Products Cart Module

Strategie keys/tags par feature pour un flux ecommerce modulaire.

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Products Cart Module

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Objectif

Isoler les lectures/ecritures du panier par feature tout en gardant une invalidation coherente.

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Keys et tags par feature

features/cart/query-keys.ts

import { createFeatureKeys, createFeatureTags } from "@zapaction/core";

export const cartKeys = createFeatureKeys("cart", {
  all: () => [],
  byUser: (userId: string) => ["by-user", userId]
});

export const cartTags = createFeatureTags("cart", {
  byUser: (userId: string) => ["by-user", userId]
});

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Contrats d’action

features/cart/actions.ts

import { defineAction } from "@zapaction/core";
import { z } from "zod";

export const addToCart = defineAction({
  input: z.object({ userId: z.string(), productId: z.string(), qty: z.number().min(1) }),
  output: z.object({ ok: z.literal(true) }),
  tags: ["cart"],
  handler: async () => ({ ok: true })
});