How to add throttling in Lighthouse programmaticaly?
0
I'm a little bit confused how to supply throttling options via Lighthouse using NodeJS. I can do it via bash script:
lighthouse https://hazemhagrass.com --quiet --chrome-flags='--headless' --output=json --output-path=>hazem.json
node.js lighthouse
asked Nov 14 '18 at 10:24
Hazem HagrassHazem Hagrass
4,84962642
add a comment |
0
I'm a little bit confused how to supply throttling options via Lighthouse using NodeJS. I can do it via bash script:
lighthouse https://hazemhagrass.com --quiet --chrome-flags='--headless' --output=json --output-path=>hazem.json
node.js lighthouse
asked Nov 14 '18 at 10:24
Hazem HagrassHazem Hagrass
4,84962642
add a comment |
0
0
0
I'm a little bit confused how to supply throttling options via Lighthouse using NodeJS. I can do it via bash script:
lighthouse https://hazemhagrass.com --quiet --chrome-flags='--headless' --output=json --output-path=>hazem.json
node.js lighthouse
asked Nov 14 '18 at 10:24
Hazem HagrassHazem Hagrass
4,84962642
I'm a little bit confused how to supply throttling options via Lighthouse using NodeJS. I can do it via bash script:
lighthouse https://hazemhagrass.com --quiet --chrome-flags='--headless' --output=json --output-path=>hazem.json
node.js lighthouse
node.js lighthouse
asked Nov 14 '18 at 10:24
Hazem HagrassHazem Hagrass
4,84962642
asked Nov 14 '18 at 10:24
Hazem HagrassHazem Hagrass
4,84962642
asked Nov 14 '18 at 10:24
Hazem HagrassHazem Hagrass
4,84962642
asked Nov 14 '18 at 10:24
Hazem HagrassHazem Hagrass
4,84962642
asked Nov 14 '18 at 10:24
Hazem HagrassHazem Hagrass
4,84962642
4,84962642
add a comment |
add a comment |
1 Answer
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0
The example below shows how to run Lighthouse programmatically as a Node module with a custom configurations.
const lighthouse = require('lighthouse');
const chromeLauncher = require('chrome-launcher');
function launchChromeAndRunLighthouse(url, opts, config = null) {
return chromeLauncher.launch({
chromeFlags: opts.chromeFlags
}).then(chrome => {
opts.port = chrome.port;
const options = Object.assign({}, flags, config);
return lighthouse(url, opts).then(results => {
// use results.lhr for the JS-consumeable output
// https://github.com/GoogleChrome/lighthouse/blob/master/typings/lhr.d.ts
// use results.report for the HTML/JSON/CSV output as a string
// use results.artifacts for the trace/screenshots/other specific case you need (rarer)
return chrome.kill().then(() => results.lhr)
});
});
}
const opts = {
chromeFlags: ['--show-paint-rects']
};
// Usage:
const config = {
throttling: {
rttMs: 150,
throughputKbps: 1.6 * 1024,
cpuSlowdownMultiplier: 4,
}
};
launchChromeAndRunLighthouse('https://hazemhagrass.com', opts, config).then(results => {
// Use results!
});
answered Nov 14 '18 at 11:20
Hazem HagrassHazem Hagrass
4,84962642
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
The example below shows how to run Lighthouse programmatically as a Node module with a custom configurations.
const lighthouse = require('lighthouse');
const chromeLauncher = require('chrome-launcher');
function launchChromeAndRunLighthouse(url, opts, config = null) {
return chromeLauncher.launch({
chromeFlags: opts.chromeFlags
}).then(chrome => {
opts.port = chrome.port;
const options = Object.assign({}, flags, config);
return lighthouse(url, opts).then(results => {
// use results.lhr for the JS-consumeable output
// https://github.com/GoogleChrome/lighthouse/blob/master/typings/lhr.d.ts
// use results.report for the HTML/JSON/CSV output as a string
// use results.artifacts for the trace/screenshots/other specific case you need (rarer)
return chrome.kill().then(() => results.lhr)
});
});
}
const opts = {
chromeFlags: ['--show-paint-rects']
};
// Usage:
const config = {
throttling: {
rttMs: 150,
throughputKbps: 1.6 * 1024,
cpuSlowdownMultiplier: 4,
}
};
launchChromeAndRunLighthouse('https://hazemhagrass.com', opts, config).then(results => {
// Use results!
