You have access to the HTTP header using the <@HTTPATTRIBUTE> tag. Note that
<@HTTPATTRIBUTE Full_Header> will return everything in an array, which you can
then parse to get custom headers.
The payload of the request is available in <@HTTPATTRIBUTE post_args>
TS7 can't parse json and
The image (binary) data needs to be captured and sent to TS using multipart
form encoding (same as the kind of form you need when there's a file input
present) There are JS tools that can do this for you.
In TS you can access the binary data of the image just like any other argument
(with
