diff --git a/src/App.tsx b/src/App.tsx
index db56b44b0..4af048297 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,6 +1,7 @@
-import React from 'react';
+import React, { useEffect, useState } from 'react';
 import 'bulma/bulma.sass';
 import '@fortawesome/fontawesome-free/css/all.css';
+
 import './App.scss';
 
 import classNames from 'classnames';
@@ -9,7 +10,31 @@ import { PostDetails } from './components/PostDetails';
 import { UserSelector } from './components/UserSelector';
 import { Loader } from './components/Loader';
 
+import { getPosts } from './api/posts';
+
+import { User } from './types/User';
+import { Post } from './types/Post';
+
 export const App: React.FC = () => {
+  const [selectedUser, setSelectedUser] = useState<User | null>(null);
+  const [isLoading, setIsLoading] = useState(false);
+  const [isError, setIsError] = useState(false);
+  const [usersPosts, setUsersPosts] = useState<Post[] | null>(null);
+  const [selectedPost, setSelectedPost] = useState<Post | null>(null);
+
+  useEffect(() => {
+    setIsError(false);
+
+    if (selectedUser) {
+      setIsLoading(true);
+
+      getPosts(selectedUser)
+        .then(setUsersPosts)
+        .catch(() => setIsError(true))
+        .finally(() => setIsLoading(false));
+    }
+  }, [selectedUser]);
+
   return (
     <main className="section">
       <div className="container">
@@ -17,28 +42,46 @@ export const App: React.FC = () => {
           <div className="tile is-parent">
             <div className="tile is-child box is-success">
               <div className="block">
-                <UserSelector />
+                <UserSelector
+                  selectedUser={selectedUser}
+                  onChoose={setSelectedUser}
+                />
               </div>
 
               <div className="block" data-cy="MainContent">
-                <p data-cy="NoSelectedUser">
-                  No user selected
-                </p>
-
-                <Loader />
+                {isLoading && (
+                  <Loader />
+                )}
 
-                <div
-                  className="notification is-danger"
-                  data-cy="PostsLoadingError"
-                >
-                  Something went wrong!
-                </div>
+                {!isLoading && !selectedUser && (
+                  <p data-cy="NoSelectedUser">
+                    No user selected
+                  </p>
+                )}
 
-                <div className="notification is-warning" data-cy="NoPostsYet">
-                  No posts yet
-                </div>
+                {!isLoading && isError && (
+                  <div
+                    className="notification is-danger"
+                    data-cy="PostsLoadingError"
+                  >
+                    Something went wrong!
+                  </div>
+                )}
 
