Function uploadPart

api/download/src/bucket.ts:133–178

(
	bucketPath: string,
	uploadId: string,
	partNumber: number,
	partData: Uint8Array | ArrayBuffer,
)

};

const uploadPart = async (
	bucketPath: string,
	uploadId: string,
	partNumber: number,
	partData: Uint8Array | ArrayBuffer,
) => {
	keepAwake(SLEEP_MINUTES);
	const formData = new FormData();
	formData.append('partNumber', String(partNumber));
	formData.append('uploadId', uploadId);

	const blob = new Blob([partData]);
	const filename = `${bucketPath}-${partNumber}`;
	formData.append('file', blob, filename);

	const resp = await fetch(
		`https://upload.fontsource.org/multipart/${bucketPath}?action=mpu-uploadpart`,
		{
			method: 'PUT',
			headers: {
				Authorization: `Bearer ${
					// biome-ignore lint/style/noNonNullAssertion: <explanation>
					process.env.UPLOAD_KEY!
				}`,
			},
			body: formData,
		},
	);

	if (!resp.ok) {
		const error = await resp.text();
		const msg = `Unable to upload part. ${error}`;

		await abortMultiPartUpload(bucketPath, uploadId, msg);
		handleBucketError(resp, msg);
	}

	const data = await resp.json();
	if (!data.etag) {
		throw new StatusError(
			500,
			`Internal Server Error. ETag is missing. ${JSON.stringify(data)}`,
		);
	}
	return data.etag;
};

const completeMultipartUpload = async (
	bucketPath: string,