Handle two input ports in components

[mohandass-pat]

Hi. I want to implement a process that needs to be implemented from two inputs. For example there are three components. In component A I will give 1 in component B I will give 2, And I will map these outputs to Component C. in the component C 1 + 2 = 3 like this process has to performed. So how can I access the data from both input ports at the same time. Kindly help me on this. Any examples on this scenario
and also how to access the data from graph in port.

"connections": [ { "data": "packet", "tgt": { "process": "repeater", "port": "test" } },

in this graph "data" will be sent to repeater component test. How to get that value. will it be setup while calling msgflo-setup command?

Thanks in advance :)

[jonnor]

Msgflo has no synchronization mechanism between multiple queues. Because there are no general syncronization mechanisms, and msgflo has no store for state. So if you need to synchronize data-streams at runtime, put the data needed into a database, and use messages with references to the data as the 'event' to trigger the next computation on.

For IIPs, which are known at graph startup time, and is often used for configuration/parametrizing a component, the data could also be provided on the commandline. The msgflo tools can then use that extract this from the graph and provide it to the processes at startup.
Unfortunately for msgflo-nodejs this is not supported right now, see #7