Howdy. Is it possible to call/use the Update/Increment Constant smart service

Not to my knowledge, but is it suitable for you to simply loop the user into the process, update the constant, then go back into the SAIL form (all chained)?

What would be involved in exposing its api in sail? Yes it's all possible in a sail+node setup, however it would be better/cleaner (at least in my case) to take care of the constant usage where it's needed (eg on a button).

Hi hajji, Consider using the startprocesswriter function.

Thanks but that'd be a bind to a process. Can't be done a server side function which has input and output?

But to the best of my knowledge, this is the only way to interact with a process model from the sail code.

Hi Haji, you can make use of a table in the database instead of the constant. And then you can update/fetch the respective value from that table (instead of a constant) directly from your sail code using a custom function named - executequery() with which you can perform any SQL related operations.

And another way which I can think of if you want to call a process model directly from your sail code (and not make use of any table ) can be by exposing your particular process model (that has update constant smart service) as a web service and then call the webservice directly from the expression rule using the new webservice query function.

Would it also be possible for the plugin to expose some java/functions that can do the update?

If some of the process based approaches above really won't work for your use case, you could probably create a plugin to do this. The ContentService interface and Constant class in the APIs (forum.appian.com/.../) might be a good place to start your investigation if you choose to go this route.

It's worth noting that introducing custom plugins should be avoided when possible since it adds additional levels of complexity to your application.