### Install Uniswap SDK via Setuptools

Source: https://github.com/apeworx/uniswap-sdk/blob/main/README.md

Installs the most up-to-date version of the Uniswap SDK by cloning the repository and using setuptools. This method is suitable for developers who need the latest features.

```bash
git clone https://github.com/SilverBackLtd/uniswap-sdk.git
cd uniswap-sdk
python3 setup.py install
```

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

### Integrate Uniswap SDK with Silverback Bot (Python)

Source: https://github.com/apeworx/uniswap-sdk/blob/main/README.md

Shows how to integrate the Uniswap SDK with a Silverback Bot for real-time processing and reduced overhead. This example demonstrates installing the SDK into the bot and using cron jobs for background index updates, leading to faster price lookups.

```python
from ape_tokens import tokens
from silverback import SilverbackBot
from uniswap_sdk import Uniswap

bot = SilverbackBot()
uni = Uniswap()
uni.install(bot)

@bot.cron("* * * * *")
async def weth_price(t):
    return uni.price("WETH", "USDC")
```

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

### Install Uniswap SDK via pip

Source: https://github.com/apeworx/uniswap-sdk/blob/main/README.md

Installs the latest release of the Uniswap SDK using pip, the Python package installer. Ensure you have Python 3.10 or greater installed.

```bash
pip install uniswap_sdk
```

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

### Uniswap SDK Scripting Examples (Python)

Source: https://github.com/apeworx/uniswap-sdk/blob/main/README.md

Demonstrates basic scripting tasks using the Uniswap SDK in Python. This includes initializing the SDK, indexing tokens, fetching real-time prices, and performing token swaps with various parameters like slippage and deadline.

```python
from ape_tokens import tokens
from uniswap_sdk import Uniswap

uni = Uniswap(use_v3=False)
list(uni.index(tokens=tokens))
uni.price("UNI", "USDC")

usdc = tokens["USDC"]
tx = uni.swap(
    "UNI",
    usdc,
    amount_in="12 UNI",
    slippage=0.3,
    deadline=timedelta(minutes=2),
    sender=trader,
)
```

```python
uni.swap(want="UNI", sender=trader, value="1 ether")
uni.swap(want="UNI", amount_out="10 UNI", sender=trader, value="1 ether")
uni.swap(have="UNI", amount_in="10 UNI", native_out=True, ...)
```

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

### Get Token Price with Uniswap SDK

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Shows how to query liquidity-weighted prices for a token pair using the Uniswap SDK. It covers fetching the price of one token in terms of another and applying a minimum liquidity filter for more reliable price data.

```python
from uniswap_sdk import Uniswap
from ape_tokens import tokens
from decimal import Decimal

uni = Uniswap()
list(uni.index(tokens=[tokens["UNI"], tokens["USDC"], tokens["WETH"]]))

# Get price of UNI in terms of USDC
price = uni.price("UNI", "USDC")
print(f"UNI price: {price} USDC")  # Returns Decimal("4.75")

# Get price with minimum liquidity filter
price_filtered = uni.price(
    base=tokens["WETH"],
    quote=tokens["USDC"],
    min_liquidity=Decimal(10)  # Require at least 10 tokens liquidity
)
print(f"WETH price: {price_filtered} USDC")
```

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

### Define a Custom Uniswap Solver (Python)

Source: https://github.com/apeworx/uniswap-sdk/blob/main/README.md

Provides an interface definition and an example class for creating a custom solver for the Uniswap SDK. Custom solvers allow users to optimize swap actions by defining their own logic for routing and amount calculations, overriding the default solver.

```python
from uniswap_sdk import Order
Route = tuple[PairType, ...]
Solution = dict[Route, Decimal]
SolverType = Callable[[Order, Iterable[Route]], Solution]

class Solver:
    def __call__(self, order: Order, routes: Iterable[Route]) -> Solution:
        # This function must match `SolverType` to work
        pass

my_solver = Solver(...)

uni = Uniswap(use_solver=my_solver)
uni.solve(...)
```

