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const getWebApk = async function (fileName, manifestUrl = document.querySelector("link[rel=manifest]").href) {
Uint8Array.prototype.toBase64 ??= function () {
return btoa(Array.from(this, v => String.fromCharCode(v)).join(""));
}
const manifest = await (await fetch(manifestUrl)).json();
if (!manifest.start_url) {
alert('Manifest start_url missing');
return;
}
if (!manifest.icons) {
alert('Manifest icons missing');
return;
}
const startUrl = new URL(manifest.start_url, manifestUrl);
const imageData = new Uint8Array(await (await fetch(new URL(manifest.icons.find(v => v.type === "image/png").src, manifestUrl))).arrayBuffer()).toBase64();
const {downloadUrl} = await (
await fetch("https://webapk.googleapis.com/v1/webApks/?key=AIzaSyAoI6v-F31-3t9NunLYEiKcPIqgTJIUZBw", {
method: "POST",
body: JSON.stringify({
appKey: startUrl, manifestUrl, requesterApplicationPackage: "com.android.chrome",
manifest: {
name: manifest.name,
startUrl,
id: startUrl,
scopes: [new URL(".", startUrl)],
icons: [{imageData}],
displayMode: manifest.display
}
}),
headers: {
"content-type": "application/json",
},
})
).json();
if (typeof downloadUrl !== 'string') {
alert('Error generating APK');
return;
}
location = downloadUrl;
return;
};
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