[FAB-15051] delStandard() function for high-throughput

This change is to add a delStandard() function to the
high-throughput fabric sample, as well as fix a typo
in putStandard(). In addition to modifying the
chaincode, an additional bash script,
'del-traditional.sh', was created to remotely delete
a created asset from within the docker CLI in
accordance with the sample walkthrough.

This change is necessary to demonstrate the full
capability of the fabric Shim library, such that no
assets remain on the ledger that the user doesn't want

This change was tested on a local deployment of
Fabric 1.4, using the 'Basic Network' asset that
was created by Ethan Fox for internal use by the
IBM Blockchain Innovation Unit within GBS Global.

Change-Id: I34488dc3131f817563568a43f923856fecb07a5a
Signed-off-by: Ethan Fox <Ethan.Fox@ibm.com>

high-throughput/README.md

@@ -170,7 +170,7 @@ row in the ledger 1000 times, with a value incrementing by one each time (i.e. t
 expectation would be that the final value of the row is 999. However, the final value changes each time this script is run and you'll find
 errors in the peer and orderer logs.
 
-There is one other script, `get-traditional.sh`, which simply gets the value of a row in the traditional way, with no deltas.
+There are two other scripts, `get-traditional.sh`, which simply gets the value of a row in the traditional way, with no deltas, and `del-traditional.sh` will delete an asset in the traditional way.
 
 Examples:
 `./many-updates.sh testvar 100 +` --> final value from `./get-invoke.sh testvar` should be 100000

high-throughput/chaincode/high-throughput.go

@@ -71,6 +71,8 @@ func (s *SmartContract) Invoke(APIstub shim.ChaincodeStubInterface) sc.Response
 		return s.putStandard(APIstub, args)
 	} else if function == "getstandard" {
 		return s.getStandard(APIstub, args)
+	} else if function == "delstandard" {
+		return s.delStandard(APIstub, args)
 	}
 
 	return shim.Error("Invalid Smart Contract function name.")
@@ -360,7 +362,7 @@ func (s *SmartContract) putStandard(APIstub shim.ChaincodeStubInterface, args []
 
 	_, getErr := APIstub.GetState(name)
 	if getErr != nil {
-		return shim.Error(fmt.Sprintf("Failed to retrieve the statr of %s: %s", name, getErr.Error()))
+		return shim.Error(fmt.Sprintf("Failed to retrieve the state of %s: %s", name, getErr.Error()))
 	}
 
 	putErr := APIstub.PutState(name, []byte(valStr))
@@ -381,3 +383,14 @@ func (s *SmartContract) getStandard(APIstub shim.ChaincodeStubInterface, args []
 
 	return shim.Success(val)
 }
+
+func (s *SmartContract) delStandard(APIstub shim.ChaincodeStubInterface, args []string) sc.Response {
+	name := args[0]
+
+	getErr := APIstub.DelState(name)
+	if getErr != nil {
+		return shim.Error(fmt.Sprintf("Failed to delete state: %s", getErr.Error()))
+	}
+
+	return shim.Success(nil)
+}

high-throughput/scripts/del-traditional.sh

@@ -0,0 +1,7 @@
+#
+# Copyright IBM Corp All Rights Reserved
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+peer chaincode invoke -o orderer.example.com:7050 --tls $CORE_PEER_TLS_ENABLED --cafile /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem -C $CHANNEL_NAME -n $CC_NAME -c '{"Args":["delstandard","'$1'"]}'