Web3j+Maven Development of Taifang Application

In this tutorial, we will learn how to create a Maven-managed Java Ethernet project in Eclipse, connect Ethernet nodes using the web3j library, make JSON-RPC API calls, and display the results. Learn in the language you are familiar with and develop in Taifang DApp: Java | Php | Python | .Net / C# | Golang | Node.JS | Flutter / Dart web3j is ...

Posted by sonnieboy on Sat, 20 Jun 2020 03:54:08 +0200

JDK14 performance management tool: introduction to jstack

brief introduction In the previous article, we introduced the use of jstat tool in JDK14. In this article, we will further explore the use of jstack tool. jstack tool is mainly used to print java stack information, mainly java class name, method name, bytecode index, row number and other information. More highlights: Blockchain from getting st ...

Posted by unidox on Sat, 30 May 2020 03:56:47 +0200

Tron blockchain PHP docking development package [support USDT-TRC20]

The TronTool development package is suitable for rapidly increasing the support ability of Tron/USDT-TRC20 digital assets for PHP applications, that is, it supports the application scenarios using its own Tron blockchain nodes, and also supports the lightweight deployment scenarios based on the official public API services of Tron. Official dow ...

Posted by Calcartman on Thu, 09 Apr 2020 17:42:20 +0200

solidity test case practice

Truffle development framework provides two methods for testing Ethereum smart contract: solid testing at blockchain level and JavaScript testing at DApp level. In this tutorial, we will introduce the purpose, difference and application scenario of these two testing methods of Ethereum smart contract, and learn how to use the solid test case and ...

Posted by Demonic on Thu, 26 Mar 2020 04:11:33 +0100

Actual Ethereum smart contract test [Truffle]

Truffle development framework provides two methods for testing Ethereum smart contract: solid testing at blockchain level and JavaScript testing at DApp level. In this tutorial, we will introduce the purpose, difference and application scenario of these two testing methods of Ethereum smart contract, and learn how to use the solid test case and ...

Posted by scheols on Thu, 26 Mar 2020 03:33:25 +0100

Super ledger fabric Transient Data and Private Data use cases

There are two related concepts in Hyperledger Fabric: Private Data and Transient Data. This paper provides four example programs, which correspond to the four combinations of Private Data and Transient Data. By observing the transactions of account books and the world state database, we can understand why Transient Data should be used as input ...

Posted by netxfly on Mon, 16 Mar 2020 16:01:14 +0100

Hans 123 breakthrough strategy in days

Preface HANS123 strategy was first used in the foreign exchange market. Its trading mode is relatively simple and belongs to the trend breakthrough system. This trading mode can enter the market at the first time when the trend is formed, so it is favored by many traders. So far, HANS123 has expanded many versions. Today, we will understand HA ...

Posted by Stille on Wed, 19 Feb 2020 11:06:08 +0100

Super Ledger Fabric Actual REST API Service [with Source Code]

Hyperledger Fabric provides software development kits/SDKs to help developers access the fabrics network and chain codes deployed on the network, but Hyperledger Fabric does not officially provide an easy-to-use REST API access interface. In this tutorial, we will learn how to use Hyperledger Fabric's SDK to develop a REST API server. 1. Overvi ...

Posted by NoSalt on Tue, 07 Jan 2020 05:39:22 +0100

Simple blockchain demo implemented by golang

The principle will not be introduced. You can see another one of mine Deeply understand the operation principle of blockchain through an App Demo demonstration The code is only the simplest. It simply implements the definition of a block and the connection between blocks. There is no p2p, incentive or consensus. Important da ...

Posted by Blekk on Tue, 24 Dec 2019 20:10:09 +0100

Blockchain tutorial Fabric1.0 source code analysis configtx × genesis

The blockchain tutorial Fabric1.0 source code analysis configtx ා genesis, in the second half of 2018, the blockchain industry is gradually fading away from the impetuosity and returning to rationality at the beginning of development. On the surface, the demand and value of relevant talents seem to be falling. But in fact, it is the gradual dec ...

Posted by richei on Fri, 13 Dec 2019 21:41:45 +0100