appwrite/docs/examples/1.5.x/server-kotlin/java/storage/get-file.md

import io.appwrite.Client;
import io.appwrite.coroutines.CoroutineCallback;
import io.appwrite.services.Storage;

Client client = new Client()
    .setEndpoint("https://cloud.appwrite.io/v1") // Your API Endpoint
    .setProject("5df5acd0d48c2") // Your project ID
    .setSession(""); // The user session to authenticate with

Storage storage = new Storage(client);

storage.getFile(
    "[BUCKET_ID]", // bucketId
    "[FILE_ID]", // fileId
    new CoroutineCallback<>((result, error) -> {
        if (error != null) {
            error.printStackTrace();
            return;
        }

        System.out.println(result);
    })
);