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

### Initialize Uniswap SDK

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Demonstrates basic initialization of the Uniswap SDK, allowing selection of V2 and V3 protocols and setting a default slippage tolerance. It also shows how to index token pairs for faster price queries, which can be time-consuming.

```python
from uniswap_sdk import Uniswap
from ape_tokens import tokens

# Initialize with both V2 and V3 (default)
uni = Uniswap()

# Initialize with only V2
uni_v2_only = Uniswap(use_v2=True, use_v3=False)

# Initialize with custom default slippage (0.5% default)
uni_custom = Uniswap(default_slippage=0.01)  # 1% slippage

# Index pairs for faster price queries (takes significant time)
list(uni.index(tokens=tokens))
```

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

### Uniswap SDK CLI Usage

Source: https://github.com/apeworx/uniswap-sdk/blob/main/README.md

Illustrates the usage of the `uni` command-line interface (CLI) that comes with the SDK. The CLI provides a convenient way to perform common tasks like finding prices and executing swaps directly from the terminal.

```bash
uni --help
```

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

### Inspect Solution

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Iterates through a solution dictionary to print the ratio and description of each route. This is useful for visualizing the output of a routing algorithm.

```python
for route, ratio in solution.items():
    route_desc = " -> ".join(p.describe() for p in route)
    print(f"{ratio * 100:.2f}% via {route_desc}")
```

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

### Create UniversalRouter Execution Plan

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Builds a custom execution plan for the UniversalRouter, enabling multiple commands like wrapping ETH and executing V3 swaps. It utilizes the Plan and UniversalRouter classes, requiring Ape accounts for sender addresses. The output is a transaction receipt.

```python
from uniswap_sdk import Plan, UniversalRouter
from uniswap_sdk.universal_router import Constants
from ape import accounts

router = UniversalRouter()
me = accounts.load("my-account")

# Build plan using builder pattern
plan = (
    Plan()
    .wrap_eth(Constants.ADDRESS_THIS, int(1e18))  # Wrap 1 ETH
    .v3_swap_exact_in(
        recipient=me.address,
        amountIn=int(1e18),
        amountOutMin=int(1000e6),  # Expect at least 1000 USDC
        path=(
            "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",  # WETH
            3000,  # 0.3% fee
            "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"   # USDC
        ),
        payerIsUser=False
    )
)

# Execute plan
receipt = router.execute(plan, sender=me, value="1 ether")
print(f"Executed: {receipt.txn_hash}")
```

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

### Execute Token Swap with Uniswap SDK

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Details how to perform token swaps using the Uniswap SDK, including support for both exact input and exact output amounts. It allows specifying slippage tolerance and a transaction deadline to protect against price fluctuations.

```python
from uniswap_sdk import Uniswap
from ape_tokens import tokens
from ape import accounts
from datetime import timedelta

uni = Uniswap()
trader = accounts.load("my-account")

# Swap exact input amount
tx = uni.swap(
    have="UNI",
    want=tokens["USDC"],
    amount_in="12 UNI",
    slippage=0.005,  # 0.5% slippage
    deadline=timedelta(minutes=2),
    sender=trader
)
print(f"Swap executed: {tx.txn_hash}")

# Swap for exact output amount
tx = uni.swap(
    have="UNI",
    want="USDC",
    amount_out="100 USDC",
    slippage=0.01,  # 1% slippage
    sender=trader
)
```

