encoding not found when requiring node-fetch

For some reason, when you try to package a function that requires node-fetch the encoding module isn’t found.

We need to determine if:

• This is a problem with node-fetch, or a consumption concern
• or if we are missing this dep for some reason, or if we are requiring that it exist, but it doesn’t really have to.
• Decide if we make an exception for this very common scenario, or improve output when this pitfall is hit.

Examples in the wild:

• https://github.com/netlify/netlify-lambda/issues/142
• https://community.netlify.com/t/failed-during-stage-preparing-site-for-deployment-exit-status-1/409/2

[ehmicky]

Just for reference, this problem is not specific to node-fetch. It applies to any require("moduleName") that is inside a conditional block or a try/catch (such as encoding) and is not declared in optionalDependencies.

This has been fixed in node-fetch@3 but this has not been released yet.

[cliffasaurus]

It looks like a function is requiring ./dist/react-hot-loader.production.min.js but it isn’t found when bundling the function. Ensuring that is available, or ensuring that your function doesn’t attempt to load that module during runtime is the solution. Are you perhaps shipping your site bundle as a function?

I got it now. The bundling seems to have traversed one level up and got the .babelrc where I declared a plugin of react-hot-loader. I fixed it by declaring a separate .babelrc inside the functions folder