12 lines
632 B
TypeScript
12 lines
632 B
TypeScript
/** Web Push wants the VAPID public key as a Uint8Array, not the base64url string the browser subscribe() call ultimately needs to sign with — standard boilerplate conversion, no library needed for it. */
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export function urlBase64ToUint8Array(base64String: string): Uint8Array {
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const padding = "=".repeat((4 - (base64String.length % 4)) % 4);
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const base64 = (base64String + padding).replace(/-/g, "+").replace(/_/g, "/");
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const rawData = atob(base64);
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const outputArray = new Uint8Array(rawData.length);
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for (let i = 0; i < rawData.length; i++) {
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outputArray[i] = rawData.charCodeAt(i);
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}
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return outputArray;
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}
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