typelets · typelets · Nov 5, 2025 · Nov 5, 2025
diff --git a/package.json b/package.json
@@ -45,6 +45,7 @@
     "@sentry/node": "^10.20.0",
     "@sentry/profiling-node": "^10.20.0",
     "@types/ws": "^8.18.1",
+    "@upstash/redis": "^1.35.6",
     "dotenv": "^17.0.1",
     "dotenv-flow": "^4.1.0",
     "drizzle-orm": "^0.44.2",

diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
diff --git a/src/__tests__/integration.test.ts b/src/__tests__/integration.test.ts
@@ -232,5 +232,45 @@ describe("Test Infrastructure Integration", () => {
 
       expect(updatedNote.type).toBe("diagram");
     });
+
+    it("should create a code note when type is specified", async () => {
+      const user = await createTestUser();
+      const note = await createTestNote(user.id, null, {
+        type: "code",
+        title: "Code Snippet",
+        content: '{"language":"javascript","code":"console.log(\'Hello\');"}',
+      });
+
+      expect(note.type).toBe("code");
+      expect(note.title).toBe("Code Snippet");
+      expect(note.content).toContain("javascript");
+    });
+
+    it("should query notes by code type", async () => {
+      const user = await createTestUser();
+      const folder = await createTestFolder(user.id);
+
+      // Create mixed note types including code
+      await createTestNote(user.id, folder.id, { type: "note", title: "Regular Note" });
+      await createTestNote(user.id, folder.id, { type: "diagram", title: "Diagram" });
+      await createTestNote(user.id, folder.id, {
+        type: "code",
+        title: "Code 1",
+        content: '{"language":"python"}',
+      });
+      await createTestNote(user.id, folder.id, {
+        type: "code",
+        title: "Code 2",
+        content: '{"language":"typescript"}',
+      });
+
+      // Query only code notes
+      const codeNotes = await db.query.notes.findMany({
+        where: eq(notes.type, "code"),
+      });
+
+      expect(codeNotes).toHaveLength(2);
+      expect(codeNotes.every((n) => n.type === "code")).toBe(true);
+    });
   });
 });
diff --git a/src/db/schema.ts b/src/db/schema.ts
@@ -44,7 +44,7 @@ export const notes = pgTable(
 
     title: text("title").notNull(),
     content: text("content").default(""),
-    type: text("type", { enum: ["note", "diagram"] })
+    type: text("type", { enum: ["note", "diagram", "code"] })
       .default("note")
       .notNull(),
 

diff --git a/src/lib/cache.ts b/src/lib/cache.ts
@@ -1,54 +1,28 @@
-import { Cluster, ClusterOptions } from "ioredis";
+import { Redis } from "@upstash/redis";
 import { logger } from "./logger";
 import { db, folders } from "../db";
 import { eq } from "drizzle-orm";
 import * as Sentry from "@sentry/node";
 
-let client: Cluster | null = null;
+let client: Redis | null = null;
 
-export function getCacheClient(): Cluster | null {
-  if (!process.env.VALKEY_HOST) {
-    logger.warn("VALKEY_HOST not configured, caching disabled");
+export function getCacheClient(): Redis | null {
+  if (!process.env.UPSTASH_REDIS_REST_URL || !process.env.UPSTASH_REDIS_REST_TOKEN) {
+    logger.warn("Upstash Redis not configured, caching disabled");
     return null;
   }
 
   if (!client) {
     try {
-      const clusterOptions: ClusterOptions = {
-        dnsLookup: (address, callback) => callback(null, address),
-        redisOptions: {
-          tls: process.env.NODE_ENV === "production" ? {} : undefined,
-          connectTimeout: 5000,
-        },
-        clusterRetryStrategy: (times) => {
-          if (times > 3) {
-            logger.error("Valkey connection failed after 3 retries");
-            return null;
-          }
-          return Math.min(times * 200, 2000);
-        },
-      };
-
-      client = new Cluster(
-        [
-          {
-            host: process.env.VALKEY_HOST,
-            port: parseInt(process.env.VALKEY_PORT || "6379"),
-          },
-        ],
-        clusterOptions
-      );
-
-      client.on("error", (err) => {
-        logger.error("Valkey client error", { error: err.message }, err);
+      client = new Redis({
+        url: process.env.UPSTASH_REDIS_REST_URL,
+        token: process.env.UPSTASH_REDIS_REST_TOKEN,
       });
 
