ethers.js/lib.commonjs/providers/provider.d.ts
2023-06-06 22:42:28 -04:00

1131 lines
37 KiB
TypeScript

import type { AddressLike, NameResolver } from "../address/index.js";
import type { BigNumberish, EventEmitterable } from "../utils/index.js";
import type { Signature } from "../crypto/index.js";
import type { AccessList, AccessListish, TransactionLike } from "../transaction/index.js";
import type { ContractRunner } from "./contracts.js";
import type { Network } from "./network.js";
/**
* A **BlockTag** specifies a specific block.
*
* **numeric value** - specifies the block height, where
* the genesis block is block 0; many operations accept a negative
* value which indicates the block number should be deducted from
* the most recent block. A numeric value may be a ``number``, ``bigint``,
* or a decimal of hex string.
*
* **blockhash** - specifies a specific block by its blockhash; this allows
* potentially orphaned blocks to be specifed, without ambiguity, but many
* backends do not support this for some operations.
*/
export type BlockTag = BigNumberish | string;
import { BlockParams, LogParams, TransactionReceiptParams, TransactionResponseParams } from "./formatting.js";
/**
* A **FeeData** wraps all the fee-related values associated with
* the network.
*/
export declare class FeeData {
/**
* The gas price for legacy networks.
*/
readonly gasPrice: null | bigint;
/**
* The maximum fee to pay per gas.
*
* The base fee per gas is defined by the network and based on
* congestion, increasing the cost during times of heavy load
* and lowering when less busy.
*
* The actual fee per gas will be the base fee for the block
* and the priority fee, up to the max fee per gas.
*
* This will be ``null`` on legacy networks (i.e. [pre-EIP-1559](link-eip-1559))
*/
readonly maxFeePerGas: null | bigint;
/**
* The additional amout to pay per gas to encourage a validator
* to include the transaction.
*
* The purpose of this is to compensate the validator for the
* adjusted risk for including a given transaction.
*
* This will be ``null`` on legacy networks (i.e. [pre-EIP-1559](link-eip-1559))
*/
readonly maxPriorityFeePerGas: null | bigint;
/**
* Creates a new FeeData for %%gasPrice%%, %%maxFeePerGas%% and
* %%maxPriorityFeePerGas%%.
*/
constructor(gasPrice?: null | bigint, maxFeePerGas?: null | bigint, maxPriorityFeePerGas?: null | bigint);
/**
* Returns a JSON-friendly value.
*/
toJSON(): any;
}
/**
* A **TransactionRequest** is a transactions with potentially various
* properties not defined, or with less strict types for its values.
*
* This is used to pass to various operations, which will internally
* coerce any types and populate any necessary values.
*/
export interface TransactionRequest {
/**
* The transaction type.
*/
type?: null | number;
/**
* The target of the transaction.
*/
to?: null | AddressLike;
/**
* The sender of the transaction.
*/
from?: null | AddressLike;
/**
* The nonce of the transaction, used to prevent replay attacks.
*/
nonce?: null | number;
/**
* The maximum amount of gas to allow this transaction to consime.
*/
gasLimit?: null | BigNumberish;
/**
* The gas price to use for legacy transactions or transactions on
* legacy networks.
*
* Most of the time the ``max*FeePerGas`` is preferred.
*/
gasPrice?: null | BigNumberish;
/**
* The [[link-eip-1559]] maximum priority fee to pay per gas.
*/
maxPriorityFeePerGas?: null | BigNumberish;
/**
* The [[link-eip-1559]] maximum total fee to pay per gas. The actual
* value used is protocol enforced to be the block's base fee.
*/
maxFeePerGas?: null | BigNumberish;
/**
* The transaction data.
*/
data?: null | string;
/**
* The transaction value (in wei).
*/
value?: null | BigNumberish;
/**
* The chain ID for the network this transaction is valid on.
*/
chainId?: null | BigNumberish;
/**
* The [[link-eip-2930]] access list. Storage slots included in the access
* list are //warmed// by pre-loading them, so their initial cost to
* fetch is guaranteed, but then each additional access is cheaper.
