diff options
Diffstat (limited to 'packages/taler-wallet-webextension/src/hooks/useBalances.ts')
-rw-r--r-- | packages/taler-wallet-webextension/src/hooks/useBalances.ts | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/packages/taler-wallet-webextension/src/hooks/useBalances.ts b/packages/taler-wallet-webextension/src/hooks/useBalances.ts new file mode 100644 index 000000000..37424fb05 --- /dev/null +++ b/packages/taler-wallet-webextension/src/hooks/useBalances.ts @@ -0,0 +1,54 @@ +/* + This file is part of TALER + (C) 2016 GNUnet e.V. + + 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. + + 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 + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +import { BalancesResponse } from "@gnu-taler/taler-util"; +import { useEffect, useState } from "preact/hooks"; +import * as wxApi from "../wxApi"; + + +interface BalancesHookOk { + hasError: false; + response: BalancesResponse; +} + +interface BalancesHookError { + hasError: true; + message: string; +} + +export type BalancesHook = BalancesHookOk | BalancesHookError | undefined; + +export function useBalances(): BalancesHook { + const [balance, setBalance] = useState<BalancesHook>(undefined); + useEffect(() => { + async function checkBalance() { + try { + const response = await wxApi.getBalance(); + console.log("got balance", balance); + setBalance({ hasError: false, response }); + } catch (e) { + console.error("could not retrieve balances", e); + if (e instanceof Error) { + setBalance({ hasError: true, message: e.message }); + } + } + } + checkBalance() + return wxApi.onUpdateNotification(checkBalance); + }, []); + + return balance; +} |