|
1 | 1 | # Установка |
| 2 | + |
2 | 3 | ```bash |
3 | 4 | yarn add @atls/nestjs-dataloader |
4 | 5 | ``` |
5 | 6 |
|
6 | 7 | # Использование |
| 8 | + |
7 | 9 | 1. Импортируйте DataLoaderModule в ваш модуль: |
| 10 | + |
8 | 11 | ```typescript |
9 | | -import { DataLoaderModule } from '@atls/nestjs-dataloader'; |
| 12 | +import { DataLoaderModule } from '@atls/nestjs-dataloader' |
10 | 13 |
|
11 | 14 | @Module({ |
12 | 15 | imports: [DataLoaderModule], |
13 | 16 | }) |
14 | 17 | export class AppModule {} |
15 | 18 | ``` |
| 19 | + |
16 | 20 | 2. Создайте свой кастомный DataLoader: |
17 | | -```typescript |
18 | | -import * as DataLoader from 'dataloader'; |
19 | | -import { Injectable } from '@nestjs/common'; |
20 | 21 |
|
| 22 | +```typescript |
| 23 | +import * as DataLoader from 'dataloader' |
| 24 | +import { Injectable } from '@nestjs/common' |
21 | 25 | @Injectable() |
22 | 26 | export class MyDataLoader extends DataLoader<string, string> { |
23 | 27 | constructor() { |
24 | 28 | super(async (keys: string[]) => { |
25 | | - // Ваш код для загрузки данных пачками |
26 | | - }); |
| 29 | + / Ваш код для загрузки данных пачками |
| 30 | + }) |
27 | 31 | } |
28 | 32 | } |
29 | 33 | ``` |
| 34 | + |
30 | 35 | 3. Зарегистрируйте ваш DataLoader в провайдерах: |
| 36 | + |
31 | 37 | ```typescript |
32 | | -import { MyDataLoader } from './my-dataloader'; |
| 38 | +import { MyDataLoader } from './my-dataloader' |
33 | 39 |
|
34 | 40 | @Module({ |
35 | 41 | providers: [MyDataLoader], |
36 | 42 | }) |
37 | 43 | export class AppModule {} |
38 | 44 | ``` |
| 45 | + |
39 | 46 | 4. Инжектируйте DataLoader в резолверы и сервисы: |
| 47 | + |
40 | 48 | ```typescript |
41 | | -import { MyDataLoader } from './my-dataloader'; |
| 49 | +import { MyDataLoader } from './my-dataloader' |
42 | 50 |
|
43 | 51 | @Injectable() |
44 | 52 | export class MyService { |
45 | 53 | constructor(private readonly dataLoader: MyDataLoader) {} |
46 | 54 |
|
47 | 55 | async getData(key: string) { |
48 | | - return this.dataLoader.load(key); |
| 56 | + return this.dataLoader.load(key) |
49 | 57 | } |
50 | 58 | } |
51 | 59 | ``` |
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