Basic WebSocket implementaion

Downgrade to Socket.io 2.3.0

package-lock.json

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       "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.3.0.tgz",
       "integrity": "sha512-cEQQf24gET3rfhxZ2jJ5xzAOo/xhZwK+mOqtGRg5IowZsMgwvHwnf/mCRapAAkadhM26y+iydgwsXGObBB5ZdA==",
-      "dev": true,
       "requires": {
         "backo2": "1.0.2",
         "base64-arraybuffer": "0.1.5",
@@ -10891,20 +10870,17 @@
         "base64-arraybuffer": {
           "version": "0.1.5",
           "resolved": "https://registry.npmjs.org/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz",
-          "integrity": "sha1-c5JncZI7Whl0etZmqlzUv5xunOg=",
+          "integrity": "sha1-c5JncZI7Whl0etZmqlzUv5xunOg="
-          "dev": true
         },
         "component-emitter": {
           "version": "1.2.1",
           "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
-          "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY=",
+          "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
-          "dev": true
         },
         "debug": {
           "version": "4.1.1",
           "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
           "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
-          "dev": true,
           "requires": {
             "ms": "^2.1.1"
           }
@@ -10912,14 +10888,12 @@
         "isarray": {
           "version": "2.0.1",
           "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
-          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4=",
+          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
-          "dev": true
         },
         "socket.io-parser": {
           "version": "3.3.1",
           "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.3.1.tgz",
           "integrity": "sha512-1QLvVAe8dTz+mKmZ07Swxt+LAo4Y1ff50rlyoEx00TQmDFVQYPfcqGvIDJLGaBdhdNCecXtyKpD+EgKGcmmbuQ==",
-          "dev": true,
           "requires": {
             "component-emitter": "~1.3.0",
             "debug": "~3.1.0",
@@ -10929,14 +10903,12 @@
             "component-emitter": {
               "version": "1.3.0",
               "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.3.0.tgz",
-              "integrity": "sha512-Rd3se6QB+sO1TwqZjscQrurpEPIfO0/yYnSin6Q/rD3mOutHvUrCAhJub3r90uNb+SESBuE0QYoB90YdfatsRg==",
+              "integrity": "sha512-Rd3se6QB+sO1TwqZjscQrurpEPIfO0/yYnSin6Q/rD3mOutHvUrCAhJub3r90uNb+SESBuE0QYoB90YdfatsRg=="
-              "dev": true
             },
             "debug": {
               "version": "3.1.0",
               "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
               "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
-              "dev": true,
               "requires": {
                 "ms": "2.0.0"
               }
@@ -10944,8 +10916,7 @@
             "ms": {
               "version": "2.0.0",
               "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-              "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=",
+              "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
-              "dev": true
             }
           }
         }
@@ -10955,7 +10926,6 @@
       "version": "3.4.1",
       "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.4.1.tgz",
       "integrity": "sha512-11hMgzL+WCLWf1uFtHSNvliI++tcRUWdoeYuwIl+Axvwy9z2gQM+7nJyN3STj1tLj5JyIUH8/gpDGxzAlDdi0A==",
-      "dev": true,
       "requires": {
         "component-emitter": "1.2.1",
         "debug": "~4.1.0",
@@ -10965,14 +10935,12 @@
         "component-emitter": {
           "version": "1.2.1",
           "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
-          "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY=",
+          "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY="
-          "dev": true
         },
         "debug": {
           "version": "4.1.1",
           "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
           "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
-          "dev": true,
           "requires": {
             "ms": "^2.1.1"
           }
@@ -10980,8 +10948,7 @@
         "isarray": {
           "version": "2.0.1",
           "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
-          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4=",
+          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
-          "dev": true
         }
       }
     },
@@ -11740,8 +11707,7 @@
     "to-array": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/to-array/-/to-array-0.1.4.tgz",
-      "integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA=",
+      "integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA="
-      "dev": true
     },
     "to-arraybuffer": {
       "version": "1.0.1",
@@ -13407,8 +13373,7 @@
     "xmlhttprequest-ssl": {
       "version": "1.5.5",
       "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
-      "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=",
+      "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4="
-      "dev": true
     },
     "xtend": {
       "version": "4.0.2",
@@ -13504,8 +13469,7 @@
     "yeast": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
-      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
+      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk="
-      "dev": true
     },
     "yn": {
       "version": "3.1.1",

