Microservices are an architectural and organizational approach to software development where software is composed of small independent services that communicate over well-defined APIs. Microservices architectures make applications easier to scale and faster to develop, enabling innovation and accelerating time-to-market for new features. We’ll explore best practices for microservice design and the data design needed to support microservices, using Aurora, RDS, DynamoDB, DAX, ElastiCache, and Lambda and we’ll do a design exercise in converting a monolithic solution to a microservices design.

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Data Design for Microservices
Bill Baldwin – Global Enterprise Support Lead – bbaldwin@amazon.com
Kathy Gibbs – Sr. Technical Account Manager – katgibbs@amazon.com

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Microservices
Can you define what Microservices is?

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Adrian discussed the Evolution of Business Logic

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Database characteristics
• Referential integrity
with strong
consistency,
transactions, and
hardened scale
GraphKey-value Document
;
Relational
Low-latency, key-based
queries with high
throughput and fast
ingestion of data
Indexing and storing
documents with support
for query on any
property
Creating and navigating
relations between data
easily and quickly
Complex query support
via SQL
Simple query methods
with filters
Simple query with filters,
projections, and
aggregates
Easily express queries in
terms of relations

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The New De-Normal

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Lab Prep
https://s3-us-west-2.amazonaws.com/nyc-loft/Lab4.xlsx
• Divide into groups of 6-8 people
• Each group is a consulting company
• You have been hired to to advise on Microservices

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About the Customer
https://s3-us-west-2.amazonaws.com/nyc-loft/Lab4.xlsx
• Customer is a successful bricks-and-mortar retailer
• Old e-commerce system based on Oracle
• They want replace it with something modern
• They want something “Amazon-like”

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About the Spreadsheet (ER diagram)
https://s3-us-west-2.amazonaws.com/nyc-loft/Lab4.xlsx
“Channel Affiliate”
• 3rd party company
• selling through the client’s e-commerce site
“Promotion”
• Various sales
• Buy-one-get-one
• Other commercial promotions
• Each needs a start and stop time.

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Deliverables
At the next customer meeting …
“What will you ask the client?”
“What will you present, if anything?”

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