pagination in laravel in frontend using relationship - php

Question

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I want to use pagination in category view. I only want to display 5 posts of that specific category which is selected using a slug.
I want pagination link in below.
This is my view:
#extends('layouts.frontend')
#section('content')
<!-- Stunning Header -->
<div class="stunning-header stunning-header-bg-lightviolet">
<div class="stunning-header-content">
<h1 class="stunning-header-title">Category:{{$category->name}}</h1>
</div>
</div>
<!-- End Stunning Header -->
<div class="container">
<div class="row medium-padding120">
<main class="main">
<div class="row">
#php
$i = 0;
#endphp
#foreach($category->posts as $post)
<div class="case-item-wrap">
<div class="col-lg-4 col-md-4 col-sm-6 col-xs-12">
<div class="case-item" style="margin-top: 20px;">
<div class="case-item__thumb">
<img src="{{$post->featured}}" alt="our case">
</div>
<h6 class="case-item__title">{{$post->title}}</h6>
</div>
</div>
</div>
#php $i++; #endphp
#if($i % 3 == 0)
<div class="row"></div>
#endif
#endforeach
</div>
</div>
</main>
</div>
</div>
#endsection
And this is my frontendcontroller. Where I want to select Post with specific category Then display 5 number post in my view. Having problem in how to use pagination with realtionship.
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Setting;
use App\Category;
use App\Post;
use App\User;
use App\Tag;
class FrontEndController extends Controller
{
public function index()
{
$title = Setting::first()->site_name;
$categories = Category::all();
$first_post = Post::latest()->first();
$second_post = Post::latest()->skip(1)->take(1)->get()->first();
$third_post = Post::latest()->skip(2)->take(1)->get()->first();
$english_11 = Category::find(1);
$blog = Category::find(3);
$settings = Setting::first();
$tags = Tag::all();
return view('index',compact('title','categories','first_post','second_post','third_post','english_11','blog','settings','tags'));
}
public function singlePost($slug)
{
$categories = Category::all();
$settings = Setting::first();
$post = Post::where('slug',$slug)->first();
$next_id = Post::where('id','>',$post->id)->min('id');
$prev_id = Post::where('id','<',$post->id)->max('id');
$next = Post::find($next_id);
$prev = Post::find($prev_id);
$tags = Tag::all();
$title = $post->title;
return view('single',compact('post','title','categories','settings','next','prev','tags'));
}
public function categories($slug)
{
$category = Category::where('slug',$slug)->first();
$categories = Category::all();
$title = $category->name;
$settings = Setting::first();
return view('category',compact('category','categories','title','settings'));
}
public function tags($slug)
{
$tag = Tag::where('slug',$slug)->first();
$categories = Category::all();
$title = $tag->tag;
$settings = Setting::first();
return view('tag',compact('tag','categories','title','settings'));
}
}