Create Token Mint

Creates a new SPL token mint with specified parameters.

Returns: Promise<Address>

Options

mintAuthority: KeyPairSigner - Authority that can mint new tokens
decimals: number - Number of decimal places for the token
name: string - Name of the token
symbol: string - Symbol of the token
uri: string - URI pointing to the token’s metadata (eg: “https://arweave.net/abc123 ”)
additionalMetadata: Record<string, string> | Map<string, string> (optional) - Additional metadata fields

Examples

Create a token with additional metadata:


const mintAddress = await connection.createTokenMint({
  mintAuthority: wallet,
  decimals: 9,
  name: "My Token",
  symbol: "TKN",
  uri: "https://example.com/token-metadata.json",
  additionalMetadata: {
    description: "A sample token",
    website: "https://example.com",
  },
});

A metadata.json file, and any images inside, should be hosted at a decentralized storage service . The file itself is at minimum:


{
  "image": "https://raw.githubusercontent.com/solana-developers/opos-asset/main/assets/CompressedCoil/image.png"
}

Images should be square, and either 512x512 or 1024x1024 pixels, and less than 100kb if possible.