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    @sooraj-citta ./startFabric.sh What exactly does this file do?
    Sooraj S
    @mxz-scott I am new to hyperledger but from what i understood, this script file pull and start the docker containers for basic hyperledger fabric , couchdb etc. So sometimes this error comes up. I have no clue. I always to the ./teardownFabric.sh to kill & remove the existing docker before attempting to start a new one..
    Hi ,How can we create publickey for user when he registered and with that publickey he can create his won privatekey ,is it possible to do so in hyperledger. And these keys should not stored in ledger.
    你可以使用 cryptogen 工具生成密钥和相关证书文件,或者调用bccsp的加密接口生成公私钥对,这些密钥会存储在你配置的keystore目录下
    hi everyone can anyone please tell me how to do hyperledger fabric setup for multiple channel and multiple chaincode
    @harinishree 可以说中文吗
    Mayank Sahai
    I want to use hyperledger fabric ...do you know which version is the stable on?
    Mayank Sahai
    i have few basic questions is ther anyone who could help me out a little?

    Development only script for Hyperledger Fabric control
    Running 'createPeerAdminCard.sh'
    FABRIC_VERSION is set to 'hlfv11'
    FABRIC_START_TIMEOUT is unset, assuming 15 (seconds)

    Using composer-cli at v0.19.5

    Successfully created business network card file to
    Output file: /tmp/PeerAdmin@hlfv1.card

    Command succeeded

    Error: No connection type provided, probably because the connection profile has no 'x-type' property defined.
    Command failed

    how to resolve it
    Error: No connection type provided, probably because the connection profile has no 'x-type' property defined.
    Command failed

    bc@bc-HP-Pro-3090-Microtower-PC:~/product-network$ composer network start --networkName product-network --networkVersion 0.0.1 --networkAdmin admin --networkAdminEnrollSecret adminpw --card PeerAdmin@hlfv1 --file networkadmin.card
    Starting business network product-network at version 0.0.1

    Processing these Network Admins:
    userName: admin

    ✖ Starting business network definition. This may take a minute...
    Error: Error trying to start business network. Error: Failed to connect to any peer event hubs. It is required that at least 1 event hub has been connected to receive the commit event
    Command failed

    any one give the solution
    Hi to all ,any one share the supply chain project on hyperledger fabric
    Please any one share supply chain project on BlockChain
    Diana Hepburn
    我在调用cryptogen生成证书的时候报错了,使用的是e2e_cli下的配置文件,cryptogen generate --config=./crypto-config.yaml,报了以下错误:org1.example.com
    panic: runtime error: invalid memory address or nil pointer dereference
    [signal SIGSEGV: segmentation violation code=0x1 addr=0x8 pc=0x123b5fc]

    goroutine 1 [running]:
    github.com/hyperledger/fabric/bccsp/gm.CreateCertificateToMem(0xc00014c480, 0xc00014c480, 0x13cd660, 0xc00000e0b0, 0x0, 0x0, 0x0, 0x1, 0xc0000164a8)
    /opt/golang/src/github.com/hyperledger/fabric/bccsp/gm/certhelper.go:65 +0x8c
    github.com/hyperledger/fabric/common/tools/cryptogen/ca.genCertificateGMSM2(0xc000018180, 0x33, 0xc000014140, 0x13, 0xc00014c480, 0xc00014c480, 0xc00000cae0, 0x13cd660, 0xc00000e0b0, 0x0, ...)
    Hi everyone, Can anyone suggest a good provider of Blockchain as a service ?
    Ricardo Murillo
    I think if you can blindly trust other parties to have your infrastructure and centralize it for the whole network, then a blockchain is not what you need.
    See this thinking here
    Hi Guys iam new to Blockchain . i just joined this channel
    Lets say i have a Blockchain Network , And i need to join . Suppose my Ecomm portal a module needs to communicate with blockchain ldger as memebr how can be this possible Steps for the same ?
    Hi All, Could you please someone help me to set up the fabric-ca-server with postgresql. I am getting the below error.
    [ERROR] Error occurred initializing database: Failed to connect to Postgres database. Postgres requires connecting to a specific database, the following databases were tried: [testdb postgres template1]. Please create one of these database before continuing
    But the "psql" is up and running
    Auuu Nya
    Auuu Nya
    有人做过fabric 浏览器方面的东西吗?我现在想做个展示自己网络交易信息的页面,用fabric浏览器的话要改样式,自己写页面 请求接口的话,像有的信息又请求不到。help me。
    are there versions of hyperledger which are proprietary?
    Saikrishna Reddy
    Can anyone explain exactly what is the difference of words below in Fabric context?
    • Organization
    • Party
    • Member
    • Participant
    • Entity
    • Identity
    quiet in here
    @SaikrishnaReddy1919 : These are very beautifully explained in Hyperlydger fabric Documentation i believe
    Hi everyone, I have an issue with my HLF network implemented using docker. the docker logs are filling up all the filesystems. So each day I need to stop , remove the log and restart the dockers. It would be good to know if anyone has experienced with this issue? any expert in docker? I am assuming the log has some kind of dsebug or verbose settings … not sure
    Mayank Sahai
    When you are starting a nee project do you all also take a copy of byfn and edit the network according to your needs? Or is there some other way to start a project from scratch? Sorry if you find the question silly, actually I am a beginner 😅
    Hello~ Dose anyone know when to validate the endorsement of the proposal?
    Pab Akihabara
    when i peer lifecycle chaincode queryinstalled i get a package_id. i then export it to package_id and i approveformyorg this package with the package id. how can i change it if i made a mistake in the package_id ?
    is there anyone who can help me with a problem with HLF? In summary my HLF when has lot of transaction/block.
    Hi there, I'm a beginner in fabric, I need to add an external oracles that can communicate with smart contract...there is some good article or docs to start? thanks
    hi everyone
    while instantiate-chaincode they are using endrosement policy like this 'endorsement-policy': {
    identities: [
    { role: { name: 'member', mspId: 'Org1MSP' }},
    { role: { name: 'member', mspId: 'Org2MSP' }}
    policy: {
    '2-of':[{ 'signed-by': 0 }, { 'signed-by': 1 }]
    can u please briefly explain what is the purpose of using this
    Thanks in Advance
    Cannot run peer because error when setting up MSP from directory /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp: getCertFromPem error: failed to parse x509 cert: x509: unsupported elliptic curve
    !!!!!!!!!!!!!!! Channel creation failed !!!!!!!!!!!!!!!!
    @tjfoc 你好 目前我按照你们发布的版本编译 和网上所有版本 ,遇到的错误类似,基本不可用。步骤:编译重新生成证书。首先遇到第一个错误就是Invalid DER for channel ,跟代码发现orderer/common/cluster/comm.go 中调用x.509Parse 错误,应该是调用同济的sm2.修改后能正常启动,创建通道时遇到panic: interface conversion: interface {} is sm2.PublicKey, not ecdsa.PublicKey,代码在msp/cert.go第92行,类型断言错误,代码没有判断保护直接panic,...
    这个代码目前可以直接用么 unsupported elliptic curve 我之前也遇到 就是那个Invalid DER 改了一个文件后错误消除 然后创建通道遇到断言错误 直接panic /。。
    Manu Rastogi

    Is there any way to delegate cryptographic operations performed by Hyperledger Fabric nodes(client nodes, orderer nodes, and peers) to Hashicorp Vault? Allowing peers and orderer nodes to sign and endorse transactions without exposing their private keys.

    Hyperledger Fabric officially supports HSM but I am unable to find any relevant document to do the same by replacing HSM with Hashicorp Vault.