(F) Test signalR on front-end

Clinics.Frontend/package-lock.json

@@ -17,6 +17,7 @@
         "@angular/platform-browser-dynamic": "^18.1.0",
         "@angular/router": "^18.1.0",
         "@fortawesome/fontawesome-free": "^6.6.0",
+        "@microsoft/signalr": "^8.0.7",
         "@ng-bootstrap/ng-bootstrap": "^17.0.0",
         "@popperjs/core": "^2.11.8",
         "bootstrap": "^5.3.2",
@@ -3764,6 +3765,40 @@
         "win32"
       ]
     },
+    "node_modules/@microsoft/signalr": {
+      "version": "8.0.7",
+      "resolved": "https://registry.npmjs.org/@microsoft/signalr/-/signalr-8.0.7.tgz",
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+      "license": "MIT",
+      "dependencies": {
+        "abort-controller": "^3.0.0",
+        "eventsource": "^2.0.2",
+        "fetch-cookie": "^2.0.3",
+        "node-fetch": "^2.6.7",
+        "ws": "^7.4.5"
+      }
+    },
+    "node_modules/@microsoft/signalr/node_modules/ws": {
+      "version": "7.5.10",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.10.tgz",
+      "integrity": "sha512-+dbF1tHwZpXcbOJdVOkzLDxZP1ailvSxM6ZweXTegylPny803bFhA+vqBYw4s31NSAk4S2Qz+AKXK9a4wkdjcQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=8.3.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": "^5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@msgpackr-extract/msgpackr-extract-darwin-arm64": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/@msgpackr-extract/msgpackr-extract-darwin-arm64/-/msgpackr-extract-darwin-arm64-3.0.3.tgz",
@@ -5115,6 +5150,18 @@
         "node": "^14.17.0 || ^16.13.0 || >=18.0.0"
       }
     },
+    "node_modules/abort-controller": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/abort-controller/-/abort-controller-3.0.0.tgz",
+      "integrity": "sha512-h8lQ8tacZYnR3vNQTgibj+tODHI5/+l06Au2Pcriv/Gmet0eaj4TwWH41sO9wnHDiQsEj19q0drzdWdeAHtweg==",
+      "license": "MIT",
+      "dependencies": {
+        "event-target-shim": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=6.5"
+      }
+    },
     "node_modules/accepts": {
       "version": "1.3.8",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
@@ -6942,7 +6989,6 @@
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-      "dev": true,
       "license": "MIT",
       "optional": true,
       "dependencies": {
@@ -6953,7 +6999,6 @@
       "version": "0.6.3",
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-      "dev": true,
       "license": "MIT",
       "optional": true,
       "dependencies": {
@@ -7263,6 +7308,15 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/event-target-shim": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/event-target-shim/-/event-target-shim-5.0.1.tgz",
+      "integrity": "sha512-i/2XbnSz/uxRCU6+NdVJgKWDTM427+MqYbkQzD321DuCQJUqOuJKIA0IM2+W2xtYHdKOmZ4dR6fExsd4SXL+WQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/eventemitter3": {
       "version": "4.0.7",
       "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.7.tgz",
@@ -7280,6 +7334,15 @@
         "node": ">=0.8.x"
       }
     },
+    "node_modules/eventsource": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-2.0.2.tgz",
+      "integrity": "sha512-IzUmBGPR3+oUG9dUeXynyNmf91/3zUSJg1lCktzKw47OXuhco54U3r9B7O4XX+Rb1Itm9OZ2b0RkTs10bICOxA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12.0.0"
+      }
+    },
     "node_modules/execa": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/execa/-/execa-5.1.1.tgz",
@@ -7507,6 +7570,16 @@
         "node": ">=0.8.0"
       }
     },
+    "node_modules/fetch-cookie": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/fetch-cookie/-/fetch-cookie-2.2.0.tgz",
+      "integrity": "sha512-h9AgfjURuCgA2+2ISl8GbavpUdR+WGAM2McW/ovn4tVccegp8ZqCKWSBR8uRdM8dDNlx5WdKRWxBYUwteLDCNQ==",
+      "license": "Unlicense",
+      "dependencies": {
+        "set-cookie-parser": "^2.4.8",
+        "tough-cookie": "^4.0.0"
+      }
+    },
     "node_modules/fill-range": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
@@ -10413,6 +10486,26 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/node-fetch": {
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.7.0.tgz",
+      "integrity": "sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==",
+      "license": "MIT",
+      "dependencies": {
+        "whatwg-url": "^5.0.0"
+      },
+      "engines": {
+        "node": "4.x || >=6.0.0"
+      },
+      "peerDependencies": {
+        "encoding": "^0.1.0"
+      },
+      "peerDependenciesMeta": {
+        "encoding": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/node-forge": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/node-forge/-/node-forge-1.3.1.tgz",
@@ -11571,6 +11664,12 @@
       "license": "MIT",
