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data_request.rb
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data_request.rb
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class DataRequest
def get(url, &blk)
@buf = NSMutableData.new
@blk = blk
req = NSURLRequest.requestWithURL(NSURL.URLWithString(url))
NSURLConnection.alloc.initWithRequest(req, delegate:self)
end
# Called when we receive a response from the server.
# This can be called multiple times if there are any server redirects in place.
# We reset the length of our data buffer each time this callback is called.
def connection(conn, didReceiveResponse:resp)
@buf.setLength(0)
end
# Called each time data is received from the server.
# This can be called multiple times and we just append the data to our buffer each time.
def connection(conn, didReceiveData:data)
@buf.appendData(data)
end
# Called if there is an error retrieving the data.
# We, basically, just ignore the error. You’d probably want to do something sane in your application.
def connection(conn, didFailWithError:err)
NSLog "Request failed"
end
def connectionDidFinishLoading(conn)
@blk.call(NSString.alloc.initWithData @buf, encoding:NSUTF8StringEncoding)
end
end
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