-      client.on("connect", () => {
-        logger.info("Connected to Valkey cluster");
-      });
+      logger.info("Connected to Upstash Redis");
     } catch (error) {
       logger.error(
-        "Failed to initialize Valkey client",
+        "Failed to initialize Upstash Redis client",
         {
           error: error instanceof Error ? error.message : String(error),
         },
@@ -63,9 +37,9 @@ export function getCacheClient(): Cluster | null {
 
 export async function closeCache(): Promise<void> {
   if (client) {
-    await client.disconnect();
+    // Upstash REST client doesn't need explicit disconnection
     client = null;
-    logger.info("Valkey connection closed");
+    logger.info("Upstash Redis connection closed");
   }
 }
 
@@ -85,20 +59,20 @@ export async function getCache<T>(key: string): Promise<T | null> {
     async (span) => {
       const startTime = Date.now();
       try {
-        const data = await cache.get(key);
+        const data = await cache.get<string>(key);
         const duration = Date.now() - startTime;
         const hit = data !== null;
 
         // Set Sentry span attributes
         span.setAttribute("cache.hit", hit);
         if (data) {
-          span.setAttribute("cache.item_size", data.length);
+          span.setAttribute("cache.item_size", JSON.stringify(data).length);
         }
 
         // Log cache operation with metrics
         logger.cacheOperation("get", key, hit, duration);
 
-        return data ? JSON.parse(data) : null;
+        return data ? (JSON.parse(data) as T) : null;
       } catch (error) {
         span.setStatus({ code: 2, message: "error" }); // SPAN_STATUS_ERROR
         logger.cacheError("get", key, error instanceof Error ? error : new Error(String(error)));
@@ -164,16 +138,12 @@ export async function deleteCache(...keys: string[]): Promise<void> {
     async (span) => {
       const startTime = Date.now();
       try {
-        // In cluster mode, keys may hash to different slots
-        // Use pipeline to delete individually (more efficient than separate awaits)
+        // Delete keys individually (Upstash REST API)
         if (keys.length === 1) {
           await cache.del(keys[0]);
         } else {
-          const pipeline = cache.pipeline();
-          for (const key of keys) {
-            pipeline.del(key);
-          }
-          await pipeline.exec();
+          // Use Promise.all for parallel deletion
+          await Promise.all(keys.map((key) => cache.del(key)));
         }
         const duration = Date.now() - startTime;
 
@@ -197,36 +167,31 @@ export async function deleteCachePattern(pattern: string): Promise<void> {
 
   try {
     const keys: string[] = [];
+    let cursor = "0";
+
+    // Use SCAN to find keys matching pattern
+    do {
+      // Upstash REST API supports SCAN
+      const result = await cache.scan(Number(cursor), {
+        match: pattern,
+        count: 100,
+      });
 
-    // In cluster mode, we need to scan all master nodes
-    const nodes = cache.nodes("master");
-
-    for (const node of nodes) {
-      let cursor = "0";
-      do {
-        // Scan each master node individually
-        const result = await node.scan(cursor, "MATCH", pattern, "COUNT", 100);
-        cursor = result[0];
-        keys.push(...result[1]);
-      } while (cursor !== "0");
-    }
+      cursor = String(result[0]);
+      keys.push(...result[1]);
+    } while (cursor !== "0");
 
     if (keys.length > 0) {
-      // Delete in batches using pipeline (cluster mode compatible)
+      // Delete in batches of 100
       const batchSize = 100;
       for (let i = 0; i < keys.length; i += batchSize) {
         const batch = keys.slice(i, i + batchSize);
-        const pipeline = cache.pipeline();
-        for (const key of batch) {
-          pipeline.del(key);
-        }
-        await pipeline.exec();
+        await Promise.all(batch.map((key) => cache.del(key)));
       }
 
       logger.info(`Deleted cache keys matching pattern`, {
         pattern,
         keyCount: keys.length,
-        nodeCount: nodes.length,
       });
     }
   } catch (error) {
@@ -295,7 +260,7 @@ export async function invalidateNoteCounts(userId: string, folderId: string | nu
       }
     }
 
