daffadevhosting/pancakeswap-swaptoken

PancakeSwap Swap interface v.1

🥞 Pancake Swap Exchange

PancakeSwap is an automated market maker (“AMM”) that allows two tokens to be exchanged on the Binance Smart Chain (BSC). It is fast, cheap, and allows anyone to participate.

Preparing source

• Clone pancake-swap-core

git clone git@github.com:pancakeswap/pancake-swap-core.git
cd pancake-swap-core
git checkout -b factory 3b214306770e86bc3a64e67c2b5bdb566b4e94a7
yarn install
yarn compile

• Clone pancake-swap-periphery

git clone git@github.com:pancakeswap/pancake-swap-periphery.git
cd pancake-swap-periphery
git checkout -b router d769a6d136b74fde82502ec2f9334acc1afc0732
yarn install
yarn add @uniswap/v2-core@"file:../pancake-swap-core"
yarn compile

• Clone pancake-swap-interface-v1

git clone git@github.com:pancakeswap/pancake-swap-interface-v1.git
cd pancake-swap-interface-v1
git checkout -b v1 0257017f2daaae2f67c24ded70b5829f74a01b3c
yarn install

Setup

Install contract merger: https://www.npmjs.com/package/sol-merger

npm install sol-merger -g

Prepare PancakeFactory and PancakeRouter

sol-merger pancake-swap-core/contracts/PancakeFactory.sol ./build
sol-merger pancake-swap-core/contracts/PancakePair.sol ./build
sol-merger pancake-swap-periphery/contracts/PancakeRouter01.sol ./build
sol-merger pancake-swap-periphery/contracts/PancakeRouter.sol ./build

Deploy PancakeFactory and PancakeRouter

• Access: https://remix.ethereum.org/#optimize=false&runs=200&evmVersion=null&version=soljson-v0.5.16+commit.9c3226ce.js

Deploy WBNB

• New File: WBNB.sol => Copy source from https://gist.github.com/daffadevhosting/4daea7c551b71d07f8658f9e8e89e8c6
• Compiler tab => Select compiler: v0.8.3+commit.8d00100c
• Deploy tab => Select WBNB -> Deploy

Deploy PancakeFactory

• New File: PancakeFactory.sol => Copy source from ./build/PancakeFactory.sol
• Compiler tab => Select compiler: v0.5.16+commit.9c3226ce
• Deploy tab => Select PancakeFactory -> Fill your address as feeToSetter in constructor -> Deploy

Deploy PancakeRouter01

• New File: PancakeRouter01.sol => Copy source from ./build/PancakeRouter01.sol
• Expand PancakeFactory deployed above -> Read INIT_CODE_PAIR_HASH -> Copy this hash without prefix 0x. Ex: bb600ba95884f2c2837114fd2f157d00137e0b65b0fe5226523d720e4a4ce539
• Edit PancakeRouter01: Find PancakeLibrary -> pairFor function => Replace new hex by INIT_CODE_PAIR_HASH above. Ex: hex'd0d4c4cd0848c93cb4fd1f498d7013ee6bfb25783ea21593d5834f5d250ece66' -> hex'0xced7c507bf75a9c4a42a9c14d582db9f48b2de7a90ccc86d338a41f541fe4f53'
• Compiler tab => Select compiler: v0.6.6+commit.6c089d02
• Deploy tab => Select PancakeRouter01 -> Fill PancakeFactory address and WBNB address as constructor params -> Deploy

Deploy PancakeRouter (Main Router)

• New File: PancakeRouter.sol => Copy source from ./build/PancakeRouter.sol
• Expand PancakeFactory deployed above -> Read INIT_CODE_PAIR_HASH -> Copy this hash without prefix 0x. Ex: 0xced7c507bf75a9c4a42a9c14d582db9f48b2de7a90ccc86d338a41f541fe4f53
• Edit PancakeRouter: Find PancakeLibrary -> pairFor function => Replace new hex by INIT_CODE_PAIR_HASH above. Ex: hex'd0d4c4cd0848c93cb4fd1f498d7013ee6bfb25783ea21593d5834f5d250ece66' -> hex'0xced7c507bf75a9c4a42a9c14d582db9f48b2de7a90ccc86d338a41f541fe4f53'
• Compiler tab => Select compiler: v0.6.6+commit.6c089d02; Check on Enable optimization: 200 to avoid Contract code size limit issue
• Deploy tab => Select PancakeRouter -> Fill PancakeFactory address and WBNB address as constructor params -> Deploy