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

### Swap with Native ETH using Uniswap SDK

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Illustrates how to perform swaps involving native Ether (ETH) directly, eliminating the need for manual wrapping and unwrapping. This includes buying tokens with ETH and selling tokens for native ETH, specifying amounts as exact input or output.

```python
from uniswap_sdk import Uniswap
from ape import accounts

uni = Uniswap()
trader = accounts.load("my-account")

# Buy UNI with ETH (exact input)
tx = uni.swap(
    want="UNI",
    sender=trader,
    value="1 ether"
)

# Buy UNI with ETH (exact output)
tx = uni.swap(
    want="UNI",
    amount_out="10 UNI",
    sender=trader,
    value="1 ether"  # Acts as max_amount_in
)

# Sell UNI for native ETH
tx = uni.swap(
    have="UNI",
    amount_in="10 UNI",
    native_out=True,
    sender=trader
)
```

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

### Create and Solve Swap Order

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Creates a swap order with specified input/output tokens, amount, and slippage tolerance, then solves for the optimal route using indexed pools. It returns a description of the order and the optimal solution.

```python
from uniswap_sdk import Uniswap
from ape_tokens import tokens
from decimal import Decimal

uni = Uniswap()
list(uni.index(tokens=[tokens["UNI"], tokens["USDC"], tokens["WETH"]]))

# Create exact input order
order = uni.create_order(
    have="UNI",
    want="USDC",
    amount_in=Decimal("10"),  # 10 UNI
    slippage=0.005  # 0.5%
)
print(order.describe())

# Solve for optimal routes
solution = uni.solve(order=order)
```

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

### Build Arbitrage Bot using Silverback Integration

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Creates a production-ready arbitrage trading bot by integrating Uniswap SDK with Silverback Bot. It loads token inventory, monitors price differences, and executes trades when arbitrage opportunities exceed a defined threshold.

```python
from decimal import Decimal
from ape_tokens import tokens
from silverback import SilverbackBot
from uniswap_sdk import Uniswap
from ape.exceptions import ContractLogicError

bot = SilverbackBot(signer_required=True)
uni = Uniswap()

TOKENA = tokens["USDT"]
TOKENB = tokens["USDC"]
REFERENCE_PRICE = Decimal("1.0")
ARB_THRESHOLD = Decimal("0.0025")  # 0.25%

uni.install(bot, tokens=[TOKENA, TOKENB])

@bot.on_startup()
async def load_inventory(_):
    bot.state.inventory = {
        TOKENA: Decimal(TOKENA.balanceOf(bot.signer)) / Decimal(10 ** TOKENA.decimals()),
        TOKENB: Decimal(TOKENB.balanceOf(bot.signer)) / Decimal(10 ** TOKENB.decimals())
    }
    return bot.state.inventory

@bot.cron("*/5 * * * *")  # Every 5 minutes
async def price(_):
    return uni.price(TOKENA, TOKENB)

@bot.on_metric("price")
def price_delta(price: Decimal):
    return price - REFERENCE_PRICE

@bot.on_metric("price_delta", lt=-ARB_THRESHOLD)
def buy_opportunity(_):
    if bot.state.inventory[TOKENB] > 0:
        try:
            uni.swap(
                have=TOKENB,
                want=TOKENA,
                amount_in=bot.state.inventory[TOKENB],
                sender=bot.signer
            )
        except ContractLogicError:
            pass  # Trade failed, skip
```

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

### Index V2 Factory Pairs with Uniswap SDK

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Explains how to index all trading pairs from a Uniswap V2 factory contract, which significantly speeds up routing. It also shows how to index only specific token pairs or retrieve individual pair information.

```python
from uniswap_sdk import v2
from ape_tokens import tokens

factory = v2.Factory()

# Index all pairs (very slow, can take hours)
all_pairs = list(factory.index())
print(f"Indexed {len(factory)} pairs")

# Index only specific token pairs
selected_pairs = list(factory.index(tokens=[
    tokens["UNI"],
    tokens["USDC"],
    tokens["WETH"]
]))

# Get specific pair
pair = factory.get_pair("YFI", "USDC")
if pair:
    print(f"Pair address: {pair.address}")
    print(f"YFI price: {pair.price('YFI')} USDC")
    print(f"YFI liquidity: {pair.liquidity['YFI']}")
```