-                <PostsList />
+                {!isLoading && !isError && usersPosts && (!usersPosts.length ? (
+                  <div
+                    className="notification is-warning"
+                    data-cy="NoPostsYet"
+                  >
+                    No posts yet
+                  </div>
+                ) : (
+                  <PostsList
+                    posts={usersPosts}
+                    onChoose={setSelectedPost}
+                    selectedPost={selectedPost}
+                  />
+                ))}
               </div>
             </div>
           </div>
@@ -50,11 +93,11 @@ export const App: React.FC = () => {
               'is-parent',
               'is-8-desktop',
               'Sidebar',
-              'Sidebar--open',
+              { 'Sidebar--open': selectedPost },
             )}
           >
             <div className="tile is-child box is-success ">
-              <PostDetails />
+              {selectedPost && (<PostDetails post={selectedPost} />)}
             </div>
           </div>
         </div>
diff --git a/src/api/comments.ts b/src/api/comments.ts
new file mode 100644
index 000000000..b220836ba
--- /dev/null
+++ b/src/api/comments.ts
@@ -0,0 +1,24 @@
+import { Comment } from '../types/Comment';
+import { Post } from '../types/Post';
+import { client } from '../utils/fetchClient';
+
+type Parameters = {
+  name: string;
+  email: string;
+  body: string;
+  postId: number;
+};
+
+export const getComments = ({ id }: Post) => {
+  return client.get<Comment[]>(`/comments?postId=${id}`);
+};
+
+export const deleteComment = (id: number) => {
+  return client.delete(`/comments/${id}`);
+};
+
+export const addComment = (
+  comment: Parameters,
+) => {
+  return client.post<Comment>('/comments', comment);
+};
diff --git a/src/api/posts.ts b/src/api/posts.ts
new file mode 100644
index 000000000..bc8febf7f
--- /dev/null
+++ b/src/api/posts.ts
@@ -0,0 +1,7 @@
+import { Post } from '../types/Post';
+import { User } from '../types/User';
+import { client } from '../utils/fetchClient';
+
+export const getPosts = ({ id }: User) => {
+  return client.get<Post[]>(`/posts?userId=${id}`);
+};
diff --git a/src/api/users.ts b/src/api/users.ts
new file mode 100644
index 000000000..816c8274b
--- /dev/null
+++ b/src/api/users.ts
@@ -0,0 +1,6 @@
+import { User } from '../types/User';
+import { client } from '../utils/fetchClient';
+
+export const getUsers = () => {
+  return client.get<User[]>('/users');
+};
diff --git a/src/components/NewCommentForm.tsx b/src/components/NewCommentForm.tsx
index 73a8a0b45..7e965351b 100644
--- a/src/components/NewCommentForm.tsx
+++ b/src/components/NewCommentForm.tsx
@@ -1,8 +1,97 @@
-import React from 'react';
+import React, { useState } from 'react';
+import classNames from 'classnames';
+
+import { addComment } from '../api/comments';
+import { Comment } from '../types/Comment';
+
+type Props = {
+  setComments: React.Dispatch<React.SetStateAction<Comment[] | null>>;
+  postId: number;
+  setIsError: React.Dispatch<React.SetStateAction<boolean>>;
+};
+
+export const NewCommentForm: React.FC<Props> = ({
+  setComments,
+  postId,
+  setIsError,
+}) => {
+  const [name, setName] = useState('');
+  const [email, setEmail] = useState('');
+  const [body, setBody] = useState('');
+  const [isNameError, setIsNameError] = useState(false);
+  const [isEmailError, setIsEmailError] = useState(false);
+  const [isCommentError, setIsCommentError] = useState(false);
+  const [isLoading, setIsLoading] = useState(false);
+
+  const handleName = (event: React.ChangeEvent<HTMLInputElement>) => {
+    setName(event.target.value);
+    setIsNameError(false);
+  };
+
+  const handleEmail = (event: React.ChangeEvent<HTMLInputElement>) => {
+    setEmail(event.target.value);
+    setIsEmailError(false);
+  };
+
+  const handleNewComment = (event: React.ChangeEvent<HTMLTextAreaElement>) => {
+    setBody(event.target.value);
+    setIsCommentError(false);
+  };
+
+  const handleOnSubmit = (event: React.FormEvent<HTMLFormElement>) => {
+    event.preventDefault();
+
+    const comment = {
+      name: name.trim(),
+      email: email.trim(),
+      body: body.trim(),
+      postId,
+    };
+
+    if (!comment.name.length) {
+      setIsNameError(true);
+    }
+
+    if (!comment.email.length) {
+      setIsEmailError(true);
+    }
+
+    if (!comment.body.length) {
+      setIsCommentError(true);
+    }
+
+    if (comment.name.length && comment.email.length && comment.body.length) {
+      setIsLoading(true);
+
+      addComment(comment)
+        .then(newComment => {
+          setComments(comments => (
+            (comments) ? [...comments, newComment] : [newComment]
+          ));
+          setIsError(false);
+          setBody('');
+        })
+        .catch(() => setIsError(true))
+        .finally(() => {
+          setIsLoading(false);
+        });
+    }
+  };
+
+  const reset = () => {
+    setName('');
+    setEmail('');
+    setBody('');
+    setIsNameError(false);
+    setIsEmailError(false);
+    setIsCommentError(false);
+  };
 
-export const NewCommentForm: React.FC = () => {
   return (
-    <form data-cy="NewCommentForm">
+    <form
+      data-cy="NewCommentForm"
+      onSubmit={(event) => handleOnSubmit(event)}
+    >
       <div className="field" data-cy="NameField">
         <label className="label" htmlFor="comment-author-name">
           Author Name
@@ -14,24 +103,33 @@ export const NewCommentForm: React.FC = () => {
             name="name"
             id="comment-author-name"
             placeholder="Name Surname"
-            className="input is-danger"
+            className={classNames(
+              'input',
+              { 'is-danger': isNameError },
+            )}
+            value={name}
+            onChange={handleName}
           />
 
