Customize and Develop

1. Use registry database
2. Function pick
   RDAP server supports all 6 query functions and 3 search functions defined in draft-ietf-weirds-rdap-query-15.

• IP network query
• autonomous system number query
• domain query
• nameserver query
• entity query
• help query
• domain search
• nameserver search
• entity search
  You can disable some of these functions by add the URI to ‘notImplementedUri’ property in rdap.properties.

1. Customize Validator
   Query/search parameter are validated before query. You can modify validation logic by add/remove/modify validators.
   All validators are extends from Validator.java, such as DomainNameValidator.

2. Enable/disable access control
   Access Control is done in AccessControlQueryFilter.
   You can enable/disable access control by configuring 'accessControlQueryFilter' in [queryFilter](query filter).

3. Enable/disable redirect
   Redirect is done in *RedirectQueryFilter.
   You can enable/disable redirect by configuring these filters in [queryFilter](query filter).

4. You can add custom features by adding [queryFilter](query filter).

5. [Vcard extension](https://github.com/cnnic/rdap/wiki/vcard extension).