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Contents
require 'ddtrace/ext/http'
module Datadog
module Contrib
# Rails module includes middlewares that are required for Rails to be properly instrumented.
module Rails
# This is only here to catch errors, the Rack module does something very similar, however,
# since it's not in the same place in the stack, when the Rack middleware is called,
# error is already swallowed and handled by Rails so we miss the call stack, for instance.
class ExceptionMiddleware
def initialize(app)
@app = app
end
def call(env)
@app.call(env)
# rubocop:disable Lint/RescueException
# Here we really want to catch *any* exception, not only StandardError,
# as we really have no clue of what is in the block,
# and it is user code which should be executed no matter what.
# It's not a problem since we re-raise it afterwards so for example a
# SignalException::Interrupt would still bubble up.
rescue Exception => e
tracer = ::Rails.configuration.datadog_trace.fetch(:tracer)
span = tracer.active_span()
span.set_error(e) unless span.nil?
raise e
end
end
end
end
end
Version data entries
6 entries across 6 versions & 2 rubygems