Create and Deploy a Token

(CRC Standards · Web3.js · Chain ID 2255)

This guide explains how to set up Web3.js, create wallets, query balances, and transfer MOS and CRC-20 tokens on the ClubMOS Blockchain.

ClubMOS is EVM-compatible, so standard Ethereum Web3 workflows apply with minimal changes.

---

Step 1: Set Up Web3.js

Install Web3.js

npm install web3

Initialize Web3 Connection

const Web3 = require("web3");

// Connect to ClubMOS RPC
const web3 = new Web3("https://mainnet3.mosscan.com");

✅ Ensure your application is connected to Chain ID 2255 when signing transactions.

---

Step 2: Create a New Wallet Address

const account = web3.eth.accounts.create();

console.log("Address:", account.address);
console.log("Private Key:", account.privateKey);

Important Security Notes

• Use this method for backend wallet generation only

• Never expose private keys in frontend code

• Store keys securely (HSM, vaults, encrypted storage)

---

Step 3: Get Transaction History (by Address)

Web3.js does not provide native transaction history queries. You must either:

• Scan blocks manually, or

• Use MOS Scan API (recommended for production)

Basic Block Scanning Example

async function getTransactions(address, startBlock, endBlock) {
  for (let i = startBlock; i <= endBlock; i++) {
    const block = await web3.eth.getBlock(i, true);
    if (!block || !block.transactions) continue;

    block.transactions.forEach(tx => {
      if (tx.from === address || tx.to === address) {
        console.log("Tx found in block", i, tx);
      }
    });
  }
}

getTransactions("0xYourAddress", 100, 120);

⚠️ For real applications, always use MOS Scan indexing APIs instead of block scanning.

---

Step 4: Get Native Coin Balance (MOS)

async function getBalance(address) {
  const balance = await web3.eth.getBalance(address);
  console.log(
    "Balance:",
    web3.utils.fromWei(balance, "ether"),
    "MOS"
  );
}

getBalance("0xYourAddress");

Returns the MOS native coin balance of the address.

---

Step 5: Get CRC-20 Token Balance

Minimal CRC-20 ABI

const tokenABI = [
  {
    constant: true,
    inputs: [{ name: "_owner", type: "address" }],
    name: "balanceOf",
    outputs: [{ name: "balance", type: "uint256" }],
    type: "function"
  }
];

Fetch Token Balance

async function getTokenBalance(tokenAddress, userAddress) {
  const token = new web3.eth.Contract(tokenABI, tokenAddress);
  const balance = await token.methods.balanceOf(userAddress).call();
  console.log("Token Balance:", balance);
}

getTokenBalance("0xYourTokenAddress", "0xYourAddress");

---

Step 6: Transfer Native Coin (MOS)

async function sendMOS(from, to, amount, privateKey) {
  const tx = {
    from,
    to,
    value: web3.utils.toWei(amount, "ether"),
    gas: 21000
  };

  const signedTx = await web3.eth.accounts.signTransaction(tx, privateKey);
  const receipt = await web3.eth.sendSignedTransaction(
    signedTx.rawTransaction
  );

  console.log("Transaction Hash:", receipt.transactionHash);
}

sendMOS(
  "0xYourAddress",
  "0xReceiverAddress",
  "0.1",
  "0xYourPrivateKey"
);

---

Step 7: Transfer CRC-20 Tokens

CRC-20 Transfer ABI

const tokenABI = [
  {
    constant: false,
    inputs: [
      { name: "_to", type: "address" },
      { name: "_value", type: "uint256" }
    ],
    name: "transfer",
    outputs: [{ name: "", type: "bool" }],
    type: "function"
  }
];

Send Tokens

async function sendToken(
  tokenAddress,
  from,
  to,
  amount,
  privateKey
) {
  const token = new web3.eth.Contract(tokenABI, tokenAddress);
  const data = token.methods.transfer(to, amount).encodeABI();

  const tx = {
    from,
    to: tokenAddress,
    data,
    gas: 100000
  };

  const signedTx = await web3.eth.accounts.signTransaction(tx, privateKey);
  const receipt = await web3.eth.sendSignedTransaction(
    signedTx.rawTransaction
  );

  console.log("Token Tx Hash:", receipt.transactionHash);
}

// Example: 1 token with 18 decimals
sendToken(
  "0xYourTokenAddress",
  "0xYourAddress",
  "0xReceiverAddress",
  "1000000000000000000",
  "0xYourPrivateKey"
);

---

Best Practices for ClubMOS Developers

• Always confirm Chain ID = 2255

• Use MOS Scan APIs for indexing & analytics

• Never expose private keys client-side

• Test on internal environments before production

• Verify contracts on mosscan.com

---

Summary

Using Web3.js, developers can easily:

• Generate wallets

• Query balances

• Transfer MOS and CRC tokens

• Build DeFi, NFT, and enterprise applications

ClubMOS combines EVM familiarity, low fees, and developer-first tooling for real-world blockchain adoption.