Disable and enable AWS lambda trigger programmatically

问题

Is there a way for us to disable & enable the Lambda trigger programmatically (e.g. for scheduled maintains purposes)?

回答1:

You can disable and enable Lambda triggers by using following approaches with Update Event Source Mapping, based on how you are going to do it.

Using AWS CLI: You can use AWS CLI update-event-source-mapping command with --enabled | --no-enabled parameters.
Using AWS SDK (E.g NodeJS): You can use AWS SDK updateEventSourceMapping method with Enabled: true || false attribute.
Using AWS REST API: You can use AWS REST API UpdateEventSourceMapping with "Enabled": boolean attributes.

Note: You need to grant relevant permission for each of the approach to execute using IAM Roles/Users or temporarily access credentials.

回答2:

It is documented under EventSourceMapping, you specify which event arn should map to a given lambda, it will do the trigger association.

Below is the API using node js,

http://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/Lambda.html#createEventSourceMapping-property

Using CLI: http://docs.aws.amazon.com/cli/latest/reference/lambda/create-event-source-mapping.html

All supported languages have this API as well.

回答3:

Enable/Disable in Java:

AWSLambda client = AWSLambdaClientBuilder.standard().build();
UpdateEventSourceMappingRequest request = new UpdateEventSourceMappingRequest()
    .withUUID(uuid)
    .withFunctionName("myFunction")
    .withEnabled(true) // false to disable
    .withBatchSize(123);
UpdateEventSourceMappingResult response = client.updateEventSourceMapping(request);

In Kotlin:

val client: AWSLambda = AWSLambdaClientBuilder.standard().build()
val request: UpdateEventSourceMappingRequest = UpdateEventSourceMappingRequest()
                .withUUID(uuid)
                .withFunctionName("myFunction")
                .withEnabled(false) // true to enable
                .withBatchSize(10)
val response: UpdateEventSourceMappingResult = client.updateEventSourceMapping(request)

Dependency Needed:

implementation 'com.amazonaws:aws-java-sdk-lambda:1.11.+'

来源：https://stackoverflow.com/questions/46199256/disable-and-enable-aws-lambda-trigger-programmatically

标签

amazon-web-services

aws-lambda