nest decorators

@Body
We use @Body(‘title’) to access title field inside request post body. 
This means it will take the Post what you passed and post on every field
where there's 'title'. If the @Body() decorator has nothing inside the 
parenthasis, then it means you're creating a new object that will have a 
different value for every key in the object. Next to the decorator you 
must pass the new object of type Dto/model you want to post/add to the 
database.
Example...if @Body() & new object you're adding then : 
 { 
	id: 3,
    name: somethingNew,
    color: brown
 }
 You're adding a whole new object and not targeting any field in the
 existing objects.
 
 @Param
 @Param(‘id’) will automatically capture this param for us. it's a way to
 tell the array of objects in the database that we're looking for 
 something where the id we passed is found.
 
 @Query()
 it's like a forEach(variable=>{}).....You have to give it a variable 
 that will loop/query around all the objects in the array then you can 
 give it what property you are looking for by using that variable
 
 Example:
 
 { 
	id: 3,
    name: somethingNew,
    color: brown
 }
 
 @Query() query //variable
 query.id or query.name or query.color