Parse & serialize user-agent client hints (UA-CH) HTTP headers
npm install ua-client-hints-js``sh`
npm i ua-client-hints-js
`js`
setValuesFromHeaders(headers:object): UAClientHints
`js`
setValuesFromUAParser(iresult:object): UAClientHints
`js`
setValues(data:object): UAClientHints
`js`
getValues([fields:string[]]): object
`js`
getValuesAsHeaders([fields:string[]]): object
`js
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"'
};
*/
`
`js
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 <
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