Created API endpoints

app/Http/Controllers/AnswerController.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Models\Answer;
+use App\Transformers\AnswerTransformer;
+use App\Http\Resources\AnswerResource;
+use Dingo\Api\Routing\Helpers;
+
+class AnswerController extends Controller
+{
+    use Helpers;
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        $answers = Answer::all();
+
+        return AnswerResource::collection($answers);
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show($id)
+    {
+        $answer = Answer::findOrFail($id);
+
+        return $this->response
+            ->item($answer, new AnswerTransformer, ['key' => 'answers']);
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy($id)
+    {
+        //
+    }
+}

app/Http/Controllers/CategoryController.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Models\Category;
+use App\Http\Resources\CategoryResource;
+use App\Transformers\CategoryTransformer;
+use Dingo\Api\Routing\Helpers;
+
+class CategoryController extends Controller
+{
+    use Helpers;
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        $categories = Category::all();
+
+        return CategoryResource::collection($categories);
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show($id)
+    {
+        $category = Category::findOrFail($id);
+
+        return $this->response
+            ->item($category, new CategoryTransformer, ['key' => 'categories']);
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy($id)
+    {
+        //
+    }
+}

app/Http/Controllers/QuestionAnswerController.php

@@ -0,0 +1,108 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Http\Resources\AnswerResource;
+use App\Transformers\AnswerTransformer;
+use App\Models\Answer;
+use App\Models\Question;
+use Dingo\Api\Routing\Helpers;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+
+class QuestionAnswerController extends Controller
+{
+    use Helpers;
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index($questionId)
+    {
+        $question = Question::findOrFail($questionId);
+        // return $this->response
+        //     ->item($question, new QuestionTransformer, ['key' => 'questions']);
+
+        $answer = $question->answers()->get();
+
+        return AnswerResource::collection($answer);
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        // return $request;
+        $question = Question::find($request->question_id);
+        if ($question == null) {
+            throw new NotFoundHttpException("Question not found.");
+
+        }
+        $answer = $question->answers()->create($request->all());
+
+        // return $this->response
+        //     ->item($answer, new AnswerTransformer, ['key' => 'answers']);
+        return new AnswerResource($answer);
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show($id)
+    {
+        //
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy($id)
+    {
+        //
+    }
+}

app/Http/Controllers/QuestionController.php

@@ -0,0 +1,92 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Dingo\Api\Routing\Helpers;
+use App\Models\Question;
+use App\Transformers\QuestionTransformer;
+
+class QuestionController extends Controller
+{
+    use Helpers;
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        //
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show($id)
+    {
+        $question = Question::findOrFail($id);
+
+        return $this->response
+            ->item($question, new QuestionTransformer, ['key' => 'questions']);
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy($id)
+    {
+        //
+    }
+}

app/Http/Controllers/QuestionnaireController.php

@@ -0,0 +1,97 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Models\Questionnaire;
+use Dingo\Api\Routing\Helpers;
+use App\Transformers\QuestionnaireTransformer;
+use App\Http\Resources\QuestionnaireResource;
+
+class QuestionnaireController extends Controller
+{
+    use Helpers;
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        $questionnaires = Questionnaire::all();
+
+        // return $this->response
+        //     ->collection($questionnaires, new QuestionnaireResource, ['key' => 'questionnaires']);
+        return QuestionnaireResource::collection($questionnaires);
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  \App\Models\Questionnaire $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show($id)
+    {
+        $questionnaire = Questionnaire::findOrFail($id);
+
+        return $this->response
+            ->item($questionnaire, new QuestionnaireTransformer, ['key' => 'questionnaires']);
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  \App\Models\Questionnaire  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit(Questionnaire $id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \App\Models\Questionnaire  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, Questionnaire $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  \App\Models\Questionnaire  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy(Questionnaire $id)
+    {
+        //
+    }
+}

app/Http/Controllers/QuestionnaireSectionController.php

@@ -0,0 +1,96 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Models\Questionnaire;
+use Dingo\Api\Routing\Helpers;
+use App\Transformers\SectionTransformer;
+use App\Http\Resources\SectionResource;
+
+class QuestionnaireSectionController extends Controller
+{
+    use Helpers;
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index($questionnaire)
+    {
+        $sections = Questionnaire::find($questionnaire)
+            ->sections()->get();
+
+        // return $this->response
+        //     ->paginator($sections, new SectionTransformer, ['key' => 'sections']);
+        return SectionResource::collection($sections);
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  \App\Model\Questionnaire  $questionnaire
+     * @return \Illuminate\Http\Response
+     */
+    public function show(Questionnaire $questionnaire, Section $section)
+    {
+        //
+        echo "You've requested section with questionnaire id:" . $id;
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy($id)
+    {
+        //
+    }
+}

app/Http/Controllers/RespondentController.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Models\Respondent;
+use App\Http\Resources\RespondentResource;
+use App\Transformers\RespondentTransformer;
+use Dingo\Api\Routing\Helpers;
+
+class RespondentController extends Controller
+{
+    use Helpers;
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        $respondents = Respondent::all();
+
+        return RespondentResource::collection($respondents);
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show($id)
+    {
+        $respondent = Respondent::findOrFail($id);
+
+        return $this->response
+            ->item($respondent, new RespondentTransformer, ['key' => 'respondents']);
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy($id)
+    {
+        //
+    }
+}

app/Http/Controllers/SectionController.php

@@ -0,0 +1,92 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Models\Section;
+use App\Transformers\SectionTransformer;
+use Dingo\Api\Routing\Helpers;
+
+class SectionController extends Controller
+{
+    use Helpers;
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        //
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show($id)
+    {
+        $section = Section::findOrFail($id);
+
+        return $this->response
+            ->item($section, new SectionTransformer, ['key' => 'sections']);
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy($id)
+    {
+        //
+    }
+}

