The Learning definition of Fabric
Fabric provides a missing object model Forcanvas, as as a SVG parser, layer of interactivity, and a whole suite ofot Her indispensable tools. function
The object model is provided on the base of the canvas
Provides the basic types of canvas rendering and state management objects :
Fabric. Circle
Bloggers before the article is to teach you how to quickly build a fabric environment, but a lot of work is hidden in the official script, not easy for everyone to understand the process, so the blogger here will be the process of one step by step decomposition, convenient for everyone.
Before the preparation of the work I need not say, that is, the installation of various software and development environment, after installation, we git clone down the
Preface
Hyperledger fabric, what is hypeledger and what is fabric? Hypeledger literally means the Super ledger, which was launched by the Linux Foundation in December 2015 as an open-source project called "Super Ledger", designed to drive collaboration to create a blockchain-based, enterprise-class distributed ledger underlying technology for building industry applications and platforms that support the bu
Use Fabric to automate your tasks.What is fabric?
Fabric is a Python library that can run tasks in batches on multiple hosts through SSH. You can write a task script and use Fabric locally to run it automatically on a large number of remote servers using SSH. These functions are ideal for automated application deployme
source code compilation-why?The compilation of fabric source code is based on the basic knowledge of some of the modules or modules of the fabric. But why compile the source of the fabric, the gods have already written the fabric of the project framework and compiled it, not to use it?
1. The Docker container that depl
As we all know, Fabric is a Python library. you can execute tasks in batches on multiple hosts through SSH. You can write a task script and use Fabric locally to run it automatically on a large number of remote servers using SSH. These functions are ideal for automated application deployment or system management tasks. This article describes how to use Fabric to
This is a creation in
Article, where the information may have evolved or changed.
Hyperledger Fabric Client SDK for Go
Go get-u github.com/hyperledger/fabric-sdk-go
Document Https://godoc.org/github.com/hyperledger/fabric-sdk-go
compatibility
Fabric v1.0.1 Fabric
: $PATH
Exit Edit and enter the following command to make the changes effective:
Source/etc/profile
Enter the following command to see if the installation was successful:
Go version
If it appears: Go version go1.9.2 LINUX/AMD64 indicates a successful configuration.
As for Gopath, this is the directory where the Go program runs, that is, all the go programs you write are placed in this directory. Based on the above configuration, we create a new Gopath folder in the ~ directory and then create
The environment required to build the fabric under the ubantu environment.Configure Ubantu virtual machine under Mac, tutorial can refer to above.When the Ubantu system is ready, start the environment setup.
Environment construction
Quick Start: http://hyperledger-fabric.readthedocs.io/en/release-1.1/getting_started.html
Premise
Install Git
$ sudo apt update$ sudo apt install git
Installing Curl
$ sudo apt install curl
Install Vim
$ sudo apt install v
time, which may miss this "virtual value" during this process. COUCHDB is run as a standalone database process with peer, so there are additional considerations for setup, management, and operation. We can consider starting with the default embedded Leveldb, which can be transferred to COUCHDB if additional complex rich queries are required. modeling Chaincode Asset data as JSON is a good practice so that we can execute the complex rich queries we need in the future. Using the CouchDB in Ch
1, Environmental structure Description:The system uses the container to run, the construction process is simple, each component division of labor is clear:1.docker-compose:docker container management;2.Go Lang Sdk:go language development, compilation environment;3.git:git Mirror Clone and commit;4.Rest client:rest API test;The main operations of the container are: Membersrv and peer;
2. Deployment Environment Readiness
3. Installation and Deployment3.1 Pulling the mirror from the DockerhubA. Ins
About FabricMySQL fabric is launched by Oracle, which simplifies the management of MySQL clusters and offers two main features:1 high availability with fault detection and failover2 scalability through automatic data fragmentationFabric Prerequisites
MySQL server 5.6.10 or later for fabric MySQL servers (fabric is based on the new features of MySQL 5.6 gtid)
Fabric Source Parsing 12--peer MSP service
MSP is the abbreviation for Membership service Provider , and the personal custom is a member relationship service provider . The role is similar to having a large number of participants in a running fabric system network, in order to manage these participants, identify who is qualified, who is ineligible, maintain the rights of one participant, and maintain the r
Images required to recompile the Docker development environment after Hyperledger/fabric new user
Author: Chen Zhao Lin email:chenlin2@ms9.hinet.net
Hyperledger does not belong to the public Chain, such as Bitcoin, he is a private chain that requires user review and authentication to join a blockchain transaction, which uses a CA (Certificate authority) for public key, private key, The issuance of digital signature, but also to manage the user's acc
Let's first look at an example. We know that under *nix, the uname command is to view the distribution of the system.
You can write a fabric script like this:
From Fabric.api import Run
def host_type ():
run (' uname-s ')
By saving the above script as fabfile.py, you can fab execute the Host_type script on multiple hosts by command:
$ fab-h localhost,linuxbox host_type
[localhost] run:uname-s
[localhost] out:darwin
[Linuxbox] Ru
Key Benefits of Information FabricKey Benefits of Information fabricInformation fabric offers several key benefits, including:Information fabric can bring a lot of benefits, including:Enabling real-time data sharing and quality. Support for high quality real-time data sharing. Information fabric enables much richer data sharing and better data quality. Informatio
Tags: iat bulk query Bulk function name UNC app get handle funcHyperledger Fabric enables COUCHDB as a state database I. Overview
Data Request Flow
The super ledger uses an endorsement/consensus model, where simulation execution and block validation are performed separately in the nodes of different roles. Simulation execution is concurrent, which can improve scalability and throughput:
Endorsement node: Analog execution chai
Super Record Book: Quickly build a Hyperledger Fabric 1.0 environment
Here we start our environmental set-up work: 1. Use VirtualBox and install Ubuntu in it
This step is actually nothing to say, download the latest version of VirtualBox, download ubuntu server, I use the Ubuntu16.04.2 X64 server. After installing Ubuntu, you need to ensure that apt source is domestic, otherwise it will be slow and slow if it is abroad. The specific approach is
Characteristics of Information FabricCharacteristics of information FabricThere are nine core requirements that characterize the information fabric, including the ability to:Information fabric has 9 core features, with the following capabilities:Virtualize data across disparate data sources. Virtualization of data across heterogeneous data sources. Regardless of the physical location of data, the applicatio
Bloggers before the article is to teach you how to quickly build a fabric environment, but a lot of work has been hidden in the official script, it is not convenient for us to understand the process in depth, so bloggers here will be the process of one step by step decomposition, to facilitate everyone.
In front of the preparation I don't have to say, that is, the installation of various software and development environment, after installation, we git
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