Rename token-account-based Directory to token-erc-20

FAB-18275

Signed-off-by: Julian Castrence <juliancastrence@ibm.com>

README.md

@@ -41,7 +41,7 @@ Additional samples demonstrate various Fabric use cases and application patterns
 | -------------|------------------------------|------------------|
 | [Commercial paper](commercial-paper) | Explore a use case and detailed application development tutorial in which two organizations use a blockchain network to trade commercial paper. | [Commercial paper tutorial](https://hyperledger-fabric.readthedocs.io/en/latest/tutorial/commercial_paper.html) |
 | [Off chain data](off_chain_data) | Learn how to use the Peer channel-based event services to build an off-chain database for reporting and analytics. | [Peer channel-based event services](https://hyperledger-fabric.readthedocs.io/en/latest/peer_event_services.html) |
-| [Token account-based](token-account-based) | Smart contract demonstrating how to create and transfer fungible tokens using an account-based model. | [README](token-account-based/README.md) |
+| [Token ERC-20](token-erc-20) | Smart contract demonstrating how to create and transfer fungible tokens using an account-based model. | [README](token-erc-20/README.md) |
 | [Token UTXO](token-utxo) | Smart contract demonstrating how to create and transfer fungible tokens using a UTXO (unspent transaction output) model. | [README](token-utxo/README.md) |
 | [High throughput](high-throughput) | Learn how you can design your smart contract to avoid transaction collisions in high volume environments. | [README](high-throughput/README.md) |
 | [Chaincode](chaincode) | A set of other sample smart contracts, many of which were used in tutorials prior to the asset transfer sample series. | |

token-account-based/chaincode-go/go.mod

@@ -1,5 +0,0 @@
-module github.com/hyperledger/fabric-samples/token-account-based/chaincode-go
-
-go 1.14
-
-require github.com/hyperledger/fabric-contract-api-go v1.1.0

token-erc-20/README.md

@@ -33,12 +33,12 @@ You can use the test network script to deploy the account-based token contract t
 
 **For a Go Contract:**
 ```
-./network.sh deployCC -ccn token_account -ccp ../token-account-based/chaincode-go/
+./network.sh deployCC -ccn token_account -ccp ../token-erc-20/chaincode-go/
 ```
 
 **For a JavaScript Contract:**
 ```
-./network.sh deployCC -ccn token_account -ccp ../token-account-based/chaincode-javascript/ -ccl javascript
+./network.sh deployCC -ccn token_account -ccp ../token-erc-20/chaincode-javascript/ -ccl javascript
 ```
 
 The above command deploys the go chaincode with short name `token_account`. The smart contract will use the default endorsement policy of majority of channel members.

token-erc-20/chaincode-go/chaincode/token_contract.go

@@ -311,7 +311,7 @@ func (s *SmartContract) TransferFrom(ctx contractapi.TransactionContextInterface
 // Dependant functions include Transfer and TransferFrom.
 func transferHelper(ctx contractapi.TransactionContextInterface, from string, to string, value int) error {
 
-	if value < 0 { // transfer of 0 is allowed in ERC20, so just validate against negative amounts
+	if value < 0 { // transfer of 0 is allowed in ERC-20, so just validate against negative amounts
 		return fmt.Errorf("transfer amount cannot be negative")
 	}
 

token-erc-20/chaincode-go/go.mod

@@ -0,0 +1,5 @@
+module github.com/hyperledger/fabric-samples/token-erc-20/chaincode-go
+
+go 1.14
+
+require github.com/hyperledger/fabric-contract-api-go v1.1.0

token-erc-20/chaincode-go/token_erc_20.go

@@ -8,16 +8,16 @@ import (
 	"log"
 
 	"github.com/hyperledger/fabric-contract-api-go/contractapi"
-	"github.com/hyperledger/fabric-samples/token-account-based/chaincode-go/chaincode"
+	"github.com/hyperledger/fabric-samples/token-erc-20/chaincode-go/chaincode"
 )
 
 func main() {
 	tokenChaincode, err := contractapi.NewChaincode(&chaincode.SmartContract{})
 	if err != nil {
-		log.Panicf("Error creating token-account-based chaincode: %v", err)
+		log.Panicf("Error creating token-erc-20 chaincode: %v", err)
 	}
 
 	if err := tokenChaincode.Start(); err != nil {
-		log.Panicf("Error starting token-account-based chaincode: %v", err)
+		log.Panicf("Error starting token-erc-20 chaincode: %v", err)
 	}
 }