*/
accessList?: null | AccessListish;
/**
* A custom object, which can be passed along for network-specific
* values.
*/
customData?: any;
/**
* When using ``call`` or ``estimateGas``, this allows a specific
* block to be queried. Many backends do not support this and when
* unsupported errors are silently squelched and ``"latest"`` is used.
*/
blockTag?: BlockTag;
/**
* When using ``call``, this enables CCIP-read, which permits the
* provider to be redirected to web-based content during execution,
* which is then further validated by the contract.
*
* There are potential security implications allowing CCIP-read, as
* it could be used to expose the IP address or user activity during
* the fetch to unexpected parties.
*/
enableCcipRead?: boolean;
}
/**
* A **PreparedTransactionRequest** is identical to a [[TransactionRequest]]
* except all the property types are strictly enforced.
*/
export interface PreparedTransactionRequest {
/**
* The transaction type.
*/
type?: number;
/**
* The target of the transaction.
*/
to?: AddressLike;
/**
* The sender of the transaction.
*/
from?: AddressLike;
/**
* The nonce of the transaction, used to prevent replay attacks.
*/
nonce?: number;
/**
* The maximum amount of gas to allow this transaction to consime.
*/
gasLimit?: bigint;
/**
* The gas price to use for legacy transactions or transactions on
* legacy networks.
*
* Most of the time the ``max*FeePerGas`` is preferred.
*/
gasPrice?: bigint;
/**
* The [[link-eip-1559]] maximum priority fee to pay per gas.
*/
maxPriorityFeePerGas?: bigint;
/**
* The [[link-eip-1559]] maximum total fee to pay per gas. The actual
* value used is protocol enforced to be the block's base fee.
*/
maxFeePerGas?: bigint;
/**
* The transaction data.
*/
data?: string;
/**
* The transaction value (in wei).
*/
value?: bigint;
/**
* The chain ID for the network this transaction is valid on.
*/
chainId?: bigint;
/**
* The [[link-eip-2930]] access list. Storage slots included in the access
* list are //warmed// by pre-loading them, so their initial cost to
* fetch is guaranteed, but then each additional access is cheaper.
*/
accessList?: AccessList;
/**
* A custom object, which can be passed along for network-specific
* values.
*/
customData?: any;
/**
* When using ``call`` or ``estimateGas``, this allows a specific
* block to be queried. Many backends do not support this and when
* unsupported errors are silently squelched and ``"latest"`` is used.
*/
blockTag?: BlockTag;
/**
* When using ``call``, this enables CCIP-read, which permits the
* provider to be redirected to web-based content during execution,
* which is then further validated by the contract.
*
* There are potential security implications allowing CCIP-read, as
* it could be used to expose the IP address or user activity during
* the fetch to unexpected parties.
*/
enableCcipRead?: boolean;
}
/**
* Returns a copy of %%req%% with all properties coerced to their strict
* types.
*/
export declare function copyRequest(req: TransactionRequest): PreparedTransactionRequest;
/**
* An Interface to indicate a [[Block]] has been included in the
* blockchain. This asserts a Type Guard that necessary properties
* are non-null.
*
* Before a block is included, it is a //pending// block.
*/
export interface MinedBlock extends Block {
/**
* The block number also known as the block height.
*/
readonly number: number;
/**
* The block hash.
*/
readonly hash: string;
/**
* The block timestamp, in seconds from epoch.
*/
readonly timestamp: number;
/**
* The block date, created from the [[timestamp]].
*/
readonly date: Date;
/**
* The miner of the block, also known as the ``author`` or
* block ``producer``.
*/
readonly miner: string;
}
/**
* A **Block** represents the data associated with a full block on
* Ethereum.
*/
export declare class Block implements BlockParams, Iterable<string> {
#private;
/**
* The provider connected to the block used to fetch additional details
* if necessary.
*/
readonly provider: Provider;
/**
* The block number, sometimes called the block height. This is a
* sequential number that is one higher than the parent block.
