multicolumn "pivot" table query for Laravel model

after 2 days of looking on laravel docs and stackoverflow with no success I have to ask the question

I have 4 models so far and I am trying to get all related info in one go.

user model has relationship:

public function transactions() {
    return $this->hasMany( 'App\Transaction' );
}

store model has relationship: :

public function transactions() {
    return $this->hasMany( 'App\Transaction' );
}

product model has relationship: :

public function transactions() {
    return $this->hasMany( 'App\Transaction' );
}

and finally transaction model has relationships:

public function user() {
    return $this->belongsToMany( 'App\User' );
}
public function product() {
    return $this->belongsToMany( 'App\Product' );
}
public function store() {
    return $this->belongsToMany( 'App\Store' );
}

transaction table (looks like a pivot table):

transactions:
    id - integer
    user_id : integer
    product_id : integer
    store_id : integer
    ....... some additional columns containing transaction specific data.

I would like to get all transactions with referenced details for auth user

aka "$user->transactions" however with this i am getting only ids no data from related tables. I did try by joining but it looks messy and I think there is better way of getting this data well structured in laravel

the join looks like:

   $transactions = DB::table( 'transactions as t' )->where( 'user_id', Auth::id() )
    ->join( 'products', 'products.id', '=', 't.product_id' )
    ->join( 'stores', 'stores.id', '=', 't.store_id' )
    ->get( array( 't.id', 't.product_id', 'products.name as product_name', 't.store_id', 'stores.name as store_name' ) );

my objective is to get user object with all information about user including transactions and other details as one JSON response using as little queries as possible.

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