app/Http/Controllers/SectionQuestionController.php

@@ -0,0 +1,96 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Dingo\Api\Routing\Helpers;
+use App\Models\Section;
+use App\Models\Question;
+use App\Transformers\QuestionTransformer;
+
+class SectionQuestionController extends Controller
+{
+    use Helpers;
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index($section)
+    {
+        $question = Section::find($section)
+            ->questions()->paginate(1);
+
+        return $this->response
+            ->paginator($question, new QuestionTransformer, ['key' => 'questions']);
+
+        // return QuestionTransformer::collection($questions);
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show($id)
+    {
+        //
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy($id)
+    {
+        //
+    }
+}

app/Http/Controllers/UserController.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Dingo\Api\Routing\Helpers;
+use App\Models\User;
+use App\Transformers\UserTransformer;
+use App\Http\Resources\UserResource;
+
+class UserController extends Controller
+{
+    use Helpers;
+
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        $users = User::all();
+
+        return UserResource::collection($users);
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function show($id)
+    {
+        $user = User::findOrFail($id);
+
+        return $this->response
+            ->item($user, new UserTransformer, ['key' => 'users']);
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function edit($id)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, $id)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  int  $id
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy($id)
+    {
+        //
+    }
+}

app/Http/Kernel.php

@@ -19,6 +19,7 @@ class Kernel extends HttpKernel
         \App\Http\Middleware\TrimStrings::class,
         \Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,
         \App\Http\Middleware\TrustProxies::class,
+        \App\Http\Middleware\ModifyHeadersMiddleware::class,
     ];
 
     /**

app/Http/Middleware/ModifyHeadersMiddleware.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+
+class ModifyHeadersMiddleware
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \Closure  $next
+     * @return mixed
+     */
+    public function handle($request, Closure $next)
+    {
+        $response = $next($request);
+        $response->header('Access-Control-Allow-Origin', '*');
+        $response->header('Access-Control-Allow-Headers', 'Origin, Content-Type');
+        return $response;
+    }
+}

app/Http/Resources/AnswerResource.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\Resource;
+
+class AnswerResource extends Resource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  \Illuminate\Http\Request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        return [
+            'id' => $this->id,
+            'choice' => $this->questionchoice,
+            'text' => $this->text,
+            'links' => [
+                'self' => route('answers.show', ['answers' => $this->id]),
+                'relatedTo' => [
+                    'question' => route('questions.show', ['questions' => $this->question_id]),
+                    'respondent' => route('respondents.show', ['respondents' => $this->respondent_id])
+                ]
+            ]
+        ];
+    }
+}

app/Http/Resources/CategoryResource.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\Resource;
+
+class CategoryResource extends Resource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  \Illuminate\Http\Request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        // return parent::toArray($request);
+        return [
+            'id' => $this->id,
+            'name' => $this->name,
+            'code' => $this->code,
+            'links' => [
+                'self' => route('categories.show', ['categories' => $this->id])
+            ]
+        ];
+    }
+}

app/Http/Resources/QuestionResource.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\Resource;
+
+class QuestionResource extends Resource
+{
+    /**
+     * Transform the resource collection into an array.
+     *
+     * @param  \Illuminate\Http\Request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        // return parent::toArray($request);
+        return [
+            'id' => $this->id,
+            'text' => $this->text,
+            'number' => $this->number,
+            'description' => $this->description,
+            'section' => new SectionResource($this->section),
+            'links' => [
+                'self' => route('questions.show', ['questions' => $this->id])
+            ]
+        ];
+    }
+}

app/Http/Resources/QuestionchoiceResource.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\Resource;
+
+class QuestionchoiceResource extends Resource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  \Illuminate\Http\Request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        return [
+            'id' => $this->id,
+            'number' => $this->number,
+            'text' => $this->text,
+            'fillable' => $this->fillable,
+            'description' => $this->description,
+            'links' => [
+                'relatedTo' => route('questions.show', ['questions' => $this->question_id])
+            ]
+        ];
+    }
+}

app/Http/Resources/QuestionnaireResource.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\Resource;
+
+class QuestionnaireResource extends Resource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  \Illuminate\Http\Request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        // return parent::toArray($request);
+        return [
+            'id' => $this->id,
+            'category' => new CategoryResource($this->category),
+            'title' => $this->title,
+            'description' => $this->description,
+            'links' => [
+                'self' => route('questionnaires.show', ['questionnaires' => $this->id])
+            ]
+        ];
+    }
+}

app/Http/Resources/RespondentResource.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\Resource;
+
+class RespondentResource extends Resource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  \Illuminate\Http\Request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        return [
+            'id' => $this->id,
+            'name' => $this->name,
+            'occupation' => $this->occupation,
+            'gender' => $this->gender,
+            'links' => [
+                'self' => route('respondents.show', ['respondents' => $this->id])
+            ]
+        ];
+    }
+}

app/Http/Resources/SectionResource.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\Resource;
+
+class SectionResource extends Resource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  \Illuminate\Http\Request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        // return parent::toArray($request);
+        return [
+            'id' => $this->id,
+            'title' => $this->title,
+            'description' => $this->description,
+            'links' => [
+                'self' => route('sections.show', ['sections' => $this->id])
+            ]
+        ];
+    }
+}

app/Http/Resources/UserResource.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Resources\Json\Resource;
+
+class UserResource extends Resource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @param  \Illuminate\Http\Request
+     * @return array
+     */
+    public function toArray($request)
+    {
+        // return parent::toArray($request);
+        return [
+            'id' => $this->id,
+            'username' => $this->username,
+            'name' => $this->name,
+            'email' => $this->email
+        ];
+    }
+}