@metamask/snaps-sdk/dist/internals/helpers.d.mts

A library containing the core functionality for building MetaMask Snaps

import type { JsonRpcParams, JsonRpcRequest } from "@metamask/utils";
/**
 * Get the enum values as union type. This allows using both the enum string
 * values and the enum itself as values.
 *
 * Note: This only works for string enums.
 *
 * @example
 * enum Foo {
 *   Bar = 'bar',
 *   Baz = 'baz',
 * }
 *
 * // FooValue is 'bar' | 'baz'
 * type FooValue = EnumToUnion<Foo>;
 *
 * const foo: FooValue = Foo.Bar; // Works
 * const foo: FooValue = 'bar'; // Also works
 * @internal
 */
export type EnumToUnion<Type extends string> = `${Type}`;
/**
 * Get a JSON-RPC method with the given name and parameters. If params extends
 * `never`, then the `params` property is omitted.
 *
 * @example
 * // MyMethod is { method: 'my_method', params: { foo: string } }
 * type MyMethod = Method<'my_method', { foo: string }>;
 * @internal
 */
export type Method<MethodName extends string, Params extends JsonRpcParams> = Partial<JsonRpcRequest> & Params extends never ? {
    method: MethodName;
} : {
    method: MethodName;
    params: Params;
};
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