LambdaInvokeAction

class aws_cdk.aws_iotevents_actions.LambdaInvokeAction(func)

Bases: object

(experimental) The action to write the data to an AWS Lambda function.

Stability

experimental

ExampleMetadata

infused

Example:

import aws_cdk.aws_iotevents as iotevents
import aws_cdk.aws_iotevents_actions as actions
import aws_cdk.aws_lambda as lambda_

# func: lambda.IFunction


input = iotevents.Input(self, "MyInput",
    input_name="my_input",  # optional
    attribute_json_paths=["payload.deviceId", "payload.temperature"]
)

warm_state = iotevents.State(
    state_name="warm",
    on_enter=[iotevents.Event(
        event_name="test-enter-event",
        condition=iotevents.Expression.current_input(input),
        actions=[actions.LambdaInvokeAction(func)]
    )],
    on_input=[iotevents.Event( # optional
        event_name="test-input-event",
        actions=[actions.LambdaInvokeAction(func)])],
    on_exit=[iotevents.Event( # optional
        event_name="test-exit-event",
        actions=[actions.LambdaInvokeAction(func)])]
)
cold_state = iotevents.State(
    state_name="cold"
)

# transit to coldState when temperature is less than 15
warm_state.transition_to(cold_state,
    event_name="to_coldState",  # optional property, default by combining the names of the States
    when=iotevents.Expression.lt(
        iotevents.Expression.input_attribute(input, "payload.temperature"),
        iotevents.Expression.from_string("15")),
    executing=[actions.LambdaInvokeAction(func)]
)
# transit to warmState when temperature is greater than or equal to 15
cold_state.transition_to(warm_state,
    when=iotevents.Expression.gte(
        iotevents.Expression.input_attribute(input, "payload.temperature"),
        iotevents.Expression.from_string("15"))
)

iotevents.DetectorModel(self, "MyDetectorModel",
    detector_model_name="test-detector-model",  # optional
    description="test-detector-model-description",  # optional property, default is none
    evaluation_method=iotevents.EventEvaluation.SERIAL,  # optional property, default is iotevents.EventEvaluation.BATCH
    detector_key="payload.deviceId",  # optional property, default is none and single detector instance will be created and all inputs will be routed to it
    initial_state=warm_state
)
Parameters

func (IFunction) – the AWS Lambda function to be invoked by this action.

Stability

experimental

Methods

bind(_scope, *, role)

(experimental) Returns the AWS IoT Events action specification.

Parameters
  • _scope (Construct) –

  • role (IRole) – (experimental) The IAM role assumed by IoT Events to perform the action.

Stability

experimental

Return type

ActionConfig