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POCan open-uri be used across rack applications?
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2013-09-06T07:42:55.513
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2014-03-06T07:37:26.017
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2013-09-06T07:51:32.463
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Currently I have a Sinatra web app & a Grape API, the idea being to implement the Sinatra app in such a way that the web app is just another API consumer. In my config.ru I have this: <pre><code>run Rack::Cascade.new [API, Application] </code></pre> <code>API</code> is the Grape app & <code>Application</code> is the Sinatra app. I am using open-uri to try to grab the JSON from the Grape api in a Sinatra route. I am using thin. I am omitting the /uri after the port number for ease of reading, the Grape & Sinatra apps work independently, I will explain further in a moment <code>open("http://localhost")</code> returns: <pre><code>#<StringIO:0x007fbeab1b2e68 @base_uri=#<URI::HTTP:0x007fbeab1d47e8 URL:http://localhost>, @meta= {"content-type"=>"text/html; charset=utf8", "x-pow-template"=>"welcome", "date"=>"Fri, 06 Sep 2013 07:29:15 GMT", "connection"=>"keep-alive", "transfer-encoding"=>"chunked"}, @status=["200", "OK"]> </code></pre> However, if I <code>open("http://localhost:9292")</code> the application hangs. I feel like maybe something is blocking I/O, like perhaps its waiting for itself to connect to itself but I am not sure enough of whats going on under the hood to really be sure. If I point pow at it, spin it up at <code>project.dev</code> & then spin it up with <code>rackup</code> so I have two instances I can use <code>open("http://project.dev/what/ever/url/i_need")</code> & it works like a charm. So the problem seems to be somewhere in pointing open-uri at itself... I think... Is this because of the <code>Rack::Cascade</code>? is this a problem with <code>thin</code>? or maybe the with <code>open-uri</code>? Is this just completely the wrong way to approach this problem? I am open to just about any solution however I would prefer to keep it as simple as possible, with minimal external requires as I intent to use this pattern frequently. Let me know if any additional information is required & I will do my best to provide it.
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<sinatra><rack><open-uri><grape-api>
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Can open-uri be used across rack applications?
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1. USDon Graziano
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