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ua-client-hints-js
Advanced tools
Readme
Parse & serialize user-agent client hints (UA-CH) HTTP headers
npm i ua-client-hints-js
setValuesFromHeaders(headers:object): UAClientHints
setValuesFromUAParser(iresult:object): UAClientHints
setValues(data:object): UAClientHints
getValues([fields:string[]]): object
getValuesAsHeaders([fields:string[]]): object
import { UAClientHints } from 'ua-client-hints-js';
/*
Suppose we're in a server having this client hints data:
const req = {
headers : {
'sec-ch-ua' : '"Chromium";v="93", "Google Chrome";v="93", " Not;A Brand";v="99"',
'sec-ch-ua-full-version-list' : '"Chromium";v="93.0.1.2", "Google Chrome";v="93.0.1.2", " Not;A Brand";v="99.0.1.2"',
'sec-ch-ua-arch' : '"arm"',
'sec-ch-ua-bitness' : '"64"',
'sec-ch-ua-mobile' : '?1',
'sec-ch-ua-model' : '"Pixel 99"',
'sec-ch-ua-platform' : '"Linux"',
'sec-ch-ua-platform-version' : '"13"'
};
*/
const ch = new UAClientHints();
ch.setValuesFromHeaders(req.headers);
const chData1 = ch.getValues(['architecture', 'bitness', 'mobile']);
console.log(chData1);
/*
{
"architecture": "arm",
"bitness": "64",
"mobile": true
}
*/
const chData2 = ch.getValues();
console.log(chData2);
/*
{
"architecture": "arm",
"bitness": "64",
"brands": [
{
"brand": "Chromium",
"version": "93"
},
{
"brand": "Google Chrome",
"version": "93"
},
{
"brand": " Not;A Brand",
"version": "99"
}
],
"fullVersionList": [
{
"brand": "Chromium",
"version": "93.0.1.2"
},
{
"brand": "Google Chrome",
"version": "93.0.1.2"
},
{
"brand": " Not;A Brand",
"version": "99.0.1.2"
}
],
"mobile": true,
"model": "Pixel 99",
"platform": "Linux",
"platformVersion": "13",
"wow64": null,
"formFactor": null
}
*/
ch.setValues({
'wow64' : true,
'formFactor' : 'Automotive'
});
const headersData1 = ch.getValuesAsHeaders();
console.log(headersData1);
/*
{
'Sec-CH-UA' : '"Chromium"; v="93", "Google Chrome"; v="93", " Not;A Brand"; v="99"',
'Sec-CH-UA-Full-Version-List' : '"Chromium"; v="93.0.1.2", "Google Chrome"; v="93.0.1.2", " Not;A Brand"; v="99.0.1.2"',
'Sec-CH-UA-Arch' : '"arm"',
'Sec-CH-UA-Bitness' : '"64"',
'Sec-CH-UA-Mobile' : '?1',
'Sec-CH-UA-Model' : '"Pixel 99"',
'Sec-CH-UA-Platform' : '"Linux"',
'Sec-CH-UA-Platform-Version' : '"13"',
'Sec-CH-UA-WOW64' : '?1',
'Sec-CH-UA-Form-Factor' : '"Automotive"'
};
*/
const headersData2 = ch.getValuesAsHeaders(['brand', 'mobile', 'model']);
console.log(headersData2);
/*
{
'Sec-CH-UA' : '"Chromium"; v="93", "Google Chrome"; v="93", " Not;A Brand"; v="99"',
'Sec-CH-UA-Mobile' : '?1',
'Sec-CH-UA-Model' : '"Pixel 99"'
};
*/
import { UAClientHints } from 'ua-client-hints-js';
import { UAParser } from 'ua-parser-js';
const ua = 'Mozilla/5.0 (Mobile; Windows Phone 8.1; Android 4.0; ARM; Trident/7.0; Touch; rv:11.0; IEMobile/11.0; NOKIA; Lumia 635) like iPhone OS 7_0_3 Mac OS X AppleWebKit/537 (KHTML, like Gecko) Mobile Safari/537';
const uap = new UAParser(ua).getResult();
const ch = new UAClientHints();
ch.setValuesFromUAParser(uap);
const chData = ch.getValues();
console.log(chData);
/*
{
architecture: null,
bitness: null,
brands: [
{
brand: 'IEMobile',
version: '11.0'
}
],
formFactor: ['Mobile'],
fullVersionList: [
{
brand: 'IEMobile',
version: '11.0'
}
],
mobile: true,
model: 'Lumia 635',
platform: 'Windows Phone',
platformVersion: '8.1',
wow64: null
};
*/
const chHeaders = ch.getValuesAsHeaders();
console.log(chHeaders);
/*
{
'Sec-CH-UA-Arch': '',
'Sec-CH-UA-Bitness': '',
'Sec-CH-UA': '"IEMobile"; v="11.0"',
'Sec-CH-UA-Form-Factor': '"Mobile"',
'Sec-CH-UA-Full-Version-List': '"IEMobile"; v="11.0"',
'Sec-CH-UA-Mobile': '?1',
'Sec-CH-UA-Model': '"Lumia 635"',
'Sec-CH-UA-Platform': '"Windows Phone"',
'Sec-CH-UA-Platform-Version': '"8.1"',
'Sec-CH-UA-WOW64': ''
}
*/
MIT License
Copyright (c) 2023 Faisal Salman <f@faisalman.com>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
FAQs
Parse & serialize user-agent client hints (UA-CH) HTTP headers
The npm package ua-client-hints-js receives a total of 44 weekly downloads. As such, ua-client-hints-js popularity was classified as not popular.
We found that ua-client-hints-js demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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