fix(data-store): return unique credentials for dataStoreORMGetVerifiableCredentialsByClaims (#1299)

fixes #1285

Co-authored-by: Mirko Mollik <[email protected]>

Author: cre8

packages/data-store/src/__tests__/data-store-orm.test.ts

@@ -261,7 +261,7 @@ describe('@veramo/data-store queries', () => {
 
   test('works with relations', async () => {
     const credentials = await makeAgent().dataStoreORMGetVerifiableCredentialsByClaims({})
-    expect(credentials.length).toBe(3)
+    expect(credentials.length).toBe(1)
     expect(credentials[0].verifiableCredential.id).toBe('vc1')
     const count = await makeAgent().dataStoreORMGetVerifiableCredentialsByClaimsCount({})
     expect(count).toBe(3)

packages/data-store/src/data-store-orm.ts

@@ -202,10 +202,17 @@ export class DataStoreORM implements IAgentPlugin {
     context: AuthorizedDIDContext,
   ): Promise<Array<UniqueVerifiableCredential>> {
     const claims = await (await this.claimsQuery(args, context)).getMany()
-    return claims.map((claim) => ({
-      hash: claim.credential.hash,
-      verifiableCredential: claim.credential.raw,
-    }))
+    return claims
+      .map((claim) => ({
+        hash: claim.credential.hash,
+        verifiableCredential: claim.credential.raw,
+      }))
+      .reduce((acc: UniqueVerifiableCredential[], current: UniqueVerifiableCredential) => {
+        if (!acc.some((item) => item.hash === current.hash)) {
+          acc.push(current)
+        }
+        return acc
+      }, [])
   }
 
   async dataStoreORMGetVerifiableCredentialsByClaimsCount(