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

### Find Optimal Swap Routes

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Finds all possible swap routes between token pairs, supporting multiple hops and different Uniswap versions (V2/V3). It indexes tokens and then uses `find_routes` to identify potential paths. The output is a list of route descriptions.

```python
from uniswap_sdk import Uniswap
from ape_tokens import tokens

uni = Uniswap()
list(uni.index(tokens=[
    tokens["UNI"],
    tokens["USDC"],
    tokens["WETH"],
    tokens["DAI"]
]))

# Find all routes between UNI and USDC (up to depth 2)
routes = list(uni.find_routes(
    have="UNI",
    want="USDC",
))

for route in routes:
    print(f"Route: {' -> '.join(p.describe() for p in route)}")

# Find longer routes (more hops)
from uniswap_sdk import v2
factory = v2.Factory()
long_routes = list(factory.find_routes(
    start_token="UNI",
    end_token="DAI",
    depth=3  # Allow up to 3 hops
))
```

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

### Query V2 Pair Information with Uniswap SDK

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Demonstrates how to query detailed information from Uniswap V2 trading pools, including token reserves, current prices, and liquidity data. It also covers calculating the maximum swap size for a given slippage and the price impact of a specific trade.

```python
from uniswap_sdk import v2
from decimal import Decimal

# Initialize pair directly by address
pair = v2.Pair(address="0xdE37cD310c70e7Fa9d7eD3261515B107D5Fe1F2d")

# Get reserves for a token
yfi_liquidity = pair.liquidity["YFI"]
print(f"YFI reserves: {yfi_liquidity}")

# Get price
yfi_price = pair.price("YFI")
print(f"Price: {yfi_price} {pair.other('YFI').symbol()}/YFI")

# Calculate depth (max swap size for given slippage)
max_swap = pair.depth("YFI", slippage=Decimal("0.05"))  # 5% slippage
print(f"Max swap before 5% slippage: {max_swap} YFI")

# Calculate reflexivity (price impact for given swap size)
impact = pair.reflexivity("YFI", size=Decimal("1.0"))
print(f"Price impact for 1 YFI swap: {impact * 100}%")
```

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

### Sign Permit2 for Gasless Approvals

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Creates Permit2 signatures for gasless token approvals, enabling the UniversalRouter to spend tokens without direct user transaction confirmation. It requires Ape accounts, token definitions, and the UniversalRouter address. The output is a signed permit command.

```python
from uniswap_sdk import Permit2
from uniswap_sdk.permit2 import PermitDetails
from ape import accounts
from ape_tokens import tokens
from datetime import datetime, timedelta, timezone

permit2 = Permit2()
signer = accounts.load("my-account")
uni_router_address = "0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD"

# Create permit details
expiration = datetime.now(timezone.utc) + timedelta(hours=1)
permit = PermitDetails(
    token=tokens["UNI"].address,
    amount=int(100e18),  # 100 UNI
    expiration=int(expiration.timestamp()),
    nonce=permit2.get_nonce(signer, tokens["UNI"], uni_router_address)
)

# Sign permit
permit_command = permit2.sign_permit(
    spender=uni_router_address,
    permit=permit,
    signer=signer
)

# Use in swap
from uniswap_sdk import Uniswap
uni = Uniswap()
# Permit command will be included automatically if allowance exists
```

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

### Integrate with Silverback Bot for Real-time Event Processing

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Integrates the Uniswap SDK with Silverback Bot for real-time event processing and automated index updates. This allows for faster price queries using cached data and reacting to price changes.

```python
from ape_tokens import tokens
from silverback import SilverbackBot
from uniswap_sdk import Uniswap

bot = SilverbackBot()
uni = Uniswap()

# Install replaces manual indexing - tracks events in background
uni.install(bot, tokens=[
    tokens["WETH"],
    tokens["USDC"],
    tokens["UNI"]
])

# Price queries use cached data (much faster)
@bot.cron("* * * * *")  # Every minute
async def check_price(timestamp):
    price = uni.price("WETH", "USDC")
    return {"weth_usdc_price": float(price)}

# React to price changes
@bot.on_metric("weth_usdc_price")
async def on_price_change(price):
    if price > 2000:
        print(f"WETH price is high: {price}")
```

