1 files changed, 14 insertions, 7 deletions
diff --git a/packages/web-util/src/context/activity.ts b/packages/web-util/src/context/activity.ts
index 460c01096..d12d1efb6 100644
--- a/packages/web-util/src/context/activity.ts
+++ b/packages/web-util/src/context/activity.ts
@@ -14,11 +14,11 @@
  GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
  */
 
-import { ObservabilityEvent, TalerAuthenticationHttpClient, TalerBankConversionHttpClient, TalerCoreBankHttpClient, TalerMerchantInstanceHttpClient, TalerMerchantManagementHttpClient } from "@gnu-taler/taler-util";
+import { ChallengerHttpClient, ObservabilityEvent, TalerAuthenticationHttpClient, TalerBankConversionHttpClient, TalerCoreBankHttpClient, TalerExchangeHttpClient, TalerMerchantInstanceHttpClient, TalerMerchantManagementHttpClient } from "@gnu-taler/taler-util";
 
 type Listener<Event> = (e: Event) => void;
 type Unsuscriber = () => void;
-export type Suscriber<Event> = (fn: Listener<Event>) => Unsuscriber;
+export type Subscriber<Event> = (fn: Listener<Event>) => Unsuscriber;
 
 export class ActiviyTracker<Event> {
   private observers = new Array<Listener<Event>>();
@@ -26,7 +26,7 @@ export class ActiviyTracker<Event> {
     this.notify = this.notify.bind(this)
     this.subscribe = this.subscribe.bind(this)
   }
-  notify(data: Event) {
+  notify(data: Event): void {
     this.observers.forEach((observer) => observer(data))
   }
   subscribe(func: Listener<Event>): Unsuscriber {
@@ -50,15 +50,18 @@ export interface APIClient<T, C> {
   getRemoteConfig(): Promise<C>;
   VERSION: string;
   lib: T,
-  onActivity: Suscriber<ObservabilityEvent>;
+  onActivity: Subscriber<ObservabilityEvent>;
   cancelRequest(id: string): void;
 }
 
 export interface MerchantLib {
-  management: TalerMerchantManagementHttpClient;
+  instance: TalerMerchantManagementHttpClient;
   authenticate: TalerAuthenticationHttpClient;
-  instance: (instanceId: string) => TalerMerchantInstanceHttpClient;
-  impersonate: (instanceId: string) => TalerAuthenticationHttpClient;
+  subInstanceApi: (instanceId: string) => MerchantLib;
+}
+
+export interface ExchangeLib {
+  exchange: TalerExchangeHttpClient;
 }
 
 export interface BankLib {
@@ -67,3 +70,7 @@ export interface BankLib {
   auth: (user: string) => TalerAuthenticationHttpClient;
 }
 
+export interface ChallengerLib {
+  challenger: ChallengerHttpClient;
+}
+