@shocknet/clink-sdk/build/noffer.js

sdk client for clink

import { nip44, getPublicKey, finalizeEvent } from "nostr-tools";
const { getConversationKey, decrypt, encrypt } = nip44;
export const SendNofferRequest = async (pool, privateKey, relays, toPubKey, data, timeoutSeconds = 30) => {
    const publicKey = getPublicKey(privateKey);
    const content = encrypt(JSON.stringify(data), getConversationKey(privateKey, toPubKey));
    const event = newNofferEvent(content, publicKey, toPubKey);
    const signed = finalizeEvent(event, privateKey);
    await Promise.all(pool.publish(relays, signed));
    return new Promise((res, rej) => {
        let closer = { close: () => { } };
        const timeout = setTimeout(() => {
            closer.close();
            rej("failed to get noffer response in time");
        }, timeoutSeconds * 1000);
        closer = pool.subscribeMany(relays, [newNofferFilter(publicKey, signed.id)], {
            onevent: async (e) => {
                clearTimeout(timeout);
                const content = decrypt(e.content, getConversationKey(privateKey, toPubKey));
                res(JSON.parse(content));
            }
        });
    });
};
export const newNofferEvent = (content, fromPub, toPub) => ({
    content,
    created_at: Math.floor(Date.now() / 1000),
    kind: 21001,
    pubkey: fromPub,
    tags: [['p', toPub], ['clink_version', '1']]
});
export const newNofferFilter = (publicKey, eventId) => ({
    since: Math.floor(Date.now() / 1000) - 1,
    kinds: [21001],
    '#p': [publicKey],
    '#e': [eventId]
});
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