@metamask/snaps-sdk
Version:
A library containing the core functionality for building MetaMask Snaps
22 lines • 997 B
text/typescript
import type { Json, JsonRpcParams, JsonRpcRequest } from "@metamask/utils";
/**
* The `onRpcRequest` handler, which is called when a Snap receives a JSON-RPC
* request. This can be called from another Snap, or from a website, depending
* on the Snap's `endowment:rpc` permission.
*
* Note that using this handler requires the `endowment:rpc` permission.
*
* @param args - The request arguments.
* @param args.origin - The origin of the request. This can be the ID of another
* Snap, or the URL of a website.
* @param args.request - The JSON-RPC request sent to the snap. This includes
* the method name and parameters.
* @returns The response to the JSON-RPC request. This must be a
* JSON-serializable value. In order to return an error, throw a `SnapError`
* instead.
*/
export type OnRpcRequestHandler<Params extends JsonRpcParams = JsonRpcParams> = (args: {
origin: string;
request: JsonRpcRequest<Params>;
}) => Promise<Json>;
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