           <span className="icon is-small is-left">
             <i className="fas fa-user" />
           </span>
 
-          <span
-            className="icon is-small is-right has-text-danger"
-            data-cy="ErrorIcon"
-          >
-            <i className="fas fa-exclamation-triangle" />
-          </span>
+          {isNameError && (
+            <span
+              className="icon is-small is-right has-text-danger"
+              data-cy="ErrorIcon"
+            >
+              <i className="fas fa-exclamation-triangle" />
+            </span>
+          )}
         </div>
 
-        <p className="help is-danger" data-cy="ErrorMessage">
-          Name is required
-        </p>
+        {isNameError && (
+          <p className="help is-danger" data-cy="ErrorMessage">
+            Name is required
+          </p>
+        )}
       </div>
 
       <div className="field" data-cy="EmailField">
@@ -41,28 +139,37 @@ export const NewCommentForm: React.FC = () => {
 
         <div className="control has-icons-left has-icons-right">
           <input
-            type="text"
+            type="email"
             name="email"
             id="comment-author-email"
             placeholder="email@test.com"
-            className="input is-danger"
+            className={classNames(
+              'input',
+              { 'is-danger': isEmailError },
+            )}
+            value={email}
+            onChange={handleEmail}
           />
 
           <span className="icon is-small is-left">
             <i className="fas fa-envelope" />
           </span>
 
-          <span
-            className="icon is-small is-right has-text-danger"
-            data-cy="ErrorIcon"
-          >
-            <i className="fas fa-exclamation-triangle" />
-          </span>
+          {isEmailError && (
+            <span
+              className="icon is-small is-right has-text-danger"
+              data-cy="ErrorIcon"
+            >
+              <i className="fas fa-exclamation-triangle" />
+            </span>
+          )}
         </div>
 
-        <p className="help is-danger" data-cy="ErrorMessage">
-          Email is required
-        </p>
+        {isEmailError && (
+          <p className="help is-danger" data-cy="ErrorMessage">
+            Email is required
+          </p>
+        )}
       </div>
 
       <div className="field" data-cy="BodyField">
@@ -75,25 +182,42 @@ export const NewCommentForm: React.FC = () => {
             id="comment-body"
             name="body"
             placeholder="Type comment here"
-            className="textarea is-danger"
+            className={classNames(
+              'textarea',
+              { 'is-danger': isCommentError },
+            )}
+            value={body}
+            onChange={handleNewComment}
           />
         </div>
 
-        <p className="help is-danger" data-cy="ErrorMessage">
-          Enter some text
-        </p>
+        {isCommentError && (
+          <p className="help is-danger" data-cy="ErrorMessage">
+            Enter some text
+          </p>
+        )}
       </div>
 
       <div className="field is-grouped">
         <div className="control">
-          <button type="submit" className="button is-link is-loading">
+          <button
+            type="submit"
+            className={classNames(
+              'button is-link',
+              { 'is-loading': isLoading },
+            )}
+          >
             Add
           </button>
         </div>
 
         <div className="control">
           {/* eslint-disable-next-line react/button-has-type */}
-          <button type="reset" className="button is-link is-light">
+          <button
+            type="reset"
+            className="button is-link is-light"
+            onClick={reset}
+          >
             Clear
           </button>
         </div>
diff --git a/src/components/PostDetails.tsx b/src/components/PostDetails.tsx
index ace945f0a..fc5058052 100644
--- a/src/components/PostDetails.tsx
+++ b/src/components/PostDetails.tsx
@@ -1,117 +1,138 @@
-import React from 'react';
+import React, { useEffect, useState } from 'react';
+
 import { Loader } from './Loader';
 import { NewCommentForm } from './NewCommentForm';
 
