git.delta.rocks / unique-network / refs/commits / b3ebe07cdd5d

333*/333*/
334334
335```335```
336
337
338## Karura token transfer
339
340To get started, you need to open the hrmr channel.
341Next, we need to register our asset in Karura.
342
343assetRegistry -> registerForeignAsset(location, metadata)
344location:
345	V0(X2(Parent, Parachain(PARA_ID))) 
346metadata:
347	name         OPL
348	symbol       OPL
349	decimals     15
350minimalBalance	 1
351
352Next, we can send tokens of our chain:
353polkadotXcm -> reserveTransferAssets
354dest:
355	V0(X2(Parent, Parachain(KARURA_PARA_ID))) 
356beneficiary:
357	X1(AccountId(Any, ACCOUNT))
358assets:
359	V1(Concrete(0,Here), Fungible(AMOUNT))
360feeAssetItem: 
361	0	
362weightLimit:
363	Limit
364	
365
366The result will be displayed in ChainState   
367tokens -> accounts	
336368

--- a/launch-config.json
+++ b/launch-config.json
@@ -9,7 +9,8 @@
                 "rpcPort": 9843,
                 "port": 30444,
                 "flags": [
-                    "-lparachain::candidate_validation=debug"
+                    "-lparachain::candidate_validation=debug",
+                    "-lxcm=trace"
                 ]
             },
             {
@@ -18,7 +19,8 @@
                 "rpcPort": 9854,
                 "port": 30555,
                 "flags": [
-                    "-lparachain::candidate_validation=debug"
+                    "-lparachain::candidate_validation=debug",
+                    "-lxcm=trace"
                 ]
             },
             {
@@ -67,7 +69,8 @@
                     "flags": [
                         "--rpc-cors=all",
                         "--unsafe-rpc-external",
-                        "--unsafe-ws-external"
+                        "--unsafe-ws-external",
+                        "-lxcm=trace"
                     ]
                 },
                 {
@@ -78,13 +81,46 @@
                     "flags": [
                         "--rpc-cors=all",
                         "--unsafe-rpc-external",
-                        "--unsafe-ws-external"
+                        "--unsafe-ws-external",
+                        "-lxcm=trace"
                     ]
                 }
             ]
+        },
+        {
+            "bin": "../Acala/target/release/acala",
+            "id": "2000",
+            "chain":  "karura-dev",
+			"balance": "1000000000000000000000",
+			"nodes": [
+				{
+					"wsPort": 9988,
+					"port": 31200,
+					"name": "alice",
+                    "flags": [
+                        "--rpc-cors=all",
+                        "--unsafe-rpc-external",
+                        "--unsafe-ws-external",
+                        "-lxcm=trace"
+                    ]
+				}
+			]
+		}
+    ],
+    "simpleParachains": [],
+    "hrmpChannels": [
+        {
+            "sender": 2000,
+            "recipient": 1000,
+            "maxCapacity": 8,
+            "maxMessageSize": 512
+        },
+        {
+            "sender": 1000,
+            "recipient": 2000,
+            "maxCapacity": 8,
+            "maxMessageSize": 512
         }
     ],
-    "simpleParachains": [],
-    "hrmpChannels": [],
     "finalization": false
 }

--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -82,13 +82,22 @@
 use xcm::v1::{BodyId, Junction::*, MultiLocation, NetworkId, Junctions::*};
 use xcm_builder::{
 	AccountId32Aliases, AllowTopLevelPaidExecutionFrom, AllowUnpaidExecutionFrom, CurrencyAdapter,
-	EnsureXcmOrigin, FixedWeightBounds, IsConcrete, LocationInverter, NativeAsset,
+	EnsureXcmOrigin, FixedWeightBounds, LocationInverter, NativeAsset,
 	ParentAsSuperuser, ParentIsDefault, RelayChainAsNative, SiblingParachainAsNative,
 	SiblingParachainConvertsVia, SignedAccountId32AsNative, SignedToAccountId32,
 	SovereignSignedViaLocation, TakeWeightCredit, UsingComponents,
 };
 use xcm_executor::{Config, XcmExecutor};
 
+use xcm::latest::{
+//	Xcm, 	
+	AssetId::{Concrete},
+	Fungibility::Fungible as XcmFungible,
+	MultiAsset
+};
+use xcm_executor::traits::MatchesFungible;
+use sp_runtime::traits::CheckedConversion;
+
 // mod chain_extension;
 // use crate::chain_extension::{NFTExtension, Imbalance};
 
@@ -616,12 +625,24 @@
 	AccountId32Aliases<RelayNetwork, AccountId>,
 );
 
+
+pub struct OnlySelfCurrency;
+impl<B: TryFrom<u128>> MatchesFungible<B> for OnlySelfCurrency {
+	fn matches_fungible(a: &MultiAsset) -> Option<B> {
+		match (&a.id, &a.fun) {
+			(Concrete(_), XcmFungible(ref amount)) =>
+				CheckedConversion::checked_from(*amount),
+			_ => None,
+		}
+	}
+}
+
 /// Means for transacting assets on this chain.
 pub type LocalAssetTransactor = CurrencyAdapter<
 	// Use this currency:
 	Balances,
 	// Use this currency when it is a fungible asset matching the given location or name:
-	IsConcrete<RelayLocation>,
+	OnlySelfCurrency,
 	// Do a simple punn to convert an AccountId32 MultiLocation into a native chain account ID:
 	LocationToAccountId,
 	// Our chain's account ID type (we can't get away without mentioning it explicitly):