The CDK Construct Library for AWS::IoT
Project description
AWS IoT Construct Library
---AWS CDK v1 has reached End-of-Support on 2023-06-01. This package is no longer being updated, and users should migrate to AWS CDK v2.
For more information on how to migrate, see the Migrating to AWS CDK v2 guide.
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:
import aws_cdk.aws_iot as iot
import aws_cdk.aws_iot_actions as actions
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:
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 function", # 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:
# func: lambda.Function
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:
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:
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.
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