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template.yaml
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AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: |
tms_back_end
Sample SAM Template for tms_back_end
# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
Function:
Timeout: 100
MemorySize: 128
Parameters:
SystemUrl:
Type: String
Description: The URL of my angular frontend application
Default: https://main.d3aar2vaqxwbk9.amplifyapp.com
DummyPlaceholder:
Type: String
Description: Dummy placeholder
Default: dummy holder
Resources:
HelloWorldFunction:
Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
Properties:
CodeUri: hello_world/
Handler: app.lambda_handler
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
DUMMY_PLACEHOLDER: !Ref DummyPlaceholder # will take it out
Policies:
- AWSLambdaBasicExecutionRole
Events:
HelloWorld:
Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
Properties:
Path: /hello
Method: get
ApiGatewayApi:
Type: AWS::Serverless::Api
Properties:
StageName: prod
# Cors: "'*'"
Cors:
AllowMethods: '''POST, GET, PUT, OPTIONS, DELETE'''
AllowHeaders: '''X-Forwarded-For,Content-Type,X-Amz-Date,Authorization,X-Api-Key,X-Amz-Security-Token,access-control-allow-origin,access-control-allow-credentials'''
AllowOrigin: '''https://main.d3aar2vaqxwbk9.amplifyapp.com'''
AllowCredentials: true
Auth:
AddDefaultAuthorizerToCorsPreflight: false
DefaultAuthorizer: CognitoAuthorizer
Authorizers:
CognitoAuthorizer:
UserPoolArn: !GetAtt CognitoUserPool.Arn
Identity:
Header: Authorization
CognitoUserPool:
Type: AWS::Cognito::UserPool
Properties:
UserPoolName: !Sub ${AWS::StackName}-UserPool
AdminCreateUserConfig:
AllowAdminCreateUserOnly: false
AutoVerifiedAttributes:
- email
UsernameAttributes:
- email
Schema:
- Name: email
AttributeDataType: String
Mutable: true
Required: true
- Name: name
AttributeDataType: String
Mutable: true
Required: true
- Name: role
AttributeDataType: String
Mutable: true
Required: false
StringAttributeConstraints:
MaxLength: '256'
MinLength: '1'
Policies:
PasswordPolicy:
MinimumLength: 8
RequireLowercase: true
RequireNumbers: true
RequireUppercase: true
LambdaConfig:
PostConfirmation: !GetAtt PostConfirmationLambda.Arn
CustomMessage: !GetAtt CustomMessageFunction.Arn
EmailConfiguration:
EmailSendingAccount: COGNITO_DEFAULT
# First, define the Log Group
PostConfirmationLogGroup:
Type: AWS::Logs::LogGroup
Properties:
LogGroupName: !Sub /aws/lambda/${AWS::StackName}-PostConfirmationLambda-a # added -a
RetentionInDays: 30 # Adjust retention period as needed
PostConfirmationLambda:
Type: AWS::Serverless::Function
DependsOn: PostConfirmationLogGroup
Properties:
CodeUri: user_management/
Handler: app.post_confirmation_handler
FunctionName: !Sub ${AWS::StackName}-PostConfirmationLambda
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
SUBSCRIPTION_WORKFLOW_ARN: !Ref UserSubscriptionWorkflow
Policies:
- Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- cognito-idp:AdminAddUserToGroup
- cognito-idp:ListUsers
- cognito-idp:ListUsersInGroup
- cognito-idp:AdminCreateUser
- cognito-idp:AdminDeleteUser
- cognito-idp:AdminUpdateUserAttributes
- cognito-idp:AdminGetUser
