Scratch space for learning atproto app development
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1import { OAuthClient } from '@atproto/oauth-client-node'
2
3export interface BidirectionalResolver {
4 resolveDidToHandle(did: string): Promise<string | undefined>
5 resolveDidsToHandles(
6 dids: string[],
7 ): Promise<Record<string, string | undefined>>
8}
9
10export function createBidirectionalResolver({
11 identityResolver,
12}: OAuthClient): BidirectionalResolver {
13 return {
14 async resolveDidToHandle(did: string): Promise<string | undefined> {
15 try {
16 const { handle } = await identityResolver.resolve(did)
17 if (handle) return handle
18 } catch {
19 // Ignore
20 }
21 },
22
23 async resolveDidsToHandles(
24 dids: string[],
25 ): Promise<Record<string, string | undefined>> {
26 const uniqueDids = [...new Set(dids)]
27
28 return Object.fromEntries(
29 await Promise.all(
30 uniqueDids.map((did) =>
31 this.resolveDidToHandle(did).then((handle) => [did, handle]),
32 ),
33 ),
34 )
35 },
36 }
37}