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@notion-headless-cms/cache-r2

v0.2.11

Published

Cloudflare R2 StorageAdapter implementation for notion-headless-cms cache layer

Downloads

2,846

Readme

@notion-headless-cms/cache-r2

Cloudflare R2 をバックエンドとするキャッシュアダプタ + Workers 向けプリセット。 1 つの r2Cache インスタンスで DocumentCacheAdapterImageCacheAdapter の両方を実装する。cloudflarePreset は env binding を自動解決する便利ヘルパー。

インストール

pnpm add @notion-headless-cms/cache-r2 @notion-headless-cms/core

使い方: cloudflarePreset (推奨)

import { createCMS } from "@notion-headless-cms/core";
import { cloudflarePreset } from "@notion-headless-cms/cache-r2";
import { cmsDataSources } from "./generated/nhc-schema";

export default {
  async fetch(req: Request, env: Env, ctx: ExecutionContext) {
    const cms = createCMS({
      ...cloudflarePreset({ env, ttlMs: 5 * 60_000 }),
      dataSources: cmsDataSources,
      waitUntil: ctx.waitUntil.bind(ctx),
    });
    const posts = await cms.posts.getList();
    return Response.json(posts);
  },
};

既定の binding 名

  • DOC_CACHE — KV namespace (ドキュメントキャッシュ)
  • IMG_BUCKET — R2 バケット (画像キャッシュ)
  • NOTION_TOKEN — Notion API トークン (wrangler secret put NOTION_TOKEN)

カスタマイズ:

cloudflarePreset({
  env,
  bindings: { docCache: "MY_KV", imgBucket: "MY_R2" },
});

binding が設定されていなければキャッシュなし (noop) にフォールバック。 NOTION_TOKEN が未設定の場合は CMSError code: "core/config_invalid" を throw。

使い方: r2Cache を直接

import { createCMS } from "@notion-headless-cms/core";
import { r2Cache } from "@notion-headless-cms/cache-r2";
import { cmsDataSources } from "./generated/nhc-schema";

export default {
  async fetch(req: Request, env: { IMG_BUCKET: R2Bucket }) {
    const cache = r2Cache({ bucket: env.IMG_BUCKET });
    const cms = createCMS({
      cache: { document: cache, image: cache, ttlMs: 5 * 60_000 },
      dataSources: cmsDataSources,
    });
    // ...
  },
};

プレフィックスの分離

同じバケットを別プロジェクトと共有する場合は prefix を指定:

r2Cache({ bucket: env.IMG_BUCKET, prefix: "blog/" });

生成されるキー構造:

<prefix>content.json           # リストキャッシュ
<prefix>content/<slug>.json    # 個別アイテム
<prefix>images/<hash>          # 画像バイナリ

API

cloudflarePreset(opts)

| オプション | 型 | 説明 | |---|---|---| | env | CloudflarePresetEnv | Workers の env | | ttlMs | number (任意) | SWR の TTL (ミリ秒) | | bindings | { docCache?, imgBucket? } (任意) | binding 名をカスタム |

戻り値: Pick<CreateCMSOptions, "cache"> (createCMS にスプレッドで渡す)

r2Cache(opts)

| オプション | 型 | 説明 | |---|---|---| | bucket | R2BucketLike | R2 バケットバインディング | | prefix | string (任意) | キャッシュキーのプレフィックス |

戻り値: DocumentCacheAdapter<T> & ImageCacheAdapter を同時に満たすインスタンス。

  • R2BucketLike — R2 バケットの構造的インターフェース。@cloudflare/workers-types に直接依存しない
  • R2ObjectLike — R2 オブジェクトの構造的インターフェース
  • CloudflarePresetEnv — cloudflarePreset が読む env の最小構成

関連パッケージ