diff --git a/web3swift/ABIv2/Classes/ABIv2Elements.swift b/web3swift/ABIv2/Classes/ABIv2Elements.swift
index 29fd9cfad..ec6e455b3 100755
--- a/web3swift/ABIv2/Classes/ABIv2Elements.swift
+++ b/web3swift/ABIv2/Classes/ABIv2Elements.swift
@@ -9,7 +9,7 @@
 import Foundation
 import BigInt
 
-extension ABIv2 {
+public extension ABIv2 {
     // JSON Decoding
     public struct Input: Decodable {
         var name: String?
@@ -48,16 +48,16 @@ extension ABIv2 {
         case event(Event)
         
         public struct InOut {
-            let name: String
-            let type: ParameterType
+            public let name: String
+            public let type: ParameterType
         }
         
         public struct Function {
-            let name: String?
-            let inputs: [InOut]
-            let outputs: [InOut]
-            let constant: Bool
-            let payable: Bool
+            public let name: String?
+            public let inputs: [InOut]
+            public let outputs: [InOut]
+            public let constant: Bool
+            public let payable: Bool
         }
         
         public struct Constructor {
diff --git a/web3swift/Utils/Classes/EIP681.swift b/web3swift/Utils/Classes/EIP681.swift
index c88982aa8..d50a33028 100644
--- a/web3swift/Utils/Classes/EIP681.swift
+++ b/web3swift/Utils/Classes/EIP681.swift
@@ -116,6 +116,7 @@ extension Web3 {
             
             var code = EIP681Code(targetAddress)
             if chainIDString != nil {
+                chainIDString!.remove(at: chainIDString!.startIndex)
                 code.chainID = BigUInt(chainIDString!)
             }
             if tail == nil {
@@ -137,7 +138,13 @@ extension Web3 {
                     switch inputType {
                     case .address:
                         let val = EIP681Code.TargetAddress(value)
-                        nativeValue = val as AnyObject
+                        switch val {
+                        case .ethereumAddress(let ethereumAddress):
+                            nativeValue = ethereumAddress as AnyObject
+                        case .ensAddress(let ens):
+                            //TODO: - convert ens into ethereum
+                            nativeValue = ens as AnyObject
+                        }
                     case .uint(bits: _):
                         if let val = BigUInt(value, radix: 10) {
                             nativeValue = val as AnyObject
@@ -164,6 +171,15 @@ extension Web3 {
                         } else if let val = value.data(using: .utf8) {
                             nativeValue = val as AnyObject
                         }
+                    case .bool:
+                        switch value {
+                        case "true","True","1":
+                            nativeValue = true as AnyObject
+                        case "false", "False", "0":
+                            nativeValue = false as AnyObject
+                        default:
+                            nativeValue = true as AnyObject
+                        }
                     default:
                         continue
                     }