How to create a folder in Firebase Storage?

问题

So the new Firebase has support for storage using Google Cloud Platform.

You can upload a file to the images folder using:

var uploadTask = storageRef.child('images').put(file, metadata);

What if you want to create a subfolder images/user1234 dynamically using code?

The offical sample does not show how to do that, nor the official guide or reference docs.

Is the Firebase Console the only place where folders can be created manually?

回答1:

The Firebase Console does allow you to create a folder, since it's the easiest way to add files to a specific folder there.

But there is no public API to create a folder. Instead folders are auto-created as you add files to them.

回答2:

The Firebase Storage API dynamically creates "folders" as intermediate products: if you create a file at images/user1234/file.txt, all intermediate "folders" like "images" and "user1234" will be created along the way. So your code becomes:

var uploadTask = storageRef.child('images/user1234/file.txt').put(file, metadata);

Note that you need to include the file name (foo.txt for example) in the child() call, since the reference should include the full path as well as the file name, otherwise your file will be called images.

回答3:

String myFolder = "MyImages";
StorageReference riversRef = storageReference.child(myFolder).child("images/pic.jpg");

回答4:

You most certainly can create directories... with a little bit of playing with the references I did the following.

test = (e,v) => {
    let fileName = "filename"
    let newDirectory = "someDir"
    let storage = firebase.storage().ref(`images/${newDirectory}/${fileName}`)

    let file = e.target.files[0]
    if(file !== undefined && file.type === "image/png" ) {
        storage.put(file)
            .then( d => console.log('you did it'))
            .catch( d => console.log("do something"))
    }
}

回答5:

Firebase console allows you to create a folder. I don't think there is another way to create a folder.

来源：https://stackoverflow.com/questions/37664385/how-to-create-a-folder-in-firebase-storage