archive/rsnext
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
rsnext/examples/with-webassembly/README.md
Max Proske bfd96ac012
Fix with-webassembly example and convert to Typescript (#43677) 
- Fixes `with-webassembly` example unable to build with the current
`next.config.js`.
https://github.com/vercel/next.js/issues/29362#issuecomment-932767530
- Converted example to TypeScript

```js
// Before
config.output.webassemblyModuleFilename = 'static/wasm/[modulehash].wasm'

// After
config.output.webassemblyModuleFilename =
  isServer && !dev
    ? '../static/wasm/[modulehash].wasm'
    : 'static/wasm/[modulehash].wasm'
```

```
> Build error occurred
Error: Export encountered errors on following paths:
        /
    at /Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/export/index.js:408:19
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async Span.traceAsyncFn (/Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/trace/trace.js:79:20)
    at async /Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/build/index.js:1342:21
    at async Span.traceAsyncFn (/Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/trace/trace.js:79:20)
    at async /Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/build/index.js:1202:17
    at async Span.traceAsyncFn (/Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/trace/trace.js:79:20)
    at async Object.build [as default] (/Users/max/dev/next.js/examples/with-webassembly/node_modules/next/dist/build/index.js:65:29)
 ELIFECYCLE  Command failed with exit code 1.
```

## Documentation / Examples

- [X] Make sure the linting passes by running `pnpm build && pnpm lint`
- [X] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
2022-12-11 20:10:14 -06:00

1.3 KiB
Raw Blame History

WebAssembly example

This example shows how to import WebAssembly files (.wasm) and use them inside of a React component that is server rendered. So the WebAssembly code is executed on the server too. In the case of this example we're showing Rust compiled to WebAssembly.

Preview

Preview the example live on StackBlitz:

Open in StackBlitz

How to use

Execute create-next-app with npm, Yarn, or pnpm to bootstrap the example:

npx create-next-app --example with-webassembly with-webassembly-app

yarn create next-app --example with-webassembly with-webassembly-app

pnpm create next-app --example with-webassembly with-webassembly-app

This example uses Rust compiled to wasm, the wasm file is included in the example, but to compile your own Rust code you'll have to install Rust.

To compile src/add.rs to add.wasm run:

npm run build-rust
# or
yarn build-rust
# or
pnpm build-rust