> ## Documentation Index
> Fetch the complete documentation index at: https://docs.initia.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Creating Move Coin

This tutorial guides you through the process of creating and minting your own
coin using the `0x1::managed_coin` module on the Initia blockchain. It includes
initializing your coin, obtaining metadata, minting coins, and checking the
balances.

# Step 1: Initialize Your Coin

To initialize your coin, you must call the `0x1::managed_coin::initialize`
function.

```move theme={null}
public entry fun initialize(
    account: &signer,
    maximum_supply: Option<u128>,
    name: String,
    symbol: String,
    decimals: u8,
    icon_uri: String,
    project_uri: String,
)
```

<CodeGroup>
  ```bash CLI theme={null}
  initiad tx move execute 0x1 managed_coin initialize \
      --args '["option<u128>:null", "string:my_coin", "string:MYCOIN", "u8:6", "string:ICON_URI", "string:PROJECT_URI"]' \
      --from [key-name] \
      --gas auto --gas-adjustment 1.5 --gas-prices 0.015uinit \
      --node [rpc-url]:[rpc-port] --chain-id [chain-id]
  ```

  ```ts InitiaJS theme={null}
  import {
    bcs,
    RESTClient,
    MnemonicKey,
    MsgExecute,
    Wallet,
  } from '@initia/initia.js'

  async function createCoin() {
    const restClient = new RESTClient('https://rest.testnet.initia.xyz', {
      gasPrices: '0.015uinit',
      gasAdjustment: '1.5',
    })

    const key = new MnemonicKey({
      mnemonic: 'beauty sniff protect ...',
    })
    const wallet = new Wallet(restClient, key)

    const msgs = [
      new MsgExecute(
        key.accAddress,
        '0x1',
        'managed_coin',
        'initialize',
        [],
        [
          // max supply, if you want to set max supply, insert number instead of null
          bcs.option(bcs.u128()).serialize(null).toBase64(),
          bcs.string().serialize('my_coin').toBase64(), // name
          bcs.string().serialize('MYCOIN').toBase64(), // symbol
          // decimal point (raw value 1 consider to 10 ** (- decimalPoint))
          bcs.u8().serialize(6).toBase64(),
          bcs.string().serialize('').toBase64(), // icon uri
          bcs.string().serialize('').toBase64(), // project uri
        ],
      ),
    ]

    // sign tx
    const signedTx = await wallet.createAndSignTx({ msgs })
    // send(broadcast) tx
    restClient.tx.broadcastSync(signedTx).then((res) => console.log(res))
    // {
    //   height: 0,
    //   txhash: '40E0D5633D37E207B2463D275F5B479FC67D545B666C37DC7B121ED551FA18FC',
    //   raw_log: '[]'
    // }
  }

  createCoin()
  ```
</CodeGroup>

# Step 2: Mint Coin

To mint coins, you will use the `0x1::managed_coin::mint_to` function.

```move theme={null}
public entry fun mint_to(
    account: &signer,
    dst_addr: address,
    metadata: Object<Metadata>,
    amount: u64,
)
```

Before minting, you need to obtain the metadata for your coin, which can be done
through the `0x1::coin::metadata` view function or by using
`sha3_256(creator+symbol+0xFE)`.

## Obtaining Metadata

<CodeGroup>
  ```bash CLI theme={null}
  initiad query move view 0x1 coin metadata \
      --args '["address:0x...", "string:MYCOIN"]' \
      --node [rpc-url]:[rpc-port]

  # data: '"0x2d81ce0b6708fccc77a537d3d1abac8c9f1f674f4f76390e3e78a89a52d4aacb"'

