diff --git a/src/app/app.component.ts b/src/app/app.component.ts
index 35e899d..9ac92e0 100644
--- a/src/app/app.component.ts
+++ b/src/app/app.component.ts
@@ -30,6 +30,7 @@ export class AppComponent implements OnInit {
     this.data.currentUserInfo.subscribe(user => {
       this.userInfo = user;
       console.log(this.userInfo);
+      this.data.changeChatIDs(this.chatIDs)
     })
   }
 }
diff --git a/src/app/app.module.ts b/src/app/app.module.ts
index 70177f6..2029fdc 100644
--- a/src/app/app.module.ts
+++ b/src/app/app.module.ts
@@ -25,6 +25,7 @@ import { HttpClientModule } from '@angular/common/http';
 import { ProfileComponent } from './components/profile/profile.component';
 import { ImprintComponent } from './components/imprint/imprint.component';
 import { AboutComponent } from './components/about/about.component';
+import { ChatcontactsComponent } from './components/chatmanager/chatcontacts/chatcontacts.component';
 
 const config: SocketIoConfig = { url: 'http://localhost:4444', options: {} };
 
@@ -53,6 +54,7 @@ const appRoutes: Routes = [
     GroupsComponent,
     ChatmanagerComponent,
     ChatlistComponent,
+    ChatcontactsComponent,
     PostlistComponent,
     ImprintComponent,
     AboutComponent,
diff --git a/src/app/components/chat/chat.component.ts b/src/app/components/chat/chat.component.ts
index 45b8749..50dedca 100644
--- a/src/app/components/chat/chat.component.ts
+++ b/src/app/components/chat/chat.component.ts
@@ -9,9 +9,9 @@ import { Chatinfo } from 'src/app/models/chatinfo';
 })
 export class ChatComponent implements OnInit {
 
-  messages:Array<Chatmessage> = [new Chatmessage("Hallo",true), new Chatmessage("Hallo",false), 
-  new Chatmessage("Hallo",true), new Chatmessage("Hallo",false), new Chatmessage("Hallo",true), 
-  new Chatmessage("Hallo",false)]
+  messages:Array<Chatmessage> = [new Chatmessage("Hallo", "01.01.",true), new Chatmessage("Hallo", "01.01.",true), 
+  new Chatmessage("Hallo", "01.01.",true), new Chatmessage("Hallo", "01.01.",true), new Chatmessage("Hallo", "01.01.",true), 
+  new Chatmessage("Hallo", "01.01.",true)]
 
   @Output() goBackEvent = new EventEmitter<boolean>();
   @Input() childChat: Chatinfo;
diff --git a/src/app/components/chatlist/chatlist.component.ts b/src/app/components/chatlist/chatlist.component.ts
index 83c2402..4c12acc 100644
--- a/src/app/components/chatlist/chatlist.component.ts
+++ b/src/app/components/chatlist/chatlist.component.ts
@@ -13,6 +13,7 @@ export class ChatlistComponent implements OnInit {
   new Chatinfo("David", "23.06.19 12:50"), new Chatinfo("Bruno", "23.06.19 12:50")]
 
   @Output() showChatEvent = new EventEmitter<Chatinfo>();
+  @Output() showCreateChatEvent = new EventEmitter<boolean>();
   selectedChat: Chatinfo;
 
   constructor(private chatService: ChatService) { }
@@ -20,8 +21,8 @@ export class ChatlistComponent implements OnInit {
   ngOnInit() {
   }
 
-  newChat() {
-    this.chatService.getSelfName()
+  showNewChat() {
+    this.showCreateChatEvent.emit(true)
   }
 
