feat: add addLiquidity and Permit2 batch support

README.md

@@ -1,205 +1,211 @@
 # uniswap-dev-kit
-
 [![CI](https://github.com/BootNodeDev/uni-dev-kit/actions/workflows/ci.yml/badge.svg)](https://github.com/BootNodeDev/uni-dev-kit/actions/workflows/ci.yml)
 [![Release](https://github.com/BootNodeDev/uni-dev-kit/actions/workflows/release.yml/badge.svg)](https://github.com/BootNodeDev/uni-dev-kit/actions/workflows/release.yml)
 [![Docs](https://img.shields.io/badge/docs-typedoc-blue)](https://bootnodedev.github.io/uni-dev-kit)
 
 > Modern TypeScript SDK for integrating Uniswap V4 into your dapp.  
 > **Early version:** API may change rapidly.
 
+A developer-friendly library for interacting with Uniswap V4 contracts. This library provides a simple and flexible interface for common operations like adding liquidity, swapping tokens, and managing positions.
+
 ## Features
 
-- 🚀 Full TypeScript support
-- 🔄 Multi-chain support out of the box
-- 📦 Zero dependencies (except peer deps)
-- 🔍 Comprehensive error handling
-- 🧪 Fully tested
-- 📚 Well documented
+- 🚀 Simple and intuitive API
+- 🔄 Support for all major Uniswap V4 operations
+- 💰 Native token support
+- 🔒 Permit2 integration for gasless approvals
+- 📊 Flexible liquidity management
+- 🔍 Built-in quote simulation
+- 🛠 TypeScript support
 
-## Install
+## Installation
 
 ```bash
-pnpm install uniswap-dev-kit
-# or
 npm install uniswap-dev-kit
+# or
+yarn add uniswap-dev-kit
 ```
 
 ## Quick Start
 
-### 1. Configure and create SDK instances
-
 ```ts
-import { UniDevKitV4 } from "uniswap-dev-kit";
+import { UniDevKitV4 } from 'uniswap-dev-kit';
 
-// Create instance for Ethereum mainnet
-const ethInstance = new UniDevKitV4({
+const uniDevKit = new UniDevKitV4({
   chainId: 1,
-  rpcUrl: "https://eth.llamarpc.com",
   contracts: {
     poolManager: "0x...",
-    positionDescriptor: "0x...",
     positionManager: "0x...",
+    positionDescriptor: "0x...",
     quoter: "0x...",
     stateView: "0x...",
-    universalRouter: "0x...",
-    permit2: "0x..."
+    universalRouter: "0x..."
   }
 });
 
-// Create instance for another chain (e.g., Base)
-const baseInstance = new UniDevKitV4({
-  chainId: 8453,
-  rpcUrl: "https://mainnet.base.org",
-  contracts: {
-    // Base Uniswap V4 contract addresses...
-  }
+const pool = await uniDevKit.getPool({
+  tokens: ["0xTokenA", "0xTokenB"],
+  fee: 3000
+});
+
+const quote = await uniDevKit.getQuote({
+  pool,
+  amountIn: "1000000000000000000"
 });
 ```
 
-### 2. Get a quote
+## Documentation
+Full API documentation with TypeDoc: [https://bootnodedev.github.io/uni-dev-kit](https://bootnodedev.github.io/uni-dev-kit)
 
+## API Reference
+
+### Index
+- [uniswap-dev-kit](#uniswap-dev-kit)
+  - [Features](#features)
+  - [Installation](#installation)
+  - [Quick Start](#quick-start)
+  - [Documentation](#documentation)
+  - [API Reference](#api-reference)
+    - [Index](#index)
+    - [`getPool`](#getpool)
+    - [`getQuote`](#getquote)
+    - [`getTokens`](#gettokens)
+    - [`getPosition`](#getposition)
+    - [`getPoolKeyFromPoolId`](#getpoolkeyfrompoolid)
+    - [`buildSwapCallData`](#buildswapcalldata)
+    - [`buildAddLiquidityCallData`](#buildaddliquiditycalldata)
+    - [`preparePermit2BatchCallData`](#preparepermit2batchcalldata)
+  - [Useful Links](#useful-links)
+  - [Development](#development)
+    - [Scripts](#scripts)
+  - [Contributing](#contributing)
+  - [Release](#release)
+  - [License](#license)
+
+### `getPool`
+Retrieve a pool object from two tokens and a fee tier.
 ```ts
-import { parseEther } from "viem";
-
-const quote = await ethInstance.getQuote({
-  tokens: [
-    "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", // USDC
-    "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2", // WETH
-  ],
-  feeTier: 3000,
-  amountIn: parseEther("1"),
-  zeroForOne: true
+const pool = await uniDevKit.getPool({
+  tokens: [tokenA, tokenB],
+  fee: 3000
 });
-console.log(quote.amountOut);
 ```
 
-### 3. Get a pool
-
+### `getQuote`
+Simulate a swap to get `amountOut` and `sqrtPriceLimitX96`.
 ```ts
-const pool = await ethInstance.getPool({
-  tokens: [
-    "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
-    "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
-  ],
-  feeTier: 3000
+const quote = await uniDevKit.getQuote({
+  pool,
+  amountIn: "1000000000000000000"
 });
-console.log(pool.liquidity.toString());
 ```
 
