fix: add utils file for keys and fix tx link

Author: tsnewnami

pkg/internal/common/helper.go

@@ -379,7 +379,7 @@ func GetTransactionLink(txHash string, chainId *big.Int) string {
 	if !ok {
 		return txHash
 	} else {
-		return fmt.Sprintf("%s/%s", chainMetadata.BlockExplorerUrl, txHash)
+		return fmt.Sprintf("%s/tx/%s", chainMetadata.BlockExplorerUrl, txHash)
 	}
 }
 

pkg/internal/common/helper_test.go

@@ -24,13 +24,13 @@ func TestGetTransactionLink(t *testing.T) {
 			name:           "valid mainnet tx hash",
 			chainID:        big.NewInt(1),
 			txHash:         "0x123",
-			expectedTxLink: fmt.Sprintf("%s/%s", utils.MainnetBlockExplorerUrl, "0x123"),
+			expectedTxLink: fmt.Sprintf("%s/tx/%s", utils.MainnetBlockExplorerUrl, "0x123"),
 		},
 		{
 			name:           "valid holesky tx hash",
 			chainID:        big.NewInt(17000),
 			txHash:         "0x123",
-			expectedTxLink: fmt.Sprintf("%s/%s", utils.HoleskyBlockExplorerUrl, "0x123"),
+			expectedTxLink: fmt.Sprintf("%s/tx/%s", utils.HoleskyBlockExplorerUrl, "0x123"),
 		},
 		{
 			name:           "valid custom chain tx hash",

pkg/keys/utils.go

@@ -0,0 +1,38 @@
+package keys
+
+import (
+	"fmt"
+	"math/big"
+
+	"github.com/Layr-Labs/eigenlayer-cli/pkg/internal/common"
+	"github.com/Layr-Labs/eigensdk-go/crypto/bls"
+)
+
+// ParseBlsPrivateKey parses a BLS private key from a string either in hex or large integer format.
+func ParseBlsPrivateKey(privateKey string) (*bls.KeyPair, error) {
+	privateKeyBigInt := new(big.Int)
+	_, ok := privateKeyBigInt.SetString(privateKey, 10)
+	var blsKeyPair *bls.KeyPair
+	var err error
+	if ok {
+		fmt.Println("Importing from large integer")
+		blsKeyPair, err = bls.NewKeyPairFromString(privateKey)
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		// Try to parse as hex
+		fmt.Println("Importing from hex")
+		z := new(big.Int)
+		privateKey = common.Trim0x(privateKey)
+		_, ok := z.SetString(privateKey, 16)
+		if !ok {
+			return nil, ErrInvalidHexPrivateKey
+		}
+		blsKeyPair, err = bls.NewKeyPairFromString(z.String())
+		if err != nil {
+			return nil, err
+		}
+	}
+	return blsKeyPair, nil
+}