   showChat(pChat: Chatinfo) {
diff --git a/src/app/components/chatmanager/chatcontacts/chatcontacts.component.html b/src/app/components/chatmanager/chatcontacts/chatcontacts.component.html
new file mode 100644
index 0000000..a55f166
--- /dev/null
+++ b/src/app/components/chatmanager/chatcontacts/chatcontacts.component.html
@@ -0,0 +1,15 @@
+<div id="contacts">
+    <div id='header'>
+        <button id="goback" (click)="goBack()"><span><i class="fa fa-arrow-left fa-3x" aria-hidden="true"></i></span></button>
+        <span class='title'>Contacts</span>
+    </div>
+    <div class="search-container">
+    </div>
+    <div class="data-container">
+        <div class="contact-item" *ngFor="let contact of contactList"
+          [class.selected]="contact === selectedContact" (click)="createChat(contact.id)">  
+            <div class="picture">Pic</div>
+            <div class="name"><span>{{contact.name}}</span></div>
+        </div>
+    </div>
+</div>
diff --git a/src/app/components/chatmanager/chatcontacts/chatcontacts.component.sass b/src/app/components/chatmanager/chatcontacts/chatcontacts.component.sass
new file mode 100644
index 0000000..e69de29
diff --git a/src/app/components/chatmanager/chatcontacts/chatcontacts.component.spec.ts b/src/app/components/chatmanager/chatcontacts/chatcontacts.component.spec.ts
new file mode 100644
index 0000000..f94d884
--- /dev/null
+++ b/src/app/components/chatmanager/chatcontacts/chatcontacts.component.spec.ts
@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ChatcontactsComponent } from './chatcontacts.component';
+
+describe('ChatcontactsComponent', () => {
+  let component: ChatcontactsComponent;
+  let fixture: ComponentFixture<ChatcontactsComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ChatcontactsComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ChatcontactsComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});
diff --git a/src/app/components/chatmanager/chatcontacts/chatcontacts.component.ts b/src/app/components/chatmanager/chatcontacts/chatcontacts.component.ts
new file mode 100644
index 0000000..6f2d3c3
--- /dev/null
+++ b/src/app/components/chatmanager/chatcontacts/chatcontacts.component.ts
@@ -0,0 +1,30 @@
+import { Component, OnInit, Output, EventEmitter } from '@angular/core';
+import { FriendInfo } from 'src/app/models/friendinfo';
+import { ChatService } from 'src/app/services/chat/chat.service';
+
+@Component({
+  selector: 'chatmanager-chatcontacts',
+  templateUrl: './chatcontacts.component.html',
+  styleUrls: ['./chatcontacts.component.sass']
+})
+export class ChatcontactsComponent implements OnInit {
+
+  @Output() goBackEvent = new EventEmitter<boolean>();
+  selectedContact: FriendInfo
+
+  constructor(private chatService: ChatService) { }
+
+  ngOnInit() {
+  }
+
+  goBack() {
+    this.goBackEvent.emit(true)
+  }
+
+  createChat(pFriendInfo: FriendInfo) {
+    this.selectedContact = pFriendInfo
+    this.chatService.createNewChat(pFriendInfo.id)
+    this.goBack()
+  }
+
+}
diff --git a/src/app/components/chatmanager/chatmanager.component.html b/src/app/components/chatmanager/chatmanager.component.html
index e3964c7..039d4a1 100644
--- a/src/app/components/chatmanager/chatmanager.component.html
+++ b/src/app/components/chatmanager/chatmanager.component.html
@@ -1,6 +1,9 @@
 <div *ngIf="showChatlist">
-  <chatmanager-chatlist (showChatEvent)="showSpecialChat($event)"></chatmanager-chatlist>
+  <chatmanager-chatlist (showChatEvent)="showSpecialChat($event)" (showCreateChatEvent)="showNewChat($event)"></chatmanager-chatlist>
 </div>
 <div *ngIf="showChat">
     <chatmanager-chat (goBackEvent)="goBackToChatlist($event)" [childChat]="parentSelectedChat"></chatmanager-chat>
 </div>
+<div *ngIf="showCreateNewChat">
+    <chatmanager-chatcontacts (goBackEvent)="goBackToChatlist($event)"></chatmanager-chatcontacts>
+</div>
diff --git a/src/app/components/chatmanager/chatmanager.component.ts b/src/app/components/chatmanager/chatmanager.component.ts
index b2db03a..578f96d 100644
--- a/src/app/components/chatmanager/chatmanager.component.ts
+++ b/src/app/components/chatmanager/chatmanager.component.ts
@@ -2,6 +2,7 @@ import { Component, OnInit, ViewChild } from '@angular/core';
 import { ChatService } from '../../services/chat/chat.service'
 import { ChatComponent } from '../chat/chat.component';
 import { Chatinfo } from 'src/app/models/chatinfo';
+import { DatasharingService } from 'src/app/services/datasharing.service';
 
