1#![cfg_attr(not(feature = "std"), no_std)]23use nft_data_structs::{CollectionId, TokenId};4use sp_std::vec::Vec;5use sp_core::H160;67sp_api::decl_runtime_apis! {8 pub trait NftApi<CrossAccountId, AccountId> where9 CrossAccountId: pallet_common::account::CrossAccountId<AccountId>,10 {11 fn account_tokens(collection: CollectionId, account: CrossAccountId) -> Vec<TokenId>;12 fn token_exists(collection: CollectionId, token: TokenId) -> bool;1314 fn token_owner(collection: CollectionId, token: TokenId) -> CrossAccountId;15 fn const_metadata(collection: CollectionId, token: TokenId) -> Vec<u8>;16 fn variable_metadata(collection: CollectionId, token: TokenId) -> Vec<u8>;1718 fn collection_tokens(collection: CollectionId) -> u32;19 fn account_balance(collection: CollectionId, account: CrossAccountId) -> u32;20 fn balance(collection: CollectionId, account: CrossAccountId, token: TokenId) -> u128;21 fn allowance(22 collection: CollectionId,23 sender: CrossAccountId,24 spender: CrossAccountId,25 token: TokenId,26 ) -> u128;2728 29 fn eth_contract_code(account: H160) -> Option<Vec<u8>>;30 }31}