Hyperledger Fabric ERC20 chaincode deployment

1. Initialize HLF network and deploy erc20Token chaincode

check fabric binary:
run from any folder

$ docker images

if you find fabric images

cd token-erc-20

$ ./networkUp.sh

to deploy chaincode we need to run this script
 cd token-erc-20

$ ./deployChaincode.sh erc20Token

-------------------------------

Now, lets move towards application part

$ cd api_server $ npm install (I used node version 12.22.0)

$ node registerAdmin.js

output:
Wallet path: /home/akshay/fabric/HLF-erc20Token-starter/token-erc-20/api-server/wallet
Successfully enrolled admin user "admin" and imported it into the wallet

Register Minter and Reciever:

$ node registerMinter.js $ node registerRecevier.js

we invoke chaincode by this user John we have setToken details and fech data from ledger.

$ node invokeByMinter.js out put: Token details :: Alpha Mint status :: User balance :: Transfer status :: User balance after transfer ::

Run Receiver script to check Dina's balance:

$ node invokeByRecevier.js

day - 2 

create chain code fun for mint, transfer along with balance and accountId

Note:
once you deploy chaincode, if you updated logic of chaincode and you want to use that logic
need to upgrade chaincode with new_cc_name.

$ cd token-erc-20

$ ./upgradeChaincode.sh CC_Name

After upgrading chaincode we will test our ERC20 token functions

In node app by invokeByMinter script for minting 9000 Tokens Transfer it to different user and check balance .

$node invokeByMinter.js To stop container $ docker stop

To down network or we can say that to close development setup we need to do.

$ cd token-erc-20

check files you will get networkDown.sh script we need to execute it.

$ ./networkDown.sh

Helpful articles

Pruning Docker images and volumes for a clean HLF install:

https://stackoverflow.com/questions/52583128/how-do-i-resolve-this-error-error-failed-to-create-deliver-client-failed-to-c

Install HLF Docker images (be sure to keep fabric and fabric-ca consistent):

https://hyperledger-fabric.readthedocs.io/en/release-2.2/install.html

Credit to Akshay

Many thanks to Akshay Kurhekar and his article [https://medium.com/@akshay.kurhekar1014662/erc20-token-implementation-in-hyperledger-fabric-103cbfc21379] to simplify this process.