stacker.news/wallets/nwc/index.js

89 lines
2.2 KiB
JavaScript

import { Relay } from '@/lib/nostr'
import { parseNwcUrl } from '@/lib/url'
import { nwcSchema } from '@/lib/validate'
import { finalizeEvent, nip04 } from 'nostr-tools'
export const name = 'nwc'
export const fields = [
{
name: 'nwcUrl',
label: 'connection',
type: 'password',
optional: 'for sending',
clientOnly: true,
editable: false
},
{
name: 'nwcUrlRecv',
label: 'connection',
type: 'password',
optional: 'for receiving',
serverOnly: true,
editable: false
}
]
export const card = {
title: 'NWC',
subtitle: 'use Nostr Wallet Connect for payments',
badges: ['send & receive', 'budgetable']
}
export const fieldValidation = nwcSchema
export const walletType = 'NWC'
export const walletField = 'walletNWC'
export async function nwcCall ({ nwcUrl, method, params }, { logger, timeout } = {}) {
const { relayUrl, walletPubkey, secret } = parseNwcUrl(nwcUrl)
const relay = await Relay.connect(relayUrl, { timeout })
logger?.ok(`connected to ${relayUrl}`)
try {
const payload = { method, params }
const encrypted = await nip04.encrypt(secret, walletPubkey, JSON.stringify(payload))
const request = finalizeEvent({
kind: 23194,
created_at: Math.floor(Date.now() / 1000),
tags: [['p', walletPubkey]],
content: encrypted
}, secret)
await relay.publish(request, { timeout })
logger?.info(`published ${method} request`)
logger?.info('waiting for response ...')
const [response] = await relay.fetch([{
kinds: [23195],
authors: [walletPubkey],
'#e': [request.id]
}], { timeout })
if (!response) {
throw new Error('no response')
}
logger?.ok('response received')
const decrypted = await nip04.decrypt(secret, walletPubkey, response.content)
const content = JSON.parse(decrypted)
if (content.error) throw new Error(content.error.message)
if (content.result) return content.result
throw new Error('invalid response')
} finally {
relay?.close()
logger?.info(`closed connection to ${relayUrl}`)
}
}
export async function supportedMethods (nwcUrl, { logger, timeout } = {}) {
const result = await nwcCall({ nwcUrl, method: 'get_info' }, { logger, timeout })
return result.methods
}