StorePick Product Service Event Poller - Infrastructure¶

Components¶

Component	Description	Ref
<<config_service>>	this is to fetch the configuration from the service json	Configuration(from config service)
<<Lambda>>	Lambda to get events from Product V1 service.	AWS Lambda
<<SSM>>	SSM for Product V1 service.	SSM for Product V1 service
<<Cloudwatch Rule>>	Cloudwatch Rule to trigger lambda	Cloudwatch Rule
<<DynamoDb>>	DynamoDb table to get/update last read event id	DynamoDb Table
<<SNS>>	SNS to publish events for downstream components	SNS Topic
<<Cloudwatch Log Group>>	Cloudwatch log to show logger messages	AWS Cloudwatch Log
<<DLQ>>	DLQ is used to store the messages that failed to processed by SNS	SQS Topic

Configuration(from config service)¶

Config File Name
storepick-product-service-events-poller-lambda-config.json

Value:

{
"EVENTS_API_PAGE_SIZE": 500,
"MAX_EXECUTION_TIME": 540,
"MAX_EVENTS_COUNT": 10000,
"SNS_BATCH_LIMIT": 10,
"SNS_RETURN_PAYLOAD": true,
"EVENTS_WATERMARKS_TABLE": "$ENV.xxwmm.storepick.events.watermarks",
"PRODUCT_SNS_ARN": "arn:aws:sns:eu-west-1:333073960552:sns-euw1-$ENV-storepick-product-service-events-001",
"MORI_BASE_URL": "https://api.morrisons.com",
"GETPRODUCTEVENT_URL": "product/v1/items",
"API_RETRY_COUNT": 5,
"API_RETRY_EXPONENTIAL_BACKOFF": 1000
}

SSM for Product V1 service¶

SSM Name
storepick_hfss_product_service_secret

Value:

{
    "API_KEY": "__EXISTS__",
    "AUTHORISATION": "__EXISTS__"
}

Cloudwatch Rule¶

Environment	Cloudwatch Rule
dev	cwr-euw1-dev-storepick-product-service-events-poller-001
sit	cwr-euw1-sit-storepick-product-service-events-poller-001
prd	cwr-euw1-prd-storepick-product-service-events-poller-001

AWS Lambda¶

Environment	Lambda
dev	lmb-euw1-dev-storepick-product-service-events-poller-trigger-001
sit	lmb-euw1-sit-storepick-product-service-events-poller-trigger-001
prd	lmb-euw1-prd-storepick-product-service-events-poller-trigger-001

DynamoDb Table¶

Environment	DynamoDb Table
dev	dev.xxwmm.storepick.events.watermarks
sit	sit.xxwmm.storepick.events.watermarks
prd	prd.xxwmm.storepick.events.watermarks

SNS Topic¶

Environment	SNS Topic
dev	sns-euw1-dev-storepick-product-service-events-001
sit	sns-euw1-sit-storepick-product-service-events-001
prd	sns-euw1-prd-storepick-product-service-events-001

AWS Cloudwatch Log¶

Environment	Cloudwatch Log Group
dev	lmb-euw1-dev-storepick-product-service-events-poller-trigger-001
sit	lmb-euw1-sit-storepick-product-service-events-poller-trigger-001
prd	lmb-euw1-prd-storepick-product-service-events-poller-trigger-001

SQS Topic¶

Environment	SNS Topic
dev	sqs-euw1-dev-storepick-product-service-events-deadletter-001
sit	sqs-euw1-sit-storepick-product-service-events-deadletter-001
prd	sqs-euw1-prd-storepick-product-service-events-deadletter-001