Retrieve acceleration request time and first seen time

backend/src/api/bitcoin/bitcoin.routes.ts

@@ -162,6 +162,7 @@ class BitcoinRoutes {
           adjustedVsize: tx.adjustedVsize,
           acceleration: tx.acceleration,
           acceleratedBy: tx.acceleratedBy || undefined,
+          acceleratedAt: tx.acceleratedAt || undefined,
         });
         return;
       }

backend/src/api/mempool-blocks.ts

@@ -449,12 +449,14 @@ class MempoolBlocks {
             }
             mempoolTx.acceleration = true;
             mempoolTx.acceleratedBy = isAcceleratedBy[txid] || acceleration?.pools;
+            mempoolTx.acceleratedAt = acceleration?.added;
             for (const ancestor of mempoolTx.ancestors || []) {
               if (!mempool[ancestor.txid].acceleration) {
                 mempool[ancestor.txid].cpfpDirty = true;
               }
               mempool[ancestor.txid].acceleration = true;
               mempool[ancestor.txid].acceleratedBy = mempoolTx.acceleratedBy;
+              mempool[ancestor.txid].acceleratedAt = mempoolTx.acceleratedAt;
               isAcceleratedBy[ancestor.txid] = mempoolTx.acceleratedBy;
             }
           } else {

backend/src/api/websocket-handler.ts

@@ -822,6 +822,7 @@ class WebsocketHandler {
               ...mempoolTx.position,
               accelerated: mempoolTx.acceleration || undefined,
               acceleratedBy: mempoolTx.acceleratedBy || undefined,
+              acceleratedAt: mempoolTx.acceleratedAt || undefined,
             },
             accelerationPositions: memPool.getAccelerationPositions(mempoolTx.txid),
           };
@@ -862,6 +863,7 @@ class WebsocketHandler {
               ...mempoolTx.position,
               accelerated: mempoolTx.acceleration || undefined,
               acceleratedBy: mempoolTx.acceleratedBy || undefined,
+              acceleratedAt: mempoolTx.acceleratedAt || undefined,
             };
             if (!mempoolTx.cpfpChecked) {
               calculateCpfp(mempoolTx, newMempool);
@@ -1139,6 +1141,7 @@ class WebsocketHandler {
                 ...mempoolTx.position,
                 accelerated: mempoolTx.acceleration || undefined,
                 acceleratedBy: mempoolTx.acceleratedBy || undefined,
+                acceleratedAt: mempoolTx.acceleratedAt || undefined,
               },
               accelerationPositions: memPool.getAccelerationPositions(mempoolTx.txid),
             });
@@ -1160,6 +1163,7 @@ class WebsocketHandler {
                 },
                 accelerated: mempoolTx.acceleration || undefined,
                 acceleratedBy: mempoolTx.acceleratedBy || undefined,
+                acceleratedAt: mempoolTx.acceleratedAt || undefined,
               };
             }
           }

backend/src/mempool.interfaces.ts

@@ -112,6 +112,7 @@ export interface TransactionExtended extends IEsploraApi.Transaction {
   };
   acceleration?: boolean;
   acceleratedBy?: number[];
+  acceleratedAt?: number;
   replacement?: boolean;
   uid?: number;
   flags?: number;
@@ -434,7 +435,7 @@ export interface OptimizedStatistic {
 
 export interface TxTrackingInfo {
   replacedBy?: string,
-  position?: { block: number, vsize: number, accelerated?: boolean, acceleratedBy?: number[] },
+  position?: { block: number, vsize: number, accelerated?: boolean, acceleratedBy?: number[], acceleratedAt?: number },
   cpfp?: {
     ancestors?: Ancestor[],
     bestDescendant?: Ancestor | null,
@@ -446,6 +447,7 @@ export interface TxTrackingInfo {
   utxoSpent?: { [vout: number]: { vin: number, txid: string } },
   accelerated?: boolean,
   acceleratedBy?: number[],
+  acceleratedAt?: number,
   confirmed?: boolean
 }
 

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

@@ -51,6 +51,7 @@ interface AuditStatus {
   accelerated?: boolean;
   conflict?: boolean;
   coinbase?: boolean;
+  firstSeen?: number;
 }
 
 @Component({
@@ -325,7 +326,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
           const boostCost = acceleration.boostCost || acceleration.bidBoost;
           acceleration.acceleratedFeeRate = Math.max(acceleration.effectiveFee, acceleration.effectiveFee + boostCost) / acceleration.effectiveVsize;
           acceleration.boost = boostCost;
-
+          this.tx.acceleratedAt = acceleration.added;
           this.accelerationInfo = acceleration;
           this.setIsAccelerated();
         }
@@ -368,6 +369,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
             const isAccelerated = audit.acceleratedTxs.includes(txid);
             const isConflict = audit.fullrbfTxs.includes(txid);
             const isExpected = audit.template.some(tx => tx.txid === txid);
+            const firstSeen = audit.template.find(tx => tx.txid === txid)?.time;
             return {
               seen: isExpected || isPrioritized || isAccelerated,
               expected: isExpected,
@@ -375,6 +377,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
               prioritized: isPrioritized,
               conflict: isConflict,
               accelerated: isAccelerated,
+              firstSeen,
             };
           }),
           retry({ count: 3, delay: 2000 }),
@@ -388,6 +391,9 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
       })
     ).subscribe(auditStatus => {
       this.auditStatus = auditStatus;
+      if (this.auditStatus?.firstSeen) {
+        this.transactionTime = this.auditStatus.firstSeen;
+      }
       this.setIsAccelerated();
     });
 
@@ -771,6 +777,7 @@ export class TransactionComponent implements OnInit, AfterViewInit, OnDestroy {
     if (cpfpInfo.acceleration) {
       this.tx.acceleration = cpfpInfo.acceleration;
       this.tx.acceleratedBy = cpfpInfo.acceleratedBy;
+      this.tx.acceleratedAt = cpfpInfo.acceleratedAt;
       this.setIsAccelerated(firstCpfp);
     }
 

frontend/src/app/interfaces/electrs.interface.ts

@@ -21,6 +21,7 @@ export interface Transaction {
   cpfpChecked?: boolean;
   acceleration?: boolean;
   acceleratedBy?: number[];
+  acceleratedAt?: number;
   deleteAfter?: number;
   _unblinded?: any;
   _deduced?: boolean;

frontend/src/app/interfaces/node-api.interface.ts

@@ -30,6 +30,7 @@ export interface CpfpInfo {
   adjustedVsize?: number;
   acceleration?: boolean;
   acceleratedBy?: number[];
+  acceleratedAt?: number;
 }
 
 export interface RbfInfo {