InPart 1, error handling was created. Let's make it easier to throw errors.
Instead of

leterror=newError('This is a major issue!!')error.statusCode=500throwerror

We will make it something like this

thrownewServerError({message:'This is a major issue!!'})

1. Create a new folderexceptions

2. CreateServerError.js in the exceptions folder
   

   classServerErrorextendsError{constructor(resource){super()this.name=this.constructor.name// good practicethis.statusCode=500this.message=resource?resource.message:'Server Error'}}module.exports={ServerError}

3. Editindex.js, on how to use it
   

   // index.js...const{ServerError}=require('./exceptions/ServerError')...app.get('/error',async(req,res,next)=>{try{thrownewServerError()// or// throw new ServerError({ message: 'A huge mistake happened!' })}catch(error){returnnext(error)}})...

4. Now go tolocalhost:3000/error to see the 500 server error