baby step

Author: coyotte508

packages/hub/src/utils/WebBlob.ts

@@ -60,7 +60,7 @@ export class WebBlob extends Blob {
 
 	override slice(start = 0, end = this.size): WebBlob {
 		if (start < 0 || end < 0) {
-			new TypeError("Unsupported negative start/end on FileBlob.slice");
+			new TypeError("Unsupported negative start/end on WebBlob.slice");
 		}
 
 		const slice = new WebBlob(

packages/hub/src/utils/XetBlob.ts

@@ -0,0 +1,24 @@
+import type { CredentialsParams } from "../types/public";
+import { checkCredentials } from "./checkCredentials";
+
+type XetBlobCreateOptions = {
+	/**
+	 * Custom fetch function to use instead of the default one, for example to use a proxy or edit headers.
+	 */
+	fetch?: typeof fetch;
+} & Partial<CredentialsParams>;
+
+/**
+ * XetBlob is a blob implementation that fetches data directly from the Xet storage
+ */
+export class XetBlob extends Blob {
+	fetch: typeof fetch;
+	accessToken?: string;
+
+	constructor(params: XetBlobCreateOptions) {
+		super([]);
+
+		this.fetch = params.fetch ?? fetch;
+		this.accessToken = checkCredentials(params);
+	}
+}