-export const PostDetails: React.FC = () => {
+import { Post } from '../types/Post';
+import { Comment } from '../types/Comment';
+
+import * as CommentsServices from '../api/comments';
+
+type Props = {
+  post: Post;
+};
+
+export const PostDetails: React.FC<Props> = ({ post }) => {
+  const [comments, setComments] = useState<Comment[] | null>(null);
+  const [isLoading, setIsLoading] = useState(false);
+  const [isError, setIsError] = useState(false);
+  const [isComment, setIsComment] = useState(false);
+
+  useEffect(() => {
+    setIsLoading(true);
+    setIsError(false);
+    setIsComment(false);
+
+    CommentsServices.getComments(post)
+      .then(setComments)
+      .catch(() => setIsError(true))
+      .finally(() => setIsLoading(false));
+  }, [post]);
+
+  const { id, title, body } = post;
+
+  const deleteComment = (commentId: number) => () => {
+    if (comments) {
+      setComments(() => comments.filter(comment => comment.id !== commentId));
+    }
+
+    CommentsServices.deleteComment(commentId)
+      .catch(() => {
+        setIsError(true);
+        setComments(comments);
+      });
+  };
+
+  const onButtonClick = () => {
+    setIsComment(true);
+  };
+
   return (
     <div className="content" data-cy="PostDetails">
       <div className="content" data-cy="PostDetails">
         <div className="block">
           <h2 data-cy="PostTitle">
-            #18: voluptate et itaque vero tempora molestiae
+            {`#${id}: ${title}`}
           </h2>
 
           <p data-cy="PostBody">
-            eveniet quo quis
-            laborum totam consequatur non dolor
-            ut et est repudiandae
-            est voluptatem vel debitis et magnam
+            {body}
           </p>
         </div>
 
         <div className="block">
-          <Loader />
+          {isLoading && (
+            <Loader />
+          )}
 
-          <div className="notification is-danger" data-cy="CommentsError">
-            Something went wrong
-          </div>
+          {isError && (
+            <div className="notification is-danger" data-cy="CommentsError">
+              Something went wrong
+            </div>
+          )}
 
-          <p className="title is-4" data-cy="NoCommentsMessage">
-            No comments yet
-          </p>
+          {!isLoading && !isError && comments && (!comments.length ? (
+            <p className="title is-4" data-cy="NoCommentsMessage">
+              No comments yet
+            </p>
+          ) : (
+            <>
+              <p className="title is-4">Comments:</p>
 
-          <p className="title is-4">Comments:</p>
-
-          <article className="message is-small" data-cy="Comment">
-            <div className="message-header">
-              <a href="mailto:misha@mate.academy" data-cy="CommentAuthor">
-                Misha Hrynko
-              </a>
-              <button
-                data-cy="CommentDelete"
-                type="button"
-                className="delete is-small"
-                aria-label="delete"
-              >
-                delete button
-              </button>
-            </div>
+              {comments.map(comment => {
+                const { name, email } = comment;
 
-            <div className="message-body" data-cy="CommentBody">
-              Some comment
-            </div>
-          </article>
-
-          <article className="message is-small" data-cy="Comment">
-            <div className="message-header">
-              <a
-                href="mailto:misha@mate.academy"
-                data-cy="CommentAuthor"
-              >
-                Misha Hrynko
-              </a>
-
-              <button
-                data-cy="CommentDelete"
-                type="button"
-                className="delete is-small"
-                aria-label="delete"
-              >
-                delete button
-              </button>
-            </div>
-            <div
-              className="message-body"
-              data-cy="CommentBody"
-            >
-              One more comment
-            </div>
-          </article>
-
-          <article className="message is-small" data-cy="Comment">
-            <div className="message-header">
-              <a
-                href="mailto:misha@mate.academy"
-                data-cy="CommentAuthor"
-              >
-                Misha Hrynko
-              </a>
-
-              <button
-                data-cy="CommentDelete"
-                type="button"
-                className="delete is-small"
-                aria-label="delete"
-              >
-                delete button
-              </button>
-            </div>
+                return (
+                  <article
+                    className="message is-small"
+                    data-cy="Comment"
+                    key={comment.id}
+                  >
+                    <div className="message-header">
+                      <a
+                        href={`mailto:${email}`}
+                        data-cy="CommentAuthor"
+                      >
+                        {name}
+                      </a>
 
-            <div className="message-body" data-cy="CommentBody">
-              {'Multi\nline\ncomment'}
-            </div>
-          </article>
-
-          <button
-            data-cy="WriteCommentButton"
-            type="button"
-            className="button is-link"
-          >
-            Write a comment
-          </button>
+                      <button
+                        data-cy="CommentDelete"
+                        type="button"
+                        className="delete is-small"
+                        aria-label="delete"
+                        onClick={deleteComment(comment.id)}
+                      />
+                    </div>
+
+                    <div className="message-body" data-cy="CommentBody">
+                      {comment.body}
+                    </div>
+                  </article>
+                );
+              })}
+            </>
+          ))}
+
+          {!isComment && !isError && !isLoading && (
+            <button
+              data-cy="WriteCommentButton"
+              type="button"
+              className="button is-link"
+              onClick={onButtonClick}
+            >
+              Write a comment
+            </button>
+          )}
         </div>
 
