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
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
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.
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
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
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
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
"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
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.
Similarly, the mechanism of automatical ...
Posted by skiingguru1611 on Mon, 24 Feb 2020 02:31:25 -0800
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
pragma solidity ^0.4.24;
//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