- added trim function for the ethereum private key

bridge/eth/client.go

@@ -71,7 +71,8 @@ func NewClient(args ArgsClient) (*client, error) {
 	if err != nil {
 		return nil, err
 	}
-	privateKey, err := crypto.HexToECDSA(string(privateKeyBytes))
+	privateKeyString := core.TrimWhiteSpaceCharacters(string(privateKeyBytes))
+	privateKey, err := crypto.HexToECDSA(privateKeyString)
 	if err != nil {
 		return nil, err
 	}

bridge/eth/client_test.go

@@ -36,7 +36,7 @@ var (
 	}
 )
 
-const TestPrivateKey = "60f3849d7c8d93dfce1947d17c34be3e4ea974e74e15ce877f0df34d7192efab"
+const TestPrivateKey = " 60f3849d7c8d93dfce1947d17c34be3e4ea974e74e15ce877f0df34d7192efab\n\t "
 const GasLimit = uint64(400000)
 
 func TestGetPending(t *testing.T) {
@@ -202,7 +202,7 @@ func TestSign(t *testing.T) {
 			},
 		}
 
-		sk, err := crypto.HexToECDSA(TestPrivateKey)
+		sk, err := crypto.HexToECDSA(core.TrimWhiteSpaceCharacters(TestPrivateKey))
 		require.Nil(t, err)
 
 		pk := sk.Public()
@@ -624,7 +624,7 @@ func TestClient_GetTransactionsStatuses(t *testing.T) {
 func privateKey(t *testing.T) *ecdsa.PrivateKey {
 	t.Helper()
 
-	sk, err := crypto.HexToECDSA(TestPrivateKey)
+	sk, err := crypto.HexToECDSA(core.TrimWhiteSpaceCharacters(TestPrivateKey))
 	if err != nil {
 		t.Fatal(err)
 		return nil

cmd/bridge/config/ethereum.sk

@@ -1 +1 @@
-9bb971db41e3815a669a71c3f1bcb24e0b81f21e04bf11faa7a34b9b40e7cfb1
+9bb971db41e3815a669a71c3f1bcb24e0b81f21e04bf11faa7a34b9b40e7cfb1

core/converters.go

@@ -1,5 +1,7 @@
 package core
 
+import "strings"
+
 // TODO - move this as a method in AddressHandler
 
 // ConvertFromByteSliceToArray will convert the provided buffer to its [32]byte representation
@@ -9,3 +11,10 @@ func ConvertFromByteSliceToArray(buff []byte) [32]byte {
 
 	return result
 }
+
+// TrimWhiteSpaceCharacters will remove the white spaces from the input string
+func TrimWhiteSpaceCharacters(input string) string {
+	cutset := "\n\t "
+
+	return strings.Trim(input, cutset)
+}

core/converters_test.go

@@ -14,3 +14,21 @@ func TestConvertFromByteSliceToArray(t *testing.T) {
 	result := ConvertFromByteSliceToArray(buff)
 	assert.Equal(t, buff, result[:])
 }
+
+func TestTrimWhiteSpaceCharacters(t *testing.T) {
+	t.Parallel()
+
+	data := "aaII139HSAh32q782!$#*$(nc"
+
+	input := " " + data
+	assert.Equal(t, data, TrimWhiteSpaceCharacters(input))
+
+	input = "\t " + data
+	assert.Equal(t, data, TrimWhiteSpaceCharacters(input))
+
+	input = "\t " + data + "\n"
+	assert.Equal(t, data, TrimWhiteSpaceCharacters(input))
+
+	input = "\t\n " + data + "\n\n\n\n\t"
+	assert.Equal(t, data, TrimWhiteSpaceCharacters(input))
+}