[Home](./index.md) > [@firebase/storage](./storage.md) > [UploadTaskSnapshot](./storage.uploadtasksnapshot.md) > [metadata](./storage.uploadtasksnapshot.metadata.md) ## UploadTaskSnapshot.metadata property Before the upload completes, contains the metadata sent to the server. After the upload completes, contains the metadata sent back from the server. Signature: ```typescript metadata: FullMetadata; ```