       "optional": true
     },
+    "node_modules/psl": {
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/psl/-/psl-1.9.0.tgz",
+      "integrity": "sha512-E/ZsdU4HLs/68gYzgGTkMicWTLPdAftJLfJFlLUAAKZGkStNU72sZjT66SnMDVOfOWY/YAoiD7Jxa9iHvngcag==",
+      "license": "MIT"
+    },
     "node_modules/punycode": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
@@ -11604,6 +11703,12 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/querystringify": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/querystringify/-/querystringify-2.2.0.tgz",
+      "integrity": "sha512-FIqgj2EUvTa7R50u0rGsyTftzjYmv/a3hO345bZNrqabNqjtgiDMgmo4mkUjd+nzU5oF3dClKqFIPUKybUyqoQ==",
+      "license": "MIT"
+    },
     "node_modules/queue-microtask": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.3.tgz",
@@ -11812,7 +11917,6 @@
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       "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz",
       "integrity": "sha512-KigOCHcocU3XODJxsu8i/j8T9tzT4adHiecwORRQ0ZZFcp7ahwXuRU1m+yuO90C5ZUyGeGfocHDI14M3L3yDAQ==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/resolve": {
@@ -12052,7 +12156,7 @@
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       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
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-      "dev": true,
+      "devOptional": true,
       "license": "MIT"
     },
     "node_modules/sass": {
@@ -12367,6 +12471,12 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/set-cookie-parser": {
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/set-cookie-parser/-/set-cookie-parser-2.7.0.tgz",
+      "integrity": "sha512-lXLOiqpkUumhRdFF3k1osNXCy9akgx/dyPZ5p8qAg9seJzXr5ZrlqZuWIMuY6ejOsVLE6flJ5/h3lsn57fQ/PQ==",
+      "license": "MIT"
+    },
     "node_modules/set-function-length": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/set-function-length/-/set-function-length-1.2.2.tgz",
@@ -13232,6 +13342,45 @@
         "node": ">=0.6"
       }
     },
+    "node_modules/tough-cookie": {
+      "version": "4.1.4",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-4.1.4.tgz",
+      "integrity": "sha512-Loo5UUvLD9ScZ6jh8beX1T6sO1w2/MpCRpEP7V280GKMVUQ0Jzar2U3UJPsrdbziLEMMhu3Ujnq//rhiFuIeag==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "psl": "^1.1.33",
+        "punycode": "^2.1.1",
+        "universalify": "^0.2.0",
+        "url-parse": "^1.5.3"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/tough-cookie/node_modules/punycode": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz",
+      "integrity": "sha512-vYt7UD1U9Wg6138shLtLOvdAu+8DsC/ilFtEVHcH+wydcSpNE20AfSOduf6MkRFahL5FY7X1oU7nKVZFtfq8Fg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/tough-cookie/node_modules/universalify": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.2.0.tgz",
+      "integrity": "sha512-CJ1QgKmNg3CwvAv/kOFmtnEN05f0D/cn9QntgNOQlQF9dgvVTHj3t+8JPdjqawCHk7V/KA+fbUqzZ9XWhcqPUg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 4.0.0"
+      }
+    },
+    "node_modules/tr46": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-0.0.3.tgz",
+      "integrity": "sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==",
+      "license": "MIT"
+    },
     "node_modules/tree-dump": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/tree-dump/-/tree-dump-1.0.2.tgz",
@@ -13521,6 +13670,16 @@
         "node": ">=6"
       }
     },
+    "node_modules/url-parse": {
+      "version": "1.5.10",
+      "resolved": "https://registry.npmjs.org/url-parse/-/url-parse-1.5.10.tgz",
+      "integrity": "sha512-WypcfiRhfeUP9vvF0j6rw0J3hrWrw6iZv3+22h6iRMJ/8z1Tj6XfLP4DsUix5MhMPnXpiHDoKyoZ/bdCkwBCiQ==",
+      "license": "MIT",
+      "dependencies": {
+        "querystringify": "^2.1.1",
+        "requires-port": "^1.0.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -13686,6 +13845,12 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/webidl-conversions": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz",
+      "integrity": "sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==",
+      "license": "BSD-2-Clause"
+    },
     "node_modules/webpack": {
       "version": "5.92.1",
       "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.92.1.tgz",
@@ -14044,6 +14209,16 @@
         "node": ">=0.8.0"
       }
     },
+    "node_modules/whatwg-url": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-5.0.0.tgz",
+      "integrity": "sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==",
+      "license": "MIT",
+      "dependencies": {
+        "tr46": "~0.0.3",
+        "webidl-conversions": "^3.0.0"
+      }
+    },
     "node_modules/which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",

