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get 20 0FP0EXP Token to remove my personal ADS.

Ethereum Virtual Machine
Solana
Tron
Stellar
Zilliqa
Neo
Cosmos Atom
Eos
Near
Waves
Hive
Wax
Algorand

Ethereum Virtual Machines

Estimate Gas Limit

Recipient:

Amount:

Gas Limit Hexadecimal:

Gas Limit:

<button onclick="connect()" id="connect">Connect</button>
<p>Account: <span id="showAccount"></span></p>
<p>Personal Signature: <span id="personal-sign"></span></p>

<script>
async function connect() {
  const accounts = await ethereum.request({ method: 'eth_requestAccounts' });
  const account = accounts[0];
  const message = "Hello from signer!";
  const signature = await ethereum.request({ method: 'personal_sign', params: [ message, account ] });
  
  if(ethereum.isConnected()){
    document.getElementById("showAccount").innerHTML = account;
    document.getElementById("connect").innerHTML = "connected";
    document.getElementById("personal-sign").innerHTML = signature;
  }
}

ethereum.on('accountsChanged', function (accounts) {
  connect();
});
</script>

Send Native Asset

Recipient:
Amount:

<button onclick="sendeth()">Send Native Asset</button>
<br />
Recipient: <input type="text" id="recipient1" name="recipient1" value="0x3D4c67A2A40bC24ec53ab767b9247c02A2250BCB"/>
<br />
Amount: <input type="number" id="amount1" name="amount1" value="0"/>
<br />

<script>
document.getElementById("recipient1").addEventListener("change", changerecipient1input);

let recipient1 = document.getElementById("recipient1").value;

function changerecipient1input() {
	recipient1 = document.getElementById("recipient1").value;
}

document.getElementById("amount1").addEventListener("change", changeamount1input);

let amount1 = "0x" + (parseFloat(document.getElementById("amount1").value)*10 ** 18).toString(16);

function changeamount1input() {
	amount1 = "0x" + (parseFloat(document.getElementById("amount1").value)*10 ** 18).toString(16);
}

//Sending Ethereum to an address
async function sendeth() {
  const accounts = await ethereum.request({ method: 'eth_requestAccounts' });
  
  params = [
        {
          from: accounts[0],
          to: recipient1,
          value: amount1,
          gasPrice: await ethereum.request({method: 'eth_gasPrice', params: []}),
          gas: '' //auto,
        },
      ];
  
  ethereum
    .request({
      method: 'eth_sendTransaction',
      params,
    })
    .then((txHash) => console.log(txHash))
    .catch((error) => console.log(error));
}
</script>

Send Message to an EVM Address

Recipient:

Amount:

<button onclick="sendmsg()">Send Message</button>
<br />
Recipient: <input type="text" id="recipient" name="recipient" value="0x3D4c67A2A40bC24ec53ab767b9247c02A2250BCB"/>
<br />
<textarea id="message" rows="4" cols="50" name="message" value="Enter Message">Enter Message</textarea>
<br />
Amount: <input type="number" id="amount" name="amount" value="0"/>
<br />

<script>
document.getElementById("recipient").addEventListener("change", changerecipientinput);

let recipient = document.getElementById("recipient").value;

function changerecipientinput() {
	recipient = document.getElementById("recipient").value;
}

function ascii_to_hex(str) {
    var arr1 = [];
    for (var n = 0, l = str.length; n < l; n ++) 
        {
        var hex = Number(str.charCodeAt(n)).toString(16);
        arr1.push(hex);
        }
    return arr1.join('');
}

document.getElementById("message").addEventListener("change", changemessageinput);

let message = "0x" + ascii_to_hex(document.getElementById("message").value);

function changemessageinput() {
	message = "0x" + ascii_to_hex(document.getElementById("message").value);
    console.log(message);
}

document.getElementById("amount").addEventListener("change", changeamountinput);

let amount = "0x" + (parseFloat(document.getElementById("amount").value)*10 ** 18).toString(16);

function changeamountinput() {
	amount = "0x" + (parseFloat(document.getElementById("amount").value)*10 ** 18).toString(16);
}

//Sending Ethereum to an address
async function sendmsg() {
  const accounts = await ethereum.request({ method: 'eth_requestAccounts' });
  
  params = [
        {
          from: accounts[0],
          to: recipient,
          value: amount,
          gasPrice: await ethereum.request({method: 'eth_gasPrice', params: []}),
          gas: '', //auto
          data: message
        },
      ];
  
  ethereum
    .request({
      method: 'eth_sendTransaction',
      params,
    })
    .then((txHash) => console.log(txHash))
    .catch((error) => console.error);
}
</script>

