Filter nodes by a boolean value - json

Question

I have to filter JSON by IsNew parameter (true or false)
Part of the JSON is below:
{
"data": [
{
"type": "users",
"attributes": {
"first-name": "student21",
"last-name": "student21",
"username": "student21",
"role": "student",
"IsNew": true
},
"relationships": {
"groups": {
"data": [
{
"type": "groups",
"id": "123f"
}
]
}
}
},
{
"type": "users",
"attributes": {
"first-name": "student23",
"last-name": "student23",
"email": "",
"avatar-url": null,
"username": "student23",
"role": "student",
"IsNew": false
},
"relationships": {
"groups": {
"data": [
{
"type": "groups",
"id": "456"
}
]
}
}
}
]
}
I've tried the following expressions:
$..data..[?(#.IsNew == true)].username,
$..data..[?(#.IsNew == 'true')].username,
$..data..[?(#.IsNew == "true")].username
All those expressions don't return any result.
I need to extract usernames for students with "IsNew" == true and "IsNew" == false separetely.

Answer 1

To extract usernames for students with "IsNew" == true, use a JSON Extractor with following settings:
JSON Path Expression :$.data..attributes[?(#.IsNew =~ /.*true/i)].username
Match No. -1 [to get all the matches for multiple students]
To extract usernames for students with "IsNew" == false, use a JSON Extractor with following settings:
JSON Path Expression :$.data..attributes[?(#.IsNew =~ /.*false/i)].username
Match No. -1 [to get all the matches for multiple students]
Use following variables to process further:
${FalseStudent_matchNr} or ${FalseStudent} if you have used Match No other than -1 in JSON Extractor
${TrueStudent_matchNr} or ${TrueStudent} if you have used Match No other than -1 in JSON Extractor