54 lines
1.2 KiB
TypeScript
54 lines
1.2 KiB
TypeScript
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import {
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Filter,
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SimplePool,
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VerifiedEvent,
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kinds,
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validateEvent,
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verifyEvent
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} from 'nostr-tools'
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export class MetadataController {
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constructor() {}
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public findMetadata = async (hexKey: string) => {
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const mostPopularRelays = import.meta.env.VITE_MOST_POPULAR_RELAYS
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const hardcodedPopularRelays = (mostPopularRelays || '').split(' ')
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const specialMetadataRelay = 'wss://purplepag.es'
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const relays = [...hardcodedPopularRelays, specialMetadataRelay]
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const eventFilter: Filter = {
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kinds: [kinds.Metadata],
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authors: [hexKey]
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}
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const pool = new SimplePool()
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const events = await pool.querySync(relays, eventFilter).catch((err) => {
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console.error(err)
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return null
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})
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if (events && events.length) {
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events.sort((a, b) => b.created_at - a.created_at)
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for (const event of events) {
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if (validateEvent(event) && verifyEvent(event)) {
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return event
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}
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}
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}
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throw new Error('Mo metadata found.')
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}
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public extractProfileMetadataContent = (event: VerifiedEvent) => {
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try {
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return JSON.parse(event.content)
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} catch (error) {
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console.log('error in parsing metadata event content :>> ', error)
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return null
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}
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}
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}
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