Construct address from PubkeyHash

- Added additional constructor to let one create an Address object from a pubkeyhash.
twostack · Oct 20, 2023 · 09e4d45 · 09e4d45
1 parent b43c85e
commit 09e4d45
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diff --git a/lib/src/address.dart b/lib/src/address.dart
@@ -105,6 +105,10 @@ class Address {
 
   }
 
+  Address.fromPubkeyHash(String pubkeyHashHex, NetworkType networkType){
+    _fromPubkeyHash(pubkeyHashHex, networkType);
+  }
+
 
   /// Serialise this address object to a base58-encoded string
   ///
@@ -158,6 +162,24 @@ class Address {
       return utf8Decoded;
   }
 
+  void _fromPubkeyHash(String pubkeyHashHex, NetworkType networkType){
+
+    var versionByte;
+    if (networkType == NetworkType.MAIN) {
+      versionByte = Networks.getNetworkVersion(NetworkAddressType.MAIN_PKH);
+    }
+    else {
+      versionByte = Networks.getNetworkVersion(NetworkAddressType.TEST_PKH);
+    }
+    _version = versionByte & 0XFF;
+
+    _networkTypes = Networks.getNetworkTypes(_version!);
+    _addressType = Networks.getAddressType(_version!);
+    _networkType = Networks.getNetworkTypes(_version!)[0];
+    _publicKeyHash = pubkeyHashHex;
+
+  }
+
   void _fromBase58(String address){
 
       address = address.trim();

diff --git a/test/address_test.dart b/test/address_test.dart
@@ -232,5 +232,12 @@ void main() {
       expect(address.toString(), equals('16JXnhxjJUhxfyx4y6H4sFcxrgt8kQ8ewX'));
   });
 
+  test('should create an address from Public Key Hash (PKH)',(){
+      var pubkeyHash = '3c3fa3d4adcaf8f52d5b1843975e122548269937';
+      var address = Address.fromPubkeyHash(pubkeyHash, NetworkType.MAIN);
+
+      expect(address.toBase58(), equals("16VZnHwRhwrExfeHFHGjwrgEMq8VcYPs9r"));
+  });
+
 }