JSON structure quesiton: multiple and different JSON entries, one txt file - json

Question

I am trying to do some work with log visualization tools (Elastic and/or Splunk), but first I need to produce and format the log files from a simulation I am writing. My question, which I can't seem to find clear guidance on is:
How to store multiple, what I believe are root element JSON entries in a single text file
How to work with nested JSON structures
I am ultimately trying to have every entry follow the same form:
{"entry_id": 1,
"TIME": "12:00:12Z012/01/2022",
"LOG_TYPE":"ERROR_REPORT",
"DATA": {
"FIELD A" : "ABC",
"FIELD B" : "DEF"
}
},
{"entry_id": 2,
"TIME": "12:15:12Z012/01/2022",
"LOG_TYPE":"STATUS_REPORT",
"DATA": {
"FIELD C" : "HIJ",
"FIELD D" : 123
}
}
Some options I saw
Use an array []
Use NDJSON
Use some log template??
Any insight would be helpful

Answer 1

JSON files need to be a single object and can't be INVALID themselves.
Option 1: Create a single file for each of the objects, using a numeric naming system for the files, then iterating over the files in your method.
Option 2: Create a single file but have each entry contained in an array eg:
{
"entries": [
{
"entry_id": 1,
"TIME": "12:00:12Z012/01/2022",
"LOG_TYPE": "ERROR_REPORT",
"DATA": {
"FIELD A": "ABC",
"FIELD B": "DEF"
}
},
{
"entry_id": 2,
"TIME": "12:15:12Z012/01/2022",
"LOG_TYPE": "STATUS_REPORT",
"DATA": {
"FIELD C": "HIJ",
"FIELD D": 123
}
}
]
}