@solana/sysvars/dist/types/recent-blockhashes.d.ts

An abstraction layer over signing messages and transactions in Solana

import { type FetchAccountConfig } from '@solana/accounts';
import { type VariableSizeCodec, type VariableSizeDecoder, type VariableSizeEncoder } from '@solana/codecs';
import type { GetAccountInfoApi } from '@solana/rpc-api';
import type { Rpc } from '@solana/rpc-spec';
import { type Blockhash, type Lamports } from '@solana/rpc-types';
type FeeCalculator = Readonly<{
    /**
     * The current cost of a signature.
     *
     * This amount may increase/decrease over time based on cluster processing load
     */
    lamportsPerSignature: Lamports;
}>;
type Entry = Readonly<{
    blockhash: Blockhash;
    feeCalculator: FeeCalculator;
}>;
/**
 * Information about recent blocks and their fee calculators.
 *
 * @deprecated Transaction fees should be determined with the
 * {@link GetFeeForMessageApi.getFeeForMessage} RPC method. For additional context see the
 * [Comprehensive Compute Fees proposal](https://docs.anza.xyz/proposals/comprehensive-compute-fees/).
 */
export type SysvarRecentBlockhashes = Entry[];
/**
 * Returns an encoder that you can use to encode a {@link SysvarRecentBlockhashes} to a byte array
 * representing the `RecentBlockhashes` sysvar's account data.
 *
 * @deprecated Transaction fees should be determined with the
 * {@link GetFeeForMessageApi.getFeeForMessage} RPC method. For additional context see the
 * [Comprehensive Compute Fees proposal](https://docs.anza.xyz/proposals/comprehensive-compute-fees/).
 */
export declare function getSysvarRecentBlockhashesEncoder(): VariableSizeEncoder<SysvarRecentBlockhashes>;
/**
 * Returns a decoder that you can use to decode a byte array representing the `RecentBlockhashes`
 * sysvar's account data to a {@link SysvarRecentBlockhashes}.
 *
 * @deprecated Transaction fees should be determined with the
 * {@link GetFeeForMessageApi.getFeeForMessage} RPC method. For additional context see the
 * [Comprehensive Compute Fees proposal](https://docs.anza.xyz/proposals/comprehensive-compute-fees/).
 */
export declare function getSysvarRecentBlockhashesDecoder(): VariableSizeDecoder<SysvarRecentBlockhashes>;
/**
 * Returns a codec that you can use to encode from or decode to {@link SysvarRecentBlockhashes}
 *
 * @deprecated Transaction fees should be determined with the
 * {@link GetFeeForMessageApi.getFeeForMessage} RPC method. For additional context see the
 * [Comprehensive Compute Fees proposal](https://docs.anza.xyz/proposals/comprehensive-compute-fees/).
 *
 * @see {@link getSysvarRecentBlockhashesDecoder}
 * @see {@link getSysvarRecentBlockhashesEncoder}
 */
export declare function getSysvarRecentBlockhashesCodec(): VariableSizeCodec<SysvarRecentBlockhashes>;
/**
 * Fetches the `RecentBlockhashes` sysvar account using any RPC that supports the
 * {@link GetAccountInfoApi}.
 *
 * @deprecated Transaction fees should be determined with the
 * {@link GetFeeForMessageApi.getFeeForMessage} RPC method. For additional context see the
 * [Comprehensive Compute Fees proposal](https://docs.anza.xyz/proposals/comprehensive-compute-fees/).
 */
export declare function fetchSysvarRecentBlockhashes(rpc: Rpc<GetAccountInfoApi>, config?: FetchAccountConfig): Promise<SysvarRecentBlockhashes>;
export {};
//# sourceMappingURL=recent-blockhashes.d.ts.map