Building and Consuming a RESTful API in Laravel PHP

StudentController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Student;

class ApiController extends Controller
{
    public function getAllStudents() {
      $students = Student::get()->toJson(JSON_PRETTY_PRINT);
      return response($students, 200);
    }

    public function createStudent(Request $request) {
      $student = new Student;
      $student->name = $request->name;
      $student->course = $request->course;
      $student->save();

      return response()->json([
        "message" => "student record created"
      ], 201);
    }

    public function getStudent($id) {
      if (Student::where('id', $id)->exists()) {
        $student = Student::where('id', $id)->get()->toJson(JSON_PRETTY_PRINT);
        return response($student, 200);
      } else {
        return response()->json([
          "message" => "Student not found"
        ], 404);
      }
    }

    public function updateStudent(Request $request, $id) {
      if (Student::where('id', $id)->exists()) {
        $student = Student::find($id);

        $student->name = is_null($request->name) ? $student->name : $request->name;
        $student->course = is_null($request->course) ? $student->course : $request->course;
        $student->save();

        return response()->json([
          "message" => "records updated successfully"
        ], 200);
      } else {
        return response()->json([
          "message" => "Student not found"
        ], 404);
      }
    }

    public function deleteStudent ($id) {
      if(Student::where('id', $id)->exists()) {
        $student = Student::find($id);
        $student->delete();

        return response()->json([
          "message" => "records deleted"
        ], 202);
      } else {
        return response()->json([
          "message" => "Student not found"
        ], 404);
      }
    }
}

Restful API in laravel