Fabrc 2.0 External Chain Code Development Tutorial

A new feature introduced in Hyperledger Fabric 2.0 is the ability to use external chain code launchers, which are ideal for using kubenetes or dowcker swarm to manage node and chain code containers in a unified manner.In this article, we will learn how to deploy chain codes in a K8s cluster using an external chain code launcher. 1. Prerequisite ...

Posted by Whetto on Thu, 12 Mar 2020 19:14:19 -0700

10. Crowdfunding contract realization

Article directory Introduction to ICO crowdfunding Crowdfunding contract initialization Crowdfunding contract realization Introduction to ICO crowdfunding ICO (initial crypto token offering, first token crowdfunding) is considered to be a new type of investment and financing mode generated by th ...

Posted by smartsley on Tue, 10 Mar 2020 23:18:43 -0700

Hyperledger Fabrica 2.0 MSP & BCCSP

This article is based on fabric v2.0.1 The initialization process of localmsp and bccsp is described with the example of peer node startup. I. BCCSP BCCSP is the abbreviation of Blockchain Cryptographic Service Provider, which is an abstract representation of commonly used block chain cryptography al ...

Posted by smbkgeo1983 on Mon, 09 Mar 2020 21:38:48 -0700

mongoose - the Nodejs framework of object-oriented operation mongodb

introduce Whether mysql or mongodb, the traditional way to interact with database is to write code according to the API they provide. The APIs they provide are often not easy to understand and hard to remember. If you pass wrong parameters and write a wrong symbol, you need to check the document. The ORM (Object Relational Mapping) framework ...

Posted by jollyjumper on Sat, 07 Mar 2020 08:35:50 -0800

The practice and application of thermostat strategy in inventor's quantification platform

Why is it called a thermostat. We name the system according to its ability to adapt to market, shock and trend. The system comes from our observation of the success of a particular system in a particular market area. This system can create dual strategies to make full use of the two models of the market. First, we create a function to help ...

Posted by AaZmaN on Fri, 06 Mar 2020 23:55:44 -0800

Cross currency hedging strategy in blockchain asset quantification transaction

In a hedging strategy, there are various types of hedging. Cross market hedge, cross period hedge and so on. Today, let's talk about cross variety hedge, which is exactly the cross currency hedge strategy in the quantitative transaction of blockchain assets. Generally, the subject matter of hedging transactions is the same, while cross currency ...

Posted by kark_1999 on Wed, 26 Feb 2020 18:55:14 -0800

Using average trend index to assist MACD strategy

Preface "Trend is your friend" is a proverb familiar to every trader. But friends who have done deals may realize that trends always start without warning and end abruptly. So in CTA strategy, how to catch the trend and filter the volatile market is the tireless pursuit of many subjective and quantitative traders. In this course, we ...

Posted by donbueck on Wed, 26 Feb 2020 00:03:40 -0800

Hand in hand to teach you how to transform "commodity futures Plan Commission tool" into a one-day strategy

In the last article, we learned How to write a commodity futures plan entrustment tool , this is a semi manual trading strategy. So how can we implement an automatic plan delegation strategy? In this issue, let's implement and transform this tool into an automatic trading strategy.   Strategic thinking Similarly, the mechanism of automatical ...

Posted by skiingguru1611 on Mon, 24 Feb 2020 02:31:25 -0800

HyperLedgr deployment, initializing the network.

start Check the prerequisites of the platform in order to successfully develop blockchain products. Installation prerequisites, click the link: Precondition. For more details, click: more details. List of prerequisites The latest version of git The latest version of curl Any version of wget Docker and docker composedocker --version re ...

Posted by VagabondKites on Sun, 23 Feb 2020 23:52:41 -0800

Deploy Ethereum smart contract (Token release)

pragma solidity ^0.4.24; contract EIP20Interface{ //Get the balance of the owner address function balanceOf(address _owner) public view returns (uint256 balance); //Transfer: transfer in ﹐ value tokens from one's own account to ﹐ address function transfer(address _to, uint256 _value)public returns (bool success); / ...

Posted by beebum on Sat, 22 Feb 2020 09:22:08 -0800