01
Write the code
Every concept becomes an editable challenge, not another passive video.
Interactive AWS courses
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Hands-on lessons for DynamoDB and AppSync. Write code, test your understanding, and learn the patterns behind dependable AWS systems.
33 practical lessons•Browser-based editor•Progress saved automatically
Live lesson
Wire your first
AppSync resolver.
Complete one focused task. The checks update as you type, so you always know what to fix next.
Use a GetItem operation
Build the DynamoDB key
resolver.jsJavaScript
export function request(ctx) {\n return {\n operation: 'GetItem',\n key: {\n id: util.dynamodb.toDynamoDB(\n ctx.args.id\n ),\n },\n };\n}1 of 2 checks complete Try lesson
DynamoDB · AppSync · GraphQLDiscover
Choose your path
Two systems.
One way to learn.
DynamoDB
15 questsDesign keys, query access patterns, work with indexes, and coordinate safe writes through guided database missions.
AWS SDK v3 · GSIs · Transactions · Pagination
AppSync
18 questsUnderstand the service, shape GraphQL contracts, connect data, secure and stream updates, then operate and deploy the API.
GraphQL · JS resolvers · Authorization · Realtime · Operations
How it works
Less watching.
More understanding.
02
Get instant feedback
Small, focused checks show what works and what still needs attention.
03
Build real intuition
Progress from API fundamentals to patterns used in production systems.
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