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Re: DHIS Server - Setting up a scheduled event data check and update


Hi James,

There are many different ways to do this, and it may or may not be
necessary to access the database at all.

Really any scripting language can be used to automate tasks. Some of the
ones which I know are being used are Bash, NodeJS, Python and R. Likely
there are others out there.   There is no requirement to have a Java
executable by any means, but it of course could be done this way, if you
were so inclined. Anything which can interact with the WebAPI using HTTP
should be fine.

Here is a good example in  NodeJS-
of a task which checks some special Integrity SQL views, and then sends out
a notification if any of them fail.

The basic pattern though is to access some enpoint through the API, process
what you need in your script, and possibly post something back to the
server. The other way, as Pierre points out, would be to call an SQL view
with a cron job through the API, but It would seem not to be really what
you want to do, if you do not want to use PgAgent, which could do the same


On Sun, Nov 29, 2015 at 8:59 AM, Pierre Dane <pierre@xxxxxxxxx> wrote:

> so I suggest using cron with curl to call the sqlview
> On Sunday, 29 November 2015, James Chang <jamesbchang@xxxxxxxxx> wrote:
>> Hi,
>> In DHIS Server, we are trying to create a scheduled task that checks
>> events and update some data in events.
>> We like to avoid using database scheduler (like pgadmin III PgAgent)
>> That leaves us (We think) with:
>>   - cron job with shell script using database sql comments (in file)
>>   - cron job with java executable (and Web API calls within Java)
>> We prefer to do this using Web API.
>> Does that mean 'cron job with java executable' is the only choice we
>> could have for our operation?
>> Any suggestion on other methods that we could use to set up a 'Web API
>> data checking/updating' scheduled task?  (If there is, could you also
>> provide us with example?)
>> Thank you.
> --
> *Pierre Dane*
> Jembi Health Systems
> Software Development Manager
> tel: +27 (0)21 701 0939
> cel: +27 (0)83 680 8274
> email: pierre@xxxxxxxxx
> web: www.jembi.org
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Jason P. Pickering
email: jason.p.pickering@xxxxxxxxx

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