BAEL-797 Adding login logic and a get principal endpoint to serve as our login method

spring-cloud/spring-cloud-bootstrap/gateway/src/main/angular/ui/src/app/app.component.ts

@@ -1,18 +1,33 @@
-import {Component} from "@angular/core";
+import {Component, OnInit} from "@angular/core";
 import {NgForm} from "@angular/forms";
+import {RequestOptions, Http, Response, Headers} from "@angular/http";
+import "rxjs/Rx";
 
 @Component({
   selector: 'app-root',
   templateUrl: './app.component.html',
   styleUrls: ['./app.component.css']
 })
-export class AppComponent {
+export class AppComponent implements OnInit{
   credentials = {
     username: '',
     password: ''
   };
 
+  constructor(private http: Http){}
+
+  ngOnInit(): void {
+
+  }
+
   onLogin(form: NgForm) {
-    console.log(form);
+    let headers = new Headers({'Content-Type': 'application/json'});
+    headers.append('Authorization','Basic ' + btoa(form.value.username + ':' + form.value.password));
+    let options = new RequestOptions({headers: headers});
+    this.http.get("/me", options)
+      .map((response: Response) => response.json())
+      .subscribe((data: any) => {
+        console.log(data);
+      });
   }
 }

spring-cloud/spring-cloud-bootstrap/gateway/src/main/angular/ui/src/app/app.module.ts

@@ -1,9 +1,10 @@
 import {BrowserModule} from "@angular/platform-browser";
 import {NgModule} from "@angular/core";
 import {FormsModule} from "@angular/forms";
-import {HttpModule} from "@angular/http";
+import {HttpModule, RequestOptions} from "@angular/http";
 import {AppComponent} from "./app.component";
 import {NgbModule} from "@ng-bootstrap/ng-bootstrap";
+import {DefaultRequestOptions} from "./default-request-options";
 
 @NgModule({
   declarations: [
@@ -15,7 +16,7 @@ import {NgbModule} from "@ng-bootstrap/ng-bootstrap";
     HttpModule,
     NgbModule.forRoot()
   ],
-  providers: [],
+  providers: [{provide: RequestOptions, useClass: DefaultRequestOptions}],
   bootstrap: [AppComponent]
 })
 export class AppModule { }

spring-cloud/spring-cloud-bootstrap/gateway/src/main/angular/ui/src/app/default-request-options.ts

@@ -0,0 +1,11 @@
+import {Injectable} from "@angular/core";
+import {BaseRequestOptions, Headers} from "@angular/http";
+/**
+ * Created by tschi on 4/16/2017.
+ */
+@Injectable()
+export class DefaultRequestOptions extends BaseRequestOptions {
+  headers = new Headers({
+    'X-Requested-With':'XMLHttpRequest',
+  });
+}

spring-cloud/spring-cloud-bootstrap/gateway/src/main/java/com/baeldung/spring/cloud/bootstrap/gateway/AuthenticationController.java

@@ -0,0 +1,14 @@
+package com.baeldung.spring.cloud.bootstrap.gateway;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.security.Principal;
+
+@RestController
+public class AuthenticationController {
+    @GetMapping("/me")
+    public Principal getMyUser(Principal principal) {
+        return principal;
+    }
+}