Conditions

Branch and filter runs without writing glue code.

Branching & filtering#

A condition node evaluates an expression against the run’s data and routes execution accordingly — continue, stop, or take a different path.

Logic nodes#

• logic.condition — boolean branch (if / else).
• logic.switch — route to N labeled branches by a field value.
• logic.merge — join multiple branches back into one object.
• logic.set_variable — stash a value for downstream nodes.
• logic.json_transform — reshape or extract fields with a template.
• logic.code — run Python or JavaScript for anything declarative nodes can’t express.
• logic.sub_workflow — call another workflow and use its output.

Expressions#

Conditions and transforms use expression syntax (JSONata / Jinja2) over the run’s data. Reference upstream outputs the same way you do elsewhere:

{{trigger.label}} = "urgent" and {{trigger.assignee}} is empty

Loops#

Iterate over data or repeat steps:

• logic.foreach — run downstream nodes once per array item.
• logic.for — a fixed number of iterations with a counter.
• logic.while / logic.do_while — repeat while a condition holds.

Human approval#

logic.human_input pauses a run and waits for a person to approve or supply input. The run resumes via a one-time token — see the Runs API resume endpoint.