Polygon-NFT-DApp-Tutorial-Series/index.html at main · ThisIsCodeXpert/Polygon-NFT-DApp-Tutorial-Series · GitHub

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<html>
    <head>

        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.1/jquery.min.js" integrity="sha512-aVKKRRi/Q/YV+4mjoKBsE4x3H+BkegoM/em46NNlCqNTmUYADjBbeNefNxYV7giUp0VxICtqdrbqU7iVaeZNXA==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/web3/1.8.1/web3.min.js" integrity="sha512-vtUOC0YIaNm/UutU7yfnwqnF9LOYnXtpHe2kwi1nvJNloeGQuncNBiEKP/3Ww3D62USAhbXGsnYpAYoiDsa+wA==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
        <link rel="stylesheet" type="text/css" href="style.css" />
    </head>
    <body>

        <center>
            <h1>Polygon Digital Collectibles DApp</h1>
            <p id="totalNFTs"></p>
            <div>
                <button class="button" onclick="MintNFT()">Mint NFT</button>
            </div>
            <hr>
            <div>
                <button class="button" onclick="GetNFT()">Get NFT</button>
                <input id="tokenId" placeholder="Type tokenId">
            </div>
            <div class="imgdiv">
                <img height=100 id="nftpng"/>
                <p id="nftname"></p>
                <p id="nftowner"></p>
            </div>
            <hr>
            <div>
                <button class="button" onclick="TransferNFT()">Transfer NFT</button>
                <input id="toAddress" placeholder="Transfer address">

            </div>
        </center>

        <script src="contract.js"></script>
        <script>
            var accounts;
            var myContract;
            async function CheckMetamaskConnection(){
                if(window.ethereum){
                    try{
                        web3 = new Web3(window.ethereum);
                        accounts = await window.ethereum.request({method:'eth_requestAccounts'})
                        console.log("Done!")
                        return true;
                    }catch(err){
                        console.log(err)
                        return false;
                    }
                } else {
                    console.log("Metamask Not Found!")
                    return false;
                }
            }

            $(document).ready(async function () {

                var IsMetaMask = await CheckMetamaskConnection();

                if(IsMetaMask){
                    console.log("IsMetaMask = true");
                    myContract = await new web3.eth.Contract(SmartContractABI, SmartContractAddress);
                    console.log(myContract);
                    totalNFTsMinted();
                } else {
                    alert("Metamask not detected!")
                }

            })

            async function totalNFTsMinted(){
                await myContract.methods.currentTokenId().call(function(err, res){
                    if(!err){
                        console.log(res);
                        document.getElementById("totalNFTs").innerHTML = "Total NFTs Minted : " + res;
                    }
                })
            }

            async function GetNFT(){
                var tokenId = document.getElementById("tokenId").value;

                await myContract.methods.tokenURI(tokenId).call(async function(err, res){
                    if(!err){
                        console.log(res);
                        JSONResponse = await httpGet(res);
                        JSONResponse = JSON.parse(JSONResponse);
                        console.log(JSONResponse)
                        document.getElementById("nftpng").src = JSONResponse["image"];
                        document.getElementById("nftname").innerHTML = "Name : " + JSONResponse["name"];
                        getNFTOwner(tokenId);
                    } else{
                        console.log(err);
                    }
                })
            }

            async function getNFTOwner(_tokenId){
                await myContract.methods.ownerOf(_tokenId).call(function(err, res){
                    if(!err){
                        console.log(res);
                        document.getElementById("nftowner").innerHTML = "Owner : " + res;
                    }
                })
            }

            async function MintNFT(_tokenId){
                await myContract.methods.mintNFT().send({from: accounts[0]}, function(err, res){
                    if(!err){
                        console.log(res);
                    }else{
                        console.log(err);
                    }
                })
            }

            async function TransferNFT(_tokenId){
                var toAddress = document.getElementById("toAddress").value;
                var tokenId = document.getElementById("tokenId").value;
                await myContract.methods.transferFrom(accounts[0], toAddress, tokenId).send({from: accounts[0]}, function(err, res){
                    if(!err){
                        console.log(res);
                    }else{
                        console.log(err);
                    }
                })
            }

            function httpGet(theUrl){
                var xmlHttp = new XMLHttpRequest();
                xmlHttp.open( "GET", theUrl, false ); // false for synchronous request
                xmlHttp.send( null );
                return xmlHttp.responseText;
            }

        </script>
    </body>


</html>