@metamask/providers
Version:
A JavaScript Ethereum provider that connects to the wallet over a stream
55 lines • 3.02 kB
text/typescript
import { type Duplex } from "readable-stream";
import type { CAIP294WalletData } from "./CAIP294.mjs";
import type { MetaMaskInpageProviderOptions } from "./MetaMaskInpageProvider.mjs";
import { MetaMaskInpageProvider } from "./MetaMaskInpageProvider.mjs";
import type { BaseProviderInfo } from "./types.mjs";
type InitializeProviderOptions = {
/**
* The stream used to connect to the wallet.
*/
connectionStream: Duplex;
/**
* The EIP-6963 provider info / CAIP-294 wallet data that should be announced if set.
*/
providerInfo?: BaseProviderInfo;
/**
* Whether the provider should be set as window.ethereum.
*/
shouldSetOnWindow?: boolean;
/**
* Whether the window.web3 shim should be set.
*/
shouldShimWeb3?: boolean;
} & MetaMaskInpageProviderOptions;
/**
* Initializes a MetaMaskInpageProvider and (optionally) assigns it as window.ethereum.
*
* @param options - An options bag.
* @param options.connectionStream - A Node.js stream.
* @param options.maxEventListeners - The maximum number of event listeners.
* @param options.providerInfo - The EIP-6963 provider info / CAIP-294 wallet data that should be announced if set.
* @param options.shouldSendMetadata - Whether the provider should send page metadata.
* @param options.shouldSetOnWindow - Whether the provider should be set as window.ethereum.
* @param options.shouldShimWeb3 - Whether a window.web3 shim should be injected.
* @param options.logger - The logging API to use. Default: `console`.
* @returns The initialized provider (whether set or not).
*/
export declare function initializeProvider({ connectionStream, logger, maxEventListeners, providerInfo, shouldSendMetadata, shouldSetOnWindow, shouldShimWeb3, }: InitializeProviderOptions): MetaMaskInpageProvider;
/**
* Sets the given provider instance as window.ethereum and dispatches the
* 'ethereum#initialized' event on window.
*
* @param providerInstance - The provider instance.
*/
export declare function setGlobalProvider(providerInstance: MetaMaskInpageProvider): void;
/**
* Announces [CAIP-294](https://github.com/ChainAgnostic/CAIPs/blob/bc4942857a8e04593ed92f7dc66653577a1c4435/CAIPs/caip-294.md) wallet data according to build type and browser.
* Until released to stable, `extensionId` is only set in the `metamask_getProviderState` result if the build type is `flask`.
* `extensionId` is included if browser is chromium based because it is only useable by browsers that support [externally_connectable](https://developer.chrome.com/docs/extensions/reference/manifest/externally-connectable).
*
* @param provider - The provider {@link MetaMaskInpageProvider} used for retrieving `extensionId`.
* @param providerInfo - The provider info {@link BaseProviderInfo} that should be announced if set.
*/
export declare function announceCaip294WalletData(provider: MetaMaskInpageProvider, providerInfo: CAIP294WalletData): Promise<void>;
export {};
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