### Find Best Trade for Exact Input with Uniswap V2 SDK

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

This snippet demonstrates how to find the best possible swap route for a given input amount of a token. It considers multiple trading pairs and calculates the optimal path across them. Dependencies include the `uniswap_v2_sdk::prelude::*`.

```rust
use uniswap_v2_sdk::prelude::*;

// Setup tokens
let token0 = Token::new(1, address!("0000000000000000000000000000000000000001"), 18, Some("TK0".to_string()), None, 0, 0);
let token1 = Token::new(1, address!("0000000000000000000000000000000000000002"), 18, Some("TK1".to_string()), None, 0, 0);
let token2 = Token::new(1, address!("0000000000000000000000000000000000000003"), 18, Some("TK2".to_string()), None, 0, 0);

// Setup pairs: direct route token0->token2 and indirect token0->token1->token2
let pair_0_2 = Pair::new(
    CurrencyAmount::from_raw_amount(token0.clone(), 1000).unwrap(),
    CurrencyAmount::from_raw_amount(token2.clone(), 1100).unwrap(),
).unwrap();

let pair_0_1 = Pair::new(
    CurrencyAmount::from_raw_amount(token0.clone(), 1000).unwrap(),
    CurrencyAmount::from_raw_amount(token1.clone(), 1000).unwrap(),
).unwrap();

let pair_1_2 = Pair::new(
    CurrencyAmount::from_raw_amount(token1.clone(), 1200).unwrap(),
    CurrencyAmount::from_raw_amount(token2.clone(), 1000).unwrap(),
).unwrap();

// Find best trades: swap 100 token0 for token2
let input_amount = CurrencyAmount::from_raw_amount(token0.clone(), 100).unwrap();
let mut best_trades = vec![];

Trade::best_trade_exact_in(
    vec![pair_0_2, pair_0_1, pair_1_2],
    &input_amount,
    &token2,
    BestTradeOptions {
        max_num_results: Some(3),
        max_hops: Some(3),
    },
    vec![],
    None,
    &mut best_trades,
).unwrap();

// Display results sorted by best output
for (i, trade) in best_trades.iter().enumerate() {
    println!("Trade #{}: {:?}", i + 1, trade.route.path().iter().map(|t| t.symbol()).collect::<Vec<_>>());
    println!("  Output: {} {}", trade.output_amount.to_exact(), trade.output_amount.currency.symbol().unwrap());
    println!("  Price impact: {}%", trade.price_impact.to_significant(2).unwrap());
}

```

--------------------------------

### Create Uniswap V2 SDK Route in Rust

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

Define a swap path through one or more liquidity pairs using the Uniswap V2 SDK for Rust. This involves creating tokens, pairs, and then constructing a route with the desired path and endpoints. It outputs the route's path and mid-price.

```rust
use uniswap_v2_sdk::prelude::*;

// Create three tokens
let token0 = Token::new(1, address!("0000000000000000000000000000000000000001"), 18, Some("TK0".to_string()), None, 0, 0);
let token1 = Token::new(1, address!("0000000000000000000000000000000000000002"), 18, Some("TK1".to_string()), None, 0, 0);
let token2 = Token::new(1, address!("0000000000000000000000000000000000000003"), 18, Some("TK2".to_string()), None, 0, 0);

// Create pairs
let pair_0_1 = Pair::new(
    CurrencyAmount::from_raw_amount(token0.clone(), 1000).unwrap(),
    CurrencyAmount::from_raw_amount(token1.clone(), 1000).unwrap(),
).unwrap();

let pair_1_2 = Pair::new(
    CurrencyAmount::from_raw_amount(token1.clone(), 1000).unwrap(),
    CurrencyAmount::from_raw_amount(token2.clone(), 1000).unwrap(),
).unwrap();

// Create a route from token0 to token2 through token1
let route = Route::new(
    vec![pair_0_1, pair_1_2],
    token0.clone(),
    token2.clone(),
);

// Get route information
let path = route.path();
let mid_price = route.mid_price().unwrap();

println!("Route path: {:?}", path.iter().map(|t| t.symbol()).collect::<Vec<_>>());
println!("Mid price: {}", mid_price.to_significant(6).unwrap());

