template.yml

# This is the SAM template that represents the architecture of your serverless application
# https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/serverless-sam-template-basics.html

# The AWSTemplateFormatVersion identifies the capabilities of the template
# https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/format-version-structure.html
AWSTemplateFormatVersion: 2010-09-09
Description: >-
  The application to execute trade for every users

# Transform section specifies one or more macros that AWS CloudFormation uses to process your template
# https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/transform-section-structure.html
Transform: AWS::Serverless-2016-10-31

# Shared configuration for all resources, more in
# https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
  Function:
    # The PermissionsBoundary allows users to safely develop with their function's permissions constrained
    # to their current application. All the functions and roles in this application have to include it and
    # it has to be manually updated when you add resources to your application.
    # More information in https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_boundaries.html
    PermissionsBoundary: !Sub 'arn:${AWS::Partition}:iam::${AWS::AccountId}:policy/${AppId}-${AWS::Region}-PermissionsBoundary'

Parameters:
  AppId:
    Type: String

# Resources declares the AWS resources that you want to include in the stack
# https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/resources-section-structure.html
Resources:
  # Each Lambda function is defined by properties:
  # https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction

  # This is a Lambda function config associated with the source code: sns-payload-logger.js
  snsPayloadLoggerFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: ./
      Handler: src/handlers/sns-payload-logger.snsPayloadLoggerHandler
      Runtime: nodejs10.x
      Description: A Lambda function that logs the payload of messages sent to an associated SNS topic.
      MemorySize: 128
      Timeout: 60
      Policies:
        # Give Lambda basic execution Permission to the snsPayloadLogger
        - AWSLambdaBasicExecutionRole
      Events:
        SimpleTopicEvent:
          Type: SNS
          Properties:
            Topic: !Ref SimpleTopic
  # This is an SNS Topic with all default configuration properties. To learn more about the available options, see
  # https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-sns-topic.html
  SimpleTopic:
    Type: AWS::SNS::Topic