On Tue, Feb 12, 2013 at 9:10 PM, Ari <[email protected]> wrote:
> How does one bootstrap web apps comprised of ring + compojure (and/or
> aleph) + hbase/mongodb? Is there a best practice or recommended way? For
> example, in Rails based apps a series of predetermined "initialization"
> files are executed to fulfill various tasks, i.e. connect to dbs, message
> queues, active background jobs, etc. Thanks.
>
I've solved it by creating a bootstrap-function in my handler.clj, that
inits/bootstraps
the required components/namespaces in turn, like this:
(defn bootstrap! []
(scheduler/bootstrap!)
(mongo/bootstrap!))
...and passing it to ring's init-param in my project.clj, like this:
:ring {:init myapp.handler/bootstrap!
...}
I came up with this in the heat of the moment when I realized that I needed
a one-time bootstrapping step at startup, so by no means would I tout this
as "the one proper way" to do it.
My application is not big enough that this is really a concern for me, but
I'm
not that enticed by adding direct dependencies to everything that needs
bootstrapping in my handler.clj.
As a somewhat nicer solution, I considered separating out the
handler/bootstrap!-
function into a separate bootstrap.clj that would pull in the required
namespaces
and have handler.clj depend only on that.
I'd love to hear how other people solved this, and thoughts in general.
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