DEX Solidity Project

• Languages used: Solidity, Javascript, Html, Css
• What you will need in order to interact with this contract : Metamask account, a test blockhain which contains some test Ether token.

There are 2 parts of this project:

-A wallet part where you can add or withdraw any ETH or Chainlink Token ( if the metamask account is having LINK and ETH of course ). -A Dex part where you can place Limit orders or Market orders to fill the Limit orders

• In order to interact with this contract, you will need a Metamask account and a test blockchain, such as truffle.

When this contract is deployed, it will mint 10000 LINK, for ETH you will need to get a test private key (for example from Truffle test blockchain).

• Right now you can Sell and Buy only with Chainlink as the function is written like that, probably I will change it to accept any kind of token in the future

Functions in Solidity Part:

addToken

-You can add any token with this function to the tokenList array in order to deposit amounts later

deposit

• You can deposit any amount of token with this function which has already been added to the tokenList

withdraw

• Same thing just vice versa, you can withdraw any amount of tokens with any kind which is already in the wallet

getOrderBook

• If there were any limit orders placed here, this function will show you for which token it been placed for, whether it is a sell or buy, the amount and the price.
• It also shows how many of the token deposited in each order has been already filled.

depositETH

• An easy function to deposit any ETH to the wallet

withdrawETH

• Same thing but withdraw

createLimitOrder

• With this function you can create a buy or sell limit order, with the added amount and price

createMarketOrder

-With this function you can create a sell or buy Market order. If there is already a limit order in the opposite side, the trade will take place accordingly

getTokenListLength

• Simple function, shows you the tokenList Array.

JavasCript Functions

depositEth

• Connects with metamask and gets the inputted amount of eth to the contract

withdrawEth

• Same thing but vice versa

getOrderBookSellSide

• This shows you if there is any Order placed in the Sell Side

getOrderBookBuySide

• Same thing but in the Buy Side

placeLimitOrder

• This places the Limit order on the frontend and puts it into the orderbook array.

placeMarketOrder

• It places a market order and executes the trade if there is already a Limit order placed in the opposite side

prtEthBalance

• This shows you the walletBalance of the contract if there is any

prtTokens

• This shows you the Token the contract has ( when deployed, it will show you the Chainlink amount what is minted)

addToken

• You can add any other Tokens from Metamask ( only works with Chainlink right now)

withDrawToken

• Same thing but opposite

If you have any questions, write here: [email protected]