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Allows workflows to iterate over a collection of items, executing a defined set of subtasks for each item in the collection. This task type is instrumental in handling scenarios such as batch processing, data transformation, and repetitive operations across datasets.

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Properties

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for.each
string
default:"item"
The name of the variable used to store the current item being enumerated.
​
for.in
string
required
A runtime expression used to get the collection to enumerate.
​
for.at
string
default:"index"
The name of the variable used to store the index of the current item being enumerated.
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while
string
A runtime expression that represents the condition, if any, that must be met for the iteration to continue.
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do
map[string, task]
required
The task(s) to perform for each item in the collection.

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Example

document:
  dsl: '1.0.3'
  namespace: test
  name: for-example
  version: '0.1.0'
do:
  - checkup:
      for:
        each: pet
        in: .pets
        at: index
      while: .vet != null
      do:
        - waitForCheckup:
            listen:
              to:
                one:
                  with:
                    type: com.fake.petclinic.pets.checkup.completed.v2
            output:
              as: '.pets + [{ "id": $pet.id }]'

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