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Fails to retrieve a page from esolangs.org -- gets "The action specified by the URL is invalid" for Query {"meta"=>"siteinfo"} #84

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Nakilon opened this issue Dec 23, 2020 · 3 comments
Open

Fails to retrieve a page from esolangs.org -- gets "The action specified by the URL is invalid" for Query {"meta"=>"siteinfo"} #84

Nakilon opened this issue Dec 23, 2020 · 3 comments

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@Nakilon
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Nakilon commented Dec 23, 2020 

Infoboxer.wiki('https://esolangs.org/').get('Category:Implemented')
=> #<JSON::ParserError: 784: unexpected token at '<!DOCTYPE html>

The page says:

The action specified by the URL is invalid.

Byebug says the request is #<MediaWiktory::Wikipedia::Actions::Query {"meta"=>"siteinfo"}>
@zverok
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zverok commented Dec 23, 2020 

Infoboxer.wiki('https://esolangs.org/w/api.php').get('Category:Implemented')
# => #<Page(title: "Category:Implemented", url: "https://esolangs.org/wiki/Category:Implemented"): The languages in this category ...>

The URL should be the base URL for the API. It can be /w/api.php, or just /api.php, or sometimes /wiki/api.php, so we don't try to guess. Though the error message should definitely be more obvious! (Like, check the most basic response and say "It is not an API endpoint" if it is wrong)

@Nakilon
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Nakilon commented Dec 23, 2020 •
edited

Oh, the /w/api.php wasn't obvious because README says:

# From any wiki with the same engine:
page = Infoboxer.wiki('http://companywiki.com').get('Our Product')

After creating this ticket I used another gem like this:

MediaWiki::Butt.new "https://esolangs.org/w/api.php"

that needs this suffix too but I didn't realise I could come back to the Infoboxer gem with this edit because I didn't even notice it since I'm not generally familiar with Mediawiki API.

Thanks for very quick response. The ticket can be closed if you are not going to keep it as a reminder to improve the error message or something.

@zverok
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zverok commented Dec 23, 2020

Yeah, that was clear once (in docs and errors), and then on one of the last big redesign, it got lost :( Sorry.

I'll keep it as a reminder, yeah.

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@zverok @Nakilon