Broadcast transaction form

fixes #878

backend/src/index.ts

@@ -69,7 +69,8 @@ class Server {
         next();
       })
       .use(express.urlencoded({ extended: true }))
-      .use(express.json());
+      .use(express.text())
+    ;
 
     this.server = http.createServer(this.app);
     this.wss = new WebSocket.Server({ server: this.server });

backend/src/routes.ts

@@ -768,8 +768,13 @@ class Routes {
   public async $postTransaction(req: Request, res: Response) {
     res.setHeader('content-type', 'text/plain');
     try {
-      const rawtx = Object.keys(req.body)[0];
-      const txIdResult = await bitcoinApi.$sendRawTransaction(rawtx);
+      let rawTx;
+      if (typeof req.body === 'object') {
+        rawTx = Object.keys(req.body)[0];
+      } else {
+        rawTx = req.body;
+      }
+      const txIdResult = await bitcoinApi.$sendRawTransaction(rawTx);
       res.send(txIdResult);
     } catch (e: any) {
       res.status(400).send(e.message && e.code ? 'sendrawtransaction RPC error: ' + JSON.stringify({ code: e.code, message: e.message })

frontend/src/app/app-routing.module.ts

@@ -21,12 +21,17 @@ import { TrademarkPolicyComponent } from './components/trademark-policy/trademar
 import { BisqMasterPageComponent } from './components/bisq-master-page/bisq-master-page.component';
 import { SponsorComponent } from './components/sponsor/sponsor.component';
 import { LiquidMasterPageComponent } from './components/liquid-master-page/liquid-master-page.component';
+import { PushTransactionComponent } from './components/push-transaction/push-transaction.component';
 
 let routes: Routes = [
   {
     path: '',
     component: MasterPageComponent,
     children: [
+      {
+        path: 'tx/push',
+        component: PushTransactionComponent,
+      },
       {
         path: '',
         component: StartComponent,
@@ -95,6 +100,10 @@ let routes: Routes = [
         path: '',
         component: MasterPageComponent,
         children: [
+          {
+            path: 'tx/push',
+            component: PushTransactionComponent,
+          },
           {
             path: '',
             component: StartComponent,
@@ -164,6 +173,10 @@ let routes: Routes = [
         path: '',
         component: MasterPageComponent,
         children: [
+          {
+            path: 'tx/push',
+            component: PushTransactionComponent,
+          },
           {
             path: '',
             component: StartComponent,
@@ -226,6 +239,10 @@ let routes: Routes = [
         path: '',
         component: MasterPageComponent,
         children: [
+          {
+            path: 'tx/push',
+            component: PushTransactionComponent,
+          },
           {
             path: '',
             component: StartComponent,
@@ -325,6 +342,10 @@ if (browserWindowEnv && browserWindowEnv.BASE_MODULE === 'liquid') {
             path: '',
             component: DashboardComponent
           },
+          {
+            path: 'tx/push',
+            component: PushTransactionComponent,
+          },
           {
             path: 'tx/:id',
             component: TransactionComponent

frontend/src/app/app.module.ts

@@ -57,6 +57,7 @@ import { TrademarkPolicyComponent } from './components/trademark-policy/trademar
 import { StorageService } from './services/storage.service';
 import { HttpCacheInterceptor } from './services/http-cache.interceptor';
 import { SponsorComponent } from './components/sponsor/sponsor.component';
+import { PushTransactionComponent } from './components/push-transaction/push-transaction.component';
 
 @NgModule({
   declarations: [
@@ -98,6 +99,7 @@ import { SponsorComponent } from './components/sponsor/sponsor.component';
     PrivacyPolicyComponent,
     TrademarkPolicyComponent,
     SponsorComponent,
+    PushTransactionComponent,
   ],
   imports: [
     BrowserModule.withServerTransition({ appId: 'serverApp' }),

frontend/src/app/bisq/bisq.routing.module.ts

@@ -12,6 +12,7 @@ import { BisqDashboardComponent } from './bisq-dashboard/bisq-dashboard.componen
 import { BisqMarketComponent } from './bisq-market/bisq-market.component';
 import { BisqMainDashboardComponent } from './bisq-main-dashboard/bisq-main-dashboard.component';
 import { TermsOfServiceComponent } from '../components/terms-of-service/terms-of-service.component';
+import { PushTransactionComponent } from '../components/push-transaction/push-transaction.component';
 
