topic 08

APIs

REST, gRPC, GraphQL, webhooks, versioning, rate limits.

✦ 8 units ◆ 45 lessons
Start here Modeling REST resources: nouns the client needs, not your verbs or tables
6
unit 06

GraphQL N+1 and the cost of nested resolvers

Why GraphQL turns one HTTP request into 1000 database calls, how DataLoader fixes it with a single event-loop tick, and the complexity / depth / persisted-query controls that keep public APIs alive.

The summit · orbit reached

You can see the whole topic now.

Every unit, from the underground to the orbit. APIs is one constellation in the atlas — climb another topic and watch the next one light up.

Unlocks above ↑ Databases Indexes, MVCC, isolation levels, sharding, migrations. Back to orbit Return to the atlas See every topic as one chart