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diff --git a/packages/taler-wallet-webextension/src/cta/InvoiceCreate/index.ts b/packages/taler-wallet-webextension/src/cta/InvoiceCreate/index.ts
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index 000000000..fd3fb52f8
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+++ b/packages/taler-wallet-webextension/src/cta/InvoiceCreate/index.ts
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+/*
+ This file is part of GNU Taler
+ (C) 2022 Taler Systems S.A.
+
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+import { AmountJson, AmountString } from "@gnu-taler/taler-util";
+import { ErrorAlertView } from "../../components/CurrentAlerts.js";
+import { Loading } from "../../components/Loading.js";
+import { ErrorAlert } from "../../context/alert.js";
+import { State as SelectExchangeState } from "../../hooks/useSelectedExchange.js";
+import { ButtonHandler, TextFieldHandler } from "../../mui/handlers.js";
+import { compose, StateViewMap } from "../../utils/index.js";
+import { ExchangeSelectionPage } from "../../wallet/ExchangeSelection/index.js";
+import { NoExchangesView } from "../../wallet/ExchangeSelection/views.js";
+import { useComponentState } from "./state.js";
+import { ReadyView } from "./views.js";
+
+export interface Props {
+  amount: AmountString;
+  onClose: () => Promise<void>;
+  onSuccess: (tx: string) => Promise<void>;
+}
+
+export type State =
+  | State.Loading
+  | State.LoadingUriError
+  | State.Ready
+  | SelectExchangeState.Selecting
+  | SelectExchangeState.NoExchangeFound;
+
+export namespace State {
+  export interface Loading {
+    status: "loading";
+    error: undefined;
+  }
+
+  export interface LoadingUriError {
+    status: "error";
+    error: ErrorAlert;
+  }
+
+  export interface BaseInfo {
+    error: undefined;
+    cancel: ButtonHandler;
+  }
+  export interface Ready extends BaseInfo {
+    status: "ready";
+    doSelectExchange: ButtonHandler;
+    create: ButtonHandler;
+    subject: TextFieldHandler;
+    expiration: TextFieldHandler;
+    toBeReceived: AmountJson;
+    requestAmount: AmountJson;
+    exchangeUrl: string;
+    error: undefined;
+  }
+}
+
+const viewMapping: StateViewMap<State> = {
+  loading: Loading,
+  error: ErrorAlertView,
+  "no-exchange-found": NoExchangesView,
+  "selecting-exchange": ExchangeSelectionPage,
+  ready: ReadyView,
+};
+
+export const InvoiceCreatePage = compose(
+  "InvoiceCreatePage",
+  (p: Props) => useComponentState(p),
+  viewMapping,
+);