Progressive web metrics at your fingertipz. 💅
pwmetrics CLI tool and lib to gather performance metrics via Lighthouse.
P.S: This module is IN BETA, so you must be ready for anything 😉
GET IT: npm install --global pwmetrics or npm install --save pwmetrics
Sample CLI usage:
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| # run Chrome with port 9222 open
chrome --remote-debugging-port=9222 --no-first-run --user-data-dir=$(mktemp -d -t pwm.XXXXX)
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| # run pwmetrics with your url
pwmetrics https://jsfeatures.in
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| $ pwmetrics --json https://jsfeatures.in
{
"timings": [
{
"name": "First Contentful Paint",
"value": 1875.337
},
{
"name": "First Meaningful Paint",
"value": 1970.7
},
{
"name": "Median Visual Completion",
"value": 1997
},
{
"name": "First Visual Change",
"value": 1917
},
{
"name": "Visually Complete 100%",
"value": 2004
},
{
"name": "Time to Interactive",
"value": -1
},
{
"name": "Visually Complete 85%"
},
{
"name": "Navigation Start",
"value": 0
}
],
"timestamps": [
303915241.28
]
}
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API:
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| const PWMetrics = require('pwmetrics');
new PWMetrics('https://jsfeatures.in', opts); // opts => {data:fileName} for now.
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GIF FTW!:
