const sdk = new CryptumSdk({
environment: 'testnet',
apiKey: 'YOUR-API-KEY',
})
Create NFTs
Create an NFT in Solana.
sdk.nft.create(opts)
opts.protocol (string)(required) - blockchain protocol must be SOLANA.
opts.wallet (Wallet)(required) - wallet to sign the transaction with.
opts.name (string)(required) - token name.
opts.symbol (string)(required) - token symbol.
opts.maxSupply (number) - maximum supply for this token (0 for unlimited; 1 for unique; 2 or more for multiple editions). Required to create master edition and copies with limited supply.
opts.amount (string) - token amount to be first minted. Required only if maxSupply is 0 or undefined.
opts.uri (string)(required) - URI containing NFT metadata.
opts.creators (array of SolanaCreators)(optional) - list of creators.
// Creating NFT with master edition and max supply of 10 copies
const { hash } = await sdk.nft.create({
protocol: 'SOLANA',
wallet,
name: 'NFT',
symbol: 'NFT',
uri: 'https://....',
maxSupply: '10',
})
// Creating NFT without master edition and no max supply
const { hash } = await sdk.nft.create({
protocol: 'SOLANA',
wallet,
name: 'NFT',
symbol: 'NFT',
uri: 'https://....',
amount: '100000',
})
Mint NFTs
Mint an additional amount of an existing token.
sdk.nft.mint(opts)
opts.protocol (string)(required) - blockchain protocol must be SOLANA.
opts.wallet (Wallet)(required) - wallet to sign the transaction with.
opts.token (string)(required) - token address to be minted. If this token is a master edition, this is the address of the master edition token that will be used to create copies (editions).
Solana NFTs use the Standard to add metadata information to regular SPL Tokens.
SPL stands for Solana Program Library, which is a collection of on-chain programs that interact with the Solana blockchain.
You can think of SPL Tokens as equivalent to Ethereum's ERC-20 tokens. The Metaplex protocol is responsible for adjoining extra data onto these ERC-20-like tokens, effectively making them NFTs. If their max supply is set to 1, then it can be seen as an ERC-721 token. For higher or unlimited supplies the NFT can be compared to an ERC-1155 token. But in the end, they're the same thing!
What do I need in order to mint an NFT?
A Cryptum API key is the only requirement to create your brand new NFT for Solana. However, you probably want to add images, titles, symbols, attributes, etc. to your token. This information should be hosted in a service like or , and not on the token itself.
For this example, we'll suppose you already managed to upload a JSON object to Pinata according to the Metaplex standard:
Field
Type
Description
name
string
Name of the asset.
symbol
string
Symbol of the asset.
uri
string
URI to the external JSON representing the asset
creators
array
public key of each creator
update_authority
string
public key of the metadata owner
primary_sale_happened
boolean
flag describing whether the primary sale of the token happened
seller_fee_basis_points
number
royalties percentage awarded to creators
description
string
Description of the asset.
image
string
URI pointing to asset image.
animation_url
string
URI pointing to asset animation.
external_url
string
URI pointing to an external url defining the asset, the game's main site, etc.
attributes
array
Array of attributes defining the characteristics of the asset.
Creating NFTs Programmatically with Cryptum SDK
Step 1
The first prerequisite you will need is the creation of an account and a Project (API Key) on Cryptum Dashboard.
Step 2
With a valid Cryptum API Key, you can then instantiate the SDK as follows:
name is the token name;
symbol is the token symbol;
uri is the metadata URI;
maxSupply is the maximum supply for this NFT (0 for unlimited; 1 for unique; 2 or more for multiple editions). Required if you want to create a master edition and copies with limited supply;
amount is the NFT amount to be first minted. Required only if maxSupply is 0 or undefined;
creators is an optional parameter which consists of an array of creator information;
royaltiesFee is an optional parameter which represents a fee in percentage;
collection is an optional collection address;
To create NFT without limited supply and master edition do this:
// Creating NFT without master edition and no max supply
const { hash } = await sdk.nft.create({
protocol: 'SOLANA',
wallet,
name: 'NFT',
symbol: 'NFT',
uri: 'https://....',
amount: '100000'
})
Minting NFTs
To mint more NFTs on Solana you have to pass the wallet with the token's mint authority, the token address, destination address and the amount.
The amount must be 1 or null if this NFT has a master edition.
