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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/*
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/>
*/
/**
* Helpers for doing XMLHttpRequest-s that are based on ES6 promises.
* Allows for easy mocking for test cases.
*/
/**
* An HTTP response that is returned by all request methods of this library.
*/
export interface HttpResponse {
status: number;
responseText: string;
}
/**
* The request library is bundled into an interface to make mocking easy.
*/
export interface HttpRequestLibrary {
get(url: string): Promise<HttpResponse>;
postJson(url: string, body: any): Promise<HttpResponse>;
postForm(url: string, form: any): Promise<HttpResponse>;
}
/**
* An implementation of the [[HttpRequestLibrary]] using the
* browser's XMLHttpRequest.
*/
export class BrowserHttpLib {
private req(method: string,
url: string,
options?: any): Promise<HttpResponse> {
return new Promise<HttpResponse>((resolve, reject) => {
const myRequest = new XMLHttpRequest();
myRequest.open(method, url);
if (options && options.req) {
myRequest.send(options.req);
} else {
myRequest.send();
}
myRequest.addEventListener("readystatechange", (e) => {
if (myRequest.readyState === XMLHttpRequest.DONE) {
const resp = {
responseText: myRequest.responseText,
status: myRequest.status,
};
resolve(resp);
}
});
});
}
get(url: string) {
return this.req("get", url);
}
postJson(url: string, body: any) {
return this.req("post", url, {req: JSON.stringify(body)});
}
postForm(url: string, form: any) {
return this.req("post", url, {req: form});
}
}
/**
* Exception thrown on request errors.
*/
export class RequestException {
constructor(public detail: any) {
}
}
|
