feat: Add auto-logging feature

[ptang-nr]

The auto-logging feature builds on top of the current API calls log and wrapLogger. The api calls continue to provide a way to add custom attributes as needed. Otherwise, customers may simply configure browser logs (on/off, logging level, and sampling rates), which will capture logging statements from the browser console across a given session automatically.

Overview

This PR includes work that:

• wraps the various logging methods of the console
• aggregates logging events according to the log flag received from rum call to BCS
• persists logging mode across active session and will auto-disable upon session expiration after 4 hours or session inactivity after 30 minutes.

Related Issue(s)

https://new-relic.atlassian.net/browse/NR-323591
https://new-relic.atlassian.net/browse/NR-323597
https://new-relic.atlassian.net/browse/NR-341932

Testing

• Extended the existing e2e tests for logging harvests:

  • pre-load
  • post-load
  • harvests that are too large
  • harvest early

• Extended existing logging aggregate unit and e2e tests around handling the flag. Includes tests for each logging mode to ensure log messages of equal or higher levels are collected. For example, if the log flag = 3 (INFO), then collect console.error, console.warn, console.info, and console.log events.

• Extended existing tests to ensure no harvests when rum flag = 0 and events are drained.

[github-actions]

Asset Size Report

Merging this pull request will result in the following asset size changes:

Agent	Asset	Previous Size	New Size	Diff
lite	loader	29.82 kB / 10.82 kB (gzip)	29.87 kB / 10.84 kB (gzip)	0.19% / 0.24% (gzip)
lite	async-chunk	52.6 kB / 17.08 kB (gzip)	52.67 kB / 17.1 kB (gzip)	0.13% / 0.11% (gzip)
pro	loader	51.51 kB / 17.8 kB (gzip)	51.95 kB / 17.9 kB (gzip)	0.86% / 0.61% (gzip)
pro	async-chunk	100.74 kB / 30.77 kB (gzip)	102.01 kB / 31.08 kB (gzip)	1.26% / 0.98% (gzip)
spa	loader	59.12 kB / 20.11 kB (gzip)	59.57 kB / 20.22 kB (gzip)	0.75% / 0.52% (gzip)
spa	async-chunk	115.45 kB / 35.1 kB (gzip)	116.72 kB / 35.39 kB (gzip)	1.1% / 0.84% (gzip)

[codecov]

Codecov Report

Attention: Patch coverage is 85.00000% with 9 lines in your changes missing coverage. Please review.

Project coverage is 88.80%. Comparing base (46f5cc7) to head (9b54992).

Files with missing lines	Patch %	Lines
src/features/logging/aggregate/index.js	80.00%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1274      +/-   ##
==========================================
+ Coverage   88.75%   88.80%   +0.04%     
==========================================
  Files         170      170              
  Lines        7348     7412      +64     
  Branches     1489     1503      +14     
==========================================
+ Hits         6522     6582      +60     
- Misses        716      722       +6     
+ Partials      110      108       -2     

Flag	Coverage Δ
integration-tests	91.33% <100.00%> (+0.15%)	⬆️
unit-tests	79.93% <70.45%> (-0.08%)	⬇️

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[github-actions]

Last ran on February 05, 2025 14:19:39 CST
Checking merge of (9b54992) into main (46f5cc7)

[metal-messiah]

This is my approval, but this needs to wait until tentative GA date as discussed internally. Adjacent teams doing final checks. Blocking until that is reached