Perform operations in parallel using branches

Executes a workflow that has multiple and different sets of steps at the same time by placing them in parallel branches.

Explore further

For detailed documentation that includes this code sample, see the following:

• Execute workflow steps in parallel

Code sample

YAML

main:
  params: [input]
  steps:
    - init:
        assign:
          - userProfile: {}
          - recentItems: []
    - enrichUserData:
        parallel:
          shared: [userProfile, recentItems]  # userProfile and recentItems are shared to make them writable in the branches
          branches:
            - getUserProfileBranch:
                steps:
                  - getUserProfile:
                      call: http.get
                      args:
                        url: '${"https://example.com/users/" + input.userId}'
                      result: userProfile
            - getRecentItemsBranch:
                steps:
                  - getRecentItems:
                      try:
                        call: http.get
                        args:
                          url: '${"https://example.com/items?userId=" + input.userId}'
                        result: recentItems
                      except:
                        as: e
                        steps:
                          - ignoreError:
                              assign:  # continue with an empty list if this call fails
                                - recentItems: []

What's next

To search and filter code samples for other Google Cloud products, see the Google Cloud sample browser.