hyperledger fabric developer tutorial

This is the Chaincode for developers chapter in the official document of Hyperledger Fabric V1.0.The first translation, the wrong place also asked netizens to point out that we learn together progress.Original address (http://hyperledger-fabric.readthedocs.io/en/latest/chaincode4ade.html) chain code is what Chaincode is a program written with go, which eventually

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

variable: Enter the. BASHRC Configuration environment variable: $ sudo vim ~/. BASHRC or: $ sudo vim/etc/profile Add the following code to the last side: Export gopath=/usr/local/goexport path= $GOPATH/bin: $PATH 　　 Save, exit. To make an environment variable effective: $ source ~/. BASHRC or: $ source/etc/profile 　　 　　After viewing the version number no problem, the configuration is successful.1.3.2 node. js Download node. js $ CURL-SL https:// Install node. js sudo Install -y Nodejs 　　 Check

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

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

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$ sud

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

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

Transferred from: https://www.ibm.com/developerworks/community/blogs/8d277a63-4204-4fd3-8cb8-b7cb222cd522/entry/Steps_to_ Setup_blockchain_hyperledger_fabric_0_6_development_environment_on_ubuntu?lang=zh We heard about Blockchain technology and understand their value to business. Here we would want to share our learnings with you all, acquired during setting up a single node Hyperledger blockchain de V Environment during a client engagement. This ent

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

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

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

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

complete, unzip to the/usr/local directory:sudo tar -c/usr/local-xzf go1.10.1.linux-amd64.tar.gz　　To configure the GO locale variable:Enter the. BASHRC Configuration environment variable:$ sudo vim ~/. BASHRC or: $ sudo vim/etc/profileAdd the following code to the last side:Export gopath=/usr/local/goexport path= $GOPATH/bin: $PATH　　Save, exit.To make an environment variable effective:$ source ~/. BASHRC or: $ source/etc/profile　　　　After viewing the version number no problem, the configuration

Before you begin, you need to export a custom variable to facilitate subsequent operations:Export fabric=/opt/gopath/src/github.com/hyperledger/fabric/devenv1. Perform the following on the real machine to enter the virtual machineCD $FABRICvagrant up // start a virtual machine SSH // Enter virtual machine2. Perform the following actions in the virtual machine, st