- cognito-idp:AdminListGroupsForUser
- cognito-idp:AdminRemoveUserFromGroup
- cognito-idp:*
Resource: '*'
- Effect: Allow
Action:
- states:StartExecution
Resource: !Ref UserSubscriptionWorkflow
- Effect: Allow
Action:
- logs:*
Resource:
- !Sub arn:aws:logs:${AWS::Region}:${AWS::AccountId}:log-group:/aws/lambda/*
# Step Functions State Machine
UserSubscriptionWorkflow:
Type: AWS::Serverless::StateMachine
Properties:
Type: EXPRESS
Role: !GetAtt UserSubscriptionWorkflowRole.Arn
Logging:
Level: ALL
IncludeExecutionData: true
Destinations:
- CloudWatchLogsLogGroup:
LogGroupArn: !GetAtt UserSubscriptionWorkflowLogGroup.Arn
Definition:
StartAt: DetermineUserType
States:
DetermineUserType:
Type: Choice
Choices:
- Variable: $.role
StringEquals: Admin
Next: AdminSubscriptions
Default: RegularUserSubscriptions
AdminSubscriptions:
Type: Parallel
Branches:
- StartAt: SubscribeToClosedAdmin
States:
SubscribeToClosedAdmin:
Type: Task
Resource: !GetAtt SubscribeUserToTopicFunction.Arn
Parameters:
TopicArn: !Ref ClosedTasksNotificationTopic
Protocol: email
Endpoint.$: $.email
Role: Admin
End: true
- StartAt: SubscribeToCompletionAdmin
States:
SubscribeToCompletionAdmin:
Type: Task
Resource: !GetAtt SubscribeUserToTopicFunction.Arn
Parameters:
TopicArn: !Ref TasksCompletionNotificationTopic
Protocol: email
Endpoint.$: $.email
Role: Admin
End: true
End: true
RegularUserSubscriptions:
Type: Parallel
Branches:
- StartAt: SubscribeToAssignmentRegular
States:
SubscribeToAssignmentRegular:
Type: Task
Resource: !GetAtt SubscribeUserToTopicFunction.Arn
Parameters:
TopicArn: !Ref TasksAssignmentNotificationTopic
Protocol: email
Endpoint.$: $.email
Role.$: $.role
End: true
- StartAt: SubscribeToDeadlineRegular
States:
SubscribeToDeadlineRegular:
Type: Task
Resource: !GetAtt SubscribeUserToTopicFunction.Arn
Parameters:
TopicArn: !Ref TasksDeadlineNotificationTopic
Protocol: email
Endpoint.$: $.email
Role.$: $.role
End: true
- StartAt: SubscribeToClosedRegular
States:
SubscribeToClosedRegular:
Type: Task
Resource: !GetAtt SubscribeUserToTopicFunction.Arn
Parameters:
TopicArn: !Ref ClosedTasksNotificationTopic
Protocol: email
Endpoint.$: $.email
Role.$: $.role
End: true
- StartAt: SubscribeToReopenedRegular
States:
SubscribeToReopenedRegular:
Type: Task
Resource: !GetAtt SubscribeUserToTopicFunction.Arn
Parameters:
TopicArn: !Ref ReopenedTasksNotificationTopic
Protocol: email
Endpoint.$: $.email
Role.$: $.role
End: true
- StartAt: SubscribeToCompletionRegular
States:
SubscribeToCompletionRegular:
Type: Task
Resource: !GetAtt SubscribeUserToTopicFunction.Arn
Parameters:
TopicArn: !Ref TasksCompletionNotificationTopic
Protocol: email
Endpoint.$: $.email
Role.$: $.role
End: true
End: true
UserSubscriptionWorkflowRole:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Principal:
Service: states.amazonaws.com
Action: sts:AssumeRole
ManagedPolicyArns:
- arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
Policies:
- PolicyName: StepFunctionsLogDelivery
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- logs:CreateLogDelivery
- logs:GetLogDelivery
- logs:UpdateLogDelivery
- logs:DeleteLogDelivery
- logs:ListLogDeliveries
- logs:PutResourcePolicy
- logs:DescribeResourcePolicies
