Firebase Image Upload with ImageUpload React

image_upload_firebase.js

putFeaturedImagetoStorage(key){
      // the return value will be a Promise
      let set = this
      let time = Date.now();

      let name = '/FOLDER_NAME/' + 'featured-' + time
      
      return firebase.storage().ref().child(name).put(set.state.featured_image[0]).then(function(snapshot) {
        snapshot.ref.getDownloadURL().then(function(downloadURL) {
          let imagePath = {
            featured_image_download_url: downloadURL,
            featured_image_name: name,
            featured_image_folder: folder,
            featured_image_file_name: file_name,
          }
          //save imagePath path to firebase firestore document or anywhere 
        });
      }).catch((error) => {
        console.log('One failed: ', error.message)
      });
}

//function to set image
onDropPoster(picture){
      this.setState({
        featured_image: picture,
      })
}


//render method
<ImageUploader
    singleImage={true}
    withIcon={true}
    buttonText='Choose images'
    onChange={this.onDropPoster}
    imgExtension={['.jpg']}
    maxFileSize={5242880}
    withPreview={true}
  />