});
answered Nov 14 '18 at 11:20
Hazem HagrassHazem Hagrass
4,84962642
add a comment |
0
The example below shows how to run Lighthouse programmatically as a Node module with a custom configurations.
const lighthouse = require('lighthouse');
const chromeLauncher = require('chrome-launcher');
function launchChromeAndRunLighthouse(url, opts, config = null) {
return chromeLauncher.launch({
chromeFlags: opts.chromeFlags
}).then(chrome => {
opts.port = chrome.port;
const options = Object.assign({}, flags, config);
return lighthouse(url, opts).then(results => {
// use results.lhr for the JS-consumeable output
// https://github.com/GoogleChrome/lighthouse/blob/master/typings/lhr.d.ts
// use results.report for the HTML/JSON/CSV output as a string
// use results.artifacts for the trace/screenshots/other specific case you need (rarer)
return chrome.kill().then(() => results.lhr)
});
});
}
const opts = {
chromeFlags: ['--show-paint-rects']
};
// Usage:
const config = {
throttling: {
rttMs: 150,
throughputKbps: 1.6 * 1024,
cpuSlowdownMultiplier: 4,
}
};
launchChromeAndRunLighthouse('https://hazemhagrass.com', opts, config).then(results => {
// Use results!
});
answered Nov 14 '18 at 11:20
Hazem HagrassHazem Hagrass
4,84962642
add a comment |
0
0
0
The example below shows how to run Lighthouse programmatically as a Node module with a custom configurations.
const lighthouse = require('lighthouse');
const chromeLauncher = require('chrome-launcher');
function launchChromeAndRunLighthouse(url, opts, config = null) {
return chromeLauncher.launch({
chromeFlags: opts.chromeFlags
}).then(chrome => {
opts.port = chrome.port;
const options = Object.assign({}, flags, config);
return lighthouse(url, opts).then(results => {
// use results.lhr for the JS-consumeable output
// https://github.com/GoogleChrome/lighthouse/blob/master/typings/lhr.d.ts
// use results.report for the HTML/JSON/CSV output as a string
// use results.artifacts for the trace/screenshots/other specific case you need (rarer)
return chrome.kill().then(() => results.lhr)
});
});
}
const opts = {
chromeFlags: ['--show-paint-rects']
};
// Usage:
const config = {
throttling: {
rttMs: 150,
throughputKbps: 1.6 * 1024,
cpuSlowdownMultiplier: 4,
}
};
launchChromeAndRunLighthouse('https://hazemhagrass.com', opts, config).then(results => {
// Use results!
});
answered Nov 14 '18 at 11:20
Hazem HagrassHazem Hagrass
4,84962642
The example below shows how to run Lighthouse programmatically as a Node module with a custom configurations.
const lighthouse = require('lighthouse');
const chromeLauncher = require('chrome-launcher');
function launchChromeAndRunLighthouse(url, opts, config = null) {
return chromeLauncher.launch({
chromeFlags: opts.chromeFlags
}).then(chrome => {
opts.port = chrome.port;
const options = Object.assign({}, flags, config);
return lighthouse(url, opts).then(results => {
// use results.lhr for the JS-consumeable output
// https://github.com/GoogleChrome/lighthouse/blob/master/typings/lhr.d.ts
// use results.report for the HTML/JSON/CSV output as a string
// use results.artifacts for the trace/screenshots/other specific case you need (rarer)
return chrome.kill().then(() => results.lhr)
});
});
}
const opts = {
chromeFlags: ['--show-paint-rects']
};
// Usage:
const config = {
throttling: {
rttMs: 150,
throughputKbps: 1.6 * 1024,
cpuSlowdownMultiplier: 4,
}
};
launchChromeAndRunLighthouse('https://hazemhagrass.com', opts, config).then(results => {
// Use results!
});
answered Nov 14 '18 at 11:20
Hazem HagrassHazem Hagrass
4,84962642
answered Nov 14 '18 at 11:20
Hazem HagrassHazem Hagrass
4,84962642
answered Nov 14 '18 at 11:20
Hazem HagrassHazem Hagrass
4,84962642
answered Nov 14 '18 at 11:20
Hazem HagrassHazem Hagrass
4,84962642
4,84962642
add a comment |
add a comment |
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