Push to array output variable in subflow

[Bradley Koerner]

In Flow designer, I have an output variable that is an array of objects. Within my subflow, I am iterating through a list of records and performing some operations (assembling data, calling a REST API, etc.) There are a handful of results for each given record, so I want to capture all of those results within my array.

My problem is that, while there is a Flow Logic to "Assign Subflow Outputs", it seems to only allow me to set my output array and/or its individual elements. For each of my records, I want to be able to push to the array. Is that possible?

Basically, I want Flow to be doing something like this: 

while (gr.next()) {
  var result = doThings();
  output.my_array.push(result);
}

But it only appears to let me do this:

while (gr.next()) {
  var result = doSomething();
  output.my_array = result
  // or
  output.my_array[0] = result;
}

It seems to me, only allowing setting of the array or hardcoded indexes completely defeats the purpose of an array.

[OlaN]

Hi,

Look at this video by @Göran WitchDoctor Lundqvist it should help you clarify how to work with complex objects as outputs from a Subflow.

[Bradley Koerner]

That video deals with complex objects inside an action where the action's output is being set by script. That's not what I'm looking for.

I've created a simplified version of what I'm doing in my subflow here:

For each of my records, there are a couple different things that can happen. I want to know the result for each of those records. I want the output of the subflow to look something like this:

[
  {
    record: "INC123456",
    message: "Something happened"
  },
  {
    record: "INC123457",
    message: "Something else happened"
  }
]

But the way that Assign Subflow Outputs appears to work, I'll only get this output from the subflow:

[
  {
    number: "INC999999",
    message: "This is the last record that was iterated on"
  }
]

...because it's just resetting index 0 for each iteration. I want to be able to push to the output array for each iteration. 

[OlaN]

Sorry for the spamming of my first reply.
When I posted, the replies disappeared.. but somehow got saved anyway.

Sadly I don't know if there is a way to push values to an output array the way you described.

The Assign subflow output action, does exactly that, it sets a value.

A workaround would be to build your output into a custom action, which returns an array.object, which you could use to assign the output from your subflow.

[Hitoshi Ozawa]

Hi,

Understood the situation by viewing the flow screenshots.

AFAIK, it's not possible. Subflow is used to return a reply so there's a need to move the loop to the main flow.

Setting output in a subflow within a loop will overwrite the previous output. That's the current specification.