 @Component({
   selector: 'home-chatmanager',
@@ -12,22 +13,36 @@ export class ChatmanagerComponent implements OnInit {
 
   showChatlist: boolean = true
   showChat: boolean = false
+  showCreateNewChat: boolean = false
   parentSelectedChat: Chatinfo
 
-  constructor() { }
+  chatIDs: number[]
+
+  constructor(private data: DatasharingService) { }
 
   ngOnInit() {
+    this.data.currentChatIDs.subscribe(chatIDs => {
+      this.chatIDs = chatIDs
+    })
   }
 
   goBackToChatlist($event) {
     this.showChatlist = $event
     this.showChat = false
+    this.showCreateNewChat = false
   }
 
   showSpecialChat($event) {
     this.parentSelectedChat = $event
     this.showChatlist = false
     this.showChat = true
+    this.showCreateNewChat = false
+  }
+
+  showNewChat($event) {
+    this.showChatlist = false
+    this.showChat = false
+    this.showCreateNewChat = $event
   }
 
 }
diff --git a/src/app/components/feed/feed.component.ts b/src/app/components/feed/feed.component.ts
index d7932a0..681817a 100644
--- a/src/app/components/feed/feed.component.ts
+++ b/src/app/components/feed/feed.component.ts
@@ -1,5 +1,6 @@
 import { Component, OnInit } from '@angular/core';
 import { Post } from 'src/app/models/post';
+import { FeedService } from 'src/app/services/feed/feed.service';
 
 @Component({
   selector: 'home-feed',
@@ -11,7 +12,7 @@ export class FeedComponent implements OnInit {
   viewNew: boolean = true
   viewMostLiked: boolean = false
 
-  feedNew: Array<Post> = [
+  feedNew: Array<Post>/* = [
     new Post("1", "Niklas", "@nick123", "This is a test message", "01.10.2019 10:00 Uhr", 10),
     new Post("2", "Niklas", "@nick123", "This is a test message", "01.10.2019 10:00 Uhr", 10),
     new Post("3", "Niklas", "@nick123", "This is a test message", "01.10.2019 10:00 Uhr", 10),
@@ -19,29 +20,33 @@ export class FeedComponent implements OnInit {
     new Post("5", "Niklas", "@nick123", "This is a test message", "01.10.2019 10:00 Uhr", 10),
     new Post("6", "Niklas", "@nick123", "This is a test message", "01.10.2019 10:00 Uhr", 10),
     new Post("7", "Niklas", "@nick123", "This is a test message", "01.10.2019 10:00 Uhr", 10)
-  ]
-  feedMostLiked: Array<Post> = [
+  ]*/
+  feedMostLiked: Array<Post>/* = [
     new Post("1", "Max", "@max123", "This is a test message", "01.10.2019 10:00 Uhr", 50),
     new Post("2", "Max", "@max123", "This is a test message", "01.10.2019 10:00 Uhr", 50),
     new Post("3", "Max", "@max123", "This is a test message", "01.10.2019 10:00 Uhr", 50),
     new Post("4", "Max", "@max123", "This is a test message", "01.10.2019 10:00 Uhr", 50),
     new Post("5", "Max", "@max123", "This is a test message", "01.10.2019 10:00 Uhr", 50)
-  ]
+  ]*/
 
   parentSelectedPostList: Array<Post> = this.feedNew
 
-  constructor() { }
+  constructor(private feedService: FeedService) { }
 
   ngOnInit() {
+    this.feedNew = this.feedService.getAllPosts()
+    this.feedMostLiked = this.feedService.getAllPosts()
   }
 
   showNew() {
+    this.feedNew = this.feedService.getAllPosts()
     this.viewNew = true
     this.viewMostLiked = false
     this.parentSelectedPostList = this.feedNew
   }
 
