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if / elif / else ​

Use if / elif / else when your routing logic is priority-ordered.

python
from agently import TriggerFlow, TriggerFlowRuntimeData

flow = TriggerFlow()

def is_high_score(data: TriggerFlowRuntimeData):
    return data.value["score"] >= 90

def is_medium_score(data: TriggerFlowRuntimeData):
    return data.value["score"] >= 80

@flow.chunk("grade_a")
async def grade_a(_: TriggerFlowRuntimeData):
    return "A"

@flow.chunk("grade_b")
async def grade_b(_: TriggerFlowRuntimeData):
    return "B"

@flow.chunk("grade_c")
async def grade_c(_: TriggerFlowRuntimeData):
    return "C"

(
    flow.to(lambda _: {"score": 82})
    .if_condition(is_high_score)
    .to(grade_a)
    .elif_condition(is_medium_score)
    .to(grade_b)
    .else_condition()
    .to(grade_c)
    .end_condition()
    .end()
)

Current best practices ​

  • use named condition functions when the flow needs config export
  • keep condition handlers side-effect free
  • register condition handlers before load_*_flow() if the flow is imported from config
  • putting heavy side effects inside condition handlers
  • expecting anonymous lambda conditions to export to JSON/YAML