jexchange-defi / jex-sc-dex-pair

jex-sc-dex-pair

Liquidity pool smart contract with x*y=k AMM

List of endpoints

• addInitialLiquidity
• addLiquidity
• addLiquiditySingle
• configureLiqProvidersFees
• configurePlatformFees
• enableMintBurn
• estimateAddLiquiditySingle
• estimateAmountIn
• estimateAmountOut
• estimateRemoveLiquidity
• estimateRemoveLiquiditySingle
• getAnalyticsForLastEpochs
• getFirstToken
• getLiqProvidersFees
• getPlatformFees
• getPlatformFeesReceiver
• getSecondToken
• getStatus
• init
• isPaused
• issueLpToken
• pause
• removeLiquidity
• removeLiquiditySingle
• swapTokensFixedInput
• swapTokensFixedOutput
• unpause

How-to deploy a pool

Deploy the smart contract

Prepare snippets shell file in interaction folder.

And run:

xxx.snippets.sh deploy

Check results in the explorer.

Issue LP token

xxx.snippets.sh issueLpToken

Check results in the explorer.

Enable LP token mint/burn

The smart contract needs to be able to mint and burn LP tokens.

To do so, run:

xxx.snippets.sh enableMintBurn

Check results in the explorer.

Configure fees

Configure fees for liquidity providers and platform fees.

xxx.snippets.sh configureLiqProvidersFees
xxx.snippets.sh configurePlatformFees

Note: 100 = 1%, 20 = 0.2%

Add initial liquidity

Adding initial liquidity will determine the initial exchange rate of tokens and the value of 1 LP token.

For example, adding 10,000 JEX and 1 wEGLD:

• initial exchange rate will be 1 wEGLD = 10,000 JEX (1 JEX = 0.0001 wEGLD)
• 1 LP token will be worth (1 wEGLD + 10,000 JEX)

xxx.snippets.sh addInitialLiquidity

Check results in the explorer.