Awesome

serverless-plugin-subscription-filter

Serverless plugin to register AWS CloudWatchLogs subscription filter.

Installation

npm install --save-dev serverless-plugin-subscription-filter

plugins:
  - serverless-plugin-subscription-filter

Usage

This plugin is external serverless events. You can write settings like serverless events.

functions:
  hello:
    handler: handler.hello
    events:
      - subscriptionFilter:
          stage: prod
          logGroupName: /cloud-trail
          filterPattern: '{ $.errorMessage != "" }'

Supports also multiple subscription filter.

functions:
  hello:
    handler: handler.hello
    events:
      - subscriptionFilter:
          stage: prod
          logGroupName: /cloud-trail
          filterPattern: '{ $.errorMessage != "" }'
      - subscriptionFilter:
          stage: prod
          logGroupName: /my-log-group
          filterPattern: '{ $.errorMessage != "" }'
  goodbye:
    handler: handler.goodbye
    events:
      - subscriptionFilter:
          stage: dev
          logGroupName: /my-log-group2
          filterPattern: Exception

About each properties

property	description
stage	The deployment stage with serverless. Because only one subscription filter can be set for one LogGroup.
logGroupName	The log group to associate with the subscription filter.
filterPattern	The filtering expressions that restrict what gets delivered to the destination AWS resource. Sorry, if you want to use '{ $.xxx = "yyy" }' syntax, then surround the whole in ''(single quote).