How to create a Map out of Json File

Gatling (Open-Source)
1

Json File Looks like this

[
{
“id”: 123456,
“version”: ,
“productCode”: “”,
“displayName”: “”,
“productType”: “”,
“unitOfMeasure”: “}”,
“lotSize”: ,
“decimals”:
“tickSize”: ,
“minimumVolumeThreshold”: ,
“currency”: “”,
“clearingSession”: “”,
“proEnabled”: false,
“strikeDecimalPointLocator”: 0,
“priceBandContractMultiplier”: 1,
“negativeOutrightPriceAllowed”: false,
“clearingSessionEnd”: “”,
“active”: true
},