```

--------------------------------

### Swap ETH for ERC20 Token (Rust)

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

This code demonstrates how to swap native ETH for an ERC20 token using the Uniswap v2 SDK in Rust. It sets up the tokens, creates a pair and route, defines the trade, and generates the transaction parameters.

```rust
use uniswap_v2_sdk::prelude::*;
use alloy_primitives::{U256, address};

// Setup ETH and token
let eth = Ether::on_chain(1);
let weth = eth.wrapped().clone();
let token = Token::new(1, address!("0000000000000000000000000000000000000001"), 18, Some("TK0".to_string()), None, 0, 0);

// Create pair with reserves
let pair = Pair::new(
    CurrencyAmount::from_raw_amount(weth.clone(), 10000).unwrap(),
    CurrencyAmount::from_raw_amount(token.clone(), 10000).unwrap(),
).unwrap();

// Create route from ETH to token
let route = Route::new(vec![pair], eth.clone(), token.clone());

// Create trade: swap 1 ETH for tokens
let input_amount = CurrencyAmount::from_raw_amount(eth.clone(), 1000000000000000000u128).unwrap(); // 1 ETH
let trade = Trade::exact_in(route, input_amount).unwrap();

// Generate transaction parameters
let trade_options = TradeOptions {
    allowed_slippage: Percent::new(10, 1000), // 1% slippage
    deadline: U256::from(1700000000),
    recipient: address!("742d35Cc6634C0532925a3b844Bc9e7595f0bEb0"),
    fee_on_transfer: None,
};

let method_params = swap_call_parameters(&trade, trade_options).unwrap();

println!("Swapping {} ETH", trade.input_amount.to_significant(6).unwrap());
println!("Minimum output: {} {}",
    trade.minimum_amount_out(Percent::new(10, 1000)).unwrap().to_significant(6).unwrap(),
    token.symbol().unwrap()
);
println!("Transaction value: {} wei", method_params.value);

```

--------------------------------

### Create Exact Output Uniswap V2 SDK Trade in Rust

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

Create a trade where you specify the exact amount of output tokens you want to receive using the Uniswap V2 SDK for Rust. This involves setting up tokens, pairs, a route, and defining the trade with a specific output amount. It displays trade details and calculates the maximum input amount required, considering slippage.

```rust
use uniswap_v2_sdk::prelude::*;

// Setup tokens and pairs
let token0 = Token::new(1, address!("0000000000000000000000000000000000000001"), 18, Some("TK0".to_string()), None, 0, 0);
let token1 = Token::new(1, address!("0000000000000000000000000000000000000002"), 18, Some("TK1".to_string()), None, 0, 0);

let pair = Pair::new(
    CurrencyAmount::from_raw_amount(token0.clone(), 1000).unwrap(),
    CurrencyAmount::from_raw_amount(token1.clone(), 1000).unwrap(),
).unwrap();

let route = Route::new(vec![pair], token0.clone(), token1.clone());

// Create exact output trade: receive exactly 100 token1
let output_amount = CurrencyAmount::from_raw_amount(token1.clone(), 100).unwrap();
let trade = Trade::exact_out(route, output_amount).unwrap();

// Access trade information
println!("Trade type: {:?}", trade.trade_type);
println!("Input: {} {}", trade.input_amount.to_exact(), trade.input_amount.currency.symbol().unwrap());
println!("Output: {} {}", trade.output_amount.to_exact(), trade.output_amount.currency.symbol().unwrap());
println!("Execution price: {}", trade.execution_price.to_significant(6).unwrap());

// Calculate maximum input with 0.5% slippage tolerance
let slippage = Percent::new(5, 1000);
let max_input = trade.maximum_amount_in(slippage).unwrap();
println!("Maximum input (0.5% slippage): {} {}", max_input.to_exact(), max_input.currency.symbol().unwrap());

