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Setup default fee rate #1497

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Merged
gztensor merged 1 commit into from
Apr 2, 2025
Merged

Setup default fee rate #1497

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2 changes: 1 addition & 1 deletion pallets/swap/src/pallet/impls.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1345,7 +1345,7 @@ mod tests {

// Expected fee amount
let fee_rate = FeeRate::<Test>::get(netuid) as f64 / u16::MAX as f64;
let expected_fee = output_amount * fee_rate as u64;
let expected_fee = (output_amount as f64 * fee_rate) as u64;

// Global fees should be updated
let actual_global_fee = match order_type {
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10 changes: 7 additions & 3 deletions pallets/swap/src/pallet/mod.rs
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Expand Up @@ -59,11 +59,15 @@ mod pallet {
type MaxSqrtPrice: Get<SqrtPrice>;
}

/// Default fee rate if not set
#[pallet::type_value]
pub fn DefaultFeeRate() -> u16 {
196 // 0.3 %
}

/// The fee rate applied to swaps per subnet, normalized value between 0 and u16::MAX
///
/// For example, 0.3% is approximately 196
#[pallet::storage]
pub type FeeRate<T> = StorageMap<_, Twox64Concat, NetUid, u16, ValueQuery>;
pub type FeeRate<T> = StorageMap<_, Twox64Concat, NetUid, u16, ValueQuery, DefaultFeeRate>;

// Global accrued fees in tao per subnet
#[pallet::storage]
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