blob: 2131d45cb24c8ba8b13e38e82f179f9db8a78e85 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/*
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 { ExchangesListRespose } from "@gnu-taler/taler-util";
import { useEffect, useState } from "preact/hooks";
import * as wxApi from "../wxApi";
interface HookOk<T> {
hasError: false;
response: T;
}
interface HookError {
hasError: true;
message: string;
}
export type HookResponse<T> = HookOk<T> | HookError | undefined;
export function useAsyncAsHook<T> (fn: (() => Promise<T>)): HookResponse<T> {
const [result, setHookResponse] = useState<HookResponse<T>>(undefined);
useEffect(() => {
async function doAsync() {
try {
const response = await fn();
setHookResponse({ hasError: false, response });
} catch (e) {
if (e instanceof Error) {
setHookResponse({ hasError: true, message: e.message });
}
}
}
doAsync()
}, []);
return result;
}
|
