-
Notifications
You must be signed in to change notification settings - Fork 13.6k
/
parseResponse.ts
61 lines (59 loc) · 1.9 KB
/
parseResponse.ts
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
49
50
51
52
53
54
55
56
57
58
59
60
61
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import { ParseMethod, TextResponse, JsonResponse } from '../types';
export default async function parseResponse<T extends ParseMethod = 'json'>(
apiPromise: Promise<Response>,
parseMethod?: T,
) {
type ReturnType = T extends 'raw' | null
? Response
: T extends 'json' | undefined
? JsonResponse
: T extends 'text'
? TextResponse
: never;
const response = await apiPromise;
// reject failed HTTP requests with the raw response
if (!response.ok) {
return Promise.reject(response);
}
if (parseMethod === null || parseMethod === 'raw') {
return response as ReturnType;
}
if (parseMethod === 'text') {
const text = await response.text();
const result: TextResponse = {
response,
text,
};
return result as ReturnType;
}
// by default treat this as json
if (parseMethod === undefined || parseMethod === 'json') {
const json = await response.json();
const result: JsonResponse = {
json,
response,
};
return result as ReturnType;
}
throw new Error(
`Expected parseResponse=json|text|raw|null, got '${parseMethod}'.`,
);
}