package.json

@@ -20,6 +20,7 @@
     "@angular/platform-browser-dynamic": "~11.0.5",
     "@angular/router": "~11.0.5",
     "angularx-qrcode": "^10.0.11",
+    "ngx-socket-io": "^3.2.0",
     "rxjs": "~6.6.0",
     "tslib": "^2.0.0",
     "zone.js": "~0.10.2"

src/app/app.component.css

@@ -1,26 +0,0 @@
-.bg {
-    position: fixed;
-    top: 0;
-    left: 0;
-    width: 100vw;
-    height: 100vh;
-    background-color: #F7A12F;
-    z-index: -999;
-}
-
-.content {
-    margin: 0 auto;
-    transform: translateY(20vh);
-    transform-origin: center;
-    min-width: 900px;
-    width: 50vw;
-    
-    /* Shadow */
-    box-shadow:
-        0 -0.5px 2.8px -9px rgba(0, 0, 0, 0.39)
-    ;
-}
-
-.content * {
-    width: 100%;
-}

src/app/app.component.html

@@ -1,5 +1 @@
-<div class="bg"></div>
+<router-outlet></router-outlet>
-<div class="content">
-    <app-header></app-header>
-    <app-payment></app-payment>
-</div>

src/app/app.module.ts

@@ -5,16 +5,31 @@ import { AppComponent } from './app.component';
 import { HeaderComponent } from './header/header.component';
 import { PaymentComponent } from './payment/payment.component';
 import { QRCodeModule } from 'angularx-qrcode';
+import { PayComponent } from './pay/pay.component';
+import { RouterModule } from '@angular/router';
+import { HelloComponent } from './hello/hello.component';
+import { SocketIoConfig, SocketIoModule } from 'ngx-socket-io';
+import { HttpClientModule } from '@angular/common/http';
+import { AppRoutingModule } from 'src/routes';
+import { NotFoundComponent } from './not-found/not-found.component';
+
+const config: SocketIoConfig = { url: 'http://localhost:2009', options: {} };
 
 @NgModule({
   declarations: [
     AppComponent,
     HeaderComponent,
-    PaymentComponent
+    PaymentComponent,
+    PayComponent,
+    HelloComponent,
+    NotFoundComponent
   ],
   imports: [
     BrowserModule,
-    QRCodeModule
+    QRCodeModule,
+    HttpClientModule,
+    AppRoutingModule,
+    SocketIoModule.forRoot(config)
   ],
   providers: [],
   bootstrap: [AppComponent]

src/app/backend.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { BackendService } from './backend.service';
+
+describe('BackendService', () => {
+  let service: BackendService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(BackendService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