Get Balances on Multiple Chains Using a Single Web3 Wallet

Binance Smart Chain Logo BSC Pancake Swap Logo Pancake Swap:

Polygon Quick Swap Logo Quick Swap:

Avalanche Logo Avalanche Pangolin DEX Logo Pangolin DEX:

Arbitrum Logo Arbitrum Sushi Swap Logo Sushi Swap:

Thunder Core Logo TT Swap:

Energi Logo Energi Swap:

<button onclick="gettokendexholders()">Get 0FP0EXP Token DEX Holders</button>
<p><img style="height: 1em" src="https://assets.coingecko.com/coins/images/825/small/bnb-icon2_2x.png?1644979850" alt="Binance Smart Chain Logo"/>BSC <img style="height: 1em" src="https://assets.coingecko.com/coins/images/12632/small/pancakeswap-cake-logo_%281%29.png?1629359065" alt="Pancake Swap Logo"/><a href="https://pancakeswap.finance/swap?outputCurrency=0x99a828fe0C1D68D9aeBBB8651CDBDbac65dc6207">Pancake Swap:</a> <span id="pancake-swap-holder"></span></p>
<p><img style="height: 1em" src="https://assets.coingecko.com/coins/images/4713/small/matic-token-icon.png?1624446912" alt="Polygon Logo"/>Polygon <img style="height: 1em" src="https://assets.coingecko.com/coins/images/13970/small/1_pOU6pBMEmiL-ZJVb0CYRjQ.png?1613386659" alt="Quick Swap Logo"/><a href="https://quickswap.exchange/#/swap?outputCurrency=0x99a828fe0C1D68D9aeBBB8651CDBDbac65dc6207">Quick Swap</a>: <span id="quick-swap-holder"></span></p>
<p><img style="height: 1em" src="https://assets.coingecko.com/coins/images/12559/small/coin-round-red.png?1604021818" alt="Avalanche Logo"/>Avalanche <img style="height: 1em" src="https://assets.coingecko.com/coins/images/14023/small/mXGnm3Eo_400x400.jpg?1644478963" alt="Pangolin DEX Logo"/><a href="https://app.pangolin.exchange/#/swap?outputCurrency=0x99a828fe0C1D68D9aeBBB8651CDBDbac65dc6207">Pangolin DEX</a>: <span id="pangolin-dex-holder"></span></p>
<p><img style="height: 1em" src="https://bridge.arbitrum.io/images/Arbitrum_Symbol_-_Full_color_-_White_background.svg" alt="Arbitrum Logo"/>Arbitrum <img style="height: 1em" src="https://assets.coingecko.com/coins/images/12271/small/512x512_Logo_no_chop.png?1606986688" alt="Sushi Swap Logo"/><a href="https://arbitrum.sushi.com/en/swap?outputCurrency=0x99a828fe0C1D68D9aeBBB8651CDBDbac65dc6207">Sushi Swap</a>: <span id="sushi-swap-holder"></span></p>
<p><img style="height: 1em" src="https://www.gitbook.com/cdn-cgi/image/width=40,height=40,fit=contain,dpr=1,format=auto/https%3A%2F%2F1384322056-files.gitbook.io%2F~%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Fspaces%252FHVry7OTN1UZzjjhTeYXg%252Ficon%252FbEcQNGd1oiAjvoZ28Ek6%252FSymbol_Primary.png%3Falt%3Dmedia%26token%3Da606230a-2997-49ff-84b0-9797da6bb10a" alt="Thunder Core Logo"/><a href="https://ttswap.space/#/swap?outputCurrency=0x99a828fe0C1D68D9aeBBB8651CDBDbac65dc6207">TT Swap</a>: <span id="tt-swap-holder"></span></p>
<p><img style="height: 1em" src="https://assets.coingecko.com/coins/images/5795/small/3218.png?1604798557" alt="Energi Logo"/><a href="https://app.energiswap.exchange/#/swap?outputCurrency=0x99a828fe0C1D68D9aeBBB8651CDBDbac65dc6207">Energi Swap</a>: <span id="energi-swap-holder"></span></p>

