aws-cdk.aws-iot 1.132.0

The CDK Construct Library for AWS::IoT

AWS IoT Construct Library

---

All classes with the Cfn prefix in this module (CFN Resources) are always stable and safe to use.

The APIs of higher level constructs in this module are experimental and under active development. They are subject to non-backward compatible changes or removal in any future version. These are not subject to the Semantic Versioning model and breaking changes will be announced in the release notes. This means that while you may use them, you may need to update your source code when upgrading to a newer version of this package.

---

AWS IoT Core lets you connect billions of IoT devices and route trillions of messages to AWS services without managing infrastructure.

Installation

Install the module:

$ npm i @aws-cdk/aws-iot

Import it into your code:

# Example automatically generated. See https://github.com/aws/jsii/issues/826
import aws_cdk.aws_iot as iot

TopicRule

Create a topic rule that give your devices the ability to interact with AWS services. You can create a topic rule with an action that invoke the Lambda action as following:

# Example automatically generated without compilation. See https://github.com/aws/jsii/issues/826
import aws_cdk.aws_iot as iot
import aws_cdk.aws_iot_actions as actions
import aws_cdk.aws_lambda as lambda_

func = lambda_.Function(self, "MyFunction",
    runtime=lambda_.Runtime.NODEJS_14_X,
    handler="index.handler",
    code=lambda_.Code.from_inline("""
            exports.handler = (event) => {
              console.log("It is test for lambda action of AWS IoT Rule.", event);
            };""")
)

iot.TopicRule(self, "TopicRule",
    topic_rule_name="MyTopicRule",  # optional
    description="invokes the lambda finction",  # optional
    sql=iot.IotSql.from_string_as_ver20160323("SELECT topic(2) as device_id, timestamp() as timestamp FROM 'device/+/data'"),
    actions=[actions.LambdaFunctionAction(func)]
)

Or, you can add an action after constructing the TopicRule instance as following:

# Example automatically generated without compilation. See https://github.com/aws/jsii/issues/826
topic_rule = iot.TopicRule(self, "TopicRule",
    sql=iot.IotSql.from_string_as_ver20160323("SELECT topic(2) as device_id, timestamp() as timestamp FROM 'device/+/data'")
)
topic_rule.add_action(actions.LambdaFunctionAction(func))

You can also supply errorAction as following, and the IoT Rule will trigger it if a rule's action is unable to perform:

# Example automatically generated without compilation. See https://github.com/aws/jsii/issues/826
import aws_cdk.aws_iot as iot
import aws_cdk.aws_iot_actions as actions
import aws_cdk.aws_logs as logs

log_group = logs.LogGroup(self, "MyLogGroup")

iot.TopicRule(self, "TopicRule",
    sql=iot.IotSql.from_string_as_ver20160323("SELECT topic(2) as device_id, timestamp() as timestamp FROM 'device/+/data'"),
    error_action=actions.CloudWatchLogsAction(log_group)
)

If you wanna make the topic rule disable, add property enabled: false as following:

# Example automatically generated without compilation. See https://github.com/aws/jsii/issues/826
iot.TopicRule(self, "TopicRule",
    sql=iot.IotSql.from_string_as_ver20160323("SELECT topic(2) as device_id, timestamp() as timestamp FROM 'device/+/data'"),
    enabled=False
)

See also @aws-cdk/aws-iot-actions for other actions.