Support for RN >= 0.59

[mppperez]

Regarding to #10 this library doesn't support RN >= 0.59.
The included changes made it work for me with RN 0.60.3 again. Please review and merge if possible.

BR

[paomosca]

@mppperez i'm trying to use your branch to test it but I get this output in console:
Cannot read property 'transformFile' of undefined
how did you manage to make it work?
just to know there is a small error in your README about metro.config.js must be:

module.exports = {
  transformer: {
    babelTransformerPath: require.resolve("./transformer")
  }
};

(":" is missing)

[paomosca]

as suggested by another pull request adding babel-traverse and babylon make the error disappear, but still no obfuscated files anywhere.
Also nothing written in console so apparently not passing from :

console.log("Obfuscating", props.filename)

just to help in debug i've this configuration:

metro.config.js

module.exports = {
  transformer: {
    getTransformOptions: async () => ({
      transform: {
        experimentalImportSupport: false,
        inlineRequires: false
      }
    }),
    babelTransformerPath: require.resolve("./transformer")
  }
};

transformer.js

const obfuscatingTransformer = require("react-native-obfuscating-transformer");

module.exports = obfuscatingTransformer({
  upstreamTransformer: require("metro-react-native-babel-transformer"),
  trace: true,
  emitObfuscatedFiles: true,
  enableInDevelopment: true
});

[ghost]

@paomosca I suspect it is because of wrong filter...

try:

const obfuscatingTransformer = require("react-native-obfuscating-transformer");

module.exports = obfuscatingTransformer({
  upstreamTransformer: require("metro-react-native-babel-transformer"),
  trace: true,
  emitObfuscatedFiles: true,
  enableInDevelopment: true
  filter: () => true,
});

[mppperez]

@paomosca sorry for the late response.

First of all thanks for the hint: just fixed the typo in README.

You're right: I've just merged the pull request of @maksim-tolo into this one to have this fix included.

With this changes everything works fine for me. I hope @dusan-dragon were able to help you with his hint.

[mppperez]

@ds300 any chance that we can get this merged into master and make a new release?

[technocake]

Following this. Hope this get merged in soon. We have a big need for this in a bigger project we are working on for a customer.

[walterholohan]

Bump. @ds300 can you merge this PR in please?

[sanex3339]

merged, but i can't release a new version with this fix

[ghost]

Hi guys, I found out that if you will use directly javascript-obfuscator library you can get way better results. But it takes more time to integrate into build process. Just wanted to mention that it is also an option.

[dooleyb1]

Can someone please release a new version to npm with this fix please. @zamotkin @sanex3339

[rooque]

Hi guys, I found out that if you will use directly javascript-obfuscator library you can get way better results. But it takes more time to integrate into build process. Just wanted to mention that it is also an option.

@dusan-dragon
Interesting, I was curious how this process would be... could you explain a little?

[ghost]

@rooque during the build process of app there is a step where all JS is bundled / compiled (from typescript for example) to 1 big file. You can just hook into build process and after bundling apply javascript-obfuscator to that file, after that continue with normal build process....

That being said, not sure if it is needed anymore because on the newest react-native version I think Hermes is supported for both android and IOS so basically there is no JS file, but instead you wil find "bytecode" - code compiled for Hermes.

[rooque]

@rooque during the build process of app there is a step where all JS is bundled / compiled (from typescript for example) to 1 big file. You can just hook into build process and after bundling apply javascript-obfuscator to that file, after that continue with normal build process....

That being said, not sure if it is needed anymore because on the newest react-native version I think Hermes is supported for both android and IOS so basically there is no JS file, but instead you wil find "bytecode" - code compiled for Hermes.

Got it, thanks!