Transaction Fee Module

node-template/runtime/Cargo.toml

@@ -16,6 +16,7 @@ version = { package = "sr-version", path = "../../core/sr-version", default_feat
 srml-support = { path = "../../srml/support", default_features = false }
 primitives = { package = "substrate-primitives", path = "../../core/primitives", default_features = false }
 balances = { package = "srml-balances", path = "../../srml/balances", default_features = false }
+fees = { package = "srml-fees", path = "../../srml/fees", default_features = false }
 consensus = { package = "srml-consensus", path = "../../srml/consensus", default_features = false }
 aura = { package = "srml-aura", path = "../../srml/aura", default_features = false }
 executive = { package = "srml-executive", path = "../../srml/executive", default_features = false }
@@ -39,6 +40,7 @@ std = [
 	"runtime-io/std",
 	"srml-support/std",
 	"balances/std",
+	"fees/std",
 	"executive/std",
 	"aura/std",
 	"indices/std",

node-template/runtime/src/lib.rs

@@ -167,6 +167,12 @@ impl balances::Trait for Runtime {
 	type Event = Event;
 }
 
+impl fees::Trait for Runtime {
+	type Amount = u128;
+	type TransferAsset = Balances;
+	type Event = Event;
+}
+
 impl sudo::Trait for Runtime {
 	/// The uniquitous event type.
 	type Event = Event;

srml/balances/src/lib.rs

@@ -27,11 +27,12 @@
 use rstd::prelude::*;
 use rstd::{cmp, result};
 use parity_codec::Codec;
-use runtime_support::{StorageValue, StorageMap, Parameter};
-use runtime_support::traits::{UpdateBalanceOutcome, Currency, EnsureAccountLiquid, OnFreeBalanceZero};
-use runtime_support::dispatch::Result;
-use primitives::traits::{Zero, SimpleArithmetic, TransferAsset,
-	As, StaticLookup, Member, CheckedAdd, CheckedSub, MaybeSerializeDebug};
+use parity_codec_derive::{Encode, Decode};
+use srml_support::{StorageValue, StorageMap, Parameter, decl_event, decl_storage, decl_module, ensure};
+use srml_support::traits::{UpdateBalanceOutcome, Currency, EnsureAccountLiquid, OnFreeBalanceZero};
+use srml_support::dispatch::Result;
+use primitives::traits::{Zero, SimpleArithmetic,
+	As, StaticLookup, Member, CheckedAdd, CheckedSub, MaybeSerializeDebug, TransferAsset};
 use system::{IsDeadAccount, OnNewAccount, ensure_signed};
 
 mod mock;
@@ -121,7 +122,7 @@ decl_storage! {
 
 						let per_block = balance / length;
 						let offset = begin * per_block + balance;
-						
+
 						(who.clone(), VestingSchedule { offset, per_block })
 					})
 			}).collect::<Vec<_>>()