[Home](./index.md) > [@firebase/storage](./storage.md) > [uploadBytes](./storage.uploadbytes.md) ## uploadBytes() function Uploads data to this object's location. The upload is not resumable. Signature: ```typescript export declare function uploadBytes(ref: StorageReference, data: Blob | Uint8Array | ArrayBuffer, metadata?: UploadMetadata): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | ref | [StorageReference](./storage.storagereference.md) | StorageReference where data should be uploaded. | | data | Blob \| Uint8Array \| ArrayBuffer | The data to upload. | | metadata | [UploadMetadata](./storage.uploadmetadata.md) | Metadata for the data to upload. | Returns: Promise<[UploadResult](./storage.uploadresult.md)> A Promise containing an UploadResult