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DEX frontend

Available Scripts

In the project directory, you can run:

npm start

Runs the app in the development mode.
Open http://localhost:3000 to view it in the browser.

The page will reload if you make edits.
You will also see any lint errors in the console.

npm run build

Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.

The build is minified and the filenames include the hashes.
Your app is ready to be deployed!

See the section about deployment for more information.

connectToPair Globally allows dex client to connect to pair including sharding optimization of deployed wallets

API methods

getCurrentExtension()

Returns object with unified current extension main methods

async function broxus() {

    await ton.ensureInitialized();
    const {accountInteraction} = await ton.requestPermissions({
        permissions: ['tonClient', 'accountInteraction']
    });
    if (accountInteraction == null) {
        return new Error('Insufficient permissions');
    }
    let curExtenson = {};
    let providerState = await ton.getProviderState();
    let netType = providerState.selectedConnection;
    curExtenson.network = nets[netType]
    curExtenson.name = "broxus";
    curExtenson.address = accountInteraction.address._address;
    curExtenson.pubkey = accountInteraction.publicKey;
    curExtenson.contract = (contractAbi, contractAddress) => {
        return new Contract(contractAbi, new AddressLiteral(contractAddress))
    };
    curExtenson.runMethod = async (methodName, params, contract) => {
        return await contract.methods[methodName](params).call({cachedState: undefined})
    };
    curExtenson.callMethod = async (methodName, params, contract) => {
        return await contract.methods[methodName](params).sendExternal({publicKey: accountInteraction.publicKey})
    };
    curExtenson.SendTransfer = async (to,amount) => {
        return await ton.sendMessage({
            sender: curExtenson.address,
            recipient: new Address(to),
            amount: amount,
            bounce: false
        })
    }
    return curExtenson
}

async function extraton() {
    const provider = getProvider();
    const signer = await provider.getSigner();
    const network = await provider.getNetwork();
    let wallet = signer.getWallet()
    
    let curExtenson = {};
    curExtenson.network = network.server;
    curExtenson.name = "extraton";
    curExtenson.address = signer.wallet.address;
    curExtenson.pubkey = await signer.getPublicKey();
    curExtenson.contract = (contractAbi, contractAddress) => {
        return new freeton.Contract(signer, contractAbi, contractAddress)
    };
    curExtenson.runMethod = async (methodName, params, contract) => {
        return await contract.methods[methodName].run(params)
    };
    curExtenson.callMethod = async (methodName, params, contract) => {
        return await contract.methods[methodName].call(params)
    };
    curExtenson.SendTransfer = async (to,amount) => {
        return await wallet.transfer(to, amount, false,"")
    }
    return curExtenson
}

setCreator()

Function to deploy dex client - it is performed in several stages:

  • first step - check client exists on dex root as creator(need to send few tons as pay for register your pubkey on dex root)
    • if false will offer you to send transfer
  • second step - get shard arg
  • last one - createDEXclient methos that you should sign in extension.

Dex client will be deployes in few seconds.

connectToPair()

Function to connect to dex pair - it is performed in several stages:

  • first step - connectPair, pair sets it`s data to dex client
  • second step - get shard arg for all wallets that need to deploy - depends on pair token roots
  • last step - deploy wallets that client does not have

swapA()/swapB()

Allows user to use processSwapA/processSwapB call method on dex client smart contract

export async function swapA(curExt,pairAddr, qtyA) {
    const {pubkey, contract, callMethod,SendTransfer} = curExt._extLib
    let getClientAddressFromRoot = await checkPubKey(pubkey)
    if(getClientAddressFromRoot.status === false){
        return getClientAddressFromRoot
    }
    let checkClientBalance = await getClientBalance(getClientAddressFromRoot.dexclient)
    if(500000000 > (checkClientBalance*1000000000)){
        await transfer(SendTransfer,getClientAddressFromRoot.dexclient,3000000000)
    }
    try {
        const clientContract = await contract(DEXclientContract.abi, getClientAddressFromRoot.dexclient);
        const processSwapA = await callMethod("processSwapA", {pairAddr:pairAddr, qtyA:qtyA}, clientContract)
        return processSwapA
    } catch (e) {
        return e
    }
}

processLiquidity()

Push liquidity to pair, it turns out LP tokens for some amount of qtyA & qtyB tokens


export async function processLiquidity(curExt,pairAddr, qtyA, qtyB) {
    const {pubkey, contract, SendTransfer, callMethod} = curExt._extLib
    let getClientAddressFromRoot = await checkPubKey(pubkey)
    if(getClientAddressFromRoot.status === false){
        return getClientAddressFromRoot
    }
    let checkClientBalance = await getClientBalance(getClientAddressFromRoot.dexclient)
    if(500000000 > (checkClientBalance*1000000000)){
        await transfer(SendTransfer,getClientAddressFromRoot.dexclient,3000000000)
    }
    try {
        const clientContract = await contract(DEXclientContract.abi, getClientAddressFromRoot.dexclient);
        const processLiquidity = await callMethod("processLiquidity", {pairAddr:pairAddr, qtyA:Number(qtyA).toFixed(0), qtyB:Number(qtyB).toFixed(0)}, clientContract)
        return processLiquidity
    } catch (e) {
        return e
    }
}

returnLiquidity()

Return liquidity from pair, it turns out tokens of pair for LP tokens or pair

export async function returnLiquidity(curExt,pairAddr, tokens) {
    const {pubkey, contract, SendTransfer, callMethod} = curExt._extLib
    let getClientAddressFromRoot = await checkPubKey(pubkey)
    if(getClientAddressFromRoot.status === false){
        return getClientAddressFromRoot
    }
    let checkClientBalance = await getClientBalance(getClientAddressFromRoot.dexclient)
    if(500000000 > (checkClientBalance*1000000000)){
        await transfer(SendTransfer,getClientAddressFromRoot.dexclient,3000000000)
    }
    try {
        const clientContract = await contract(DEXclientContract.abi, getClientAddressFromRoot.dexclient);
        const returnLiquidity = await callMethod("returnLiquidity", {pairAddr:pairAddr, tokens: tokens}, clientContract)
        return returnLiquidity
    } catch (e) {
        return e
    }
}