Sample ERC20 token implementation with Hyperledger Fabric chaincode (Golang)

This is the Golang chaincode version of Ethereum's ERC20 token standard based OpenZeppelin's implementation

Basic features:

• Basic Token
• Ownable Token
• Detailed Token
• Mintable Token
• Burnable Token
• Pausable Token

Custom feature:

• Transaction memo - able to attach an 'memo' to a transaction with a extra parameter to Transfer or TransferFrom methods
• Unregistered account check - accounts that are not registered can not do transactions, register them first with Activate chaincode method

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Demo

Set up the network via development tool (Hurley) or manual set up via the official document

Install & instantiate the chaincode on the network

chaincodes are placed inside a separated Docker container

total supply of tokens are equal to the miner's (chaincode caller) account

try to transfer some tokens to another account --> error due to the target user is not 'activated'

'activate' said account

transfer success!

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Offline Unit Testing

Manually apply this patch for ABAC testing with mockStub (change line 69 & 361 like the patch in file loyalty-token-hf\hlt\go_workspace\src\github.com\hyperledger\fabric\core\chaincode\shim\mockstub.go), after you've installed Go chaincode libraries of course

Get Ginkgo test framework

go get github.com/onsi/ginkgo/ginkgo
go get github.com/onsi/gomega/...

Execute go test -v to run the test suites without the need to start up the block chain

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For details please read into sample_token.go