- logs:DescribeLogGroups
Resource: '*'
- PolicyName: CloudWatchLogsAccess
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- logs:CreateLogStream
- logs:PutLogEvents
Resource:
- !GetAtt UserSubscriptionWorkflowLogGroup.Arn
- !Sub ${UserSubscriptionWorkflowLogGroup.Arn}:*
- PolicyName: LambdaInvocation
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- lambda:InvokeFunction
Resource: !GetAtt SubscribeUserToTopicFunction.Arn
# CloudWatch Log Group for Step Functions
UserSubscriptionWorkflowLogGroup:
Type: AWS::Logs::LogGroup
Properties:
RetentionInDays: 30
# Lambda function to handle the subscription process
SubscribeUserToTopicFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: user_management/
Handler: app.subscribe_the_user
Runtime: python3.12
Architectures:
- x86_64
Policies:
- SNSCrudPolicy:
TopicName: '*'
- Statement:
- Effect: Allow
Action:
- logs:CreateLogGroup
- logs:CreateLogStream
- logs:PutLogEvents
- logs:PutRetentionPolicy
Resource:
- !Sub arn:aws:logs:${AWS::Region}:${AWS::AccountId}:log-group:/aws/lambda/*
- Effect: Allow
Action:
- sns:Subscribe
- sns:SetSubscriptionAttributes
- sns:GetSubscriptionAttributes
- sns:ListSubscriptionsByTopic
Resource: '*'
- Effect: Allow
Action:
- sns:ListTopics
Resource: '*'
Environment:
Variables:
ASSIGNMENT_TOPIC_ARN: !Ref TasksAssignmentNotificationTopic
DEADLINE_TOPIC_ARN: !Ref TasksDeadlineNotificationTopic
CLOSED_TOPIC_ARN: !Ref ClosedTasksNotificationTopic
REOPENED_TOPIC_ARN: !Ref ReopenedTasksNotificationTopic
COMPLETION_TOPIC_ARN: !Ref TasksCompletionNotificationTopic
# DUMMY_PLACEHOLDER: !Ref DummyPlaceholder
# SNS Topics
TasksAssignmentNotificationTopic:
Type: AWS::SNS::Topic
Properties:
TopicName: !Sub ${AWS::StackName}-TasksAssignmentNotificationTopic-a
TasksDeadlineNotificationTopic:
Type: AWS::SNS::Topic
Properties:
TopicName: !Sub ${AWS::StackName}-TasksDeadlineNotificationTopic-a
ClosedTasksNotificationTopic:
Type: AWS::SNS::Topic
Properties:
TopicName: !Sub ${AWS::StackName}-ClosedTasksNotificationTopic-a
ReopenedTasksNotificationTopic:
Type: AWS::SNS::Topic
Properties:
TopicName: !Sub ${AWS::StackName}-ReopenedTasksNotificationTopic-a
TasksCompletionNotificationTopic:
Type: AWS::SNS::Topic
Properties:
TopicName: !Sub ${AWS::StackName}-TasksCompletionNotificationTopic-a
# User Pool Client
UserPoolClient:
Type: AWS::Cognito::UserPoolClient
Properties:
UserPoolId: !Ref CognitoUserPool
ClientName: !Sub ${AWS::StackName}-client
GenerateSecret: false
AllowedOAuthFlows:
- code
- implicit
AllowedOAuthFlowsUserPoolClient: true
AllowedOAuthScopes:
- email
- openid
- profile
CallbackURLs:
# - http://localhost:4200/authorize # will change this later
- https://main.d3aar2vaqxwbk9.amplifyapp.com/authorize
LogoutURLs:
# - http://localhost:4200/ # will change this later
- https://main.d3aar2vaqxwbk9.amplifyapp.com
SupportedIdentityProviders:
- COGNITO
ExplicitAuthFlows:
- ALLOW_USER_PASSWORD_AUTH
- ALLOW_USER_SRP_AUTH
- ALLOW_REFRESH_TOKEN_AUTH
PreventUserExistenceErrors: ENABLED
# Identity Pool
IdentityPool:
Type: AWS::Cognito::IdentityPool
Properties:
IdentityPoolName: !Sub ${AWS::StackName}-IdentityPool
AllowUnauthenticatedIdentities: false