-    // Delete all cache keys using pipeline for cluster compatibility
+    // Delete all cache keys
     if (cacheKeys.length > 0) {
       await deleteCache(...cacheKeys);
       logger.debug("Invalidated note counts cache", {

diff --git a/src/lib/openapi-schemas.ts b/src/lib/openapi-schemas.ts
@@ -306,8 +306,8 @@ export const noteSchema = z
     title: z.string().openapi({ example: "[ENCRYPTED]", description: "Encrypted note title" }),
     content: z.string().openapi({ example: "[ENCRYPTED]", description: "Encrypted note content" }),
     type: z
-      .enum(["note", "diagram"])
-      .openapi({ example: "note", description: "Note type: 'note' or 'diagram'" }),
+      .enum(["note", "diagram", "code"])
+      .openapi({ example: "note", description: "Note type: 'note', 'diagram', or 'code'" }),
     encryptedTitle: z
       .string()
       .nullable()
@@ -375,9 +375,9 @@ export const createNoteRequestSchema = z
       .max(20)
       .optional()
       .openapi({ example: ["work"], description: "Up to 20 tags, max 50 chars each" }),
-    type: z.enum(["note", "diagram"]).default("note").optional().openapi({
+    type: z.enum(["note", "diagram", "code"]).default("note").optional().openapi({
       example: "note",
-      description: "Note type: 'note' or 'diagram' (defaults to 'note' if not specified)",
+      description: "Note type: 'note', 'diagram', or 'code' (defaults to 'note' if not specified)",
     }),
     encryptedTitle: z
       .string()
@@ -419,9 +419,9 @@ export const updateNoteRequestSchema = z
       .optional()
       .openapi({ example: ["work"], description: "Up to 20 tags" }),
     type: z
-      .enum(["note", "diagram"])
+      .enum(["note", "diagram", "code"])
       .optional()
-      .openapi({ example: "note", description: "Note type: 'note' or 'diagram'" }),
+      .openapi({ example: "note", description: "Note type: 'note', 'diagram', or 'code'" }),
     encryptedTitle: z
       .string()
       .optional()
@@ -482,7 +482,7 @@ export const notesQueryParamsSchema = z
         description: "Filter by hidden status",
       }),
     type: z
-      .enum(["note", "diagram"])
+      .enum(["note", "diagram", "code"])
       .optional()
       .openapi({
         param: { name: "type", in: "query" },

diff --git a/src/lib/validation.ts b/src/lib/validation.ts
@@ -45,7 +45,7 @@ export const createNoteSchema = z.object({
   ),
   starred: z.boolean().optional(),
   tags: z.array(z.string().max(50)).max(20).optional(),
-  type: z.enum(["note", "diagram"]).default("note").optional(),
+  type: z.enum(["note", "diagram", "code"]).default("note").optional(),
 
   encryptedTitle: z.string().optional(),
   encryptedContent: z.string().optional(),
@@ -71,7 +71,7 @@ export const updateNoteSchema = z.object({
   deleted: z.boolean().optional(),
   hidden: z.boolean().optional(),
   tags: z.array(z.string().max(50)).max(20).optional(),
-  type: z.enum(["note", "diagram"]).optional(),
+  type: z.enum(["note", "diagram", "code"]).optional(),
 
   encryptedTitle: z.string().optional(),
   encryptedContent: z.string().optional(),
@@ -91,7 +91,7 @@ export const notesQuerySchema = z
     archived: z.coerce.boolean().optional(),
     deleted: z.coerce.boolean().optional(),
     hidden: z.coerce.boolean().optional(),
-    type: z.enum(["note", "diagram"]).optional(),
+    type: z.enum(["note", "diagram", "code"]).optional(),
     search: z
       .string()
       .max(100)