Hook in to "next dev" command | Next.js | Page 1

solar karma Aug 10, 2024, 1:43 PM

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I would like to make a third party library that users can install along with Next. It will need to watch for file changes in the users code and perform actions in response.

Obviously I can instruct the user to update their dev command to something like next dev && npx my-library but would greatly prefer a solution that starts up automatically (and without configuration) along with next dev

Note: In prod this will not be necessary, as the user's code will be known ahead of time, so it can just be done once before / during build

hardy spearBOT Aug 10, 2024, 1:43 PM

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wise nymph Aug 10, 2024, 2:01 PM

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solar karma I would like to make a third party library that users can install along with Nex...

you can write a webpack plugin wrapping your logic, and hook that webpack plugin into the user's next.config.js.

example here https://github.com/joulev/nextjs-route-types/blob/main/packages/nextjs-route-types/src/index.ts#L55

solar karma Aug 10, 2024, 2:04 PM

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oh wow, this is perfect, thank you! so if i'm understanding this correctly, there probably is not a way to do this silently, with zero user configuration?

eg: user installs dependency, dependency configures itself to start with next

would probably be a security issue anyway i guess

wise nymph Aug 10, 2024, 2:04 PM

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yeah need user intervention

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you notice many things require users to withSomething(config), this is why

solar karma Aug 10, 2024, 2:05 PM

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yep, for sure, makes sense. i'm sure it could also potentially cause really insidious bugs, some dep is causing performance issues or something, but user has no idea why

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(if they allowed the dep to configure itself, i mean)

wise nymph Aug 10, 2024, 2:07 PM

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yeah

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technically you can use postinstall scripts to auto-configure for users

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i wouldn't recommend that though, unnecessarily complex

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not to mention some package managers block postinstall by default

#Hook in to "next dev" command