decodeDataUri

Summary

decodeDataUri validates and decodes a base64 or percent-encoded data URI into bytes and an optional media type.

Syntax

decodeDataUri(uri: string): DecodedDataUri

Parameters

Name	Type	Required	Description
uri	string	Yes	Complete data: URI to validate and decode.

Returns

type DecodedDataUri = { mimeType: string | null; data: ArrayBuffer };

Malformed schemes, media types, parameters, escapes, or base64 payloads throw an Error.

Type Details

mimeType contains the validated media type and parameters, excluding the base64 marker, or null when no media type was supplied. data is a newly allocated byte buffer. Base64 payloads are decoded as bytes; non-base64 payloads support percent escapes and encode unescaped non-ASCII characters as UTF-8.

Example

import { decodeDataUri } from "@zushah/wasmgpu";

const decoded = decodeDataUri("data:application/octet-stream;base64,AQID");
console.log(decoded.mimeType); // application/octet-stream
console.log(Array.from(new Uint8Array(decoded.data))); // [1, 2, 3]

See Also

• isDataUri
• WasmGPU.gltf.load