@nostr-dev-kit/ndk/src/signers/nip46/backend/ping.ts

NDK - Nostr Development Kit. Includes AI Guardrails to catch common mistakes during development.

import type { IEventHandlingStrategy, NDKNip46Backend } from "./index.js";

/**
 * "ping" method handler.
 */
export default class PingEventHandlingStrategy implements IEventHandlingStrategy {
    async handle(
        backend: NDKNip46Backend,
        id: string,
        remotePubkey: string,
        _params: string[],
    ): Promise<string | undefined> {
        const debug = backend.debug.extend("ping");

        debug(`ping request from ${remotePubkey}`);

        if (await backend.pubkeyAllowed({ id, pubkey: remotePubkey, method: "ping" })) {
            debug(`connection request from ${remotePubkey} allowed`);
            return "pong";
        }
        debug(`connection request from ${remotePubkey} rejected`);

        return undefined;
    }
}