*/
readonly number: number;
/**
* The block hash.
*
* This hash includes all properties, so can be safely used to identify
* an exact set of block properties.
*/
readonly hash: null | string;
/**
* The timestamp for this block, which is the number of seconds since
* epoch that this block was included.
*/
readonly timestamp: number;
/**
* The block hash of the parent block.
*/
readonly parentHash: string;
/**
* The nonce.
*
* On legacy networks, this is the random number inserted which
* permitted the difficulty target to be reached.
*/
readonly nonce: string;
/**
* The difficulty target.
*
* On legacy networks, this is the proof-of-work target required
* for a block to meet the protocol rules to be included.
*
* On modern networks, this is a random number arrived at using
* randao. @TODO: Find links?
*/
readonly difficulty: bigint;
/**
* The total gas limit for this block.
*/
readonly gasLimit: bigint;
/**
* The total gas used in this block.
*/
readonly gasUsed: bigint;
/**
* The miner coinbase address, wihch receives any subsidies for
* including this block.
*/
readonly miner: string;
/**
* Any extra data the validator wished to include.
*/
readonly extraData: string;
/**
* The base fee per gas that all transactions in this block were
* charged.
*
* This adjusts after each block, depending on how congested the network
* is.
*/
readonly baseFeePerGas: null | bigint;
/**
* Create a new **Block** object.
*
* This should generally not be necessary as the unless implementing a
* low-level library.
*/
constructor(block: BlockParams, provider: Provider);
/**
* Returns the list of transaction hashes.
*/
get transactions(): ReadonlyArray<string>;
/**
* Returns the complete transactions for blocks which
* prefetched them, by passing ``true`` to %%prefetchTxs%%
* into [[Provider-getBlock]].
*/
get prefetchedTransactions(): Array<TransactionResponse>;
/**
* Returns a JSON-friendly value.
*/
toJSON(): any;
[Symbol.iterator](): Iterator<string>;
/**
* The number of transactions in this block.
*/
get length(): number;
/**
* The [[link-js-date]] this block was included at.
*/
get date(): null | Date;
/**
* Get the transaction at %%indexe%% within this block.
*/
getTransaction(indexOrHash: number | string): Promise<TransactionResponse>;
/**
* If a **Block** was fetched with a request to include the transactions
* this will allow synchronous access to those transactions.
*
* If the transactions were not prefetched, this will throw.
*/
getPrefetchedTransaction(indexOrHash: number | string): TransactionResponse;
/**
* Returns true if this block been mined. This provides a type guard
* for all properties on a [[MinedBlock]].
*/
isMined(): this is MinedBlock;
/**
* Returns true if this block is an [[link-eip-2930]] block.
*/
isLondon(): this is (Block & {
baseFeePerGas: bigint;
});
/**
* @_ignore:
*/
orphanedEvent(): OrphanFilter;
}
/**
* A **Log** in Ethereum represents an event that has been included in a
* transaction using the ``LOG*`` opcodes, which are most commonly used by
* Solidity's emit for announcing events.
*/
export declare class Log implements LogParams {
/**
* The provider connected to the log used to fetch additional details
* if necessary.
*/
readonly provider: Provider;
/**
* The transaction hash of the transaction this log occurred in. Use the
* [[Log-getTransaction]] to get the [[TransactionResponse]].
*/
readonly transactionHash: string;
/**
* The block hash of the block this log occurred in. Use the
* [[Log-getBlock]] to get the [[Block]].
*/
readonly blockHash: string;
/**
* The block number of the block this log occurred in. It is preferred
* to use the [[Block-hash]] when fetching the related [[Block]],
* since in the case of an orphaned block, the block at that height may
* have changed.
*/
readonly blockNumber: number;
/**
* If the **Log** represents a block that was removed due to an orphaned
* block, this will be true.
*
* This can only happen within an orphan event listener.
*/
readonly removed: boolean;
/**
* The address of the contract that emitted this log.
