Attempting to create a new item on a particular board but results in an error in the following JSON Data.
[ JSON Data ]
{
"query": "mutation {\n create_item (\n board_id: ${boardId},\n group_id: \"${groupId}\",\n item_name: \"${itemName}\",\n column_values: \"{\"___9\":\"Monday \"Create Item\" Test\",}\"\n )\n { id\n board {\n id\n name\n }\n group {\n id\n title\n }\n }\n }"
}
[ Testing Environment ]
Using Client : Unirest
Using Language : Kotlin
Using Framework : Spring Boot
Please guide me on why the error occurs and what I should do to correct it.