Minting

main.ts

export function mint_to(owner_id: AccountId, metadata_uri: MetadataUri): u64 {
  const tokenId = storage.getPrimitive<u64>(TOTAL_SUPPLY, 1)

  assert(tokenId <= MAX_SUPPLY, ERROR_MAXIMUM_TOKEN_LIMIT_REACHED)

  tokenToOwner.set(tokenId, owner_id)
  tokenToMetadata.set(tokenId, metadata_uri)

  storage.set<u64>(TOTAL_SUPPLY, tokenId + 1)

  const owner = storage.get<string>("contract_owner")
  assert(owner != null, ERROR_OWNER_ID_DOES_NOT_MATCH_EXPECTATION)

  return tokenId
}