How to escape soapui variable pattern in the json request - json

Question

I have a JSON request for my API it takes input string as a pattern ${some.input} which is equivalent to SoapUI properties expansion
request.json looks like:
{
"config": {
"logmsg": "${some.input}",
"logfile": "kilores.log",
"loglevel": "${#TestCase#api_name}"
}
}
when I send an sopaui request the raw looks like
{
"config": {
"logmsg": "",
"logfile": "kilores.log",
"loglevel": "info"
}
}
The issue here is that SoapUI assumes ${some.input} belongs to SoapUI properties expansion and needs to be evaluated. Actually ${some.input} is part of the API JSON request and should not get evaluated by SoapUI before sending it. How can I achieve this? I have other SoapUI variables (like ${#TestCase#api_name}) in the same request that must be evaluated but not that particular one that belongs to the actual request.

Answer 1

I believe it is little trivial one. As you pointed correctly, it was being treated by soapui as property expansion and that is the reason it is being sent as "logmsg" : ""
All you need to do is add an additional $. Hence your request should be as shown below:
{
"config": {
"logmsg": "$${some.input}",
"logfile": "kilores.log",
"loglevel": "${#TestCase#api_name}"
}
}