feat: add netlify-blobs driver (#337)

Co-authored-by: Pooya Parsa <pooya@pi0.io>

.gitignore

@@ -9,3 +9,4 @@ tmp
 /test.*
 __*
 .vercel
+.netlify

docs/content/6.drivers/netlify-blobs.md

@@ -0,0 +1,55 @@
+# Netlify Blobs
+
+Store data in a [Netlify Blobs](https://docs.netlify.com/blobs/overview/) store. This is supported in both edge and Node.js runtimes, as well at during builds.
+
+::alert{type="warning"}
+Netlify Blobs are in beta.
+::
+
+```js
+import { createStorage } from "unstorage";
+import netlifyBlobsDriver from "unstorage/drivers/netlify-blobs";
+
+const storage = createStorage({
+  driver: netlifyBlobsDriver({
+    name: "blob-store-name",
+  }),
+});
+```
+
+You can create a deploy-scoped store by settings `deployScoped` option to `true`. This will mean that the deploy only has access to its own store. The store is managed alongside the deploy, with the same deploy previews, deletes, and rollbacks.
+
+```js
+import { createStorage } from "unstorage";
+import netlifyBlobsDriver from "unstorage/drivers/netlify-blobs";
+
+const storage = createStorage({
+  driver: netlifyBlobsDriver({
+    deployScoped: true,
+  }),
+});
+```
+
+To use, you will need to install `@netlify/blobs` as dependency or devDependency in your project:
+
+```json
+{
+  "devDependencies": {
+    "@netlify/blobs": "*"
+  }
+}
+```
+
+**Options:**
+
+- `name` - The name of the store to use. It is created if needed. This is required except for deploy-scoped stores.
+- `deployScoped` - If set to `true`, the store is scoped to the deploy. This means that it is only available from that deploy, and will be deleted or rolled-back alongside it.
+- `siteID` - Required during builds, where it is available as `constants.SITE_ID`. At runtime this is set automatically.
+- `token` - Required during builds, where it is available as `constants.NETLIFY_API_TOKEN`. At runtime this is set automatically.
+
+**Advanced options:**
+
+These are not normally needed, but are available for advanced use cases or for use in unit tests.
+
+- `apiURL`
+- `edgeURL`

package.json

@@ -64,6 +64,7 @@
     "@azure/storage-blob": "^12.17.0",
     "@capacitor/preferences": "^5.0.6",
     "@cloudflare/workers-types": "^4.20231025.0",
+    "@netlify/blobs": "^6.2.0",
     "@planetscale/database": "^1.11.0",
     "@types/ioredis-mock": "^8.2.5",
     "@types/jsdom": "^21.1.5",
@@ -103,6 +104,7 @@
     "@azure/keyvault-secrets": "^4.7.0",
     "@azure/storage-blob": "^12.16.0",
     "@capacitor/preferences": "^5.0.6",
+    "@netlify/blobs": "^6.2.0",
     "@planetscale/database": "^1.11.0",
     "@upstash/redis": "^1.23.4",
     "@vercel/kv": "^0.2.3",
@@ -130,6 +132,9 @@
     "@capacitor/preferences": {
       "optional": true
     },
+    "@netlify/blobs": {
+      "optional": true
+    },
     "@planetscale/database": {
       "optional": true
     },

src/drivers/netlify-blobs.ts

@@ -0,0 +1,114 @@
+import { createError, createRequiredError, defineDriver } from "./utils";
+import { getStore, getDeployStore } from "@netlify/blobs";
+import type {
+  Store,
+  BlobResponseType,
+  SetOptions,
+  ListOptions,
+} from "@netlify/blobs";
+import { fetch } from "ofetch";
+
+const DRIVER_NAME = "netlify-blobs";
+
+type GetOptions = { type?: BlobResponseType };
+
+export interface NetlifyBaseStoreOptions {
+  /** The name of the store to use. It is created if needed. This is required except for deploy-scoped stores. */
+  name?: string;
+  /** If set to `true`, the store is scoped to the deploy. This means that it is only available from that deploy, and will be deleted or rolled-back alongside it. */
+  deployScoped?: boolean;
+  /** Required during builds, where it is available as `constants.SITE_ID`. At runtime this is set automatically. */
+  siteID?: string;
+  /** Required during builds, where it is available as `constants.NETLIFY_API_TOKEN`. At runtime this is set automatically. */
+  token?: string;
+  /** Used for advanced use cases and unit tests */
+  apiURL?: string;
+  /** Used for advanced use cases and unit tests */
+  edgeURL?: string;
+}
+
+export interface NetlifyDeployStoreOptions extends NetlifyBaseStoreOptions {
+  name?: never;
+  deployScoped: true;
+  deployID?: string;
+}
+
+export interface NetlifyNamedStoreOptions extends NetlifyBaseStoreOptions {
+  name: string;
+  deployScoped?: false;
+}
+
+export type NetlifyStoreOptions =
+  | NetlifyDeployStoreOptions
+  | NetlifyNamedStoreOptions;
+
+export default defineDriver(
+  ({ deployScoped, name, ...opts }: NetlifyStoreOptions) => {
+    let store: Store;
+
+    const getClient = () => {
+      if (!store) {
+        if (deployScoped) {
+          if (name) {
+            throw createError(
+              DRIVER_NAME,
+              "deploy-scoped stores cannot have a name"
+            );
+          }
+          store = getDeployStore({ fetch, ...opts });
+        } else {
+          if (!name) {
+            throw createRequiredError(DRIVER_NAME, "name");
+          }
+          // Ensures that reserved characters are encoded
+          store = getStore({ name: encodeURIComponent(name), fetch, ...opts });
+        }
+      }
+      return store;
+    };
+
+    return {
+      name: DRIVER_NAME,
+      options: {},
+      async hasItem(key) {
+        return getClient().getMetadata(key).then(Boolean);
+      },
+      getItem: (key, tops?: GetOptions) => {
+        // @ts-expect-error has trouble with the overloaded types
+        return getClient().get(key, tops);
+      },
+      getMeta(key) {
+        return getClient().getMetadata(key);
+      },
+      getItemRaw(key, topts?: GetOptions) {
+        // @ts-expect-error has trouble with the overloaded types
+        return getClient().get(key, { type: topts?.type ?? "arrayBuffer" });
+      },
+      setItem(key, value, topts?: SetOptions) {
+        return getClient().set(key, value, topts);
+      },
+      setItemRaw(key, value: string | ArrayBuffer | Blob, topts?: SetOptions) {
+        return getClient().set(key, value, topts);
+      },
+      removeItem(key) {
+        return getClient().delete(key);
+      },
+      async getKeys(
+        base?: string,
+        tops?: Omit<ListOptions, "prefix" | "paginate">
+      ) {
+        return (await getClient().list({ ...tops, prefix: base })).blobs.map(
+          (item) => item.key
+        );
+      },
+      async clear(base?: string) {
+        const client = getClient();
+        return Promise.allSettled(
+          (await client.list({ prefix: base })).blobs.map((item) =>
+            client.delete(item.key)
+          )
+        ).then(() => {});
+      },
+    };
+  }
+);