*/
readonly address: string;
/**
* The data included in this log when it was emitted.
*/
readonly data: string;
/**
* The indexed topics included in this log when it was emitted.
*
* All topics are included in the bloom filters, so they can be
* efficiently filtered using the [[Provider-getLogs]] method.
*/
readonly topics: ReadonlyArray<string>;
/**
* The index within the block this log occurred at. This is generally
* not useful to developers, but can be used with the various roots
* to proof inclusion within a block.
*/
readonly index: number;
/**
* The index within the transaction of this log.
*/
readonly transactionIndex: number;
/**
* @_ignore:
*/
constructor(log: LogParams, provider: Provider);
/**
* Returns a JSON-compatible object.
*/
toJSON(): any;
/**
* Returns the block that this log occurred in.
*/
getBlock(): Promise<Block>;
/**
* Returns the transaction that this log occurred in.
*/
getTransaction(): Promise<TransactionResponse>;
/**
* Returns the transaction receipt fot the transaction that this
* log occurred in.
*/
getTransactionReceipt(): Promise<TransactionReceipt>;
/**
* @_ignore:
*/
removedEvent(): OrphanFilter;
}
/**
* A **TransactionReceipt** includes additional information about a
* transaction that is only available after it has been mined.
*/
export declare class TransactionReceipt implements TransactionReceiptParams, Iterable<Log> {
#private;
/**
* The provider connected to the log used to fetch additional details
* if necessary.
*/
readonly provider: Provider;
/**
* The address the transaction was send to.
*/
readonly to: null | string;
/**
* The sender of the transaction.
*/
readonly from: string;
/**
* The address of the contract if the transaction was directly
* responsible for deploying one.
*
* This is non-null **only** if the ``to`` is empty and the ``data``
* was successfully executed as initcode.
*/
readonly contractAddress: null | string;
/**
* The transaction hash.
*/
readonly hash: string;
/**
* The index of this transaction within the block transactions.
*/
readonly index: number;
/**
* The block hash of the [[Block]] this transaction was included in.
*/
readonly blockHash: string;
/**
* The block number of the [[Block]] this transaction was included in.
*/
readonly blockNumber: number;
/**
* The bloom filter bytes that represent all logs that occurred within
* this transaction. This is generally not useful for most developers,
* but can be used to validate the included logs.
*/
readonly logsBloom: string;
/**
* The actual amount of gas used by this transaction.
*
* When creating a transaction, the amount of gas that will be used can
* only be approximated, but the sender must pay the gas fee for the
* entire gas limit. After the transaction, the difference is refunded.
*/
readonly gasUsed: bigint;
/**
* The amount of gas used by all transactions within the block for this
* and all transactions with a lower ``index``.
*
* This is generally not useful for developers but can be used to
* validate certain aspects of execution.
*/
readonly cumulativeGasUsed: bigint;
/**
* The actual gas price used during execution.
*
* Due to the complexity of [[link-eip-1559]] this value can only
* be caluclated after the transaction has been mined, snce the base
* fee is protocol-enforced.
*/
readonly gasPrice: bigint;
/**
* The [[link-eip-2718]] transaction type.
*/
readonly type: number;
/**
* The status of this transaction, indicating success (i.e. ``1``) or
* a revert (i.e. ``0``).
*
* This is available in post-byzantium blocks, but some backends may
* backfill this value.
*/
readonly status: null | number;
/**
* The root hash of this transaction.
*
* This is no present and was only included in pre-byzantium blocks, but
* could be used to validate certain parts of the receipt.
*/
readonly root: null | string;
/**
* @_ignore:
*/
constructor(tx: TransactionReceiptParams, provider: Provider);
/**
* The logs for this transaction.
*/
get logs(): ReadonlyArray<Log>;
/**
* Returns a JSON-compatible representation.
*/
toJSON(): any;
/**
* @_ignore:
*/
get length(): number;
[Symbol.iterator](): Iterator<Log>;
/**
* The total fee for this transaction, in wei.
