节点找不到在 tsconfig 和 package.json 中定义的模块别名

Question

I'm trying to run a typescript project in production mode. The code is here on Github

• Running npm run start:dev is running the server up on http://localhost:3000/
• Running npm run build is generating the dist folder

The package.json has the definition of @server defined using module alias :

"_moduleAliases": {
  "@server": "dist/Server"
}

The @server is defined under compilerOptions.paths.@server in tsconfig.json too!

The index.ts imports app from @server ;

import app from '@server';

When I run npm start - it does nothing

So I tried node dist/index.js --env=production and it throws the following error:

Error: Cannot find module '@server'

Why is the node not detecting this module alias ?

Answer 1

As stated on the module-alias README , it changes the default behavior of require . So, to use it, you have to add require('module-alias/register') to the beginning of your code before you import anything. I would suggest adding it to LoadEnv.ts .