Regex Query to extract a number

Elastic Stack Elasticsearch
1

I am new to ES. I have a log message coming and I want to extract some field:

{"msg":"Certificate is going to expire in 1088 Regenerate the same","days_left":1088}

I would like to check if the date is less than 60. Is there any way this can be handled using any regex query?

2

At first you need to save the day_left as a field in ES document and later you can use the range query in ES to check the condition

1 Like
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Will it not work without having it in the document? This whole json is coming in Kibana as part of only the log message. if I search for "days_left: 1088" I get the desired field. But the value will change tomorrow. So, I cannot hardcode my search string.

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