*/
get fee(): bigint;
/**
* Resolves to the block this transaction occurred in.
*/
getBlock(): Promise<Block>;
/**
* Resolves to the transaction this transaction occurred in.
*/
getTransaction(): Promise<TransactionResponse>;
/**
* Resolves to the return value of the execution of this transaction.
*
* Support for this feature is limited, as it requires an archive node
* with the ``debug_`` or ``trace_`` API enabled.
*/
getResult(): Promise<string>;
/**
* Resolves to the number of confirmations this transaction has.
*/
confirmations(): Promise<number>;
/**
* @_ignore:
*/
removedEvent(): OrphanFilter;
/**
* @_ignore:
*/
reorderedEvent(other?: TransactionResponse): OrphanFilter;
}
/**
* A **MinedTransactionResponse** is an interface representing a
* transaction which has been mined and allows for a type guard for its
* property values being defined.
*/
export interface MinedTransactionResponse extends TransactionResponse {
/**
* The block number this transaction occurred in.
*/
blockNumber: number;
/**
* The block hash this transaction occurred in.
*/
blockHash: string;
/**
* The date this transaction occurred on.
*/
date: Date;
}
/**
* A **TransactionResponse** includes all properties about a transaction
* that was sent to the network, which may or may not be included in a
* block.
*
* The [[TransactionResponse-isMined]] can be used to check if the
* transaction has been mined as well as type guard that the otherwise
* possibly ``null`` properties are defined.
*/
export declare class TransactionResponse implements TransactionLike<string>, TransactionResponseParams {
#private;
/**
* The provider this is connected to, which will influence how its
* methods will resolve its async inspection methods.
*/
readonly provider: Provider;
/**
* The block number of the block that this transaction was included in.
*
* This is ``null`` for pending transactions.
*/
readonly blockNumber: null | number;
/**
* The blockHash of the block that this transaction was included in.
*
* This is ``null`` for pending transactions.
*/
readonly blockHash: null | string;
/**
* The index within the block that this transaction resides at.
*/
readonly index: number;
/**
* The transaction hash.
*/
readonly hash: string;
/**
* The [[link-eip-2718]] transaction envelope type. This is
* ``0`` for legacy transactions types.
*/
readonly type: number;
/**
* The receiver of this transaction.
*
* If ``null``, then the transaction is an initcode transaction.
* This means the result of executing the [[data]] will be deployed
* as a new contract on chain (assuming it does not revert) and the
* address may be computed using [[getCreateAddress]].
*/
readonly to: null | string;
/**
* The sender of this transaction. It is implicitly computed
* from the transaction pre-image hash (as the digest) and the
* [[signature]] using ecrecover.
*/
readonly from: string;
/**
* The nonce, which is used to prevent replay attacks and offer
* a method to ensure transactions from a given sender are explicitly
* ordered.
*
* When sending a transaction, this must be equal to the number of
* transactions ever sent by [[from]].
*/
readonly nonce: number;
/**
* The maximum units of gas this transaction can consume. If execution
* exceeds this, the entries transaction is reverted and the sender
* is charged for the full amount, despite not state changes being made.
*/
readonly gasLimit: bigint;
/**
* The gas price can have various values, depending on the network.
*
* In modern networks, for transactions that are included this is
* the //effective gas price// (the fee per gas that was actually
* charged), while for transactions that have not been included yet
* is the [[maxFeePerGas]].
*
* For legacy transactions, or transactions on legacy networks, this
* is the fee that will be charged per unit of gas the transaction
* consumes.
*/
readonly gasPrice: bigint;
/**
* The maximum priority fee (per unit of gas) to allow a
* validator to charge the sender. This is inclusive of the
* [[maxFeeFeePerGas]].
*/
readonly maxPriorityFeePerGas: null | bigint;
/**
* The maximum fee (per unit of gas) to allow this transaction
* to charge the sender.
*/
readonly maxFeePerGas: null | bigint;
/**
* The data.
*/
readonly data: string;
/**
* The value, in wei. Use [[formatEther]] to format this value
* as ether.
