You can access the DBFlex / Teamdesk REST API using HTMX, specifically its "client side templates" extension. Use the API Playground from setup to get the URL to target with hx-get
.
DBFlex wraps its json in an array, so if you're using a Mustache template, you need to wrap the field you're accessing like this:
{{#.}} {{ Holiday Name }} {{/.}}
Given json something like dbflex-view.json
from DBFlex / Teamdesk, you can access it as shown in index.html
below.
Test it yourself in this jsbin: https://jsbin.com/qonutovico/edit?html,output