CognitoIdentityProviders:
- ClientId: !Ref UserPoolClient
ProviderName: !GetAtt CognitoUserPool.ProviderName
ServerSideTokenCheck: true
UserPoolDomain:
Type: AWS::Cognito::UserPoolDomain
Properties:
Domain: !Sub ${AWS::StackName}-${AWS::Region}-${AWS::AccountId} # More unique domain, must be globally unique
UserPoolId: !Ref CognitoUserPool
# DynamoDB Table for Tasks
TasksTable:
Type: AWS::DynamoDB::Table
Properties:
TableName: !Sub ${AWS::StackName}-tasks-table
AttributeDefinitions:
- AttributeName: task_id
AttributeType: S
- AttributeName: responsibility
AttributeType: S
- AttributeName: deadline
AttributeType: S
KeySchema:
- AttributeName: task_id
KeyType: HASH
GlobalSecondaryIndexes:
- IndexName: UserTasksIndex
KeySchema:
- AttributeName: responsibility
KeyType: HASH
- AttributeName: deadline
KeyType: RANGE
Projection:
ProjectionType: ALL
BillingMode: PAY_PER_REQUEST
# IAM Roles
AdminRole:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Principal:
Federated: cognito-identity.amazonaws.com
Action: sts:AssumeRoleWithWebIdentity
Condition:
StringEquals:
cognito-identity.amazonaws.com:aud: !Ref IdentityPool
ForAnyValue:StringLike:
cognito-identity.amazonaws.com:amr: authenticated
Policies:
- PolicyName: AdminPolicy
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- dynamodb:PutItem
- dynamodb:GetItem
- dynamodb:UpdateItem
- dynamodb:DeleteItem
- dynamodb:Query
- dynamodb:Scan
Resource: !GetAtt TasksTable.Arn
- Effect: Allow
Action:
- sns:Publish
- sns:Subscribe
- sns:Unsubscribe
Resource: '*'
TeamMemberRole:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Principal:
Federated: cognito-identity.amazonaws.com
Action: sts:AssumeRoleWithWebIdentity
Condition:
StringEquals:
cognito-identity.amazonaws.com:aud: !Ref IdentityPool
ForAnyValue:StringLike:
cognito-identity.amazonaws.com:amr: authenticated
Policies:
- PolicyName: TeamMemberPolicy
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- dynamodb:GetItem
- dynamodb:Query
- dynamodb:Scan
- dynamodb:PutItem
- dynamodb:UpdateItem
Resource: !GetAtt TasksTable.Arn
- Effect: Allow
Action:
- sns:Publish
Resource: !Ref TasksCompletionNotificationTopic
# Identity Pool Role Attachment
IdentityPoolRoleAttachment:
Type: AWS::Cognito::IdentityPoolRoleAttachment
Properties:
IdentityPoolId: !Ref IdentityPool
Roles:
authenticated: !GetAtt CognitoAuthRole.Arn
unauthenticated: !GetAtt CognitoUnauthRole.Arn
RoleMappings:
userpool1:
IdentityProvider: !Sub ${CognitoUserPool.ProviderName}:${UserPoolClient}
AmbiguousRoleResolution: Deny
Type: Rules
RulesConfiguration:
Rules:
- Claim: cognito:groups
MatchType: Contains
RoleARN: !GetAtt AdminRole.Arn
Value: Admin
- Claim: cognito:groups
MatchType: Contains
RoleARN: !GetAtt TeamMemberRole.Arn
Value: TeamMember
# Cognito Authentication Roles
CognitoAuthRole:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Principal:
Federated: cognito-identity.amazonaws.com
Action: sts:AssumeRoleWithWebIdentity
Condition:
StringEquals:
cognito-identity.amazonaws.com:aud: !Ref IdentityPool
ForAnyValue:StringLike:
cognito-identity.amazonaws.com:amr: authenticated
Policies:
- PolicyName: CognitoAuthorizedPolicy
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- mobileanalytics:PutEvents