<script src="https://cdn.ethers.io/lib/ethers-5.2.umd.min.js" type="application/javascript"></script>
	
<script>
function gettokendexholders() {
  const evmrpcjson = new XMLHttpRequest();
  evmrpcjson.onload = async function() {
    const chains = JSON.parse(this.responseText);
    await changenetworkandget(chains['bscmn'], 'pancake-swap-holder', '0x4527094fb24bb1642cf52386af4842be47031da1');
    await changenetworkandget(chains['maticmn'], 'quick-swap-holder', '0x60b32bdc995d4ad49ddcbb0728928ee115c3541b');
    await changenetworkandget(chains['avaxccmn'], 'pangolin-dex-holder', '0x23babaa2fc7170d741f5183c9689c70b28bc91fe');
    await changenetworkandget(chains['arbtrmmn'], 'sushi-swap-holder', '0xbc443f7212dc071ae71c6eff2b779fa139852a04');
    await changenetworkandget(chains['ttmn'], 'tt-swap-holder', '0x07a2701342444108ff30fd973ee4e4854bb085bb');
    await changenetworkandget(chains['energimn'], 'energi-swap-holder', '0x3998a06CDA1c57318C7aa430f42468a56081d060');
  }
  evmrpcjson.open("GET", "https://0fajarpurnama0.github.io/assets/json/evmrpc.json");
  evmrpcjson.send();
}

async function changenetworkandget(chain, dex, holder) {
  try {
    await ethereum.request({
      method: 'wallet_switchEthereumChain',
      params: [{ chainId: chain['params'][0].chainId }],
    });
  } catch (switchError) {
    // This error code indicates that the chain has not been added to MetaMask.
    if (switchError.code === 4902) {
      try {
        let params = chain['params'];
        await ethereum.request({
          method: 'wallet_addEthereumChain',
          params,
        });
      } catch (addError) {
        // handle "add" error
      }
    }
    // handle other "switch" errors
  }
  getdextokenbalance(dex, holder);
}

async function getdextokenbalance(dex, holder) {
	const provider = new ethers.providers.Web3Provider(window.ethereum);
    await provider.send("eth_requestAccounts", []);
    const signer = provider.getSigner();
    
    const minabi = [
    // Read-Only Functions
    "function balanceOf(address owner) view returns (uint256)",
    "function decimals() view returns (uint8)",
    "function symbol() view returns (string)",

    // Authenticated Functions
    "function transfer(address to, uint amount) returns (bool)",

    // Events
    "event Transfer(address indexed from, address indexed to, uint amount)"
	];
    
    const contract_address = "0x99a828fe0c1d68d9aebbb8651cdbdbac65dc6207";
    
    const erc20 = new ethers.Contract(contract_address, minabi, provider);
    
    const getBalance = await erc20.balanceOf(holder);
    
    document.getElementById(dex).innerHTML = getBalance/10**18;
}
</script>

Solana

Beyond here requires Solana Web3 JS:

Tron

Stellar

For all Freighter use:

<script src="https://cdnjs.cloudflare.com/ajax/libs/stellar-freighter-api/1.1.2/index.min.js"></script>

For all Stellar SDK use:

<script src="https://cdnjs.cloudflare.com/ajax/libs/stellar-sdk/10.1.0/stellar-sdk.min.js"></script>

Zilliqa

Neo</h2>

Cosmos Atom

EOS

Near

Near Wallet

Requires:

<script src="https://cdn.jsdelivr.net/npm/near-api-js@0.41.0/dist/near-api-js.min.js"></script>

Waves

Wax

Wax JS vanilla JavaScript library is available at https://github.com/worldwide-asset-exchange/waxjs/tree/develop/dist-web. Download to your local file or server or reupload to a CDN because this Github does not support script src. I upload them to github page as well if you need them:

<script src="https://0fajarpurnama0.github.io/assets/js/3rdpartyweb3/waxjs.js"></script>

Algorand

MyAlgo Wallet

Get the library on their Github:

<script src="https://github.com/randlabs/myalgo-connect/releases/download/v1.1.3/myalgo.min.js"></script>

Vechain

Get the connex library:

<script src="https://unpkg.com/@vechain/connex@2"></script>

Repository: https://github.com/0fajarpurnama0/0fajarpurnama0.github.io/blob/master/_posts/2022-03-02-web3-simple-widgets.md

Web3 Simple Widgets

Table of Contents