Continue learning

1

Understanding Partition Keys

Learn how DynamoDB decides where items live and why partition keys keep related Pokémon together.

2

Simple Primary Key in Action

Build a table that stores Pokémon by name, then insert and retrieve data using a simple primary key.

3

Fetch All Pokémon

Learn when a full-table Scan is acceptable, what it costs, and how to paginate every 1 MB response safely.

4

Get Your Starter Pokémon

Model trainers and starters so you can fetch the perfect partner Pokémon with a single request.

5

Put Mew into Your Party

Use conditional writes to welcome legendary Pokémon without clobbering existing party data.

6

Update Expression Mastery

Master UpdateExpression syntax to evolve your Pokémon records safely and predictably.

7

Boost Mew's Stats

Fine-tune stats with atomic counters so your mythical partner is always battle ready.

8

Release Mew Back to the Wild

Design safe delete operations that send Pokémon home while protecting the rest of your data.

9

Speaking DynamoDB's Language (Expression Attributes)

Before Johto's advanced patterns, master the two placeholders every expression relies on: ExpressionAttributeValues and ExpressionAttributeNames.

10

The Johto Pokedex (GSIs)

Querying non-primary key attributes efficiently using Global Secondary Indexes without scanning.

11

Finding the Strongest (Sort Keys)

Using Sort Keys in GSIs for ordering and advanced KeyConditionExpressions.

12

Catching Lugia (Conditional Writes)

Use ConditionExpression to prevent duplicate legendary catches and invalid states.

13

Trading with Rival (Transactions)

Execute ACID transactions across multiple items to securely trade Pokémon.

14

Healing Party (Batch Operations)

Fetch multiple Pokémon efficiently, then retry UnprocessedKeys with exponential backoff.

15

Scrolling the Pokegear (Pagination)

Implement pagination using ExclusiveStartKey and LastEvaluatedKey to load lists efficiently.

16

Burn Heal (Time to Live)

Mark temporary status effects for asynchronous TTL cleanup and exclude expired items from application reads.

17

Elite Four Production Review

Turn a working Pokédex into an operable production system by making explicit decisions about scale, recovery, security, and global behavior.