Setup Frontend

• Update .env

cd pancake-swap-interface-v1
cp .env.development .env

• Update PancakeRouter address to ROUTER_ADDRESS at src/constants/index.ts

• Update support chain to testnet at src/connectors/index.ts

  • Change from supportedChainIds: [56, 97] to supportedChainIds: [97]
  • Change from 56 to 97

• Update PancakeFactory address and code hash to FACTORY_ADDRESS and INIT_CODE_HASH at node_modules/@pancakeswap-libs/sdk/dist/constants.d.ts, node_modules/@pancakeswap-libs/sdk/dist/sdk.cjs.development.js, node_modules/@pancakeswap-libs/sdk/dist/sdk.cjs.production.min.js and node_modules/@pancakeswap-libs/sdk/dist/sdk.esm.js

• Update PancakeFactory address to v2 factory; PancakeRouter01 address to v2 router 01 and PancakeRouter address to v2 router 02 at src/state/swap/hooks.ts

• Update WBNB address at node_modules/@pancakeswap-libs/sdk/dist/sdk.cjs.development.js, node_modules/@pancakeswap-libs/sdk/dist/sdk.cjs.production.min.js, node_modules/@pancakeswap-libs/sdk/dist/sdk.esm.js

• VERIFY CHANGES by Find All old addresses and replace new ones:

  • WBNB: 0xaE8E19eFB41e7b96815649A6a60785e1fbA84C1e
  • PancakeFactory: 0xBCfCcbde45cE874adCB698cC183deBcF17952812
  • INIT_CODE_HASH: 0xd0d4c4cd0848c93cb4fd1f498d7013ee6bfb25783ea21593d5834f5d250ece66
  • PancakeRouter01: 0xf164fC0Ec4E93095b804a4795bBe1e041497b92a
  • PancakeRouter: 0x05fF2B0DB69458A0750badebc4f9e13aDd608C7F

• Deploy your own tokens

  • Deploy your own tokens and update info (token address + chainId to 97) to src/constants/token/pancakeswap.json
  • Remember update token icon with name as token address in lowercase mode to public/images/coins
  • Update support network from ChainId.MAINNET to ChainId.BSCTESTNET at src/constants/index.ts
  • Update coin addresses to your at src/constants/index.ts
  • Update src/components/Menu/index.tsx: From priceData.data[CAKE.address].price to priceData.data[CAKE.address]?.price ?? 0
  • Update src/hooks/useGetDocumentTitlePrice.ts: From priceData.data[CAKE.address].price to priceData.data[CAKE.address]?.price ?? 0

• Custom menu at src/components/Menu/config.ts

Start and Build Frontend

• Start

yarn start

• Build

yarn build

Deployment

• WBNB: 0x0dE8FCAE8421fc79B29adE9ffF97854a424Cad09

• PancakeFactory: 0x5Fe5cC0122403f06abE2A75DBba1860Edb762985

• INIT_CODE_HASH: 0xbb600ba95884f2c2837114fd2f157d00137e0b65b0fe5226523d720e4a4ce539

• PancakeRouter01: 0x3E2b14680108E8C5C45C3ab5Bc04E01397af14cB

• PancakeRouter: 0xCc7aDc94F3D80127849D2b41b6439b7CF1eB4Ae0

• Frontend: https://simpl-swaptoken.pages.dev

Tokens

• BAKE Token: 0xb289b361a633A9D2b0B39BAE76BB458d83f58CEC
• BUSD Token: 0xE0dFffc2E01A7f051069649aD4eb3F518430B6a4
• ETH Token: 0xE282a15DBad45e3131620C1b8AF85B7330Cb3b4B
• USDT Token: 0x7afd064DaE94d73ee37d19ff2D264f5A2903bBB0
• XRP Token: 0x3833B175Af1900b457cf83B839727AF6C9cF0bEe
• DAI Token: 0x3Cf204795c4995cCf9C1a0B3191F00c01B03C56C
• CAKE Token: 0xB8F5B50ed77596b5E638359d828000747bb3dd89

---