   showMostLiked() {
+    this.feedMostLiked = this.feedService.getAllPosts()
     this.viewNew = false
     this.viewMostLiked = true
     this.parentSelectedPostList = this.feedMostLiked
diff --git a/src/app/components/feed/postlist/postlist.component.html b/src/app/components/feed/postlist/postlist.component.html
index cf57aa2..f233e61 100644
--- a/src/app/components/feed/postlist/postlist.component.html
+++ b/src/app/components/feed/postlist/postlist.component.html
@@ -1,19 +1,20 @@
-<div class="feeditem" *ngFor = "let post of childPostList">
+<div class="feeditem" *ngFor = "let post of childPostList" [class.selected]="post === selectedPost">
   <div class="itemhead">
     <div class="usertag">
-      <span class="title">{{post.username}}</span>
-      <span class="handle"><a href="#">{{post.handle}}</a></span>
+      <span class="title">{{post.author.name}}</span>
+      <span class="handle"><a href="#">@{{post.author.handle}}</a></span>
     </div>
     <span class="date">{{post.date}}</span>
   </div>
   <div class="itembody">
     <div class='text'>
-        <p>{{post.message}}</p>
+        <p>{{post.content}}</p>
     </div>
     <div class="vote">
-        <button id="down" type='submit'><span><i class="fa fa-thumbs-o-down fa-2x" aria-hidden="true"></i></span></button>
-        <button id="up" type='submit'><span><i class="fa fa-thumbs-o-up fa-2x" aria-hidden="true"></i></span></button>
-        <span id="votecounter"> Votes: {{post.votes}}</span>
+        <button id="down" type='submit'><span><i class="fa fa-thumbs-o-down fa-2x" aria-hidden="true" (click)="voteDown(post)"></i></span></button>
+        <button id="up" type='submit'><span><i class="fa fa-thumbs-o-up fa-2x" aria-hidden="true" (click)="voteUp(post)"></i></span></button>
+        <span id="downvotes">{{post.downvotes}}</span>
+        <span id="upvotes">{{post.upvotes}}</span>
     </div>
   </div>
 </div>
\ No newline at end of file
diff --git a/src/app/components/feed/postlist/postlist.component.sass b/src/app/components/feed/postlist/postlist.component.sass
index 7686625..9638469 100644
--- a/src/app/components/feed/postlist/postlist.component.sass
+++ b/src/app/components/feed/postlist/postlist.component.sass
@@ -53,6 +53,9 @@
             color: $cFeedDownVote
         #down:hover
             color: darken($cFeedDownVote, 10%)
-        #votecounter
-            @include gridPosition(2, 3, 1, 3)
+        #downvotes
+            @include gridPosition(2, 3, 1, 2)
+            text-align: center
+        #upvotes
+            @include gridPosition(2, 3, 2, 3)
             text-align: center
\ No newline at end of file
diff --git a/src/app/components/feed/postlist/postlist.component.ts b/src/app/components/feed/postlist/postlist.component.ts
index 5e64f59..d95d5dd 100644
--- a/src/app/components/feed/postlist/postlist.component.ts
+++ b/src/app/components/feed/postlist/postlist.component.ts
@@ -1,5 +1,6 @@
 import { Component, OnInit, Input } from '@angular/core';
 import { Post } from 'src/app/models/post';
+import { FeedService } from 'src/app/services/feed/feed.service';
 
 @Component({
   selector: 'feed-postlist',
@@ -9,10 +10,20 @@ import { Post } from 'src/app/models/post';
 export class PostlistComponent implements OnInit {
 
