public static void setCustomUserClaims()

in auth/src/main/java/com/google/firebase/quickstart/AuthSnippets.java [98:123]

• 12 lines of code
• 2 McCabe index (conditional complexity)

  public static void setCustomUserClaims(
      String uid) throws InterruptedException, ExecutionException {
    // [START set_custom_user_claims]
    // Set admin privilege on the user corresponding to uid.
    Map<String, Object> claims = new HashMap<>();
    claims.put("admin", true);
    FirebaseAuth.getInstance().setCustomUserClaimsAsync(uid, claims).get();
    // The new custom claims will propagate to the user's ID token the
    // next time a new one is issued.
    // [END set_custom_user_claims]

    String idToken = "id_token";
    // [START verify_custom_claims]
    // Verify the ID token first.
    FirebaseToken decoded = FirebaseAuth.getInstance().verifyIdTokenAsync(idToken).get();
    if (Boolean.TRUE.equals(decoded.getClaims().get("admin"))) {
      // Allow access to requested admin resource.
    }
    // [END verify_custom_claims]

    // [START read_custom_user_claims]
    // Lookup the user associated with the specified uid.
    UserRecord user = FirebaseAuth.getInstance().getUserAsync(uid).get();
    System.out.println(user.getCustomClaims().get("admin"));
    // [END read_custom_user_claims]
  }