src/app/backend.service.ts

@@ -0,0 +1,94 @@
+import { HttpClient } from '@angular/common/http';
+import { Injectable } from '@angular/core';
+import { Socket } from 'ngx-socket-io';
+
+/*
+ * The following interfaces are copied from the backend.
+ * 
+ * Checkout src/helper/types.ts and src/models/invoice/invoice.interface.ts
+ * (in the backend repository) for more information.
+ */
+export enum CryptoUnits {
+  BITCOIN = 'BTC',
+  BITCOINCASH = 'BCH',
+  ETHEREUM = 'ETH',
+  LITECOIN = 'LTC',
+  DOGECOIN = 'DOGE',
+  MONERO = 'XMR'
+}
+
+export interface ICart {
+  price: number;
+  name: string;
+  image: string;
+  quantity: number;
+}
+
+export interface IPaymentMethod {
+  method: any;
+  amount: number
+}
+
+export enum PaymentStatus {
+  PENDING = 0,
+  PARTIALLY = 1,
+  UNCONFIRMED = 2,
+  DONE = 3,
+  CANCELLED = 4
+}
+
+export interface IInvoice {
+  selector: string;
+  paymentMethods: IPaymentMethod[];
+  receiveAddress: string;
+  paidWith?: CryptoUnits;
+  paid?: number;
+  transcationHashes?: string[];
+  cart?: ICart[];
+  totalPrice?: number;
+  currency: string;
+  dueBy: number;
+  status?: PaymentStatus;
+  email?: string;
+  successUrl: string;
+  cancelUrl: string;
+  createdAt?: number;
+}
+
+@Injectable({
+  providedIn: 'root'
+})
+export class BackendService {
+
+  SERVER_URL = 'http://localhost:2009';
+
+  constructor(
+    private socket: Socket,
+    private http: HttpClient
+  ) {
+    this.socket.on('status', (data: any) => {
+      console.log('Status has been updated to: ', data);
+    });
+    this.socket.on('subscribe', (success: boolean) => {
+      if (success) { console.log('We\'re getting the progress of this invoice!'); }
+      else { console.log('Subscription failed'); }
+    });
+  }
+
+  subscribeTo(selector: string) {
+    this.socket.emit('subscribe', { selector });
+  }
+
+  getInvoice(selector: string): Promise<IInvoice> {
+    return new Promise(async (resolve, reject) => {
+      this.http.get(this.SERVER_URL + '/invoice/' + selector, {
+        observe: 'body',
+        responseType: 'json'
+      }).toPromise().then((invoice) => {
+        resolve(invoice as IInvoice);
+      }).catch(err => {
+        reject(err);
+      });
+    });
+  }
+}

src/app/hello/hello.component.html

@@ -0,0 +1 @@
+<p>hello works!</p>

src/app/hello/hello.component.spec.ts

@@ -0,0 +1,25 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { HelloComponent } from './hello.component';
+
+describe('HelloComponent', () => {
+  let component: HelloComponent;
+  let fixture: ComponentFixture<HelloComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ HelloComponent ]
+    })
+    .compileComponents();
+  });
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(HelloComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/hello/hello.component.ts

@@ -0,0 +1,15 @@
+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-hello',
+  templateUrl: './hello.component.html',
+  styleUrls: ['./hello.component.css']
+})
+export class HelloComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+}

src/app/not-found/not-found.component.html

@@ -0,0 +1 @@
+<p>not-found works!</p>

src/app/not-found/not-found.component.spec.ts

@@ -0,0 +1,25 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { NotFoundComponent } from './not-found.component';
+
+describe('NotFoundComponent', () => {
+  let component: NotFoundComponent;
+  let fixture: ComponentFixture<NotFoundComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ NotFoundComponent ]
+    })
+    .compileComponents();
+  });
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(NotFoundComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/not-found/not-found.component.ts

@@ -0,0 +1,15 @@
+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-not-found',
+  templateUrl: './not-found.component.html',
+  styleUrls: ['./not-found.component.css']
+})
+export class NotFoundComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+}

src/app/pay/pay.component.css

@@ -0,0 +1,26 @@
+.bg {
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100vw;
+    height: 100vh;
+    background-color: #F7A12F;
+    z-index: -999;
+}
+
+.content {
+    margin: 0 auto;
+    transform: translateY(20vh);
+    transform-origin: center;
+    min-width: 900px;
+    width: 50vw;
+    
+    /* Shadow */
+    box-shadow:
+        0 -0.5px 2.8px -9px rgba(0, 0, 0, 0.39)
+    ;
+}
+
+.content * {
+    width: 100%;
+}

src/app/pay/pay.component.html

@@ -0,0 +1,5 @@
+<div class="bg"></div>
+<div class="content">
+    <app-header></app-header>
+    <app-payment></app-payment>
+</div>

src/app/pay/pay.component.spec.ts

@@ -0,0 +1,25 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { PayComponent } from './pay.component';
+
+describe('PayComponent', () => {
+  let component: PayComponent;
+  let fixture: ComponentFixture<PayComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ PayComponent ]
+    })
+    .compileComponents();
+  });
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(PayComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/pay/pay.component.ts

