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Bad Gateway errors #165

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denismaier opened this issue Aug 16, 2023 · 5 comments
Open

Bad Gateway errors #165

denismaier opened this issue Aug 16, 2023 · 5 comments

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@denismaier
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I've started getting "Bad gateway" errors in a script that previously was working flawlessly.

pyzotero.zotero_errors.HTTPError:
Code: 504
URL: https://api.zotero.org/groups/1234567890/items/top?itemType=book&limit=100&start=300
Method: GET
Response: <html>
<head><title>504 Gateway Time-out</title></head>
<body>
<center><h1>504 Gateway Time-out</h1></center>
</body>
</html>

How does pyzotero handle these kinds of errors? Do I need to handle the error catching in my script, or is there a way to let pyzotero retry whatever it was trying to do?
@urschrei
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You'll need to catch the HTTPError exception and handle the retry logic yourself – Pyzotero only retries 429 errors as there isn't really a one-size-fits-all approach to HTTP errors beyond that, IMO.

@denismaier
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Ok. thanks. I'll have a look. (Only thing that gives me headaches is that I'm using the everything retrieving method, and the error occurs after a couple of successfull retrievals, and I don't know how to resume where things went wrong instead of making a completely new start.)

@urschrei
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Owner

Since the error returns the URL, you could extract the start parameter (300) in your example above, and use that as input for whichever top query you were running – they should all accept e.g. a start=300 param.

@denismaier
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Author

Sounds good---but are the successful requests preserved somewhere so I can just add to them?

@urschrei
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Owner

I'll have to think about it, but I think that's going to be very difficult…

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2 participants
@urschrei @denismaier