   @Input() childPostList: Array<Post>
+  selectedPost: Post
 
-  constructor() { }
+  constructor(private feedService: FeedService) { }
 
   ngOnInit() {
   }
 
+  voteUp(pPost: Post){
+    this.feedService.voteUp(pPost.id)
+    console.log("UPVOTE", pPost.id)
+  }
+
+  voteDown(pPost: Post){
+    this.feedService.voteDown(pPost.id)
+  }
+
 }
diff --git a/src/app/models/author.ts b/src/app/models/author.ts
new file mode 100644
index 0000000..f5f9965
--- /dev/null
+++ b/src/app/models/author.ts
@@ -0,0 +1,11 @@
+export class Author {
+    id: number
+    name: string
+    handle: string
+
+    constructor(pId: number, pName: string, pHandle: string) {
+        this.id = pId
+        this.name = pName
+        this.handle = pHandle
+    }
+}
\ No newline at end of file
diff --git a/src/app/models/chat.ts b/src/app/models/chat.ts
new file mode 100644
index 0000000..5af6bdc
--- /dev/null
+++ b/src/app/models/chat.ts
@@ -0,0 +1,16 @@
+import { Chatmessage } from "./chatmessage"
+
+export class Chat {
+    id: number
+    memberID: number
+    memberName: string
+    messages: Array<Chatmessage>
+    
+
+    constructor(pId: number, pMemberID: number, pMemberName: string, pMessages: Array<Chatmessage>) {
+        this.id = pId
+        this.memberID = pMemberID
+        this.memberName = pMemberName
+        this.messages = pMessages
+    }
+}
\ No newline at end of file
diff --git a/src/app/models/chatmessage.ts b/src/app/models/chatmessage.ts
index 286a2e6..a2a4910 100644
--- a/src/app/models/chatmessage.ts
+++ b/src/app/models/chatmessage.ts
@@ -1,9 +1,11 @@
 export class Chatmessage {
-    content: string;
-    myself: boolean;
+    content: string
+    date: string
+    myself: boolean
 
-    constructor(pContent: string, pMyself: boolean) {
+    constructor(pContent: string, pDate: string, pMyself: boolean) {
         this.content = pContent
+        this.date = pDate
         this.myself = pMyself
     }
 }
\ No newline at end of file
diff --git a/src/app/models/friendinfo.ts b/src/app/models/friendinfo.ts
new file mode 100644
index 0000000..970d7c6
--- /dev/null
+++ b/src/app/models/friendinfo.ts
@@ -0,0 +1,9 @@
+export class FriendInfo {
+    id: number
+    name: string
+
+    constructor(pId: number, pName: string) {
+        this.id = pId
+        this.name = pName
+    }
+}
\ No newline at end of file
diff --git a/src/app/models/post.ts b/src/app/models/post.ts
index 6628a63..eb7f2b3 100644
--- a/src/app/models/post.ts
+++ b/src/app/models/post.ts
@@ -1,17 +1,19 @@
+import { Author } from "./author"
+
 export class Post {
-    id: string
-    username: string
-    handle: string
-    message: string
+    id: number
+    content: string
     date: string
-    votes: number
+    upvotes: number
+    downvotes: number
+    author: Author
 
-    constructor(pId: string, pUsername: string, pHandle: string, pMessage: string, pDate: string, pVotes: number) {
+    constructor(pId: number, pContent: string, pUpvotes: number, pDownvotes: number, pDate: string, pAuthor: Author) {
         this.id = pId
-        this.username = pUsername
-        this.handle = pHandle
-        this.message = pMessage
+        this.content = pContent
+        this.upvotes = pUpvotes
+        this.downvotes = pDownvotes
         this.date = pDate
-        this.votes = pVotes
+        this.author = pAuthor
     }
 }
\ No newline at end of file
diff --git a/src/app/services/chat/chat.service.ts b/src/app/services/chat/chat.service.ts
index 6856582..55cde5d 100644
--- a/src/app/services/chat/chat.service.ts
+++ b/src/app/services/chat/chat.service.ts
@@ -1,59 +1,143 @@
 import { Injectable } from '@angular/core';
 import {Http, URLSearchParams, Headers} from '@angular/http';
-import {Apollo} from 'apollo-angular';
-import gql from 'graphql-tag';
+import { Chat } from 'src/app/models/chat';
+import { responsePathAsArray } from 'graphql';
+import { Chatmessage } from 'src/app/models/chatmessage';
+import { FriendInfo } from 'src/app/models/friendinfo';
 
 @Injectable({
   providedIn: 'root'
 })
 export class ChatService {
 
-  name: any
+  arr: number[]
+  ownID: number
+  chats: Array<Chat>
 
-  rates: any[];
-  loading = true;
-  error: any;
+  constructor(private http: Http) { }
 
-  constructor(private apollo: Apollo) { }
+  public getAllChats(): Array<Chat> {
+    let url = 'https://greenvironment.net/graphql'
+ 
+    let headers = new Headers()
+    headers.set('Content-Type', 'application/json')
+ 
+    this.http.post(url, this.getBodyForGetAllChats())
+    .subscribe(response => {
+        this.chats = this.updateAllChats(response.json())
+      });
+    return this.chats
+  }
 