@@ -0,0 +1,15 @@
+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-pay',
+  templateUrl: './pay.component.html',
+  styleUrls: ['./pay.component.css']
+})
+export class PayComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit(): void {
+  }
+
+}

src/app/payment/payment.component.html

@@ -3,7 +3,7 @@
         <div class="qr">
             <img src="assets/Bitcoin.svg">
             <qrcode
-                [qrdata]="'bitcoin:1QFrbboisCYgeBdowGAuCTK3r2YnZuApYd'"
+                [qrdata]="'bitcoin:' + invoice!!.receiveAddress"
                 [width]="256"
                 [errorCorrectionLevel]="'M'"
                 [elementType]="'svg'"
@@ -12,16 +12,16 @@
         </div>
     </div>
 
-    <div class="data">
+    <div class="data" *ngIf="ready">
         <!-- Payment data -->
         <span id="target">Send to
-            <h3>1QFrbboisCYgeBdowGAuCTK3r2YnZuApYd</h3>
+            <h3>{{ invoice!!.receiveAddress }}</h3>
         </span>
         <span id="amount">Amount
-            <h3>0.00133700 BTC</h3>
+            <h3>{{ getAmount() }} BTC</h3>
         </span>
         <span id="status">Status
-            <h3>Pending</h3>
+            <h3>{{ getStatus() }}</h3>
         </span>
     </div>
 </div>

src/app/payment/payment.component.ts

@@ -1,4 +1,6 @@
 import { Component, OnInit } from '@angular/core';
+import { ActivatedRoute } from '@angular/router';
+import { BackendService, IInvoice, CryptoUnits, PaymentStatus } from '../backend.service';
 
 @Component({
   selector: 'app-payment',
@@ -7,9 +9,50 @@ import { Component, OnInit } from '@angular/core';
 })
 export class PaymentComponent implements OnInit {
 
-  constructor() { }
+  paymentSelector = '';
+  choosenPaymentMethod = CryptoUnits.BITCOIN;
+  ready = false;
+  invoice: IInvoice | null = null;
+
+  constructor(
+    private backend: BackendService,
+    private route: ActivatedRoute
+  ) { }
 
   ngOnInit(): void {
+    this.route.params.subscribe(params => {
+      this.paymentSelector = params.id;
+      this.backend.subscribeTo(this.paymentSelector);
+      this.get();
+    });
+  }
+
+  async get() {
+    this.invoice = await this.backend.getInvoice(this.paymentSelector);
+    this.ready = true;
+  }
+
+  getAmount() {
+    return this.invoice?.paymentMethods.find(item => {
+      return item.method === CryptoUnits.BITCOIN;
+    })?.amount.toFixed(8);
+  }
+
+  getStatus() {
+    switch (this.invoice?.status) {
+      case PaymentStatus.PENDING:
+        return 'Pending';
+      case PaymentStatus.PARTIALLY:
+        return 'Partly';
+      case PaymentStatus.UNCONFIRMED:
+        return 'Unconfirmed';
+      case PaymentStatus.DONE:
+        return 'Paid';
+      case PaymentStatus.CANCELLED:
+        return 'Cancelled';
+      default:
+        return 'Unknown';
+    }
   }
 
 }

src/routes.ts

@@ -0,0 +1,17 @@
+import { NgModule } from "@angular/core";
+import { RouterModule, Routes } from "@angular/router";
+import { HelloComponent } from "./app/hello/hello.component";
+import { NotFoundComponent } from "./app/not-found/not-found.component";
+import { PayComponent } from "./app/pay/pay.component";
+
+const routes: Routes = [
+    { path: 'pay/:id', component: PayComponent, data: { title: 'Payment' } },
+    { path: '', component: HelloComponent },
+    { path: '**', component: NotFoundComponent }
+]
+
+@NgModule({
+    imports: [RouterModule.forRoot(routes)],
+    exports: [RouterModule]
+  })
+  export class AppRoutingModule {}