- cognito-sync:*
Resource: '*'
CognitoUnauthRole:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Principal:
Federated: cognito-identity.amazonaws.com
Action: sts:AssumeRoleWithWebIdentity
Condition:
StringEquals:
cognito-identity.amazonaws.com:aud: !Ref IdentityPool
ForAnyValue:StringLike:
cognito-identity.amazonaws.com:amr: unauthenticated
Policies:
- PolicyName: CognitoUnauthorizedPolicy
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Deny
Action: '*'
Resource: '*'
AdminGroup:
Type: AWS::Cognito::UserPoolGroup
Properties:
GroupName: Admin
UserPoolId: !Ref CognitoUserPool
Description: Administrator group with full access
Precedence: 0
RoleArn: !GetAtt AdminRole.Arn # Link the AdminRole to Admin group
TeamMemberGroup:
Type: AWS::Cognito::UserPoolGroup
Properties:
GroupName: TeamMember
UserPoolId: !Ref CognitoUserPool
Description: Team member group with limited access
Precedence: 1
RoleArn: !GetAtt TeamMemberRole.Arn # Link the TeamMemberRole to TeamMember group
PostConfirmationLambdaPermission:
Type: AWS::Lambda::Permission
Properties:
Action: lambda:InvokeFunction
FunctionName: !Ref PostConfirmationLambda
Principal: cognito-idp.amazonaws.com
SourceArn: !GetAtt CognitoUserPool.Arn
OnboardUserRole:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Principal:
Service: lambda.amazonaws.com
Action: sts:AssumeRole
ManagedPolicyArns:
- arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
Policies:
- PolicyName: !Sub ${AWS::StackName}-OnboardUserPolicy
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- cognito-idp:AdminCreateUser
- cognito-idp:AdminAddUserToGroup
- cognito-idp:ListUsers
Resource: !GetAtt CognitoUserPool.Arn
- Effect: Allow
Action:
- states:StartExecution
Resource: !GetAtt UserSubscriptionWorkflow.Arn
OnboardUserFunction:
Type: AWS::Serverless::Function
Properties:
Role: !GetAtt OnboardUserRole.Arn
CodeUri: user_management/
# Handler: app.lambda_handler
Handler: app.onboard_user
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
SYSTEM_URL: !Ref SystemUrl
USER_POOL_ID: !Ref CognitoUserPool
SUBSCRIPTION_WORKFLOW_ARN: !Ref UserSubscriptionWorkflow
Policies:
- CognitoUserPoolAdminPolicy: {}
- StepFunctionsExecutePolicy:
StateMachineArn: !GetAtt UserSubscriptionWorkflow.Arn
Events:
OnboardAPI:
Type: Api
Properties:
Path: /users
Method: post
RestApiId: !Ref ApiGatewayApi
Tags:
purpose: testing purpose
CustomMessageFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: user_management/
Handler: app.custom_message
# add function name
FunctionName: !Sub ${AWS::StackName}-CustomMessageFunction
Runtime: python3.12
Architectures:
- x86_64
Timeout: 100
Environment:
Variables:
# Add any environment variables needed
POWERTOOLS_SERVICE_NAME: custom-message
Policies:
- Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- cognito-idp:*
Resource: '*' # this can change to !GetAtt CognitoUserPool.Arn
# Add permission for Cognito to invoke the Lambda
CustomMessagePermission:
Type: AWS::Lambda::Permission
Properties:
Action: lambda:InvokeFunction
FunctionName: !GetAtt CustomMessageFunction.Arn
Principal: cognito-idp.amazonaws.com
SourceArn: !GetAtt CognitoUserPool.Arn
ListUserFunction:
Type: AWS::Serverless::Function
Properties:
Role: !GetAtt OnboardUserRole.Arn
CodeUri: user_management/
Handler: app.get_the_users
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
USER_POOL_ID: !Ref CognitoUserPool
USER_POOL_CLIENT_ID: !Ref UserPoolClient
Policies:
- CognitoUserPoolAdminPolicy: {}
Events:
GetUsersAPI:
# New event for GET /users
Type: Api
Properties:
Path: /users
Method: get
RestApiId: !Ref ApiGatewayApi
Tags:
purpose: testing purpose
GetTasksFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: hello_world/
Handler: app.get_the_task
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
TASKS_TABLE: !Ref TasksTable
Policies:
- AWSLambdaBasicExecutionRole
- DynamoDBCrudPolicy:
TableName: !Ref TasksTable
Events:
GetMockAPI:
Type: Api
Properties:
Path: /mock
Method: get
RestApiId: !Ref ApiGatewayApi
Tags:
purpose: testing
CreateTaskFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: hello_world/
Handler: app.create_the_task
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
TASKS_TABLE: !Ref TasksTable
TASK_QUEUE_URL: !Ref TaskAssignmentQueue
ASSIGNMENT_TOPIC_ARN: !Ref TasksAssignmentNotificationTopic
Policies:
- AWSLambdaBasicExecutionRole
- DynamoDBCrudPolicy:
TableName: !Ref TasksTable
- SQSSendMessagePolicy:
QueueName: !GetAtt TaskAssignmentQueue.QueueName
- SNSPublishMessagePolicy:
TopicName: !GetAtt TasksAssignmentNotificationTopic.TopicName
Events:
CreateTaskAPI:
Type: Api
Properties:
Path: /mock
Method: post
RestApiId: !Ref ApiGatewayApi
Tags:
purpose: testing
UpdateTaskFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: hello_world/
Handler: app.update_the_task
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
TASKS_TABLE: !Ref TasksTable
TASK_COMPLETION_TOPIC: !Ref TasksCompletionNotificationTopic
CLOSED_TASKS_TOPIC: !Ref ClosedTasksNotificationTopic
DEADLINE_NOTIFICATION_TOPIC: !Ref TasksDeadlineNotificationTopic
EXPIRED_TASKS_QUEUE: !Ref ExpiredTasksQueue
SYSTEM_URL: !Ref SystemUrl
Policies:
- AWSLambdaBasicExecutionRole
- DynamoDBCrudPolicy:
TableName: !Ref TasksTable
- SNSPublishMessagePolicy:
TopicName: !GetAtt TasksCompletionNotificationTopic.TopicName
- CloudWatchLogsFullAccess # Add logging permissions
Events:
UpdateTaskAPI:
Type: Api
Properties:
Path: /mock/{taskId}
Method: put
RestApiId: !Ref ApiGatewayApi
Tags:
purpose: testing purpose
DeleteTaskFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: hello_world/
Handler: app.delete_the_task
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
TASKS_TABLE: !Ref TasksTable
Policies:
- AWSLambdaBasicExecutionRole
- DynamoDBCrudPolicy:
TableName: !Ref TasksTable
Events:
DeleteTaskAPI:
Type: Api
Properties:
Path: /mock/{taskId}
Method: delete
RestApiId: !Ref ApiGatewayApi
Tags:
purpose: testing
GetTaskByIdFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: hello_world/
Handler: app.get_the_task_by_id
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
TASKS_TABLE: !Ref TasksTable
Policies:
- AWSLambdaBasicExecutionRole
- DynamoDBCrudPolicy:
TableName: !Ref TasksTable
Events:
GetTaskById:
Type: Api
Properties:
Path: /mock/{taskId}
Method: get
RestApiId: !Ref ApiGatewayApi
Tags:
purpose: testing
GetUserTasksFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: hello_world/
Handler: app.get_the_user_tasks
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
TASKS_TABLE: !Ref TasksTable
Policies:
- DynamoDBCrudPolicy:
TableName: !Ref TasksTable
Events:
GetUserTasksAPI:
Type: Api
Properties:
Path: /users/{userId}/tasks
Method: get
RestApiId: !Ref ApiGatewayApi
Tags:
purpose: testing
ReopenTaskFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: hello_world/
Handler: app.reopen_the_task
FunctionName: !Sub ${AWS::StackName}-ReopenTaskFunction
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
TASKS_TABLE: !Ref TasksTable
REOPENED_TOPIC_ARN: !Ref ReopenedTasksNotificationTopic
# DUMMY_PLACEHOLDER: !Ref DummyPlaceholder # will take it out
Policies:
- DynamoDBCrudPolicy:
TableName: !Ref TasksTable
- SNSPublishMessagePolicy:
TopicName: !GetAtt ReopenedTasksNotificationTopic.TopicName
- CloudWatchLogsFullAccess # Add logging permissions
Events:
ReopenTaskAPI:
Type: Api
Properties:
Path: /mock/{taskId}/reopen
Method: post
RestApiId: !Ref ApiGatewayApi
Tags:
purpose: testing
# Dead Letter Queue for handling "expired tasks" in a system
ExpiredTasksDLQ:
Type: AWS::SQS::Queue
Properties:
QueueName: !Sub ${AWS::StackName}-ExpiredTasksDLQ
# SQS Queue for expired tasks
ExpiredTasksQueue:
Type: AWS::SQS::Queue
Properties:
QueueName: !Sub ${AWS::StackName}-ExpiredTasksQueue-a
VisibilityTimeout: 300
RedrivePolicy:
deadLetterTargetArn: !GetAtt ExpiredTasksDLQ.Arn
maxReceiveCount: 3
DeadlineCheckerFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: hello_world/
Handler: app.check_the_deadline
Runtime: python3.12
Architectures:
- x86_64
Environment:
Variables:
TASKS_TABLE: !Ref TasksTable
DEADLINE_TOPIC_ARN: !Ref TasksDeadlineNotificationTopic
DEADLINE_QUEUE_URL: !Ref DeadlineNotificationQueue
EXPIRED_TASKS_QUEUE: !Ref ExpiredTasksQueue
SYSTEM_URL: !Ref SystemUrl
DUMMY_PLACEHOLDER: !Ref DummyPlaceholder # will take it out
Policies:
- DynamoDBCrudPolicy:
TableName: !Ref TasksTable
# - SNSPublishMessagePolicy:
# TopicName: !GetAtt TasksDeadlineNotificationTopic.TopicName
- SQSSendMessagePolicy:
# QueueName: !GetAtt ExpiredTasksQueue.QueueName
QueueName: !GetAtt DeadlineNotificationQueue.QueueName
- SQSSendMessagePolicy:
QueueName: !GetAtt ExpiredTasksQueue.QueueName
- CloudWatchLogsFullAccess # Add logging permissions
# EventBridge rule to trigger deadline checker
DeadlineCheckerRule:
Type: AWS::Events::Rule
Properties:
# Description: "Trigger deadline checker every hour"
# ScheduleExpression: "rate(1 hour)", "rate(5 minutes)", rate(1 min)
Description: Trigger deadline checker every three minute
ScheduleExpression: rate(1 day) # for the purpose of demo # rate(1 hour) # Changed from 1 hour, rate(1 day)
State: ENABLED
Targets:
- Arn: !GetAtt DeadlineCheckerFunction.Arn
Id: DeadlineCheckerTarget
DeadlineCheckerPermission:
Type: AWS::Lambda::Permission
Properties:
Action: lambda:InvokeFunction
FunctionName: !Ref DeadlineCheckerFunction
Principal: events.amazonaws.com
SourceArn: !GetAtt DeadlineCheckerRule.Arn
# Step Function for handling expired tasks
ExpiredTasksWorkflow:
Type: AWS::Serverless::StateMachine
Properties:
DefinitionSubstitutions:
TasksTable: !Ref TasksTable