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

### Implement Custom Solver for Optimized Route Finding

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Implements a custom solver for the Uniswap SDK that prioritizes routes with the lowest gas cost. This involves sorting available routes by their length (number of hops) and selecting the shortest one for execution.

```python
from decimal import Decimal
from typing import Iterable
from uniswap_sdk import Uniswap, Order
from uniswap_sdk.types import Route
from uniswap_sdk.solver import Solution

class CustomSolver:
    def __call__(self, order: Order, routes: Iterable[Route]) -> Solution:
        """Custom solver that prioritizes lowest gas cost routes"""
        solution = {}

        # Sort routes by length (fewer hops = less gas)
        sorted_routes = sorted(routes, key=len)

        if sorted_routes:
            # Use only the shortest route
            best_route = tuple(sorted_routes[0])
            solution[best_route] = Decimal("1.0")  # 100% of flow

        return solution

# Use custom solver
my_solver = CustomSolver()
uni = Uniswap(use_solver=my_solver)

# Swaps will now use custom solver logic
uni.swap(
    have="UNI",
    want="USDC",
    amount_in="10 UNI",
    sender=trader
)
```

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

### Index V3 Factory Pools

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Indexes Uniswap V3 pools, allowing for the retrieval of all pools or pools for specific token pairs across different fee tiers. It utilizes the v3.Factory class and requires access to token definitions.

```python
from uniswap_sdk import v3
from ape_tokens import tokens
from uniswap_sdk.types import Fee

factory = v3.Factory()

# Index all pools from PoolCreated events
all_pools = list(factory.index())

# Index specific tokens across all fee tiers
pools = list(factory.index(tokens=[
    tokens["USDC"],
    tokens["WETH"],
    tokens["UNI"]
]))

# Get specific pool with fee tier
pool = factory.get_pool("USDC", "WETH", fee=Fee.MEDIUM)  # 0.3% fee
if pool:
    print(f"Pool: {pool.token0.symbol()}/{pool.token1.symbol()}")
    print(f"Fee: {pool.fee.to_decimal() * 100}%")
    print(f"Current price: {pool.price('USDC')}")
```

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

### Approve Token for Permit2

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Grants the Permit2 contract approval to spend tokens on behalf of a user, either for an unlimited amount or a specific allowance. It uses the Uniswap class and requires Ape accounts and token definitions. The output is a transaction receipt.

```python
from uniswap_sdk import Uniswap
from ape import accounts
from ape_tokens import tokens

uni = Uniswap()
trader = accounts.load("my-account")

# Approve unlimited amount (default)
receipt = uni.approve_permit2(
    token=tokens["UNI"],
    sender=trader
)

# Approve specific amount
receipt = uni.approve_permit2(
    token="USDC",
    allowance="1000 USDC",
    sender=trader
)

print(f"Approval transaction: {receipt.txn_hash}")
```

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

### Decode UniversalRouter Transaction Calldata

Source: https://context7.com/apeworx/uniswap-sdk/llms.txt

Decodes and inspects transaction calldata for the UniversalRouter, allowing examination of executed commands and their arguments. It requires a transaction hash and returns the decoded plan object.

```python
from uniswap_sdk import UniversalRouter

router = UniversalRouter()

# Decode from transaction hash
txn_hash = "0x1234..."
plan = router.decode_plan_from_transaction(txn_hash)

# Inspect commands in plan
for cmd in plan.commands:
    print(f"Command: {cmd.__class__.__name__}")
    print(f"  Args: {cmd.args}")

# Access specific command attributes
if hasattr(plan.commands[0], 'amountIn'):
    print(f"Amount In: {plan.commands[0].amountIn}")
```

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