1 files changed, 19 insertions, 1 deletions
diff --git a/packages/taler-util/src/transactions-types.ts b/packages/taler-util/src/transactions-types.ts
index 8c4c2c7ed..bddc03c25 100644
--- a/packages/taler-util/src/transactions-types.ts
+++ b/packages/taler-util/src/transactions-types.ts
@@ -222,7 +222,8 @@ export type Transaction =
   | TransactionPeerPushCredit
   | TransactionPeerPushDebit
   | TransactionInternalWithdrawal
-  | TransactionRecoup;
+  | TransactionRecoup
+  | TransactionDenomLoss;
 
 export enum TransactionType {
   Withdrawal = "withdrawal",
@@ -237,6 +238,7 @@ export enum TransactionType {
   PeerPullDebit = "peer-pull-debit",
   PeerPullCredit = "peer-pull-credit",
   Recoup = "recoup",
+  DenomLoss = "denom-loss",
 }
 
 export enum WithdrawalType {
@@ -298,6 +300,22 @@ interface WithdrawalDetailsForTalerBankIntegrationApi {
   exchangeCreditAccountDetails?: WithdrawalExchangeAccountDetails[];
 }
 
+export enum DenomLossEventType {
+  DenomExpired = "denom-expired",
+  DenomVanished = "denom-vanished",
+  DenomUnoffered = "denom-unoffered",
+}
+
+/**
+ * A transaction to indicate financial loss due to denominations
+ * that became unusable for deposits.
+ */
+export interface TransactionDenomLoss extends TransactionCommon {
+  type: TransactionType.DenomLoss;
+  lossEventType: DenomLossEventType;
+  exchangeBaseUrl: string;
+}
+
 /**
  * A withdrawal transaction (either bank-integrated or manual).
  */