typescript-sdk/src/jsonrpc.ts at a0e7f3658dc255af8c65558d6e4ce718b856c318 · advait/typescript-sdk · GitHub

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/**
 * JSON-RPC 2.0 type definitions for internal use.
 */

export type AnyMessage = AnyRequest | AnyResponse | AnyNotification;

export type AnyRequest = {
  jsonrpc: "2.0";
  id: string | number | null;
  method: string;
  params?: unknown;
};

export type AnyResponse = {
  jsonrpc: "2.0";
  id: string | number | null;
} & Result<unknown>;

export type AnyNotification = {
  jsonrpc: "2.0";
  method: string;
  params?: unknown;
};

export type Result<T> =
  | {
      result: T;
    }
  | {
      error: ErrorResponse;
    };

export type ErrorResponse = {
  code: number;
  message: string;
  data?: unknown;
};

export type RequestHandler = (
  method: string,
  params: unknown,
) => Promise<unknown>;
export type NotificationHandler = (
  method: string,
  params: unknown,
) => Promise<void>;