*/
readonly value: bigint;
/**
* The chain ID.
*/
readonly chainId: bigint;
/**
* The signature.
*/
readonly signature: Signature;
/**
* The [[link-eip-2930]] access list for transaction types that
* support it, otherwise ``null``.
*/
readonly accessList: null | AccessList;
/**
* @_ignore:
*/
constructor(tx: TransactionResponseParams, provider: Provider);
/**
* Returns a JSON-compatible representation of this transaction.
*/
toJSON(): any;
/**
* Resolves to the Block that this transaction was included in.
*
* This will return null if the transaction has not been included yet.
*/
getBlock(): Promise<null | Block>;
/**
* Resolves to this transaction being re-requested from the
* provider. This can be used if you have an unmined transaction
* and wish to get an up-to-date populated instance.
*/
getTransaction(): Promise<null | TransactionResponse>;
/**
* Resolve to the number of confirmations this transaction has.
*/
confirmations(): Promise<number>;
/**
* Resolves once this transaction has been mined and has
* %%confirms%% blocks including it (default: ``1``) with an
* optional %%timeout%%.
*
* This can resolve to ``null`` only if %%confirms%% is ``0``
* and the transaction has not been mined, otherwise this will
* wait until enough confirmations have completed.
*/
wait(_confirms?: number, _timeout?: number): Promise<null | TransactionReceipt>;
/**
* Returns ``true`` if this transaction has been included.
*
* This is effective only as of the time the TransactionResponse
* was instantiated. To get up-to-date information, use
* [[getTransaction]].
*
* This provides a Type Guard that this transaction will have
* non-null property values for properties that are null for
* unmined transactions.
*/
isMined(): this is MinedTransactionResponse;
/**
* Returns true if the transaction is a legacy (i.e. ``type == 0``)
* transaction.
*
* This provides a Type Guard that this transaction will have
* the ``null``-ness for hardfork-specific properties set correctly.
*/
isLegacy(): this is (TransactionResponse & {
accessList: null;
maxFeePerGas: null;
maxPriorityFeePerGas: null;
});
/**
* Returns true if the transaction is a Berlin (i.e. ``type == 1``)
* transaction. See [[link-eip-2070]].
*
* This provides a Type Guard that this transaction will have
* the ``null``-ness for hardfork-specific properties set correctly.
*/
isBerlin(): this is (TransactionResponse & {
accessList: AccessList;
maxFeePerGas: null;
maxPriorityFeePerGas: null;
});
/**
* Returns true if the transaction is a London (i.e. ``type == 2``)
* transaction. See [[link-eip-1559]].
*
* This provides a Type Guard that this transaction will have
* the ``null``-ness for hardfork-specific properties set correctly.
*/
isLondon(): this is (TransactionResponse & {
accessList: AccessList;
maxFeePerGas: bigint;
maxPriorityFeePerGas: bigint;
});
/**
* Returns a filter which can be used to listen for orphan events
* that evict this transaction.
*/
removedEvent(): OrphanFilter;
/**
* Returns a filter which can be used to listen for orphan events
* that re-order this event against %%other%%.
*/
reorderedEvent(other?: TransactionResponse): OrphanFilter;
/**
* Returns a new TransactionResponse instance which has the ability to
* detect (and throw an error) if the transaction is replaced, which
* will begin scanning at %%startBlock%%.
*
* This should generally not be used by developers and is intended
* primarily for internal use. Setting an incorrect %%startBlock%% can
* have devastating performance consequences if used incorrectly.
*/
replaceableTransaction(startBlock: number): TransactionResponse;
}
/**
* An Orphan Filter allows detecting when an orphan block has
* resulted in dropping a block or transaction or has resulted
* in transactions changing order.
*
* Not currently fully supported.
