GraphQl File transfer

[MarkSinD]

Is it possible to transfer a picture from the back to the front as a Upload file?
If you save on the back, then everything works out. But is it realistic to send a photo file back to the front via GraphQl?

What I did to transfer the image from front to back:
Adding a new data type for a file:

Look, I get javax.servlet.http.Part when I upload a photo. At the front we get the data through the Apollo hook useQuery/useMutation:

Next, you will need to define scalar Upload in the sсhema.graphqls file:

The most important thing is not to forget to write the method in Mutations in the sсhema.graphqls file:

But how do I send the photo back to the front?

How to write a method signature in the sсhema.graphqls file in Query section and in the implementation of this method in GraphQLMutationResolver?

Please write more documentation on this topic.