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Forum Discussion
Vlopez1
4 months agoExplorer | Level 3
Continuous timeout errors for a few minutes when uploading files
I have timeouts which may be related to uploading files using upload sessions.
For instance after uploading a 200MB file I get a read operation timeout when trying to list shared links to that file...
Здравко
4 months agoLegendary | Level 20
Vlopez1 wrote:I have timeouts which may be related to uploading files using upload sessions....File "/deployed_ws/ros1/key_external_notifications/lib/python3/dist-packages/key_external_notifications/dropbox_api.py", line 97, in create_shared_link_with_passwordlinks = dbx.sharing_list_shared_links(file_name, direct_only=True)File "/usr/lib/python3/dist-packages/dropbox/base.py", line 5190, in sharing_list_shared_links...
Hi Vlopez1,
How did you decide that a exception thrown when you list possible shared link(s) is related somehow to files upload? 🤔
You may post some code snippet that reproduces the issue... Also, check your network connectivity.
- Vlopez14 months agoExplorer | Level 3
Hi,
My process is the following:
1. Check if exists
2. If not exists, upload
3. Check if shared link exists
4. If not exists, create shared link
When I have been able to reproduce this, the problem appears after the upload, then step 3 fails, and executing the same process again fails at 1.
import dropbox import os import hashlib # Your Dropbox API access token ACCESS_TOKEN = '' REFRESH_TOKEN = '' APP_KEY = '' APP_SECRET = '' # Initialize the Dropbox client dbx = dropbox.Dropbox( app_key=APP_KEY, app_secret=APP_SECRET, oauth2_refresh_token=REFRESH_TOKEN) def file_already_uploaded(file_path, customer_name): """Check if the file has already been uploaded by comparing content hashes.""" try: hasher = DropboxContentHasher() with open(file_path, 'rb') as f: while True: chunk = f.read(1024) # or whatever chunk size you want if len(chunk) == 0: break hasher.update(chunk) file_hash = hasher.hexdigest() response = dbx.files_list_folder('/' + customer_name) for entry in response.entries: if isinstance(entry, dropbox.files.FileMetadata): metadata = dbx.files_get_metadata( entry.path_lower) if metadata.name == os.path.basename(file_path): if (metadata.content_hash == file_hash): print( f"File '{file_path}' has already been uploaded as '{entry.name}'.") return True else: print( f"File '{file_path}' has been uploaded but the content has changed, deleting it.") dbx.files_delete_v2(entry.path_lower) return False except dropbox.exceptions.ApiError as err: print(f"Failed to list folder contents: {err}") return False def upload_large_file(file_path, customer_name): CHUNK_SIZE = 4 * 1024 * 1024 # 4MB file_size = os.path.getsize(file_path) with open(file_path, 'rb') as f: if file_size <= CHUNK_SIZE: print("Uploading small file in one go...") dbx.files_upload(f.read(), '/' + customer_name) else: print("Uploading large file in chunks...") upload_session_start_result = dbx.files_upload_session_start( f.read(CHUNK_SIZE)) cursor = dropbox.files.UploadSessionCursor(session_id=upload_session_start_result.session_id, offset=f.tell()) commit = dropbox.files.CommitInfo( path='/' + customer_name + '/' + os.path.basename(file_path)) while f.tell() < file_size: print("Uploading chunk... {}%".format( f.tell() / file_size * 100)) if ((file_size - f.tell()) <= CHUNK_SIZE): dbx.files_upload_session_finish( f.read(CHUNK_SIZE), cursor, commit) else: dbx.files_upload_session_append_v2( f.read(CHUNK_SIZE), cursor) cursor.offset = f.tell() print("File uploaded successfully to {}.".format( customer_name + '/' + os.path.basename(file_path))) def create_shared_link_with_password(file_path, customer_name, password): file_name = '/' + customer_name + "/" + os.path.basename(file_path) try: print("Checking if shared link with password already exists...") links = dbx.sharing_list_shared_links(file_name, direct_only=True) for link in links.links: if link.link_permissions.require_password: print(f"Shared link with password already exists: {link.url}") return link.url except dropbox.exceptions.ApiError as err: print("Link not found") shared_link_metadata = dbx.sharing_create_shared_link_with_settings( file_name, dropbox.sharing.SharedLinkSettings( requested_visibility=dropbox.sharing.RequestedVisibility.password, link_password=password) ) print(f"Shared link with password: {shared_link_metadata.url}") return shared_link_metadata.url def upload_and_share(file_path, customer_name, password): if not file_already_uploaded(file_path, customer_name): upload_large_file(file_path, customer_name) shared_link = create_shared_link_with_password( file_path, customer_name, password) return shared_link if __name__ == '__main__': file_path = '/home/user/Downloads/attachments_20240716_13012111.zip' password = 'your_passwordd' upload_and_share(file_path, "test_customer", password)
- Jay4 months agoDropbox Staff
As you're using a custom app you created, I'm moving this to the appropriate section of the Community.
- Vlopez14 months agoExplorer | Level 3
Regarding internet connectivity.
I have this running on a remote device, I am connected to it through ssh.I can run the tests from my office through the internet, and I see the failures live, so the internet connection is not stopped at any point. It is a cell network with upload/download 1Mbps.
I am not sure if this may be a scenario like this: https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Connection-timeouts/m-p/375263/highlight/true#M21071
Where I am getting blacklisted for a couple of minutes.
Running the tests locally I have been able to upload 5 times without issue, but on the remote device I had it fail 50% of the time in 6 tests.
- Здравко4 months agoLegendary | Level 20
Unfortunately, I cannot reproduce your issue Vlopez1. In spite of some imperfection in your code, listing shared links works.
There is only one error:
Vlopez1 wrote:...
... hasher = DropboxContentHasher() ... def upload_large_file(file_path, customer_name): ... dbx.files_upload(f.read(), '/' + customer_name) ...
Where and how did this DropboxContentHasher come in your code? Also, is the file path formatted correctly everywhere (did you test with small files)? 🙂
You should jump in deep what's going on in your case. Try inspect your network traffic and see if there is some "noise" during the failing methods calls and what exactly.
Good luck.
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