-  public getSelfName2() {
-    this.apollo
-    .watchQuery<any>({
-      query: gql`
-        {
-          getSelf {
-            name
-          }
-        }
-      `,
+  public createNewChat(pUserID: number) {
+    let url = 'https://greenvironment.net/graphql'
+ 
+    let headers = new Headers()
+    headers.set('Content-Type', 'application/json')
+ 
+    this.http.post(url, this.getBodyForNewChat(pUserID))
+  }
+
+  public requestAllChatPartners(): Array<FriendInfo> {
+    let url = 'https://greenvironment.net/graphql'
+    let chatPartners: Array<FriendInfo>
+    let temp
+ 
+    let headers = new Headers()
+    headers.set('Content-Type', 'application/json')
+ 
+    this.http.post(url, this.getBodyForRequestOfAllChatPartners())
+    .subscribe(response => {
+      temp = response.json()
     })
-    .valueChanges.subscribe(result => {
-      this.name = result.data && result.data.name;
-      this.loading = result.loading;
-      this.error = result.errors;
-    });
-
-    console.log(this.name)
-  }
-
-  public getSelfName() {
-    this.apollo
-    .query<any>({
-      query: gql`
-        {
-          rates(currency: "USD") {
-            currency
-            rate
-          }
+
+    for(let chat of temp.data.getSelf.chats) {
+      let memberID: number
+      let memberName: string
+      for(let member of chat.members) {
+        if(member.id != this.ownID) {
+          memberID = member.id
+          memberName = member.name
         }
-      `,
-    })
-    .subscribe(result => {
-      this.rates = result.data && result.data.rates;
-      this.loading = result.loading;
-      this.error = result.errors;
-    });
+      }
+      chatPartners.push(new FriendInfo(memberID, memberName))
+    }
+
+    return chatPartners
+  }
+
+  public sendMessage(pChatID: number, pContent: string) {
+    let url = 'https://greenvironment.net/graphql'
+ 
+    let headers = new Headers()
+    headers.set('Content-Type', 'application/json')
+ 
+    this.http.post(url, this.getBodyForSendMessage(pChatID, pContent))
+  }
+
+  updateAllChats(pResponse: any): Array<Chat> {
+    let chats: Array<Chat>
+    for(let chat of pResponse.data.getSelf.chats) {
+      let memberID: number
+      let memberName: string
+      for(let member of chat.members) {
+        if(member.id != this.ownID) {
+          memberID = member.id
+          memberName = member.name
+        }
+      }
+      let messages: Array<Chatmessage>
+      for(let message of chat.messages) {
+        if(message.author.id == this.ownID) {
+          messages.push(new Chatmessage(message.content, message.createdAt, true))
+        } else {
+          messages.push(new Chatmessage(message.content, message.createdAt, false))
+        }
+      }
+      chats.push(new Chat(chat.id, memberID, memberName, messages))
+    }
+    return chats
+  }
+
+  getBodyForNewChat(pUserID: number) {
+    this.arr = [pUserID]
+    const body =  {query: `mutation($userID: number[]) {
+        createChat(members: $userID) {id} 
+      }`, variables: {
+          members: this.arr
+      }};
+
+      return body
+  }
+
+  getBodyForRequestOfAllChatPartners() {
+    const body =  {query: `query {
+        getSelf {
+          chats(first: 1000, offset: 0) {members{name, id}}
+        }}`
+      }
 
-    console.log(this.rates)
+      return body
+  }
+
+  getBodyForSendMessage(pchatID: number, pContent: string) {
+    const body =  {query: `mutation($chatID: number, $content: string) {
+        sendMessage(chatId: $chatID, content: $content) {id} 
+      }`, variables: {
+          chatId: pchatID,
+          content: pContent
+      }};
+
+      return body
+  }
+
+  getBodyForGetAllChats() {
+    const body =  {query: `query {
+        getSelf {
+          chats(first: 1000, offset: 0) {id, members{name, id}, 
+          messages(first: 1000, offset: 0) {author {id}, createdAt, content}}
+        }
+      }`
+      }
   }
 }
diff --git a/src/app/services/datasharing.service.ts b/src/app/services/datasharing.service.ts
index f15a310..d9f3916 100644
--- a/src/app/services/datasharing.service.ts
+++ b/src/app/services/datasharing.service.ts
@@ -8,11 +8,17 @@ import { User } from '../models/user';
 export class DatasharingService {
 
