diff --git a/src/app/http.service.ts b/src/app/http.service.ts
new file mode 100644
index 0000000..93e1e15
--- /dev/null
+++ b/src/app/http.service.ts
@@ -0,0 +1,69 @@
+import { Injectable } from '@angular/core';
+import { User } from './shared/user';
+import { Company } from './shared/company';
+import { Email } from './shared/email';
+import { HttpClient, HttpErrorResponse } from '@angular/common/http';
+import { Observable } from 'rxjs/Observable';
+import { ErrorObservable } from 'rxjs/observable/ErrorObservable';
+import { catchError, retry } from 'rxjs/operators';
+import { HttpHeaders } from '@angular/common/http';
+
+@Injectable()
+export class HttpService {
+
+  static httpOptions = {
+    headers: new HttpHeaders({
+      'Content-Type':  'application/json'
+    })
+  };
+
+  constructor(public http: HttpClient) { }
+
+  static apiURL = 'http://35.196.111.251:3000';
+  static usersURL = '/users';
+  static usersURL2 = '/username';
+  static companiesURL = '/companies';
+  static loginURL = '/login';
+  static emailURL = '/emails';
+
+  // All services related to Users
+  getAllUsers() {
+    return this.http.get<User[]>(HttpService.apiURL + HttpService.usersURL);
+  }
+  getUserById(userId: string) {
+    return this.http.get<User>(HttpService.apiURL + HttpService.usersURL + '/' + userId);
+  }
+  getUserByUsername(username: string) {
+    return this.http.get<User>(HttpService.apiURL + HttpService.usersURL + HttpService.usersURL2 + '/' + username);
+  }
+  createUser(user: User) {
+    return this.http.post<User>(HttpService.apiURL + HttpService.usersURL,
+      JSON.stringify(user), HttpService.httpOptions);
+  }
+  updateUser(user, userId) {
+    return this.http.put<Object>(HttpService.apiURL + HttpService.usersURL + '/' + userId,
+      JSON.stringify(user), HttpService.httpOptions);
+  }
+
+  // All services related to companies
+  getAllCompanies() {
+    return this.http.get<Company[]>(HttpService.apiURL + HttpService.companiesURL);
+  }
+  getCompanyById(companyId: string) {
+    return this.http.get<Company>(HttpService.apiURL + HttpService.companiesURL + '/' + companyId);
+  }
+
+  // All services related to companies
+  getSession() {
+    return this.http.get<User>(HttpService.apiURL + HttpService.loginURL);
+  }
+  login(username, password) {
+    return this.http.post<User>(HttpService.apiURL + HttpService.loginURL,
+      JSON.stringify({ username: username, password: password }), HttpService.httpOptions);
+  }
+  
+  //All services related to email
+  read(idUsuario) {
+     return this.http.get<Email[]>(HttpService.apiURL + HttpService.emailURL + '/read/' + idUsuario);
+  }
+}
\ No newline at end of file
diff --git a/src/app/shared/email.ts b/src/app/shared/email.ts
new file mode 100644
index 0000000..e0d6e61
--- /dev/null
+++ b/src/app/shared/email.ts
@@ -0,0 +1,17 @@
+export class Email{
+	sender: string;
+	receivers: [string];
+	content: string;
+	state: string;
+	createdAt: string;
+	acknowledgment: [string];
+	constructor(sender?:  string, receivers?: [string], content?: string, state?: string, 
+		createdAt?: string, acknowledgment?: [string]){
+		this.receivers = receivers;
+		this.sender = sender;
+		this.content = content;
+		this.state = state;
+		this.createdAt = createdAt;
+		this.acknowledgment = acknowledgment;
+	}
+}
\ No newline at end of file