*/
export type OrphanFilter = {
orphan: "drop-block";
hash: string;
number: number;
} | {
orphan: "drop-transaction";
tx: {
hash: string;
blockHash: string;
blockNumber: number;
};
other?: {
hash: string;
blockHash: string;
blockNumber: number;
};
} | {
orphan: "reorder-transaction";
tx: {
hash: string;
blockHash: string;
blockNumber: number;
};
other?: {
hash: string;
blockHash: string;
blockNumber: number;
};
} | {
orphan: "drop-log";
log: {
transactionHash: string;
blockHash: string;
blockNumber: number;
address: string;
data: string;
topics: ReadonlyArray<string>;
index: number;
};
};
/**
* A **TopicFilter** provides a struture to define bloom-filter
* queries.
*
* Each field that is ``null`` matches **any** value, a field that is
* a ``string`` must match exactly that value and and ``array`` is
* effectively an ``OR``-ed set, where any one of those values must
* match.
*/
export type TopicFilter = Array<null | string | Array<string>>;
/**
* An **EventFilter** allows efficiently filtering logs (also known as
* events) using bloom filters included within blocks.
*/
export interface EventFilter {
address?: AddressLike | Array<AddressLike>;
topics?: TopicFilter;
}
/**
* A **Filter** allows searching a specific range of blocks for mathcing
* logs.
*/
export interface Filter extends EventFilter {
/**
* The start block for the filter (inclusive).
*/
fromBlock?: BlockTag;
/**
* The end block for the filter (inclusive).
*/
toBlock?: BlockTag;
}
/**
* A **FilterByBlockHash** allows searching a specific block for mathcing
* logs.
*/
export interface FilterByBlockHash extends EventFilter {
/**
* The blockhash of the specific block for the filter.
*/
blockHash?: string;
}
/**
* A **ProviderEvent** provides the types of events that can be subscribed
* to on a [[Provider]].
*
* Each provider may include additional possible events it supports, but
* the most commonly supported are:
*
* **``"block"``** - calls the listener with the current block number on each
* new block.
*
* **``"error"``** - calls the listener on each async error that occurs during
* the event loop, with the error.
*
* **``"debug"``** - calls the listener on debug events, which can be used to
* troubleshoot network errors, provider problems, etc.
*
* **``transaction hash``** - calls the listener on each block after the
* transaction has been mined; generally ``.once`` is more appropriate for
* this event.
*
* **``Array``** - calls the listener on each log that matches the filter.
*
* [[EventFilter]] - calls the listener with each matching log
*/
export type ProviderEvent = string | Array<string | Array<string>> | EventFilter | OrphanFilter;
/**
* A **Provider** is the primary method to interact with the read-only
* content on Ethereum.
*
* It allows access to details about accounts, blocks and transactions
* and the ability to query event logs and simulate contract execution.
*
* Account data includes the [balance](getBalance),
* [transaction count](getTransactionCount), [code](getCode) and
* [state trie storage](getStorage).
*
* Simulating execution can be used to [call](call),
* [estimate gas](estimateGas) and
* [get transaction results](getTransactionResult).
*
* The [[broadcastTransaction]] is the only method which allows updating
* the blockchain, but it is usually accessed by a [[Signer]], since a
* private key must be used to sign the transaction before it can be
* broadcast.
*/
export interface Provider extends ContractRunner, EventEmitterable<ProviderEvent>, NameResolver {
/**
* The provider iteself.
*
* This is part of the necessary API for executing a contract, as
* it provides a common property on any [[ContractRunner]] that
* can be used to access the read-only portion of the runner.
*/
provider: this;
/**
* Shutdown any resources this provider is using. No additional
* calls should be made to this provider after calling this.
*/
destroy(): void;
/**
* Get the current block number.
*/
getBlockNumber(): Promise<number>;
/**
* Get the connected [[Network]].
*/
getNetwork(): Promise<Network>;
/**
* Get the best guess at the recommended [[FeeData]].
*/
getFeeData(): Promise<FeeData>;
/**
* Get the account balance (in wei) of %%address%%. If %%blockTag%%
* is specified and the node supports archive access for that
* %%blockTag%%, the balance is as of that [[BlockTag]].
