Hello !

Nice project, I would like to use wasm-sqlite to mimic D1 on Deno Deploy or any other V8 "serverless" workers. I tried to edit your project for a basic test using Deno and localStorage but got the following error:

error: Uncaught (in promise) Error: failed to get next row: database disk image is malformed
      throw new Error(err);
            ^
    at SqliteConnection.throwLastError (file:///Users/sqlite-deploy/vfs.ts:217:13)
    at async SqliteConnection.queryRaw (file:///Users/sqlite-deploy/vfs.ts:267:7)
    at async file:///Users/sqlite-deploy/index.ts:32:20

The code:

import { Sqlite } from "./vfs.ts";

const sqlite = await Sqlite.instantiate({
  pageCount(): number {
    return self.pageCount;
  },
  async getPage(ix: number): Promise<Uint8Array> {
    const page =
      new Uint8Array(JSON.parse(await localStorage.getItem(ix))) ??
      new Uint8Array(4096);
    return page;
  },
  async putPage(ix: number, page: Uint8Array): Promise<void> {
    await localStorage.setItem(ix, JSON.stringify(Array.from(page)));
    self.pageCount = Math.max(self.pageCount, ix + 1);
  },
  async delPage(ix: number): Promise<void> {
    await localStorage.removeItem(ix);
    if (ix + 1 >= self.pageCount) {
      self.pageCount = ix;
    }
  },
});

localStorage.clear();
const conn = await sqlite.connect();
const create: T = await conn.queryRaw(`CREATE TABLE td(a INT) STRICT;`);
const insert: T = await conn.queryRaw(`INSERT INTO td VALUES('000123');`);
console.log(create, insert);

And the vfs.ts diff:

1c1,2
< import * as Asyncify from "https://unpkg.com/asyncify-wasm?module";
---
> import * as Asyncify from "asyncify-wasm";
> import module from "./wasm_sqlite.wasm";
23,24c24
<     const { instance } = await Asyncify.instantiateStreaming(
<         fetch(new URL("./wasm_sqlite.wasm", import.meta.url)), {
---
>     const instance = await Asyncify.instantiate(module, {

Do you have any clue why the database got corrupted ?

Best,