https://github.com/rkusa/wasm-sqlite

[Experimental] SQLite compiled to WASM with pluggable page storage.
https://github.com/rkusa/wasm-sqlite

sqlite vfs wasm

Last synced: about 2 months ago
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[Experimental] SQLite compiled to WASM with pluggable page storage.

• Host: GitHub
• URL: https://github.com/rkusa/wasm-sqlite
• Owner: rkusa
• Created: 2022-01-25T14:06:08.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2023-02-06T16:33:05.000Z (almost 2 years ago)
• Last Synced: 2024-11-08T03:03:26.412Z (about 2 months ago)
• Topics: sqlite, vfs, wasm
• Language: Rust
• Homepage:
• Size: 41 KB
• Stars: 49
• Watchers: 3
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# `wasm-sqlite`

SQLite compiled to WASM with pluggable data storage. Useful to save SQLite in e.g. Cloudflare Durable Objects (example: https://github.com/rkusa/do-sqlite).

**Status:** This is very experimental. Don't use it for real applications yet! See the [conclusion of my blog post](https://ma.rkusa.st/store-sqlite-in-cloudflare-durable-objects#conclusion) for reasons for why not to use it.

```bash

npm install -S @rkusa/wasm-sqlite

```

## Example

```ts

const sqlite = await Sqlite.instantiate({

  pageCount(): number {

    return self.pageCount;

  },

  async getPage(ix: number): Promise {

    return (await storage.get(ix)) ?? new Uint8Array(4096);

  },

  async putPage(ix: number, page: Uint8Array): Promise {

    await storage.put(ix, page);

  },

  async delPage(ix: number): Promise {

    await storage.delete(ix);

    if (ix + 1 >= self.pageCount) {

      self.pageCount = ix;

    }

  },

});

const conn = await this.sqlite.connect();

await conn.execute("...", []);

const query: T = await conn.query("...", []);

```

## Build

Execute the following once:

```bash

brew install cmake ninja binaryen

./build-wasi-sdk.sh

```

After that, build it via:

```bash

npm run build

```