   private userInfoSource = new BehaviorSubject<User>(new User())
-  currentUserInfo = this.userInfoSource.asObservable();
+  private chatIDsSource = new BehaviorSubject<number[]>(new Array<number>())
+  currentUserInfo = this.userInfoSource.asObservable()
+  currentChatIDs = this.chatIDsSource.asObservable()
 
   constructor() { }
 
   changeUserInfo(pUserInfo: User) {
     this.userInfoSource.next(pUserInfo)
   }
+
+  changeChatIDs(pChatIDs: number[]) {
+    this.chatIDsSource.next(pChatIDs)
+  }
 }
diff --git a/src/app/services/feed/feed.service.spec.ts b/src/app/services/feed/feed.service.spec.ts
new file mode 100644
index 0000000..a8a5cfb
--- /dev/null
+++ b/src/app/services/feed/feed.service.spec.ts
@@ -0,0 +1,12 @@
+import { TestBed } from '@angular/core/testing';
+
+import { FeedService } from './feed.service';
+
+describe('FeedService', () => {
+  beforeEach(() => TestBed.configureTestingModule({}));
+
+  it('should be created', () => {
+    const service: FeedService = TestBed.get(FeedService);
+    expect(service).toBeTruthy();
+  });
+});
diff --git a/src/app/services/feed/feed.service.ts b/src/app/services/feed/feed.service.ts
new file mode 100644
index 0000000..6c6181f
--- /dev/null
+++ b/src/app/services/feed/feed.service.ts
@@ -0,0 +1,81 @@
+import { Injectable } from '@angular/core';
+import { Http } from '@angular/http';
+import { Post } from 'src/app/models/post';
+import { Author } from 'src/app/models/author';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class FeedService {
+
+  posts: Array<Post>
+
+  constructor(private http: Http) { }
+
+  public voteUp(pPostID: number): void {
+    let url = 'https://greenvironment.net/graphql'
+ 
+    let headers = new Headers()
+    headers.set('Content-Type', 'application/json')
+
+    const body = {query: `mutation($postId: number) {
+        vote(postId: $postId, type: UPVOTE)
+      }`, variables: {
+          postId: pPostID
+      }}
+ 
+    this.http.post(url, body)
+  }
+
+  public voteDown(pPostID: number): void {
+    let url = 'https://greenvironment.net/graphql'
+ 
+    let headers = new Headers()
+    headers.set('Content-Type', 'application/json')
+
+    const body = {query: `mutation($postId: number) {
+        vote(postId: $postId, type: DOWNVOTE)
+      }`, variables: {
+          postId: pPostID
+      }}
+ 
+    this.http.post(url, body)
+  }
+
+  public getAllPosts(): Array<Post> {
+    let url = 'https://greenvironment.net/graphql'
+ 
+    let headers = new Headers()
+    headers.set('Content-Type', 'application/json')
+ 
+    this.http.post(url, this.getBodyForGetAllChats())
+    .subscribe(response => {
+        this.posts = this.renderAllPosts(response.json())
+      });
+    return this.posts
+  }
+
+  getBodyForGetAllChats() {
+    const body =  {query: `query {
+        getPosts (first: 1000, offset: 0) {id, content, upvotes, downvotes, author{name, handle, id}, createdAt}
+      }`
+      }
+
+      return body
+  }
+
+  renderAllPosts(pResponse: any): Array<Post> {
+    let posts = new Array<Post>()
+    for(let post of pResponse.data.getPosts) {
+      let id: number = post.id
+      let content: string = post.content
+      let upvotes: number = post.upvotes
+      let downvotes: number = post.downvotes
+      let author = new Author(post.author.id, post.author.name, post.author.handle)
+      let date = post.createdAt
+
+      posts.push(new Post(id, content, upvotes, downvotes, date, author))
+    }
+    return posts
+  }
+}