Fablet

Fablet, a browser-based dashboard and tools set for Hyperledger Fabric blockchain platform. It can help blockchain participants to connect to Fabric network, and perform operations of chaincode, channel, ledger...

Overview

Peers list

Chaincodes list

Invoke chaincode

Query ledger

Playground

An example Fablet service was set up with a Fabric network, you can try it at:
https://bctest01.fablet.pub:8081/
Due to the self-sign certificate, please accept the security exception in your browser.

Initial connection

If it is the first time you access the service, you need to create a connection profile and identity, we provide some examples corresponding to an example Fabric network (Fabric 1.4.3 first-network). Please download these accordinginly:

• Connection Profile
  https://bctest01.fablet.pub:8081/test/conn_profile_simple.yaml

• Identity certificate:
  https://bctest01.fablet.pub:8081/test/[email protected]

• Identity private key:
  https://bctest01.fablet.pub:8081/test/[email protected]

• MSP ID
  The corresponding MSP ID is Org1MSP

Chaincode

Installation

An exmaple chaincode vsinst has already been instantiated.
And you can also install another chaincode instance with below packages. You can download the example package file and look into it for details.

• Tar file
  https://bctest01.fablet.pub:8081/test/vs_src.tar

• Tar.gz file (same with above but was compressed)
  https://bctest01.fablet.pub:8081/test/vs_src.tar.gz

• Chaincode path
  The corresponding chaincode path is fablet/vs.

• Chaincode name and version
  Please input name and version. Example is vehiclesharing and 1.0.

• Another example Node chaincode package for Fablet. (Example02 from first-network) https://bctest01.fablet.pub:8081/test/example02node_src.tar

Instantiation

This is a lower machine, it might take several minutes...

• Policy

  OR ('Org1MSP.peer','Org2MSP.peer')
  

• Constructor parameters
  For vehiclesharing example chaincode, please leave it as blank.

Execution

• Function name

  createVehicle 
  

• Arguments

  v001,brand001
  

Query

• Function name

  findVehicle 
  

• Arguments

  v001
  

No more document for user now. I think that user should get all points from the UI directly, instead of documentation.

Binaries

Fablet executable binary (based on Ubuntu 18.04) was built and can be downloaded from here: https://github.com/IBM/fablet/releases/download/v0.0.1/fablet_0.0.1.tar.gz

Start

The build output will be found at ./release/<OS_Arch>/fablet.

• Start Fablet as default with http on port 8080:

  ./release/<OS_Arch>/fablet
  

• Start Fablet with https on customized port 8081, and TCP address:

  ./release/<OS_Arch>/fablet -addr localhost -port 8081 -cert <tls_cert> -key <tls_private_key>
  

When Fablet start, you can access it via browser (We tested it on Chrome and Firefox). For connection profile and identity encryption materials, please see section of 'Playground' for examples.

Build

Now, building and development was only validated on Ubuntu 18.04.

Prerequisite

• Go ^1.13.4
  If there is network issues, please try:
  go env -w GOPROXY=https://goproxy.io,direct

• Node.js ^12.13.0

• yarn ^1.19.1
  npm install -g yarn

• Hyperledger Fabric 1.4.3
  Currently, Fablet supports Fabric 1.4.3, we are working to adapt to 2.0.0. Please refer to Fabric installation document for details.

  You can use Fablet to connect to an existing Fabric blockchain network.

Download repository

git clone https://github.com/IBM/fablet.git

Build

• Build all

  ./build.sh
  

• Build service (go) project only

  ./build.sh service
  

• Build web (js/react) project only

  ./build web
  

Start

Please find above section of 'Start' for details.

Development

It is composed of 2 projects: service project and web project. These 2 projects folders can be opened as individual project, by MS Code or other IDE.

Service project

Under folder ./.
It is developed in Go language, it provides web service, and html/js/image host.

• Run in development

  go run ./main
  

• Test
  There are some testing programs in this project, before running those, you have to update connection profiles under folder ./test/connprofiles.
  Basically the profiles are suitable for the fabric-samples/first-network example Fabric network. Please update the tlsCACerts section in the connection profiles with the certificates, an example is fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/tlsca/tlsca.org1.example.com-cert.pem.

  If you want to use your self Fabric blockchain network for testing purposes, please update tlsCACerts with the certificates accordinginly.

  These connection profiles can also be used to create connection to the Fabric blockchain network, via the Fablet web UI.

Web project

Under folder ./web.
It is developed in Javascript with React.

• Debug environment
  Please open ./web/src/common/debugflag.js, and then change const variable DEBUG to true in development.

• Dependencies

  yarn install
  

• Run in development

  yarn start
  

  Then open browser and access the default site: http://localhost:3000.