How to use

vault

function

in

StorageClass

export async function s3Upload(file) {
  // Change Date.now() if the app is heavily used
  const filename = `${Date.now()}-${file.name}`;

  const stored = await Storage.vault.put(filename, file, {
    contentType: file.type
  });

  return stored.key;
}

async componentDidMount() {
    try {
      let attachmentURL;
      const data = await this.getNote();
      const note = data.Item;
      const { content, attachment } = note;

      if (attachment) {
        attachmentURL = await Storage.vault.get(attachment);
      }

      this.setState({
        note,
        content,
        attachmentURL
      });
    } 
    catch (e) {
      console.log(e);
    }
  }