Add Flash Listing

curl --request POST \
  --url http://localhost:3000/api/flash/add \
  --header 'Content-Type: application/json' \
  --data '
{
  "price": "<string>",
  "size": "<string>",
  "styles": [
    "<string>"
  ],
  "sessionDuration": 123,
  "tags": [
    "<string>"
  ]
}
'

{
  "success": true,
  "flash": {}
}