bar interface appears in some of the most popular mobile apps such as Facebook, Instagram, and Twitter. A tab bar appears at...

Using Python to create a Crypto Currency Blockchain

Cryptocurrencies and their underlying blockchain technology have taken the world by surprise —from their humble beginnings a few years ago to current everyday conversation...

Creating a blockchain database

Every day more and more blockchain-based applications appear. And this is not surprising. Due to one of the key features of this technology, decentralization....
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