  ```

  ```ts InitiaJS theme={null}
  import { bcs, RESTClient, MnemonicKey } from '@initia/initia.js'
  import * as crypto from 'crypto'

  async function getCoinMetadata() {
    const restClient = new RESTClient('https://rest.testnet.initia.xyz', {
      gasPrices: '0.015uinit',
      gasAdjustment: '1.5',
    })

    const key = new MnemonicKey({
      mnemonic: 'beauty sniff protect ...',
    })

    // Method 1: use view function
    restClient.move
      .viewFunction(
        '0x1',
        'coin',
        'metadata',
        [],
        [
          bcs.address().serialize(key.accAddress).toBase64(),
          bcs.string().serialize('MYCOIN').toBase64(),
        ],
      )
      .then(console.log)
    // 0xcf921815f2b4827930ac01b3116ed3caad08ccd443f9df6eb22cd5344a548660

    // Method 2: use sha3-256
    console.log(coinMetadata(key.accAddress, 'MYCOIN'))
    // cf921815f2b4827930ac01b3116ed3caad08ccd443f9df6eb22cd5344a548660
  }

  getCoinMetadata()

  function coinMetadata(creator: string, symbol: string): string {
    const OBJECT_FROM_SEED_ADDRESS_SCHEME = 0xfe
    const addrBytes = bcs.address().serialize(creator).toBytes()
    const seed = Buffer.from(symbol, 'ascii')
    const bytes = [...addrBytes, ...seed, OBJECT_FROM_SEED_ADDRESS_SCHEME]
    const hash = crypto.createHash('SHA3-256')
    const digest = hash.update(Buffer.from(bytes)).digest()
    return digest.toString('hex')
  }
  ```
</CodeGroup>

## Minting Coins

<CodeGroup>
  ```bash CLI theme={null}
  initiad tx move execute 0x1 managed_coin mint_to \
      --args '["address:0x...", "object:0x2d81ce0b6708fccc77a537d3d1abac8c9f1f674f4f76390e3e78a89a52d4aacb", "u64:100000000"]' \
      --from [key-name] \
      --gas auto --gas-adjustment 1.5 --gas-prices 0.015uinit \
      --node [rpc-url]:[rpc-port] --chain-id [chain-id]
  ```

  ```ts InitiaJS theme={null}
  import {
    bcs,
    RESTClient,
    MnemonicKey,
    MsgExecute,
    Wallet,
  } from '@initia/initia.js'
  import * as crypto from 'crypto'

  async function mintCoin() {
    const restClient = new RESTClient('https://rest.testnet.initia.xyz', {
      gasPrices: '0.015uinit',
      gasAdjustment: '1.5',
    })

    const key = new MnemonicKey({
      mnemonic: 'beauty sniff protect ...',
    })
    const wallet = new Wallet(restClient, key)

    const msgs = [
      new MsgExecute(
        key.accAddress,
        '0x1',
        'managed_coin',
        'mint_to',
        [],
        [
          bcs.address().serialize(key.accAddress).toBase64(),
          bcs
            .object()
            .serialize(coinMetadata(key.accAddress, 'MYCOIN'))
            .toBase64(),
          bcs.u64().serialize(100000000).toBase64(),
        ],
      ),
    ]

    // sign tx
    const signedTx = await wallet.createAndSignTx({ msgs })
    // send(broadcast) tx
    restClient.tx.broadcastSync(signedTx).then((res) => console.log(res))
    // {
    //   height: 0,
    //   txhash: '593827F58F3E811686EC6FFDAD2E27E91DA707965F0FF33093DC071D47A46786',
    //   raw_log: '[]'
    // }
  }

  mintCoin()

  function coinMetadata(creator: string, symbol: string): string {
    const OBJECT_FROM_SEED_ADDRESS_SCHEME = 0xfe
    const addrBytes = bcs.address().serialize(creator).toBytes()
    const seed = Buffer.from(symbol, 'ascii')
    const bytes = [...addrBytes, ...seed, OBJECT_FROM_SEED_ADDRESS_SCHEME]
    const hash = crypto.createHash('SHA3-256')
    const digest = hash.update(Buffer.from(bytes)).digest()
    return digest.toString('hex')
  }
  ```
</CodeGroup>

After minting, you can check the balances to verify the minting process.