Question 1

How to configure custom Webpack loaders in Haul?

Accepted Answer

Edit the haul.config.js file in your project to add Webpack loaders by extending the default configuration. Haul's presets for RN versions provide a base, and you can integrate loaders for assets or transpilation as needed.

Question 2

Haul vs Metro: which should I use for React Native?

Accepted Answer

Haul is better if you need Webpack plugins, symlink support, or advanced bundling control, but Metro offers better feature parity with React Native, including HMR and full Delta Bundles. For most new projects, Metro or Re.pack might be more future-proof.

Question 3

Does Haul support React Native 0.58 or older?

Accepted Answer

Haul's main packages only support React Native 0.59 and above. For older versions, you must use the legacy branch, which has limited features and may not receive updates.

Question 4

How to migrate from Haul to Re.pack?

Accepted Answer

Migration is straightforward since both use Webpack. Update your configuration to Re.pack's webpack.config.js, and refer to Haul's migration guide for specific steps, as maintainers provide instructions for a smooth transition.

Question 5

Can Haul handle symlinks in node_modules for monorepos?

Accepted Answer

Yes, Haul handles symlinks effectively without watchman, making it suitable for monorepo setups where packages are linked, unlike Metro which often requires additional configuration.

Question 6

What are the performance trade-offs with Haul?

Accepted Answer

Haul can optimize bundle sizes through its Babel preset and Webpack plugins, but build times may be slower than Metro due to Webpack's complexity, especially in large projects.

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