-### 4. Get a position
-
+### `getTokens`
+Retrieve token metadata.
 ```ts
-const position = await ethInstance.getPosition({
-  tokenId: "123"
-});
-console.log({
-  token0: position.token0.symbol,
-  token1: position.token1.symbol,
-  liquidity: position.position.liquidity.toString()
+const tokens = await uniDevKit.getTokens({
+  addresses: ["0x...", "0x..."]
 });
 ```
 
-## Advanced Usage
-
-### Error Handling
+### `getPosition`
+Get details about a Uniswap V4 LP position.
+```ts
+const position = await uniDevKit.getPosition({
+  tokenId: 123
+});
+```
 
-All SDK functions include comprehensive error handling:
+### `getPoolKeyFromPoolId`
+Retrieve the `PoolKey` object for a given pool ID.
+```ts
+const poolKey = await uniDevKit.getPoolKeyFromPoolId({
+  poolId: "0x..."
+});
+```
 
+### `buildSwapCallData`
+Construct calldata and value for a Universal Router swap.
 ```ts
-try {
-  const quote = await ethInstance.getQuote({
-    tokens: [token0, token1],
-    feeTier: 3000,
-    amountIn: parseEther("1"),
-    zeroForOne: true
-  });
-} catch (error) {
-  // Handle specific error types
-  if (error.message.includes("insufficient liquidity")) {
-    // Handle liquidity error
-  } else if (error.message.includes("invalid pool")) {
-    // Handle pool error
-  }
-}
+const { calldata, value } = await uniDevKit.buildSwapCallData({
+  tokenIn,
+  tokenOut,
+  amountIn: "1000000000000000000",
+  recipient,
+  slippageBips: 50
+});
 ```
 
-### Using with React
+### `buildAddLiquidityCallData`
+Build calldata to add liquidity to a pool.
+```ts
+// Without permit
+const { calldata, value } = await uniDevKit.buildAddLiquidityCallData({
+  pool,
+  amount0: "100000000",
+  amount1: "50000000000000000",
+  recipient: "0x...",
+  slippageTolerance: 50
+});
 
-You can use the SDK with React Query for data fetching:
+// With Permit2 batch approval
+const permitData = await uniDevKit.preparePermit2BatchData({
+  tokens: [pool.token0.address, pool.token1.address],
+  spender: uniDevKit.getContractAddress('positionManager'),
+  owner: userAddress
+});
 
-```tsx
-import { useQuery } from '@tanstack/react-query';
-import { UniDevKitV4 } from 'uniswap-dev-kit';
+const signature = await signer.signTypedData(
+  permitData.toSign.domain,
+  permitData.toSign.types,
+  permitData.toSign.values
+);
 
-// Create instance once
-const sdk = new UniDevKitV4({
-  chainId: 1,
-  rpcUrl: "https://eth.llamarpc.com",
-  contracts: {
-    // ... contract addresses
-  }
+const permitWithSignature = permitData.buildPermit2BatchDataWithSignature(signature);
+
+const { calldata, value } = await uniDevKit.buildAddLiquidityCallData({
+  pool,
+  amount0: parseUnits("100", 6),
+  recipient: "0x...",
+  permit2BatchSignature: permitWithSignature
 });
 
-// Simple hook for quotes
-function useQuote() {
-  return useQuery({
-    queryKey: ['quote'],
-    queryFn: () => sdk.getQuote({
-      tokens: [
-        "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
-        "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
-      ],
-      feeTier: 3000,
-      amountIn: parseEther("1"),
-      zeroForOne: true
-    })
-  });
-}
+const tx = await sendTransaction({
+  to: uniDevKit.getContractAddress('positionManager'),
+  data: calldata,
+  value
+});
 ```
 
----
-
-## API Reference
-
-See [full TypeDoc documentation](https://bootnodedev.github.io/uni-dev-kit) for all methods, types, and advanced usage.
+### `preparePermit2BatchCallData`
+Construct a Permit2 batch approval for gasless interactions.
+```ts
+const permitData = await uniDevKit.preparePermit2BatchCallData({
+  tokens: [tokenA.address, tokenB.address],
+  spender: uniDevKit.getContractAddress('positionManager'),
+  owner: userAddress
+});
+```
 
----
+## Useful Links
+- [Uniswap V4 Docs](https://docs.uniswap.org/contracts/v4/overview)
 
 ## Development
 
 ### Scripts
-
 - `pnpm build` — Build the library
 - `pnpm test` — Run all tests
 - `pnpm lint` — Lint code with Biome
 - `pnpm format` — Format code with Biome
 - `pnpm docs` — Generate API docs with TypeDoc
 
-### Contributing
+## Contributing
 
 See [CONTRIBUTING.md](./CONTRIBUTING.md) for guidelines.
 
-### Release
+## Release
 
 - Releases are automated with [semantic-release](https://semantic-release.gitbook.io/semantic-release/).
-- Versioning: [semver](https://semver.org/)
-
----
-
-## FAQ
-
-- **Does it work in Node and browser?**  
-  Yes, works in both environments.
-- **Can I use my own ABIs?**  
-  Yes, but Uniswap V4 ABIs are included.
-
----
 
 ## License
-
 MIT
-
----
-
-> Feedback, issues, and PRs welcome.  
-> [API Docs](https://bootnodedev.github.io/uni-dev-kit) • [Open an Issue](https://github.com/BootNodeDev/uni-dev-kit/issues) 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "uniswap-dev-kit",
-  "version": "1.0.8",
+  "version": "1.0.9",
   "description": "A modern TypeScript library for integrating Uniswap into your dapp.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",