```

--------------------------------

### Create Exact Input Uniswap V2 SDK Trade in Rust

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

Create a trade where you specify the exact amount of input tokens to swap using the Uniswap V2 SDK for Rust. This involves setting up tokens, pairs, a route, and then defining the trade with a specific input amount. It displays trade details, execution price, and calculates the minimum output amount considering slippage.

```rust
use uniswap_v2_sdk::prelude::*;

// Setup tokens and pairs
let token0 = Token::new(1, address!("0000000000000000000000000000000000000001"), 18, Some("TK0".to_string()), None, 0, 0);
let token1 = Token::new(1, address!("0000000000000000000000000000000000000002"), 18, Some("TK1".to_string()), None, 0, 0);

let pair = Pair::new(
    CurrencyAmount::from_raw_amount(token0.clone(), 1000).unwrap(),
    CurrencyAmount::from_raw_amount(token1.clone(), 1000).unwrap(),
).unwrap();

let route = Route::new(vec![pair], token0.clone(), token1.clone());

// Create exact input trade: swap exactly 100 token0
let input_amount = CurrencyAmount::from_raw_amount(token0.clone(), 100).unwrap();
let trade = Trade::exact_in(route, input_amount).unwrap();

// Access trade information
println!("Trade type: {:?}", trade.trade_type);
println!("Input: {} {}", trade.input_amount.to_exact(), trade.input_amount.currency.symbol().unwrap());
println!("Output: {} {}", trade.output_amount.to_exact(), trade.output_amount.currency.symbol().unwrap());
println!("Execution price: {}", trade.execution_price.to_significant(6).unwrap());
println!("Price impact: {}%", trade.price_impact.to_significant(2).unwrap());

// Calculate minimum output with 0.5% slippage tolerance
let slippage = Percent::new(5, 1000);
let min_output = trade.minimum_amount_out(slippage).unwrap();
println!("Minimum output (0.5% slippage): {} {}", min_output.to_exact(), min_output.currency.symbol().unwrap());

```

--------------------------------

### Support Fee-on-Transfer Tokens (Rust)

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

This code demonstrates how to handle fee-on-transfer tokens using the Uniswap v2 SDK in Rust. It defines a custom token with buy and sell fees, creates a trade, and enables fee-on-transfer support in the trade options.

```rust
use uniswap_v2_sdk::prelude::*;
use alloy_primitives::{U256, address};

// Create a fee-on-transfer token (4% sell fee, 10% buy fee)
let fot_token = Token::new(
    1,
    address!("3ed643e9032230f01c6c36060e305ab53ad3b482"),
    18,
    Some("FOT".to_string()),
    Some("Fee Token".to_string()),
    400,   // 4% sell fee (400 basis points)
    1000,  // 10% buy fee (1000 basis points)
);

let normal_token = Token::new(1, address!("0000000000000000000000000000000000000001"), 18, Some("TK0".to_string()), None, 0, 0);

let pair = Pair::new(
    CurrencyAmount::from_raw_amount(fot_token.clone(), 10000).unwrap(),
    CurrencyAmount::from_raw_amount(normal_token.clone(), 10000).unwrap(),
).unwrap();

let route = Route::new(vec![pair], fot_token.clone(), normal_token.clone());
let input_amount = CurrencyAmount::from_raw_amount(fot_token.clone(), 100).unwrap();
let trade = Trade::exact_in(route, input_amount).unwrap();

// Enable fee-on-transfer support
let trade_options = TradeOptions {
    allowed_slippage: Percent::new(10, 1000),
    deadline: U256::from(1700000000),
    recipient: address!("742d35Cc6634C0532925a3b844Bc9e7595f0bEb0"),
    fee_on_transfer: Some(true), // Enable FOT support
};

let method_params = swap_call_parameters(&trade, trade_options).unwrap();

// This will use swapExactTokensForTokensSupportingFeeOnTransferTokens
println!("Using fee-on-transfer compatible swap method");
println!("Calldata: 0x{}", hex::encode(&method_params.calldata));

```

--------------------------------

### Import Prelude in Rust Code

Source: https://github.com/shuhuiluo/uniswap-v2-sdk-rs/blob/main/README.md

This snippet demonstrates how to import the prelude module from the 'uniswap-v2-sdk' crate into your Rust code. This provides convenient access to commonly used types and functions.

```rust
use uniswap_v2_sdk::prelude::*;

```

--------------------------------

### Create a Uniswap V2 Pair in Rust

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

Demonstrates how to create a `Pair` object representing a Uniswap V2 liquidity pool. It involves defining tokens, their reserve amounts, and then instantiating the `Pair`. The `Pair` object allows access to pool properties like token addresses and chain ID.

```rust
use uniswap_v2_sdk::prelude::*;
use alloy_primitives::address;

// Define two tokens
let token_a = Token::new(
    1,
    address!("A0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"),
    6,
    Some("USDC".to_string()),
    Some("USD Coin".to_string()),
    0,
    0,
);

let token_b = Token::new(
    1,
    address!("6B175474E89094C44Da98b954EedeAC495271d0F"),
    18,
    Some("DAI".to_string()),
    Some("DAI Stablecoin".to_string()),
    0,
    0,
);

// Create currency amounts for reserves
let reserve_a = CurrencyAmount::from_raw_amount(token_a.clone(), 1000000).unwrap();
let reserve_b = CurrencyAmount::from_raw_amount(token_b.clone(), 1000000).unwrap();

// Create the pair
let pair = Pair::new(reserve_a, reserve_b).unwrap();

// Access pair properties
println!("Token0: {:?}", pair.token0());
println!("Token1: {:?}", pair.token1());
println!("Pair address: {:?}", pair.address());
println!("Chain ID: {}", pair.chain_id());
```

