Support React Native

in RN environment, there’s no global WebAssembly. Can we have a polyfill for it? https://www.npmjs.com/package/webassembly looks promising.

[jacogr]

Closing this based on https://github.com/polkadot-js/wasm/issues/19#issuecomment-513449451

• @polkadot/wasm-crypto 0.13.1 has an asm.js fallback (RN-only)
• @polkadot/util-crypto 0.94.1 uses the above package
• There (seems to be) a working sr25519 sample of @polkadot/keyring 0.94.1 (uses the above internally) at https://github.com/jacogr/rn-wasm-crypto

If anything else does pop up -

• make a PR with fixes to the relevant repos
• log an issue for somebody to take a look at

[jacogr]

• Updated XCode
• Installed cocoapods
• using 0.13.0-beta.4
• running NODE_OPTIONS=--max_old_space_size=8192 npm start for the bundler
• npm run ios for the emulator
• made the following code changes to https://github.com/qalqi/AwesomeProject -

import { bip39Generate, waitReady } from '@polkadot/wasm-crypto';

const App = () => {
  const [phrase, setPhrase] = useState();

  useEffect(() => {
   // crypto needs to be ready
    waitReady()
      .then(() => {
       // follow index.d.ts - pass in the number of words
        setPhrase(bip39Generate(12));
      })
      .catch((error) => setPhrase(`error: ${error.message}`));;
  }, []);

  return (
    <Fragment>
      <StatusBar barStyle="dark-content" />
      <SafeAreaView>
        <ScrollView
          contentInsetAdjustmentBehavior="automatic"
          style={styles.scrollView}>
          <Header />

          <View style={styles.body}>
            <View style={styles.sectionContainer}>
              <Text style={styles.sectionTitle}>phrase</Text>
              <Text style={styles.sectionDescription}>
                {phrase || '--none--'}
              </Text>
...