nostr-tools/nip21.ts

55 lines
1.4 KiB
TypeScript

import { AddressPointer, BECH32_REGEX, decode, EventPointer, ProfilePointer } from './nip19.ts'
/** Nostr URI regex, eg `nostr:npub1...` */
export const NOSTR_URI_REGEX: RegExp = new RegExp(`nostr:(${BECH32_REGEX.source})`)
/** Test whether the value is a Nostr URI. */
export function test(value: unknown): value is `nostr:${string}` {
return typeof value === 'string' && new RegExp(`^${NOSTR_URI_REGEX.source}$`).test(value)
}
/** Parsed Nostr URI data. */
export interface NostrURI {
/** Full URI including the `nostr:` protocol. */
uri: `nostr:${string}`
/** The bech32-encoded data (eg `npub1...`). */
value: string
/** Decoded bech32 string, according to NIP-19. */
decoded:
| {
type: 'nevent'
data: EventPointer
}
| {
type: 'nprofile'
data: ProfilePointer
}
| {
type: 'naddr'
data: AddressPointer
}
| {
type: 'npub'
data: string
}
| {
type: 'nsec'
data: Uint8Array
}
| {
type: 'note'
data: string
}
}
/** Parse and decode a Nostr URI. */
export function parse(uri: string): NostrURI {
const match = uri.match(new RegExp(`^${NOSTR_URI_REGEX.source}$`))
if (!match) throw new Error(`Invalid Nostr URI: ${uri}`)
return {
uri: match[0] as `nostr:${string}`,
value: match[1],
decoded: decode(match[1]),
}
}