--------------------------------

### Calculate Liquidity Value with Uniswap V2 SDK Rust

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

This snippet demonstrates how to calculate the underlying token amounts represented by a given amount of liquidity tokens using the Uniswap V2 SDK in Rust. It requires defining tokens, a pair with reserves, total liquidity supply, and the user's liquidity tokens as inputs. The output includes the exact amounts of token0 and token1 that the user's liquidity represents.

```rust
use uniswap_v2_sdk::prelude::*;

let token0 = Token::new(1, address!("0000000000000000000000000000000000000001"), 18, Some("TK0".to_string()), None, 0, 0);
let token1 = Token::new(1, address!("0000000000000000000000000000000000000002"), 18, Some("TK1".to_string()), None, 0, 0);

// Pair with reserves
let pair = Pair::new(
    CurrencyAmount::from_raw_amount(token0.clone(), 10000).unwrap(),
    CurrencyAmount::from_raw_amount(token1.clone(), 10000).unwrap(),
).unwrap();

// Total liquidity supply
let total_supply = CurrencyAmount::from_raw_amount(pair.liquidity_token.clone(), 10000).unwrap();

// Your liquidity tokens
let liquidity = CurrencyAmount::from_raw_amount(pair.liquidity_token.clone(), 1000).unwrap();

// Calculate value of liquidity position
let token0_value = pair.get_liquidity_value(
    &token0,
    &total_supply,
    &liquidity,
    false, // fee_on = false (no protocol fee)
    None,
).unwrap();

let token1_value = pair.get_liquidity_value(
    &token1,
    &total_supply,
    &liquidity,
    false,
    None,
).unwrap();

println!("Your {} liquidity tokens represent:", liquidity.to_exact());
println!("  {} {}", token0_value.to_exact(), token0.symbol().unwrap());
println!("  {} {}", token1_value.to_exact(), token1.symbol().unwrap());

```

--------------------------------

### Generate Uniswap V2 Swap Transaction Parameters with Rust SDK

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

This snippet shows how to generate the necessary calldata and value for a swap transaction on Uniswap V2 Router. It takes a pre-defined `Trade` object and `TradeOptions` to configure slippage, deadline, and recipient. Dependencies include `uniswap_v2_sdk::prelude::*`, `alloy_primitives::{U256, address}`, and `hex` crate for encoding.

```rust
use uniswap_v2_sdk::prelude::*;
use alloy_primitives::{U256, address};

// Setup trade (same as previous examples)
let token0 = Token::new(1, address!("0000000000000000000000000000000000000001"), 18, Some("TK0".to_string()), None, 0, 0);
let token1 = Token::new(1, address!("0000000000000000000000000000000000000002"), 18, Some("TK1".to_string()), None, 0, 0);

let pair = Pair::new(
    CurrencyAmount::from_raw_amount(token0.clone(), 1000).unwrap(),
    CurrencyAmount::from_raw_amount(token1.clone(), 1000).unwrap(),
).unwrap();

let route = Route::new(vec![pair], token0.clone(), token1.clone());
let input_amount = CurrencyAmount::from_raw_amount(token0.clone(), 100).unwrap();
let trade = Trade::exact_in(route, input_amount).unwrap();

// Configure trade options
let trade_options = TradeOptions {
    allowed_slippage: Percent::new(5, 1000), // 0.5% slippage
    deadline: U256::from(1700000000), // Unix timestamp
    recipient: address!("0000000000000000000000000000000000000004"),
    fee_on_transfer: None,
};

// Generate method parameters
let method_params = swap_call_parameters(&trade, trade_options).unwrap();

println!("Calldata: 0x{}", hex::encode(&method_params.calldata));
println!("Value (wei): {}", method_params.value);

// Use these parameters to send transaction to Uniswap V2 Router
// transaction = {
//   to: UNISWAP_V2_ROUTER_ADDRESS,
//   data: method_params.calldata,
//   value: method_params.value,
// }

