ergo-lib-wasm

WebAssembly library with JS/TS bindings for sigma-rust.

Packages(npm):

• ergo-lib-wasm-browser
• ergo-lib-wasm-nodejs

Alpha version

On CI build (job JS tests) an alpha build of npm packages is published. The version of the alpha build is comprised of the next minor version with git commit hash suffix (i.e if the current version is 0.12.0 then alpha build will be 0.13.0-alpha-[COMMIT]) and published with alpha tag. See JS tests CI job output for details.

Test

• Scripts in ergo-lib-wasm/tests will run in both node js tests and browser js tests.
• Scripts in ergo-lib-wasm/tests_browser will only run in browser js tests.

Troubleshooting

When I build the ergo-lib-wasm and include the pkg folder as dependency in my app I get "TypeError: TextDecoder is not a constructor".

Make sure webpack plugins TextDecoder and TextEncoder are enabled. Check the following lines in webpack config:

new webpack.ProvidePlugin({
      TextDecoder: ['text-encoder', 'TextDecoder'],
      TextEncoder: ['text-encoder', 'TextEncoder']
    })

https://github.com/ergoplatform/sigma-rust/blob/develop/bindings/ergo-lib-wasm/webpack.config.js#L16

Using with create-react-app

CRA does not support WASM. But you can workaround it. You need to override webpack config. Check out - https://stackoverflow.com/questions/59319775/how-to-use-webassembly-wasm-with-create-react-app/59720645#59720645