 const routes: Routes = [
     {
@@ -30,6 +31,10 @@ const routes: Routes = [
       path: 'market/:pair',
       component: BisqMarketComponent,
     },
+    {
+      path: 'tx/push',
+      component: PushTransactionComponent,
+    },
     {
       path: 'tx/:id',
       component: BisqTransactionComponent

frontend/src/app/components/push-transaction/push-transaction.component.html

@@ -0,0 +1,12 @@
+<div class="container-xl">
+  <h1 i18n="shared.broadcast-transaction|Broadcast Transaction">Broadcast Transaction</h1>
+
+  <form [formGroup]="pushTxForm" (submit)="pushTxForm.valid && postTx()" novalidate>
+    <div class="mb-3">
+      <textarea formControlName="txHash" class="form-control" rows="5" i18n-placeholder="transaction.hex" placeholder="Transaction Hex"></textarea>
+    </div>
+    <button [disabled]="isLoading" type="submit" class="btn btn-primary mr-2" i18n="shared.broadcast-transaction|Broadcast Transaction">Broadcast Transaction</button>
+    <p class="red-color d-inline">{{ error }}</p> <a *ngIf="txId" [routerLink]="['/tx/' | relativeUrl, txId]">{{ txId }}</a>
+  </form>
+
+</div>

frontend/src/app/components/push-transaction/push-transaction.component.ts

@@ -0,0 +1,48 @@
+import { Component, OnInit } from '@angular/core';
+import { FormBuilder, FormGroup, Validators } from '@angular/forms';
+import { ApiService } from 'src/app/services/api.service';
+
+@Component({
+  selector: 'app-push-transaction',
+  templateUrl: './push-transaction.component.html',
+  styleUrls: ['./push-transaction.component.scss']
+})
+export class PushTransactionComponent implements OnInit {
+  pushTxForm: FormGroup;
+  error: string = '';
+  txId: string = '';
+  isLoading = false;
+
+  constructor(
+    private formBuilder: FormBuilder,
+    private apiService: ApiService,
+  ) { }
+
+  ngOnInit(): void {
+    this.pushTxForm = this.formBuilder.group({
+      txHash: ['', Validators.required],
+    });
+  }
+
+  postTx() {
+    this.isLoading = true;
+    this.error = '';
+    this.txId = '';
+    this.apiService.postTransaction$(this.pushTxForm.get('txHash').value)
+      .subscribe((result) => {
+        this.isLoading = false;
+        this.txId = result;
+        this.pushTxForm.reset();
+      },
+      (error) => {
+        if (typeof error.error === 'string') {
+          const matchText = error.error.match('"message":"(.*?)"');
+          this.error = matchText && matchText[1] || error.error;
+        } else if (error.message) {
+          this.error = error.message;
+        }
+        this.isLoading = false;
+      });
+  }
+
+}

frontend/src/app/dashboard/dashboard.component.html

@@ -148,6 +148,8 @@
     <a [routerLink]="['/terms-of-service']" i18n="shared.terms-of-service|Terms of Service">Terms of Service</a>
     |
     <a [routerLink]="['/privacy-policy']" i18n="shared.privacy-policy|Privacy Policy">Privacy Policy</a>
+    |
+    <a [routerLink]="['/tx/push' | relativeUrl]" i18n="shared.broadcast-transaction|Broadcast Transaction">Broadcast Transaction</a>
   </div>
 
 </div>

frontend/src/app/services/api.service.ts

@@ -1,5 +1,5 @@
 import { Injectable } from '@angular/core';
-import { HttpClient, HttpParams } from '@angular/common/http';
+import { HttpClient, HttpHeaders, HttpParams } from '@angular/common/http';
 import { CpfpInfo, OptimizedMempoolStats, DifficultyAdjustment, AddressInformation, LiquidPegs } from '../interfaces/node-api.interface';
 import { Observable } from 'rxjs';
 import { StateService } from './state.service';
@@ -104,4 +104,8 @@ export class ApiService {
   listLiquidPegsMonth$(): Observable<LiquidPegs[]> {
     return this.httpClient.get<LiquidPegs[]>(this.apiBaseUrl + this.apiBasePath + '/api/v1/liquid/pegs/month');
   }
+
+  postTransaction$(hexPayload: string): Observable<any> {
+    return this.httpClient.post<any>(this.apiBaseUrl + this.apiBasePath + '/api/tx', hexPayload, { responseType: 'text' as 'json'});
+  }
 }