-        <NewCommentForm />
+        {isComment && (
+          <NewCommentForm
+            setComments={setComments}
+            postId={post.id}
+            setIsError={setIsError}
+          />
+        )}
       </div>
     </div>
   );
diff --git a/src/components/PostsList.tsx b/src/components/PostsList.tsx
index 6e6efc0f3..d5161bb38 100644
--- a/src/components/PostsList.tsx
+++ b/src/components/PostsList.tsx
@@ -1,85 +1,69 @@
 import React from 'react';
+import classNames from 'classnames';
 
-export const PostsList: React.FC = () => (
-  <div data-cy="PostsList">
-    <p className="title">Posts:</p>
+import { Post } from '../types/Post';
 
-    <table className="table is-fullwidth is-striped is-hoverable is-narrow">
-      <thead>
-        <tr className="has-background-link-light">
-          <th>#</th>
-          <th>Title</th>
-          <th> </th>
-        </tr>
-      </thead>
+type Props = {
+  posts: Post[];
+  onChoose: React.Dispatch<React.SetStateAction<Post | null>>;
+  selectedPost: Post | null;
+};
 
-      <tbody>
-        <tr data-cy="Post">
-          <td data-cy="PostId">17</td>
+export const PostsList: React.FC<Props> = ({
+  posts,
+  onChoose,
+  selectedPost,
+}) => {
+  const choosePost = (post: Post | null) => () => {
+    onChoose(post);
+  };
 
-          <td data-cy="PostTitle">
-            fugit voluptas sed molestias voluptatem provident
-          </td>
+  return (
+    <div data-cy="PostsList">
+      <p className="title">Posts:</p>
 
-          <td className="has-text-right is-vcentered">
-            <button
-              type="button"
-              data-cy="PostButton"
-              className="button is-link is-light"
-            >
-              Open
-            </button>
-          </td>
-        </tr>
+      <table className="table is-fullwidth is-striped is-hoverable is-narrow">
+        <thead>
+          <tr className="has-background-link-light">
+            <th>#</th>
+            <th>Title</th>
+            <th> </th>
+          </tr>
+        </thead>
 
-        <tr data-cy="Post">
-          <td data-cy="PostId">18</td>
+        <tbody>
+          {posts.map(post => {
+            const isSelected = (selectedPost?.id === post.id);
 
-          <td data-cy="PostTitle">
-            voluptate et itaque vero tempora molestiae
-          </td>
+            return (
+              <tr
+                data-cy="Post"
+                key={post.id}
+              >
+                <td data-cy="PostId">{post.id}</td>
 
-          <td className="has-text-right is-vcentered">
-            <button
-              type="button"
-              data-cy="PostButton"
-              className="button is-link"
-            >
-              Close
-            </button>
-          </td>
-        </tr>
+                <td data-cy="PostTitle">
+                  {post.title}
+                </td>
 
