Switch
Overview
Switch is single path branching operator. You can create multiple execution branches, but Pipedream will execute the first branch that matches the configured rules. The order in which rules are defined will affect the path of execution.
Switch is useful when you need to make a branching decision based on the value of a single input variable (e.g., based on the path of an inbound request). You can define the input variable once and then branch based on the value(s). If you need to branch based on the values of multiple input variables use the If/Else operator.
Capabilities
- Define cases to conditionally execute one of many branches
- Define the expression to evaluate once and configure cases to compare values (use boolean operators to combine muliple rules for each case)
- Use the Default case as a fallback
- Merge and continue execution in the parent flow after the branching operation
If you disable the Default branch and there are no matching cases, the workflow will continue execution in the parent workflow after the end phase of the Switch block
The Switch operator is a control flow Block with start and end phases. Learn more about Blocks.
Getting Started
Generate a test event
Add a trigger and generate an event to help you build and test your workflow:
Add the Switch control flow block
Click the + button to add a step to the canvas and select Switch from the Control Flow section on the right. In the “start” phase, configure rules for a case.
IMPORTANT: If you disable the Default condition and an event does not match any of the rules, the workflow will continue to the next step after the Switch section. If you want to end workflow execution if no other conditions evaluate to true, enable the Default condition and add a Terminate Workflow action.
Optionally add additional cases
To add additional cases, click the + button.
Test and build along the execution path
Test the start phase and add a step to the branch in the execution path,
Optionally merge and continue the parent flow
Test the end phase to export the results of the last step in the execution path. This makes them available to reference in the parent flow.
Scaffold alternate paths
You may add steps to alternate paths and test them. Pipedream will signal that the results may not be reliable if the branch is not in the execution path.
Validate alternate paths
Generate or select alternate events to trigger and validate alternate paths.
Deploy and test the live workflow
Deploy the workflow and trigger it to inspect the executions.