Clinics.Frontend/package.json

@@ -19,6 +19,7 @@
     "@angular/platform-browser-dynamic": "^18.1.0",
     "@angular/router": "^18.1.0",
     "@fortawesome/fontawesome-free": "^6.6.0",
+    "@microsoft/signalr": "^8.0.7",
     "@ng-bootstrap/ng-bootstrap": "^17.0.0",
     "@popperjs/core": "^2.11.8",
     "bootstrap": "^5.3.2",

Clinics.Frontend/src/app/app-routing.module.ts

@@ -5,6 +5,7 @@ import { RoleGuard } from './services/authentication/guards/role-guard';
 import { Roles } from './classes/Authentication/roles';
 import { ForbiddenComponent } from './components/errors/forbidden/forbidden.component';
 import { NotFoundComponent } from './components/errors/not-found/not-found.component';
+import { TestSignalRComponent } from './test-signal-r/test-signal-r.component';
 
 const routes: Routes = [
   {
@@ -25,6 +26,16 @@ const routes: Routes = [
     canActivate: [RoleGuard],
     data: { role: Roles.NotRegistered }
   },
+  
+  // #region Testing SignalR
+  {
+    path: 'testing',
+    component: TestSignalRComponent,
+    canActivate: [RoleGuard],
+    data: { role: Roles.NotRegistered }
+  },
+  // #endregion
+  
   // Everything else
   {
     path: '**',

Clinics.Frontend/src/app/app.module.ts

@@ -18,6 +18,8 @@ import { AuthenticationService } from './services/authentication/authentication.
 import { AuthenticationInterceptor } from './services/authentication/interceptor/authentication.interceptor';
 import { ForbiddenComponent } from './components/errors/forbidden/forbidden.component';
 import { NotFoundComponent } from './components/errors/not-found/not-found.component';
+import { TestSignalRComponent } from './test-signal-r/test-signal-r.component';
+import { SignalRService } from './notifications/signal-r.service';
 
 
 @NgModule({
@@ -39,6 +41,7 @@ import { NotFoundComponent } from './components/errors/not-found/not-found.compo
   providers: [
     AuthenticationService,
     { provide: HTTP_INTERCEPTORS, useClass: AuthenticationInterceptor, multi: true},
+    SignalRService
   ],
 
   // components and directives that belong to this module
@@ -52,7 +55,8 @@ import { NotFoundComponent } from './components/errors/not-found/not-found.compo
     HomeComponent,
     LoginFormComponent,
     ForbiddenComponent,
-    NotFoundComponent
+    NotFoundComponent,
+    TestSignalRComponent
   ],
   
   // identifies the root component that Angular should

Clinics.Frontend/src/app/notifications/signal-r.service.ts

+import { Injectable } from '@angular/core';
+import { HubConnectionBuilder } from '@microsoft/signalr';
+import * as config from '../../../config'
+
+@Injectable({
+  providedIn: 'root'
+})
+export class SignalRService {
+
+  constructor() { }
+
+  private readonly NOTIFICATIONS_ENDPOINT: string = `${config.apiUrl}/Notifications`
+  hubConnection: signalR.HubConnection;
+
+  startConnection(): void {
+    this.hubConnection = new HubConnectionBuilder()
+      .withUrl(this.NOTIFICATIONS_ENDPOINT)
+      .build();
+
+    this.hubConnection
+      .start()
+      .then(() => {
+        console.log('Connected to signalR!')
+      })
+      .catch(err => console.error('Error while starting connection: ' + err))
+  }
+
+  endConnection(): void {
+    if (this.hubConnection) {
+      this.hubConnection
+        .stop()
+        .then(() => {
+          console.log('disonnected from signalR!');
+        })
+        .catch(err => console.error('Error while stopping connection: ' + err));
+    } else {
+      console.log('No active connection to stop.');
+    }
+  
+  }
+}
\ No newline at end of file

Clinics.Frontend/src/app/test-signal-r/test-signal-r.component.html

+<div>
+    <div class="text-center">
+        <h2>Notifications:</h2>
+        <h3>{{notification}}</h3>
+        <button (click)="onClick()" class="btn btn-outline-danger">Stop</button>
+
+    </div>
+</div>
\ No newline at end of file

Clinics.Frontend/src/app/test-signal-r/test-signal-r.component.ts

+import { Component, OnInit } from '@angular/core';
+import { SignalRService } from '../notifications/signal-r.service';
+
+@Component({
+  selector: 'app-test-signal-r',
+  templateUrl: './test-signal-r.component.html',
+  styleUrls: ['./test-signal-r.component.css']
+})
+export class TestSignalRComponent implements OnInit {
+
+  notification: string = '';
+
+  constructor(private signalR: SignalRService){}
+
+  ngOnInit(): void {
+    this.signalR.startConnection();
+    this.signalR.hubConnection.on('ReceiveNotification', (message) => {
+      this.notification = message;
+    })
+  }
+
+  onClick(): void {
+    this.signalR.endConnection();
+  }
+
+}
\ No newline at end of file