I am running 8.5.6 on Linux.

I see the option for -SendMIMEHeaders and I have been given this guideline
for a REST API call.

How do I properly send these headers. Also, since he wants a single JSON
object as data, do I just have the json encoded variable in the postparams
as a string?

So I would look something like:
include_url('mybaseurl/usernamevalue/Appointments', -username='xxxx',
-password='xxxx',
-SendMimeHeaders=array('Content-Type'='application/json',
'Accept'='application/json'), -POSTParams=$JSONvar);

Create New Appointment
Creates a new appointment in the given mailbox.
Verb: POST
Url: /{username}/Appointments
Headers: Content-Type: application/json, Accept:
application/json
Body (input): AppointmentData JSON Object (Do not include ID
property)
Body (return): New appointment (AppointmentData JSON Object


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