founder of hyperledger fabric

the code The preferred need is to determine that the go environment is installed and properly configured. For the sake of simplicity, we use the following command: Mkdir-p $GOPATH/src/asset cd $GOPATH/src/asset Next, we create the source file Touch Asset.go 2.2 Introduction Package Each Chaincode implements the Chaincode interface Package main Import ( "FMT" "Github.com/hyperledger/fabric/cor

first of all thanks to the dark blue habitat, this tutorial is based on his tutorial [http://www.cnblogs.com/studyzy/p/7437157.html] collation, block chain technology developed quickly, in the great God's tutorial a little to add. In addition, there are also in the learning block chain students can contact me, we learn from each other. In the first contact with Hyperledger, very confused, do not know where to start. The tutor suggested that I not on

business data by directly changing the COUCHDB.Let's take the official marble as an example and see what happens when we change couchdb.The following are the steps:1.install,instantiate and initializing data:Peer ChaincodeInstall-N marbles02-v1.0-P github.com/hyperledger/fabric/examples/chaincode/go/Marbles02peer Chaincode Instantiate-O orderer.example.com:7050--tls $CORE _peer_tls_enabled--cafile/opt/gopa

-compose View Dockercompose Version Information $ docker-compose --version Output:docker-compose version 1.8.0, build unknown Golang Fabric1.1.0 Version Requirements go1.9+ Fabric1.0.0 Version Requirements go1.7+ Upload go1.10.1.linux-amd64.tar.gz Unzip the file $ tar -zxvf go1.10.1.linux-amd64.tar.gz Edit environment variable File Add the following content: export GOPATH=$HOME/gocodeexport GOROOT=$HOME/goexport PATH=$GOROOT/bin:$PATH $ source .bashrc$ go version Output:go version go1.10.1 linu

I. Concepts Hyperledger is a umbrella project of open source Blockchains and related tools, started in December 2015 by the Linux Foundation, to support the collaborative development of blockchain-based ledgers. Hyperledgerfabric is a subproject based in Openblockchain denoted by IBM. Hyperledger Fabric is a platform for distributed ledger solutions, underpinned

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

0x00 In fabric, peer is an important binary program, its function is mainly to provide peer related operations, regarding peer concept, can refer to official Document 1 and Official Document 2, peer this CLI tool, as a client, can be launched to the Blockchain Network ( channel ) peerrelated from the operation, this command contains a lot of sub-commands, this article will not be introduced, this is not the purpose of this article, this article is mai

If the currency block chain technology represented by the Bitcoin is 1.0, and the contract block chain technology represented by the Ether Square is 2.0, then the Hyperledger project which realizes the complete permission control and the security guarantee will undoubtedly represent the arrival of the block Chain Technology 3.0 ERA. The Hyperledger project currently consists of

There is a entire library of Blockchain APIs which you can select according to the needs that suffice your application. Some Libraries is open-sourced and Some are private. For examples, IBM ' s Hyperledger Fabric Project, Ethereum, Openchain, Multichain is few of the open sourced models which a Re popular in the industry today.This tutorial aims to help you get started and setup your development environmen

. IbmBluemix garages for blockchainHelp businesses accelerate the design and development of blockchain applications, for more Info-https://www.ibm.com/block Chain/garage.html. Let ' s get started. As you can see from the below snapshot, I am using Ubuntu 16.04.1 LTS machine with 8 core processor and GB RAM. Using Putty I am accessing it as superuser. Make sure network was configured properly and Internet is accessible. You can check/etc/hosts and/etc/resolv.conf. Try to ping any Web address t

How to contribute code to the Hyperledger Fabric project Installation Environment It is recommended to develop the code in the Ubuntu 14.04+ environment and install the following tools. git: Used to get the code; Golang 1.6+: Environment variables such as configuration $GOPATH after successful installation. Get Code First register the Linux Foundation ID and log in to https://gerrit.hyperledger.org/to add

corresponding directory, and then enter the directory, git download source code # download Install git $ apt-get install git # Create source directory $ mkdir-p/opt/gopath/src/github.com/hyperledger $ cd/opt/ Gopath/src/github.com/hyperledger $ git clone https://github.com/hyperledger/fabric.git $ cd Fabric # Use Git

Hyperledger Fabric Trading Flow Hyperledger Fabric v1.1 provides several special chain codes to perform certain special tasks, which are known as system chain codes (Systems Chaincode). The purpose of this paper is to summarize the implementation, function and usage of these chain codes. Similar to the user chain code,

written yet) and why it failed. In other words, you can use JUnit testing as a guide to implement code correctly.Now, if it's hard to understand, don't worry; I've provided a solution in com.makotojava.learn.blockchain.chaincode.solution in case you're stuck (or want to help with the implementation by reference).Writing the Java chain codeLet's start by introducing some of the background you need to know to implement the chain code approach in Chaincodelog. The Java chain code communicates with

problems of the project, specific instructions can refer to/usr/lib/python2.7/site.py file: Docker-compose-f Docker-compose-cli.yaml Down Execute command Docker run-it CLI BashAbnormal: [ROOT@IZ2ZEIVRKCKULQ2DTIDZTMZ e2e_cli]# Docker exec-it CLI bash Error response from Daemon:container 1f9b6f7d709f26 3F4A67A67AD91B419B13844EFAAA4CAEB6DD571BFA829822C7 is not running Workaround: CLI: container_name:cli ... Working_dir:/opt/gopath/src/github.com/

What has been harvested and what has been done is an important issue.This article is only to learn to exchange information, personal summary. A brief analysis of Hyperledger fabric PBFT algorithm Architecture Fabric Consensus algorithm code is all in the Consensus folder, consensus folder is mainly divided into Controller,executor,helper,noops,pbft,util file modu

First, start the process of developing code on the Java chain 1. Make sure you have grandle tools.2. Download the binary distribution package from the http://gradle.org/gradle-download/3. Unpack, move to the location you want, add the Grandle Bin directory to the system path4. Ensure that the GRANDLE-V command can be executed, the version shown is 2.12 or higher5. Ensure Grandle daemon can be quickly created6. Make sure you've turned jdk8.0 and also make sure that the Java directory is in your p

# Deploy and instantiate your own chaincode to fabric: # # First write the chaincode copy to the CLI. ``` Command reference: Docker CP [OPTIONS] src_path|-Container:dest_path Docker Cp/chaincode/bdata/3a113b6c0ecf:/opt/gopath/src/github.com/hyperledger/fabric/examples/chaincode/go ``` # # Installation Bdatas = = = ``` Peer Chaincode install-n bdata-v1.0-p git

First, preparatory work 1. Through the tutorial-"(i) Hyperledger fabric in the CentOS7.2 64-bit system development environment build" to determine has been downloaded Hyperledger Fabric official sample codes. ii. generation of networks 1. Generate Network Identification CD Results after successful execution: 2. St

the Go programming language installed and your system is configured correctly. Now you need to create a subdirectory under your $gopath/src/to store your link code program. To make things simple, we provide a simple instruction: Mkdir-p $GOPATH/src/sacc cd $GOPATH/SRC/SACC We create a source file: Touch Sacc.go Housekeeping (coded) First let's prepare the code. Like every chain code, it implements the Init and invoke functions of the chain code. So let's use the GO Import statement to impo