node.js - 如何在 TypeScript(main.ts) Angular 中创建 lowdb？

Question

在Javascript中创建Lowdb工作正常，我在网上搜索过，找不到合适的(根据初学者的理解)解决方案。

使用Js创建lowdb

const low = require('lowdb')
const FileSync = require('lowdb/adapters/FileSync')
var customerpath = process.env.APPDATA+'/VEGFRUIT/Customer.json';
const cusadapter1 = new FileSync(customerpath)
const db = low(cusadapter1)
db.defaults({ customer: [{}]}).write();

如何将上面的一组编码转换为Tyepscript？

Answer 1

1)执行此命令

npm install --save @types/lowdb

2) 这个简短的示例类展示了如何以 typescript 方式使用 lowdb

import lowdb from "lowdb";
import { default as FileAsync } from "lowdb/adapters/FileAsync";

export class DbService {
    private db: lowdb.LowdbAsync<any>;

    constructor(){
        this.initDatabase();
    }

    private async initDatabase() {
        const adapter = new FileAsync("db.json");
        this.db = await lowdb(adapter);
    }

    private async SetSomeonesName(fullname: string): Promise<any> {
        await this.db.set("user.fullname", fullname).write();
    }
}