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The underlying connection was closed error.
Hi,
I'm using DropBox API v2 to get folders and files from user account. For that I'm using "files/list_folder", "files/list_folder/continue" endpoints and also I'm using recursive: true for ro...
Greg-DB
Dropbox Community Moderator
Dropbox Community ModeratorI'll be happy to help with any issues you're having with the Dropbox API, but I'll need some more information. Please reply with:
- the name and version number of the SDK/library you are using, if any
- the steps to reproduce the issue, including relevant code snippet(s), but don't include any access or refresh token(s)
- the full text of any error or unexpected output
Thanks for the quick response . I'm not using any sdk just I'm using c# HttpWebRequest with API endpoints.
Find the below endpoints and breif description of the code .
endpoint : https://api.dropbox.com/2/files/list_folder
and adding {"path":"","recursive":true} to request stream
headers: Dropbox-API-Select-User:{{userId}}
if response contains "has_more" then using the below endpoint
endpoint : https://api.dropbox.com/2/files/list_folder/continue
{cursor:cursorid} to request stream
headers: Dropbox-API-Select-User:{{userId}}
to download files I'm using
endpoint: https://api-content.dropbox.com/2/files/download
{"path":"rev:{revisionId}"}Regarding the error messages after running for sometime(more than 1 day) I got "Unable to connect to the remote server , A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond" sometimes and "The underlying connection was closed: A connection that was expected to be kept alive was closed by the server." sometimes.
Thanks,
OTKY
- Greg-DB
Thanks for following up. It's not clear from this why this would be happening, but a few possibilities/other questions:
- Is there anything on your network connection, such as a firewall, proxy, VPN, anti-virus, or other security software that may be interfering with your connection to api-content.dropbox.com?
- When you say it's "running for sometime(more than 1 day)", do you mean the overall process, or an individual request? How long is an individual /2/files/download request taking before failing?
- About what percent of your /2/files/download requests are failing?
- When you say you have "when multiple colletions running at same time", do you mean you have more than one request to /2/files/download running simultaneously? If so, how many?
Hi,
Please find my answers in Italic.
- Is there anything on your network connection, such as a firewall, proxy, VPN, anti-virus, or other security software that may be interfering with your connection to api-content.dropbox.com?
I'm not sure about these. But do these things cause the issue for accounts which have larger number of files?
- When you say it's "running for sometime(more than 1 day)", do you mean the overall process, or an individual request? How long is an individual /2/files/download request taking before failing?
Yes the overall process for downloading the files one by one from DropBox account.
- About what percent of your /2/files/download requests are failing?
Sometimes its failing at "/2/files/download" and sometimes its failing at "files/list_folder/continue" . But in both the cases its not failing immediately.
- When you say you have "when multiple colletions running at same time", do you mean you have more than one request to /2/files/download running simultaneously? If so, how many?
Yes , 2-3 processes running simultaneously .Is there any chances of throttling here ? If there is a throttling issue , will all the processes running at that time will throw errors and stop execution from then?
Thanks,
OTKY.
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