token-swapper

Smart Contract used to swap the amount in a token A to token B through the Uniswap/Pancakeswap Router.

Used Truffle to deploy and test the contact

Requirements

• Node.js (v12 or later)

For testing make sure to have ganache-cli installed as it'll be used to fork the mainnet and interact with "real" Router and Factory contracts.

Installing

Download the repo and execute npm install --save to install all the needed dependencies.

git clone https://github.com/Pere970/token-swapper.git

npm install --save

Commands

Compile smart contracts with truffle:

truffle compile

Console: to interact with the connected blockchain

truffle console

To run a console over an specific configured network from the truffle-config:

truffle console --network network_from_truffleconfig

Testing

For testing ganache-cli will be used to fork the mainnet and have access to the real Router and Factory contracts.

To do that an Infura endpoint will be needed.

Testing Instructions

On a separate terminal run the following command:

ganache-cli --fork https://mainnet.infura.io/v3/{YOUR_INFURA_PROJECTID}@{DESIRED_BLOCKNUMBER_TO_FORK_FROM}}

This will create a local blockchain forking the mainnet from the blocknumber you specified.

Then on a console on the project folder, while running the locall blockchain, run the following command:

truffle test --network mainnet_fork