fastify-multipart-webpack-test

How to reproduce the issue

yarn install
yarn build
yarn test

Error message

yarn test 
yarn run v1.22.11
$ node dist/main.js
webpack:///./node_modules/fastify-multipart/index.js?:196
  const toID = hexoid()
               ^

TypeError: hexoid is not a function
    at fastifyMultipart (webpack:///./node_modules/fastify-multipart/index.js?:196:16)
    at Plugin.exec (webpack:///./node_modules/avvio/plugin.js?:132:19)
    at Boot.loadPlugin (webpack:///./node_modules/avvio/plugin.js?:267:10)
    at Task.release (webpack:///./node_modules/fastq/queue.js?:149:16)
    at worked (webpack:///./node_modules/fastq/queue.js?:201:10)
    at eval (webpack:///./node_modules/avvio/plugin.js?:270:7)
    at done (webpack:///./node_modules/avvio/plugin.js?:202:5)
    at check (webpack:///./node_modules/avvio/plugin.js?:226:9)
    at node:internal/process/task_queues:141:7
    at AsyncResource.runInAsyncScope (node:async_hooks:199:9)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Reason

webpack by default prioritizes "module" over "main".

But one of the libraries named "hexoid" doesn't work after compilation.

Solution

Add the following to webpack config:

resolve: {
  mainFields: ['main', 'module'],
}

So that it tried to resolve "main" in package.json got prioritized over "module".