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Add web vitals module #3

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darekkay opened this issue May 28, 2021 · 0 comments

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Type: Enhancement

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darekkay commented May 28, 2021 •

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It would be great to include Web Vitals as a module.

Web Vitals are included in Google Lighthouse, and it's possible to use Lighthouse with Playwright/Puppeteer, but there are some issues to consider:

Only Chromium browser is supported
Only 1 parallel check is possible (maxConnection: 1), otherwise we get a TRACING_ALREADY_STARTED errors. See also ☔️ Protocol error (Tracing.start): Tracing is already started GoogleChrome/lighthouse#1091 and LHError: TRACING_ALREADY_STARTED on cucumber/protractor setup GoogleChrome/lighthouse#11321

An alternative is to use web-vitals directly, even though it's officially not recommended to be used in such a way. Artillery uses this package (see code). There's also an example of getting the values without any library.

I've created a WIP lighthouse branch with a proof of concept for including Lighthouse.

Further resources:

The text was updated successfully, but these errors were encountered:

darekkay added the Type: Enhancement label

darekkay changed the title ~~Add Lighthouse module~~ Add web vitals module

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