Implement REST API Symfony 3

Implement REST API Symfony 3

By : user2185527
Date : November 22 2020, 04:01 AM
will be helpful for those in need JsonResponse will serialize your array, but it's already serialized by Serializer. You are now serializing your already serialized object.
Use setJson() instead:
code :
$response = new JsonResponse();
$response->setJson($serializer->serialize($tariff, 'json'));

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How to implement REST in my Web Application. I want to make a rest API for my website?

How to implement REST in my Web Application. I want to make a rest API for my website?

By : user3053933
Date : March 29 2020, 07:55 AM
inherit an interface, implement part of the methods, let a derived class implement the rest

inherit an interface, implement part of the methods, let a derived class implement the rest

By : ilyasriaz
Date : March 29 2020, 07:55 AM
With these it helps There are two options.
Make the implementation virtual and empty (or throw a NotImplementedException), so it does nothing by default until derived. Make the base class abstract and create abstract signatures for the interface methods you want to force down the chain.
code :
public interface IShape : ICalculateArea, IHaveLineSegments

public interface ICalculateArea
    float Area { get; }

public interface IHaveLineSegments
    int NumberOfLineSegments { get; }

class Rectangle : IHaveLineSegments
    public int NumberOfLineSegments { get; private set; }

class Square : Rectangle, IShape
    public float Area { get; private set; }
Symfony 4 implement REST API

Symfony 4 implement REST API

By : Vinh Xuan
Date : March 29 2020, 07:55 AM
wish helps you I've found a solution by myself returning a HttpFoundation\Response, it might be helpful to someone.
code :
 * Lists all Articles.
 * @FOSRest\Get("/articles")
public function getArticles(Request $request): Response
    $em = $this->getDoctrine()->getManager();
    $articles = $em->getRepository(Article::class)->findAll();

    return new Response($this->json($articles), Response::HTTP_OK);
Where to implement XSS prevention in symfony-based REST API and Vue.js front-end

Where to implement XSS prevention in symfony-based REST API and Vue.js front-end

By : Thorn1101
Date : March 29 2020, 07:55 AM
will help you If you're using v-html to render the comments, then there's always the possibility of XSS. Strict HTML sanitization can mitigate the risk, but you never know.
The only surefire way to prevent XSS is to never use v-html or innerHTML. This means you'll have to parse the HTML (using DOMParser) and render the comments manually.
code :
Vue.component('comment-content', {
  functional: true,
  props: {
    html: {},
    allowedElements: {
      default: () => ['p', 'i', 'b', 'ul', 'li'],
  render(h, ctx) {
    const { html, allowedElements } = ctx.props;
    const renderNode = node => {
      switch (node.nodeType) {
        case Node.TEXT_NODE: return renderTextNode(node);
        case Node.ELEMENT_NODE: return renderElementNode(node);
    const renderTextNode = node => {
      return node.nodeValue;
    const renderElementNode = node => {
      const tag = node.tagName.toLowerCase();
      if (allowedElements.includes(tag)) {
        const children = [...node.childNodes].map(node => renderNode(node));
        return h(tag, children);
    const parser = new DOMParser();
    const doc = parser.parseFromString(html, 'text/html');
    return [...doc.body.childNodes].map(node => renderNode(node));

new Vue({
  el: '#app',
  data: {
    html: `
        <li>One <script>alert('Hacked')<\/script></li>
        <li onmouseover="alert('Hacked')">Two</li>
        <li style="color: red">Three <b>bold</b> <i>italic</i></li>
        <li>Four <img src="javascript:alert('Hacked')"></li>
      <section>This element isn't allowed</section>
      <p>Last paragraph</p>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>

<div id="app">
  <comment-content :html="html"></comment-content>
Rest-bundle of Symfony 4 requires config in 4.3 version, while Symfony 4 uses 5.0

Rest-bundle of Symfony 4 requires config in 4.3 version, while Symfony 4 uses 5.0

By : NoobProgrammer
Date : March 29 2020, 07:55 AM
To fix the issue you can do Following this tutorial I tried to configure REST API on fresh new Symfony 4 install. , The tutorial you are using includes this as a starting point:
code :
composer create-project \
    symfony/skeleton rest_api_project
composer create-project\
    symfony/skeleton rest_api_project "4.*"
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