python-3.x - 如何从 Firebase 存储下载文件

Question

我一直在尝试从 Firebase 存储中下载一些文件。现在我正在尝试列出特定路径中的所有文件，如下所示:

from google.cloud import storage


client = storage.Client()
bucket = client.get_bucket('myapp.appspot.com/path/to/folder')
blob = list(bucket.list_blobs())
print(len(blob))

我看到的问题是，我正在获取存储桶中的所有结果，而我只需要我选择的路径中的结果。

我做错了什么？还有其他方法可以实现我的需要吗？

感谢您的帮助。

Answer 1

你应该试试:

 from google.cloud import storage
 from google.cloud.storage import Blob  
 storage_client = storage.Client()

 # get all the buckets
 buckets = storage_client.list_buckets()
 for bucket in buckets:
     print(bucket.name)
 # output  bucket_name

 # get all the blobs in a bucket
 bucket = client.get_bucket("bucket_name")
 blobs = list(bucket.list_blobs())
 for blob in blobs:
     print (blob)
 # print the blobs: blob_name

 #check if the blob exists
 assert isinstance(bucket.get_blob('blob_name'), Blob)

 #get the blob from path
 my_blob = Blob.from_string("gs://bucket_name/blob_name")

 # List the files in a folder 
 files = bucket.list_blobs(prefix='folder_name')
 for f in files:
     print(f.name)