nautilus_blockchain/events/
pool_created.rs

1// -------------------------------------------------------------------------------------------------
2//  Copyright (C) 2015-2026 Nautech Systems Pty Ltd. All rights reserved.
3//  https://nautechsystems.io
4//
5//  Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
6//  You may not use this file except in compliance with the License.
7//  You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
8//
9//  Unless required by applicable law or agreed to in writing, software
10//  distributed under the License is distributed on an "AS IS" BASIS,
11//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12//  See the License for the specific language governing permissions and
13//  limitations under the License.
14// -------------------------------------------------------------------------------------------------
15
16use alloy::primitives::{Address, U160};
17use nautilus_model::defi::PoolIdentifier;
18
19/// Represents a liquidity pool creation event from a decentralized exchange.
20// This struct models the data structure of a pool creation event emitted by DEX factory contracts.
21#[derive(Debug, Clone)]
22pub struct PoolCreatedEvent {
23    /// The block number when the pool was created.
24    pub block_number: u64,
25    /// The blockchain address of the first token in the pair.
26    pub token0: Address,
27    /// The blockchain address of the second token in the pair.
28    pub token1: Address,
29    /// The blockchain address of the created liquidity pool contract.
30    /// For V2/V3: the pool contract address
31    /// For V4: the PoolManager contract address
32    pub pool_address: Address,
33    /// The unique identifier for this pool.
34    pub pool_identifier: PoolIdentifier,
35    /// The fee tier of the pool, specified in basis points (e.g., 500 = 0.05%, 3000 = 0.3%).
36    pub fee: Option<u32>,
37    /// The tick spacing parameter that controls the granularity of price ranges.
38    pub tick_spacing: Option<u32>,
39    /// The square root of the price ratio encoded as a fixed point number with 96 fractional bits.
40    pub sqrt_price_x96: Option<U160>,
41    /// The current tick of the pool.
42    pub tick: Option<i32>,
43    /// The hooks contract address for Uniswap V4 pools.
44    pub hooks: Option<Address>,
45}
46
47impl PoolCreatedEvent {
48    /// Creates a new [`PoolCreatedEvent`] instance with the specified parameters.
49    #[must_use]
50    pub fn new(
51        block_number: u64,
52        token0: Address,
53        token1: Address,
54        pool_address: Address,
55        pool_identifier: PoolIdentifier,
56        fee: Option<u32>,
57        tick_spacing: Option<u32>,
58    ) -> Self {
59        Self {
60            block_number,
61            token0,
62            token1,
63            pool_address,
64            pool_identifier,
65            fee,
66            tick_spacing,
67            sqrt_price_x96: None,
68            tick: None,
69            hooks: None,
70        }
71    }
72
73    /// Sets the initialization parameters for the pool after it has been initialized.
74    pub fn set_initialize_params(&mut self, sqrt_price_x96: U160, tick: i32) {
75        self.sqrt_price_x96 = Some(sqrt_price_x96);
76        self.tick = Some(tick);
77    }
78
79    /// Sets the hooks contract address for this pool.
80    ///
81    /// This is typically called for Uniswap V4 pools that have hooks enabled.
82    pub fn set_hooks(&mut self, hooks: Address) {
83        self.hooks = Some(hooks);
84    }
85}
nautilus_blockchain/events/pool_created.rs

nautilus_blockchain/events/
pool_created.rs
