Re: Writing an Open Access handle that will either read/write to the Db2 file or make a REST call

I've written and published a basic handler that uses a web service via
Scott's HTTPAPI - a few years old now but the principals remain the same.
http://www.ibmsystemsmag.com/ibmi/developer/general/oa_rpg/ It used my OA
template as the foundation which can save you a lot of time and effort if
you have not written fo OA before. Details here:
http://ibmsystemsmag.com/ibmi/developer/rpg/open-access-templates/ <
http://ibmsystemsmag.com/ibmi/developer/rpg/open-access-templates/>

Which reminds me - I really must update that to dcl-x data definitions.

Not sure how well you "cache" idea will work unless you can guarantee that
there is never any direct access to the related file. Sound like a problem
waiting to happen.


Jon Paris

www.partner400.com
www.SystemiDeveloper.com

On Jan 14, 2019, at 5:15 PM, Charles Wilt <charles.wilt@xxxxxxxxx>

wrote:

So we've got a requirement to modify our existing RPG applications so

that

for some users, instead of updating a local Db2 file, we need to make

REST

call to post the data to an external server.

Reads will be from the local Db2 table; though we're planning to cache

the

"update" that was posted to the web service. So that we don't have to

wait

for the data to be replicated back to the i. (We considered a Db

trigger,

but that idea was a no-go. Eventually the READs for some users will also
be pointed to the web service)

Anybody ever done or even considered such a handler?

Any tips/tricks/gotchas you can share?

Thanks,
Charles
--
This is the RPG programming on the IBM i (AS/400 and iSeries) (RPG400-L)

mailing list

To post a message email: RPG400-L@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/rpg400-l.

Please contact support@xxxxxxxxxxxx for any subscription related

questions.

Help support midrange.com by shopping at amazon.com with our affiliate

link: https://amazon.midrange.com

--
This is the RPG programming on the IBM i (AS/400 and iSeries) (RPG400-L)
mailing list
To post a message email: RPG400-L@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/rpg400-l.

Please contact support@xxxxxxxxxxxx for any subscription related
questions.

Help support midrange.com by shopping at amazon.com with our affiliate
link: https://amazon.midrange.com