hyperledger sawtooth

This article address: original link Share your experience on Hyperledger smart contracts. Source Address: Chaincode_example2 In the previous setfabriconubuntu, there was no need for virtualbox and vagrant to deploy the fabric directly, and its usefulness now manifests itself ~ The operation of the smart contract Chaincode does not require multiple nodes to be started locally and can be tested directly. Then we can test the existing CHAINCODE_EXAMPLE0

Installing Curl (Install curl) If you do not have curl installed, download and install it. Note: If it is windows, please look at the following Windows extras; Docker and Docker Compose Below you talk about installing Docker and Docker compose. MAXOSX, *nix, or Windows 10 requires the installation of Docker V1.12 or a later version. Older versions of Windows need to be installed first: Docker Toolbox before installing Docker V1.12 or later. You can view your Docker version by entering the fol

) handler, err: = P.handlerfact Ory (P, stream, Initiatedstream, nil) if err! = Nil { return FMT. Errorf ("Error creating handler during Handlechat Initiation:%s", err) } defer handler. Stop () for { in, err: = stream. RECV () If err = = Io. EOF { peerlogger.debug ("Received eof, ending Chat") return nil } if err! = Nil { e: = fmt. Errorf ("Error during Chat, stopping handler:%s", err) Peerlogger.error (E.error ()) return e } err = handler. Handlemessage (in)

("Creating consensus plugin%s", plugin) Return PBFT. Getplugin (Stack) } Logger. Info ("Creating default consensus plugin (noops)") Return Noops. Getnoops (Stack) } The controller directory is a function of the consensus plug-in selection moduleThe---->hyperledger provides two algorithms pbft and Noops----> Default single node Usage noops is equivalent to no consensus algorithm Func newconsenter (Stack consensus. Stack) consensus. Consenter

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

First, the Fabric SDK The latest official document for Hyperledger fabric (V1.1.0-preview), the description of the Fabric SDK is still poor, just a few simple descriptions, plus two GitHub links: Fabric-sdk-node Fabric-sdk-java In fact, through the Hyperledger project on GitHub we can see that Hyperledger fabric also offers another three kinds of sdk:fabric-sdk-

=/opt/gopath Then Soorce source/etc/profile. Attention If the mirror is slow, set up with Daocloud to download curl-ssl https://get.daocloud.io/daotools/set_mirror.sh | sh-s/HTTP/ 6b8ef0e5.m.daocloud.io Service Docker restart if the download process encounters protoc-gen-go missing, download and copy to the corresponding directory go get-u Github.com/golang/protobuf/protoc-gen-go 4 Fabric Mirroring Install the fabric image (there are 2 methods, the 1th is to download the source code

Brief introduction Current host information: Ubuntu16.04x86_64 root@JDu4e00u53f7:~# uname -aLinux JDu4e00u53f7 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux The environments we need to prepare are: CURL Docker Compose Docker Golang Nodejs Installation Installing Curl sudo apt-get install curl //Ubuntu系统一般默认会安装 Installing Docker Hypreledger Fabric1.2 requires Docker to have a minimum version ofDocker 17.06.2

current fabric there is limited development resources, so in 1.0 will not do, may be achieved in the future. COUCHDB Installation Now let's talk about this couchdb. COUCHDB is a database of key values for a full local restful API, which means we don't need any clients, we just need to operate the database via HTTP requests. Leveldb is a peer local database, then certainly and peer one-to-one relationship, then COUCHDB is a network database, should and peer what kind of relationship. In a produc

Hyperledger source code Analysis of Fabric The sorting service plays a very central role in the Super Ledger Fabric network. All transactions need to be sorted globally before they are sent to committer for validation acceptance. In the current architecture, the function of the sorting service is extracted, as a separate Fabric-orderer module to implement, the code is mainly in the Fabric/orderer directory. The following Kafka as a consensus plug-in a

Hyperledger source code Analysis of Fabric The Orderer node startup is implemented by the main () method under the Orderer package and further calls to the main () method in the Orderer/common/server package. The core code is shown below. Main is the entry point of Orderer Processfunc main () { fullcmd: = Kingpin. Mustparse (app. Parse (OS. Args[1:]) //"version" command if Fullcmd = = version. Fullcommand () { fmt. Println (metada

Hyperledger Installation and testing (MAC PRO) Environment preparation Dccker Golang node. js Python 2.7 (MacOS comes with) Fabric Download and Installation Reference Links:Hyperledger Fabric v1.1.0 MacOS Deploying a developer environment and creating the first Fabric network Test Note that the actual installation is using the 1.2 version, the corresponding test should also refer to:Building Your First Network Some of the issues that

Prerequisite conditions CentOS 7.4 64-bit Install Docker and configure the Aliyun accelerator Install Docker Compose Install Golang Because of the forbidden relationship, there is no way to direct access to the golang.org site, but the domestic download site a lot of their own Baidu can be. My installation path is/usr/local/src/go Edit/etc/profile file Add related environment variables as follows Install Git Yum Install git Download Fabric Source Code Mkdir-p ~/go/src/github.com/

> Before learning bitcoin and Ethereum, must first learn its block structure, at that time in the bank to do hyperledger related projects, I was very neglected in the structure, only care about the smart contract, incredibly can also initially master and start Project-related development. This shows that the super-Ledger block attribute is actually weaker, and it is important that the properties of the smart contract. Performance is also good. In this

Super Ledger Hyperledger Cello installation deployment and simple use Cello GitHub Hyperledger Cello helps manage blockchain networks effectively. use to quickly build a blockchain-as-a-service (BaaS) platform. Immediately provide customizable blockchain, such as Hyperledger Fabric Network v1.0 can be used on bare metal, virtual cloud (virtual machine, virtual c

The entities involved in Hyperledger Fabric 1.0 include the following: FABRIC-CA: Mainly responsible for the maintenance of the certificate of the entity in the network; Peer: mainly responsible for the implementation of intelligent contracts, record books; Order: mainly responsible for the accounting content of the consensus. 1.0 architecture can be based on the actual needs of the network through the Certificate of Security Domain Division manag

Fabric-sdk-java build and compile (this article is based on 1.0.1 version) 1, install jdk1.8 and above version 2, download Fabric-sdk-java GitHub address: Https://github.com/hyperledger/fabric-sdk-java 3. Import into Eclipse tools 4, switch to the project directory under the Command Window mode of execution: MVN compile-dskiptests, Refresh the project after the compilation succeeds. Proto files in the project are generated into the Target/genera

Copyright Notice: Blog Article copyright owners all, without authorization, prohibit reprint, reprint please specify the source installation Environment installation JDK Download URL: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html Download jdk-8u151-macosx-x64.dmg install to PC install maven Download URL: https://maven.apache.org/download.cgi Extract to/users/fujinliang/documents/environment Open terminal , modify. BASHRC VI ~/.BASHRC Add the following code

The previous analysis program looked at the details of the analysis, so without the concept of framework, took two days to analyze the Hyperledger fabric architecture design, analysis of the program does not reference any information, such as error welcome correction, common progress. The author has the following questions before the detailed analysis procedure: 1) How the CLI (command line) client sends a command to a peer node 2) How the peer node

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 a personal SSH pub key. Look at the list of