lambda-events.json

{
  "$schema": "../cdk.schema.json",
  "Description": "A template creates a lambda function which can be invoked by an sns topic",
  "Resources": {
    "MyTopic": {
      "Type": "aws-cdk-lib.aws_sns.Topic"
    },
    "Table": {
      "Type": "aws-cdk-lib.aws_dynamodb.Table",
      "Properties": {
        "partitionKey": {
          "name": "ID",
          "type": "STRING"
        },
        "stream": "NEW_AND_OLD_IMAGES"
      }
    },
    "HelloWorldFunction": {
      "Type": "aws-cdk-lib.aws_lambda.Function",
      "Properties": {
        "handler": "app.hello_handler",
        "runtime": "PYTHON_3_6",
        "code": {
          "aws-cdk-lib.aws_lambda.Code.fromAsset": "examples/lambda-handler"
        },
        "environment": {
          "Param": "f"
        },
        "events": [
          {
            "aws-cdk-lib.aws_lambda_event_sources.DynamoEventSource": [
              { "Ref": "Table" },
              {
                "startingPosition": "TRIM_HORIZON"
              }
            ]
          },
          {
            "aws-cdk-lib.aws_lambda_event_sources.ApiEventSource": [
              "GET",
              "/hello"
            ]
          },
          {
            "aws-cdk-lib.aws_lambda_event_sources.ApiEventSource": [
              "POST",
              "/hello"
            ]
          },
          {
            "aws-cdk-lib.aws_lambda_event_sources.SnsEventSource": {
              "Ref": "MyTopic"
            }
          }
        ]
      }
    }
  }
}