```

--------------------------------

### Calculate Output Amount for Swap in Rust

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

Calculates the expected output amount of tokens for a given input amount in a Uniswap V2 liquidity pool. This function considers the current reserves and trading fees to provide an accurate output estimation. It returns the calculated output amount and the new state of the pair after the hypothetical trade.

```rust
use uniswap_v2_sdk::prelude::*;

// Create a pair with reserves
let token0 = Token::new(1, address!("0000000000000000000000000000000000000001"), 18, None, None, 0, 0);
let token1 = Token::new(1, address!("0000000000000000000000000000000000000002"), 18, None, None, 0, 0);

let pair = Pair::new(
    CurrencyAmount::from_raw_amount(token0.clone(), 10000).unwrap(),
    CurrencyAmount::from_raw_amount(token1.clone(), 10000).unwrap(),
).unwrap();

// Calculate output for input of 100 token0
let input_amount = CurrencyAmount::from_raw_amount(token0.clone(), 100).unwrap();
let (output_amount, new_pair) = pair.get_output_amount(&input_amount, false).unwrap();

println!("Input: {} {}", input_amount.to_exact(), input_amount.currency.symbol().unwrap());
println!("Output: {} {}", output_amount.to_exact(), output_amount.currency.symbol().unwrap());
println!("New reserves: {} / {}", new_pair.reserve0().to_exact(), new_pair.reserve1().to_exact());
```

--------------------------------

### Add Dependency to Cargo.toml

Source: https://github.com/shuhuiluo/uniswap-v2-sdk-rs/blob/main/README.md

This snippet shows how to add the 'uniswap-v2-sdk' crate to your project's dependencies in the Cargo.toml file. Ensure you are using a compatible Rust version (MSRV 1.85 or later).

```toml
[dependencies]
uniswap-v2-sdk = "2.0"

```

--------------------------------

### Calculate Liquidity Tokens Minted (Rust)

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

This code calculates the number of liquidity tokens minted when adding liquidity to a pool using the Uniswap v2 SDK in Rust. It takes existing reserves and amounts being added to calculate the resulting liquidity.

```rust
use uniswap_v2_sdk::prelude::*;

let token0 = Token::new(1, address!("0000000000000000000000000000000000000001"), 18, Some("TK0".to_string()), None, 0, 0);
let token1 = Token::new(1, address!("0000000000000000000000000000000000000002"), 18, Some("TK1".to_string()), None, 0, 0);

// Existing pair with reserves
let pair = Pair::new(
    CurrencyAmount::from_raw_amount(token0.clone(), 10000).unwrap(),
    CurrencyAmount::from_raw_amount(token1.clone(), 10000).unwrap(),
).unwrap();

// Current total supply of liquidity tokens
let total_supply = CurrencyAmount::from_raw_amount(pair.liquidity_token.clone(), 10000).unwrap();

// Amounts being added
let token0_amount = CurrencyAmount::from_raw_amount(token0.clone(), 1000).unwrap();
let token1_amount = CurrencyAmount::from_raw_amount(token1.clone(), 1000).unwrap();

// Calculate liquidity tokens minted
let liquidity_minted = pair.get_liquidity_minted(
    &total_supply,
    &token0_amount,
    &token1_amount,
).unwrap();

println!("Adding {} {} and {} {}",
    token0_amount.to_exact(), token0.symbol().unwrap(),
    token1_amount.to_exact(), token1.symbol().unwrap()
);
println!("Liquidity tokens minted: {}", liquidity_minted.to_exact());

```

--------------------------------

### Compute Uniswap V2 Pair Address in Rust

Source: https://context7.com/shuhuiluo/uniswap-v2-sdk-rs/llms.txt

Calculates the deterministic address of a Uniswap V2 pair contract using the `compute_pair_address` function. This function takes the factory address and the addresses of the two tokens as input, ensuring predictable pair address generation.

```rust
use uniswap_v2_sdk::prelude::*;
use alloy_primitives::address;

let factory = address!("5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f");
let token_a = address!("A0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48");
let token_b = address!("6B175474E89094C44Da98b954EedeAC495271d0F");

// Compute the pair address
let pair_address = compute_pair_address(factory, token_a, token_b);

println!("Computed pair address: {:?}", pair_address);
// Output: 0xAE461cA67B15dc8dc81CE7615e0320dA1A9aB8D5
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.