*
* @note On nodes without archive access enabled, the %%blockTag%% may be
* **silently ignored** by the node, which may cause issues if relied on.
*/
getBalance(address: AddressLike, blockTag?: BlockTag): Promise<bigint>;
/**
* Get the number of transactions ever sent for %%address%%, which
* is used as the ``nonce`` when sending a transaction. If
* %%blockTag%% is specified and the node supports archive access
* for that %%blockTag%%, the transaction count is as of that
* [[BlockTag]].
*
* @note On nodes without archive access enabled, the %%blockTag%% may be
* **silently ignored** by the node, which may cause issues if relied on.
*/
getTransactionCount(address: AddressLike, blockTag?: BlockTag): Promise<number>;
/**
* Get the bytecode for %%address%%.
*
* @note On nodes without archive access enabled, the %%blockTag%% may be
* **silently ignored** by the node, which may cause issues if relied on.
*/
getCode(address: AddressLike, blockTag?: BlockTag): Promise<string>;
/**
* Get the storage slot value for %%address%% at slot %%position%%.
*
* @note On nodes without archive access enabled, the %%blockTag%% may be
* **silently ignored** by the node, which may cause issues if relied on.
*/
getStorage(address: AddressLike, position: BigNumberish, blockTag?: BlockTag): Promise<string>;
/**
* Estimates the amount of gas required to executre %%tx%%.
*/
estimateGas(tx: TransactionRequest): Promise<bigint>;
/**
* Simulate the execution of %%tx%%. If the call reverts, it will
* throw a [[CallExceptionError]] which includes the revert data.
*/
call(tx: TransactionRequest): Promise<string>;
/**
* Broadcasts the %%signedTx%% to the network, adding it to the
* memory pool of any node for which the transaction meets the
* rebroadcast requirements.
*/
broadcastTransaction(signedTx: string): Promise<TransactionResponse>;
/**
* Resolves to the block for %%blockHashOrBlockTag%%.
*
* If %%prefetchTxs%%, and the backend supports including transactions
* with block requests, all transactions will be included and the
* [[Block]] object will not need to make remote calls for getting
* transactions.
*/
getBlock(blockHashOrBlockTag: BlockTag | string, prefetchTxs?: boolean): Promise<null | Block>;
/**
* Resolves to the transaction for %%hash%%.
*
* If the transaction is unknown or on pruning nodes which
* discard old transactions this resolves to ``null``.
*/
getTransaction(hash: string): Promise<null | TransactionResponse>;
/**
* Resolves to the transaction receipt for %%hash%%, if mined.
*
* If the transaction has not been mined, is unknown or on
* pruning nodes which discard old transactions this resolves to
* ``null``.
*/
getTransactionReceipt(hash: string): Promise<null | TransactionReceipt>;
/**
* Resolves to the result returned by the executions of %%hash%%.
*
* This is only supported on nodes with archive access and with
* the necessary debug APIs enabled.
*/
getTransactionResult(hash: string): Promise<null | string>;
/**
* Resolves to the list of Logs that match %%filter%%
*/
getLogs(filter: Filter | FilterByBlockHash): Promise<Array<Log>>;
/**
* Resolves to the address configured for the %%ensName%% or
* ``null`` if unconfigured.
*/
resolveName(ensName: string): Promise<null | string>;
/**
* Resolves to the ENS name associated for the %%address%% or
* ``null`` if the //primary name// is not configured.
*
* Users must perform additional steps to configure a //primary name//,
* which is not currently common.
*/
lookupAddress(address: string): Promise<null | string>;
/**
* Waits until the transaction %%hash%% is mined and has %%confirms%%
* confirmations.
*/
waitForTransaction(hash: string, confirms?: number, timeout?: number): Promise<null | TransactionReceipt>;
/**
* Resolves to the block at %%blockTag%% once it has been mined.
*
* This can be useful for waiting some number of blocks by using
* the ``currentBlockNumber + N``.
*/
waitForBlock(blockTag?: BlockTag): Promise<Block>;
}
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