src/index.ts

@@ -21,6 +21,7 @@ export const builtinDrivers = {
   lruCache: "unstorage/drivers/lru-cache",
   memory: "unstorage/drivers/memory",
   mongodb: "unstorage/drivers/mongodb",
+  netlifyBlobs: "unstorage/drivers/netlify-blobs",
   overlay: "unstorage/drivers/overlay",
   planetscale: "unstorage/drivers/planetscale",
   redis: "unstorage/drivers/redis",
@@ -71,6 +72,9 @@ export type BuiltinDriverOptions = {
   lruCache: ExtractOpts<(typeof import("./drivers/lru-cache"))["default"]>;
   memory: ExtractOpts<(typeof import("./drivers/memory"))["default"]>;
   mongodb: ExtractOpts<(typeof import("./drivers/mongodb"))["default"]>;
+  netlifyBlobs: ExtractOpts<
+    (typeof import("./drivers/netlify-blobs"))["default"]
+  >;
   overlay: ExtractOpts<(typeof import("./drivers/overlay"))["default"]>;
   planetscale: ExtractOpts<(typeof import("./drivers/planetscale"))["default"]>;
   redis: ExtractOpts<(typeof import("./drivers/redis"))["default"]>;

test/drivers/netlify-blobs.test.ts

@@ -0,0 +1,48 @@
+import { afterAll, beforeAll, describe } from "vitest";
+import driver from "../../src/drivers/netlify-blobs";
+import { testDriver } from "./utils";
+import { BlobsServer } from "@netlify/blobs";
+import { resolve } from "path";
+import { rm, mkdir } from "node:fs/promises";
+
+describe("drivers: netlify-blobs", async () => {
+  const dataDir = resolve(__dirname, "tmp/netlify-blobs");
+  await rm(dataDir, { recursive: true, force: true }).catch(() => {});
+  await mkdir(dataDir, { recursive: true });
+
+  let server: BlobsServer;
+  const token = "mock";
+  const siteID = "1";
+  beforeAll(async () => {
+    server = new BlobsServer({
+      directory: dataDir,
+      debug: !true,
+      token,
+      port: 8971,
+    });
+    await server.start();
+  });
+
+  testDriver({
+    driver: driver({
+      name: "test",
+      edgeURL: `http://localhost:8971`,
+      token,
+      siteID,
+    }),
+  });
+
+  testDriver({
+    driver: driver({
+      deployScoped: true,
+      edgeURL: `http://localhost:8971`,
+      token,
+      siteID,
+      deployID: "test",
+    }),
+  });
+
+  afterAll(async () => {
+    await server.stop();
+  });
+});

test/drivers/utils.ts

@@ -91,10 +91,11 @@ export function testDriver(opts: TestOptions) {
     const value = new Uint8Array([1, 2, 3]);
     await ctx.storage.setItemRaw("/data/raw.bin", value);
     const rValue = await ctx.storage.getItemRaw("/data/raw.bin");
-    if (rValue?.length !== value.length) {
-      console.log(rValue);
+    const rValueLen = rValue?.length || rValue?.byteLength;
+    if (rValueLen !== value.length) {
+      console.log("Invalid raw value length:", rValue, "Length:", rValueLen);
     }
-    expect(rValue?.length).toBe(value.length);
+    expect(rValueLen).toBe(value.length);
     expect(Buffer.from(rValue).toString("base64")).toBe(
       Buffer.from(value).toString("base64")
     );