add decodeArgs method for functioncall

Author: DmitriyHellyeah

go.sum

@@ -4,3 +4,11 @@ github.com/near/borsh-go v0.3.1 h1:ukNbhJlPKxfua0/nIuMZhggSU8zvtRP/VyC25LLqPUA=
 github.com/near/borsh-go v0.3.1/go.mod h1:NeMochZp7jN/pYFuxLkrZtmLqbADmnp/y1+/dL+AsyQ=
 golang.org/x/crypto v0.0.0-20220919173607-35f4265a4bc0 h1:a5Yg6ylndHHYJqIPrdq0AhvR6KTvDTAvgBtaidhEevY=
 golang.org/x/crypto v0.0.0-20220919173607-35f4265a4bc0/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 h1:CIJ76btIcR3eFI5EgSo6k1qKw9KJexJuRLI9G7Hp5wE=
+golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

types/transaction.go

@@ -1,5 +1,10 @@
 package types
 
+import (
+	"encoding/base64"
+	"encoding/json"
+)
+
 const (
 	EmptyTxRoot = "11111111111111111111111111111111"
 )
@@ -34,6 +39,19 @@ type FunctionCall struct {
 	MethodName string `json:"method_name"`
 }
 
+func (FunctionCall *FunctionCall) DecodeArgs(to interface{}) error {
+	rawArgs, err := base64.StdEncoding.DecodeString(FunctionCall.Args)
+	if err != nil {
+		return err
+	}
+
+	err = json.Unmarshal(rawArgs, to)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 type Transaction struct {
 	Actions    []interface{} `json:"actions"`
 	Hash       string        `json:"hash"`