Please add JSON Path queries

[BrightSoul]

I'd like to run a JSON Path query on a jsonl file produced by Serilog.
It should output new results as they are written in the log file (much like the tail command).
Thanks

[fredeil]

Sorry haven't seen your request before now @BrightSoul.
Could you describe it a little better?

[BrightSoul]

Hi @fredeil, sure I'll provide some clarification.
Suppose this is the content of my text.ndjson file:

{ "cpu" : "25" }
{ "cpu" : "85" }
{ "cpu" : "15" }

I'd like to run a JSON query on that content like this.

ndjson text.ndjson -query "cpu>80"

And it should output just one result:

{ "cpu" : "85" }

Then, if I add a -f flag, the ndjson it should also 'follow' the file, i.e. start watching it for new lines that might be appended after the command is executed.

ndjson text.ndjson -query "cpu>80" -f

Again it should output the same result AND wait for new lines.

{ "cpu" : "85" }

So, as soon as a new line is added to the file, it should appear in the output if it matches the given query.

{ "cpu" : "85" }
{ "cpu" : "92" }
{ "cpu" : "81" }
....

Much like this command on linux.

tail -f file | grep query

Bye