-        <tr data-cy="Post">
-          <td data-cy="PostId">19</td>
-          <td data-cy="PostTitle">adipisci placeat illum aut reiciendis qui</td>
-
-          <td className="has-text-right is-vcentered">
-            <button
-              type="button"
-              data-cy="PostButton"
-              className="button is-link is-light"
-            >
-              Open
-            </button>
-          </td>
-        </tr>
-
-        <tr data-cy="Post">
-          <td data-cy="PostId">20</td>
-          <td data-cy="PostTitle">doloribus ad provident suscipit at</td>
-
-          <td className="has-text-right is-vcentered">
-            <button
-              type="button"
-              data-cy="PostButton"
-              className="button is-link is-light"
-            >
-              Open
-            </button>
-          </td>
-        </tr>
-      </tbody>
-    </table>
-  </div>
-);
+                <td className="has-text-right is-vcentered">
+                  <button
+                    type="button"
+                    data-cy="PostButton"
+                    className={classNames(
+                      'button is-link',
+                      { 'is-light': !isSelected },
+                    )}
+                    onClick={choosePost(isSelected ? null : post)}
+                  >
+                    {isSelected ? 'Close' : 'Open'}
+                  </button>
+                </td>
+              </tr>
+            );
+          })}
+        </tbody>
+      </table>
+    </div>
+  );
+};
diff --git a/src/components/UserSelector.tsx b/src/components/UserSelector.tsx
index cb83a8f68..4e3eea53c 100644
--- a/src/components/UserSelector.tsx
+++ b/src/components/UserSelector.tsx
@@ -1,6 +1,31 @@
-import React from 'react';
+import React, { useEffect, useState } from 'react';
+import cn from 'classnames';
+
+import { User } from '../types/User';
+import { getUsers } from '../api/users';
+
+type Props = {
+  selectedUser: User | null;
+  onChoose: React.Dispatch<React.SetStateAction<User | null>>;
+};
+
+export const UserSelector: React.FC<Props> = ({ selectedUser, onChoose }) => {
+  const [users, setUsers] = useState<User[]>([]);
+  const [isDropDown, setIsDropDown] = useState(false);
+
+  useEffect(() => {
+    getUsers()
+      .then(setUsers)
+      .catch(() => {});
+  }, []);
+
+  const handleIsDropDown = () => setIsDropDown(!isDropDown);
+
+  const selectUser = (user: User) => () => {
+    handleIsDropDown();
+    onChoose(user);
+  };
 
-export const UserSelector: React.FC = () => {
   return (
     <div
       data-cy="UserSelector"
@@ -12,8 +37,11 @@ export const UserSelector: React.FC = () => {
           className="button"
           aria-haspopup="true"
           aria-controls="dropdown-menu"
+          onClick={handleIsDropDown}
         >
-          <span>Choose a user</span>
+          <span>
+            {!selectedUser ? 'Choose a user' : selectedUser.name}
+          </span>
 
           <span className="icon is-small">
             <i className="fas fa-angle-down" aria-hidden="true" />
@@ -21,15 +49,25 @@ export const UserSelector: React.FC = () => {
         </button>
       </div>
 
-      <div className="dropdown-menu" id="dropdown-menu" role="menu">
-        <div className="dropdown-content">
-          <a href="#user-1" className="dropdown-item">Leanne Graham</a>
-          <a href="#user-2" className="dropdown-item is-active">Ervin Howell</a>
-          <a href="#user-3" className="dropdown-item">Clementine Bauch</a>
-          <a href="#user-4" className="dropdown-item">Patricia Lebsack</a>
-          <a href="#user-5" className="dropdown-item">Chelsey Dietrich</a>
+      {isDropDown && (
+        <div className="dropdown-menu" id="dropdown-menu" role="menu">
+          <div className="dropdown-content">
+            {users.map(user => (
+              <a
+                key={user.id}
+                href={`#user-${user.id}`}
+                className={cn(
+                  'dropdown-item',
+                  { 'is-active': selectedUser?.id === user.id },
+                )}
+                onClick={selectUser(user)}
+              >
+                {user.name}
+              </a>
+            ))}
+          </div>
         </div>
-      </div>
+      )}
     </div>
   );
 };
diff --git a/src/utils/fetchClient.ts b/src/utils/fetchClient.ts
index 93208df11..950f90cf2 100644
--- a/src/utils/fetchClient.ts
+++ b/src/utils/fetchClient.ts
@@ -1,31 +1,28 @@
+/* eslint-disable @typescript-eslint/no-explicit-any */
 const BASE_URL = 'https://mate.academy/students-api';
 
-// a promise resolved after a given delay
 function wait(delay: number) {
   return new Promise(resolve => {
     setTimeout(resolve, delay);
   });
 }
 
-// To have autocompletion and avoid mistypes
 type RequestMethod = 'GET' | 'POST' | 'PATCH' | 'DELETE';
 
 function request<T>(
   url: string,
   method: RequestMethod = 'GET',
-  data: any = null, // we can send any data to the server
+  data: any = null,
 ): Promise<T> {
   const options: RequestInit = { method };
 
   if (data) {
-    // We add body and Content-Type only for the requests with data
     options.body = JSON.stringify(data);
     options.headers = {
       'Content-Type': 'application/json; charset=UTF-8',
     };
   }
 
-  // for a demo purpose we emulate a delay to see if Loaders work
   return wait(300)
     .then(() => fetch(BASE_URL + url, options))
     .then(response => response.json());