I’ve created performance-mark-metadata. This library provide performance.mark with custom meta data.
This library inspired by User Timing API Leve...
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Can it be used to gather sample data from users and centralize it? Also can it be used w/o nodejs? For a static website for example.
Yes, But you should prepare own logging system and post data to the logging system.
For example, API Gateway + Lambda + S3(Post serialized JSON data from a browser to lambda via API Gateway, and save it to S3).
Yes, It is work on modern browser.
Logging backend could be implemented in any language. It just treat log data like json.