Chapter 5

Frameworks & Patterns

The Go side demystified — Gin, GORM, CRUD, and the Handler → Service pattern that every resource follows.

~36 min total4 lessonsAssignment

By the end of this chapter you'll be able to

Explain what Gin and GORM are, in one sentence each
Walk a request from URL → handler → service → DB → response
Write the four CRUD operations by hand and reason about why each line is there
Decide whether new logic belongs in the handler or the service

Lessons

Module: The frameworks

What is Gin?

The HTTP router behind every Grit API — routes, context, middleware.

8measy

What is GORM?

The ORM that turns Go structs into SQL — models, queries, relations.

9mmedium

Module: The pattern

Handler → Service pattern

Why we split, what goes where, and how to keep handlers thin.

9mmedium

CRUD end-to-end

GET / POST / PATCH / DELETE — written by hand, line by line.

10mmedium

Chapter assignment

Hand-write a Note resource

Without using `grit generate`, hand-write a Note resource: model, service, handler, routes. List notes, create one, update, delete. Then run `grit generate resource Note` in a fresh project and DIFF the two — note where your code differs from the generated. One paragraph in notes.md on what you learned.

See success criteria

Lesson 1 takes ~8 min.

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ch.4: Code Generation & Type Sync ch.6: The Batteries