Parse Process to Process Event

RE: Parse Process to Process Event

josecarvalho — Tue, 10 Nov 2020 15:16:22 GMT

Is it best practice have a synch. sub-process that waits for an external event and then returns the result to the main process? Instead of having the main process itself waiting for the vent?

The event will came from an external (non Appian) app that sends the event to Appian using web api.

RE: Parse Process to Process Event

Stefan Helzle — Tue, 10 Nov 2020 10:16:31 GMT

We are currently in a project situations which heavily relies on a message bus. Each incoming message just starts a process which checks content and then initiates the correct other process. There is no need to have any active process instances to which you send a message. At least not in our design ...

RE: Parse Process to Process Event

Richard Michaelis — Tue, 10 Nov 2020 09:24:32 GMT

you dont need to send it then.
You are using your subprocess event just for triggering and transfering data to the subprocess.
Both are basically done by the core functions of a subprocess node.

please check the following link for subprocess funcitonality:
docs.appian.com/.../Sub-Process_Activity.html

Are you sending it as web api between two applications?

RE: Parse Process to Process Event

josecarvalho — Mon, 09 Nov 2020 13:08:15 GMT

Assuming I change to a sub-processes approach, how can I send this event (which is coming to Appian using an Web API that I've exposed) to the sub-processes?

RE: Parse Process to Process Event

Richard Michaelis — Mon, 09 Nov 2020 13:05:58 GMT

I think it was a question which had more the content like "why not using sub-processes instead of messaging?"
You can give your variables just to the specific sub process quite easy

RE: Parse Process to Process Event

josecarvalho — Mon, 09 Nov 2020 09:13:02 GMT

I use the process A as the main process that execute a few steps, then it needs to wait for an external signal. The signal I need comes from our external enterprise messaging system. So, I have this process B that receives all the signals from a given enterprise messaging flow, checks the message content for potencial match and if it's match, I send the message to process A that continues with business flow.

RE: Parse Process to Process Event

Stefan Helzle — Sat, 07 Nov 2020 20:20:52 GMT

Why do you send messages between these processes?

RE: Parse Process to Process Event

josecarvalho — Fri, 06 Nov 2020 16:52:15 GMT

I just found another way of doing it. Usnig a CDT to send the message between processes. I would rather prefer to use a generic json message, but this will do it.

If someone have a better way of doing it, please share...