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logback
Oliver Hausler
Oliver Hausler

Reputation: 4977

How can I format the date as epoch timestamp in logback?

I am using logback and I want to print an epoch timestamp instead of the date and time.

https://logback.qos.ch/manual/layouts.html#contextName references https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html where there is no way to format a date as epoch.

I can't believe this essential functionality isn't available, but I googled for a while and couldn't find it.

What I found is the same question for log4j log4j : current time in milliseconds, but what @thegeko suggests there %d{UNIX_MILLIS} doesn't work for me in logback.

Does anybody know?

Upvotes: 2

Views: 2815

Answers (1)

Suresh T
Suresh T

Reputation: 67

You can use this snippet to print Unix Epoch:

<layout class="net.logstash.logback.layout.LogstashLayout">
    <timeZone>UTC</timeZone>
    <timestampPattern>[UNIX_TIMESTAMP_AS_NUMBER]</timestampPattern>
</layout>

Reference: https://github.com/logstash/logstash-logback-encoder#customizing-timestamp

Upvotes: 1

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