fix: decode contract type, added decode demo (#8)

* fix: decode contract type, added decode demo

* roll back default

* change demo decode tx to transfer

* added error treatment

cmd/demo/decode/main.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/klever-io/klever-go-sdk/cmd/demo"
+	"github.com/klever-io/klever-go-sdk/models"
+)
+
+func main() {
+
+	accounts, wallets, kc, err := demo.InitWallets()
+	if err != nil {
+		panic(err)
+	}
+
+	base := accounts[0].NewBaseTX()
+	tx, err := kc.MultiTransfer(
+		base,
+		"KLV",
+		[]models.ToAmount{{
+			ToAddress: accounts[1].Address().Bech32(),
+			Amount:    1000,
+		}})
+	if err != nil {
+		panic(err)
+	}
+
+	err = tx.Sign(wallets[0])
+	if err != nil {
+		panic(err)
+	}
+
+	decodedTx, err := kc.Decode(tx)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println("\n\n\nEncodedTX: ", tx)
+	fmt.Println("\n\n\nDecodedTX: ", decodedTx)
+}

models/transactionAPI.go

@@ -34,7 +34,7 @@ type TransactionAPI struct {
 	Signature    []string                 `json:"signature,omitempty"`
 	SearchOrder  uint32                   `json:"searchOrder"`
 	Receipts     []map[string]interface{} `json:"receipts"`
-	Contracts    []*proto.TXContract      `json:"contract"`
+	Contracts    []*TXContractAPI         `json:"contract"`
 }
 
 func (t *TransactionAPI) String() string {