Appsearch support for large attachments

I did not see the datatype called "attachments" in the Appsearch documentation

I found a suggestion to use _simulate (which means to post the attachment to elasticsearch first then query the elasticsearch _simulate to get back the data to be submitted to the Appsearch

or

Are we missing something?

Another solution is to use Tika: * programmatically parsing my files with Apache Tika (should I convert them to Base64?)

Thank you in advance