|
1 |
| -import {HttpLibrary, RequestContext, ResponseContext} from './http'; |
| 1 | +import { HttpLibrary, RequestContext, ResponseContext } from './http'; |
2 | 2 | import { from, Observable } from '../rxjsStub';
|
3 | 3 | import "svix-fetch";
|
4 | 4 |
|
5 | 5 | const numRetries = 2;
|
6 | 6 | const sleep = (interval: number) => new Promise(resolve => setTimeout(resolve, interval));
|
7 | 7 |
|
8 | 8 | export class IsomorphicFetchHttpLibrary implements HttpLibrary {
|
| 9 | + public send(request: RequestContext): Observable<ResponseContext> { |
| 10 | + const resultPromise = this.sendWithRetry(request, numRetries, 50, 1); |
| 11 | + return from<Promise<ResponseContext>>(resultPromise); |
| 12 | + } |
9 | 13 |
|
10 |
| - public send(request: RequestContext): Observable<ResponseContext> { |
11 |
| - const resultPromise = this.sendWithRetry(request, numRetries, 50, 1); |
12 |
| - return from<Promise<ResponseContext>>(resultPromise); |
13 |
| - } |
| 14 | + private async sendWithRetry(request: RequestContext, triesLeft: number, nextInterval: number, retryCount: number): Promise<ResponseContext> { |
| 15 | + try { |
| 16 | + const response = await this.sendOnce(request); |
| 17 | + if (triesLeft <= 0 || response.httpStatusCode < 500) { |
| 18 | + return response; |
| 19 | + } |
| 20 | + } catch (e) { |
| 21 | + if (triesLeft <= 0) { |
| 22 | + throw e; |
| 23 | + } |
| 24 | + }; |
| 25 | + await sleep(nextInterval); |
| 26 | + const headers = request.getHeaders(); |
| 27 | + headers['svix-retry-count'] = retryCount.toString() |
| 28 | + return await this.sendWithRetry(request, --triesLeft, nextInterval * 2, ++retryCount); |
| 29 | + } |
14 | 30 |
|
15 |
| - private async sendWithRetry(request: RequestContext, triesLeft: number, nextInterval: number, retryCount: number): Promise<ResponseContext> { |
16 |
| - try { |
17 |
| - const response = await this.sendOnce(request); |
18 |
| - if (triesLeft <= 0 || response.httpStatusCode < 500) { |
19 |
| - return response; |
20 |
| - } |
21 |
| - } catch (e) { |
22 |
| - if (triesLeft <= 0) { |
23 |
| - throw e; |
24 |
| - } |
25 |
| - }; |
26 |
| - await sleep(nextInterval); |
27 |
| - const headers = request.getHeaders(); |
28 |
| - headers['svix-retry-count'] = retryCount.toString() |
29 |
| - return await this.sendWithRetry(request, --triesLeft, nextInterval * 2, ++retryCount); |
30 |
| - } |
31 |
| - |
32 |
| - private sendOnce(request: RequestContext): Promise<ResponseContext> { |
33 |
| - let method = request.getHttpMethod().toString(); |
34 |
| - let body = request.getBody(); |
| 31 | + private sendOnce(request: RequestContext): Promise<ResponseContext> { |
| 32 | + let method = request.getHttpMethod().toString(); |
| 33 | + let body = request.getBody(); |
35 | 34 |
|
36 |
| - return fetch(request.getUrl(), { |
37 |
| - method: method, |
38 |
| - body: body as any, |
39 |
| - headers: request.getHeaders(), |
40 |
| - credentials: "same-origin" |
41 |
| - }).then((resp: any) => { |
42 |
| - const headers: { [name: string]: string } = {}; |
43 |
| - resp.headers.forEach((value: string, name: string) => { |
44 |
| - headers[name] = value; |
45 |
| - }); |
| 35 | + return fetch(request.getUrl(), { |
| 36 | + method: method, |
| 37 | + body: body as any, |
| 38 | + headers: request.getHeaders(), |
| 39 | + credentials: "same-origin" |
| 40 | + }).then((resp: any) => { |
| 41 | + const headers: { [name: string]: string } = {}; |
| 42 | + resp.headers.forEach((value: string, name: string) => { |
| 43 | + headers[name] = value; |
| 44 | + }); |
46 | 45 |
|
47 |
| - const body = { |
48 |
| - text: () => resp.text(), |
49 |
| - binary: () => resp.blob() |
50 |
| - }; |
51 |
| - return new ResponseContext(resp.status, headers, body); |
52 |
| - }); |
53 |
| - } |
| 46 | + const body = { |
| 47 | + text: () => resp.text(), |
| 48 | + binary: () => resp.blob() |
| 49 | + }; |
| 50 | + return new ResponseContext(resp.status, headers, body); |
| 51 | + }); |
| 52 | + } |
54 | 53 | }
|
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