added following functionality

src/app/components/tutorial-enhanced/thankyou-tutorial/thankyou-tutorial.component.html

@@ -12,7 +12,7 @@
             <img class="content__expand content__expand--smaller" src="assets/img/account.png" /><br />
         </a>
 
-        <a class="follow" href (click)="follow()" title="follow @Sengi_app with all your account(s)">
+        <a class="follow" href (click)="follow()" title="follow @Sengi_app with all your account(s)" [class.follow__disabled]="followingDisabled">
             Follow @Sengi_app
         </a>
     </p>

src/app/components/tutorial-enhanced/thankyou-tutorial/thankyou-tutorial.component.scss

@@ -10,8 +10,20 @@
     transition: all .2s;
     box-shadow: inset 0 0 5px rgb(0, 84, 122);
 
-    &:hover, &:focus {
+    &:hover,
+    &:focus {
         text-decoration: none;
         background-color: rgb(0, 84, 122);
     }
+
+    &__disabled {
+        opacity: .15;
+        border: 1px solid gray;
+
+        &:hover,
+        &:focus {
+            text-decoration: none;
+            background-color: gray;
+        }
+    }
 }

src/app/components/tutorial-enhanced/thankyou-tutorial/thankyou-tutorial.component.ts

@@ -1,18 +1,41 @@
 import { Component, OnInit } from '@angular/core';
 
+import { ToolsService } from '../../../services/tools.service';
+import { MastodonWrapperService } from '../../../services/mastodon-wrapper.service';
+import { NotificationService } from '../../../services/notification.service';
+
 @Component({
     selector: 'app-thankyou-tutorial',
     templateUrl: './thankyou-tutorial.component.html',
     styleUrls: ['../tutorial-enhanced.component.scss', './thankyou-tutorial.component.scss']
 })
 export class ThankyouTutorialComponent implements OnInit {
+    followingDisabled: boolean;
 
-    constructor() { }
+    constructor(
+        private readonly notificationService: NotificationService,
+        private readonly mastodonService: MastodonWrapperService,
+        private readonly toolsService: ToolsService) { }
 
     ngOnInit() {
     }
 
     follow(): boolean {
+        if(this.followingDisabled) return;
+        this.followingDisabled = true;        
+
+        const accounts = this.toolsService.getAllAccounts();
+        for (let acc of accounts) {
+            this.toolsService.findAccount(acc, "@sengi_app@mastodon.social")
+                .then(sengi => {
+                    return this.mastodonService.follow(acc, sengi);
+                })
+                .catch(err => {
+                    this.followingDisabled = false;
+                    this.notificationService.notifyHttpError(err, acc);
+                });
+        }
+
         return false;
     }
 }

src/app/services/tools.service.ts

@@ -119,6 +119,11 @@ export class ToolsService {
         return regAccounts.filter(x => x.isSelected);
     }
 
+    getAllAccounts(): AccountInfo[] {
+        let regAccounts = <AccountInfo[]>this.store.snapshot().registeredaccounts.accounts;
+        return regAccounts;
+    }
+
     getAccountById(accountId: string): AccountInfo {
         let regAccounts = <AccountInfo[]>this.store.snapshot().registeredaccounts.accounts;
         return regAccounts.find(x => x.id === accountId);