JavaScript with REST API

[jadengoho]

I have a dashboard where i have a two TEXTBOX[html]

they are connected to my macro by this search command in table
" | rest /servicesNS/-/-/admin/macros count=0 "

and drilldown to the TEXTBOX[html]
textbox1 : NAME (is the name of the macro)
textbox2 : VALUE (is the definition in macro)

Now what i want is to update the macro by a button click

if possible a JavaScript command since they are HTML > JavaScript