46 lines
1.1 KiB
Ruby
46 lines
1.1 KiB
Ruby
module Gitlab
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module Metrics
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# Rack middleware for tracking Rails and Grape requests.
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class RackMiddleware
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def initialize(app)
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@app = app
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end
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# env - A Hash containing Rack environment details.
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def call(env)
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trans = transaction_from_env(env)
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retval = nil
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begin
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retval = trans.run { @app.call(env) }
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rescue Exception => error # rubocop: disable Lint/RescueException
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trans.add_event(:rails_exception)
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raise error
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# Even in the event of an error we want to submit any metrics we
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# might've gathered up to this point.
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ensure
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trans.finish
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end
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retval
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end
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def transaction_from_env(env)
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trans = WebTransaction.new(env)
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trans.set(:request_uri, filtered_path(env), false)
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trans.set(:request_method, env['REQUEST_METHOD'], false)
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trans
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end
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private
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def filtered_path(env)
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ActionDispatch::Request.new(env).filtered_path.presence || env['REQUEST_URI']
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end
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end
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end
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end
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