node-json-db/dist/adapter/data/JsonAdapter.js

Database using JSON file as storage for Node.JS

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.JsonAdapter = void 0;
class JsonAdapter {
    adapter;
    humanReadable;
    dateRegex = new RegExp('^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}', 'm');
    constructor(adapter, humanReadable = false) {
        this.adapter = adapter;
        this.humanReadable = humanReadable;
    }
    replacer(key, value) {
        return value;
    }
    reviver(key, value) {
        if (typeof value == "string" && this.dateRegex.exec(value) != null) {
            return new Date(value);
        }
        return value;
    }
    async readAsync() {
        const data = await this.adapter.readAsync();
        if (data == null || data === '') {
            await this.writeAsync({});
            return {};
        }
        return JSON.parse(data, this.reviver.bind(this));
    }
    writeAsync(data) {
        let stringify = '';
        if (this.humanReadable) {
            stringify = JSON.stringify(data, this.replacer.bind(this), 4);
        }
        else {
            stringify = JSON.stringify(data, this.replacer.bind(this));
        }
        return this.adapter.writeAsync(stringify);
    }
}
exports.JsonAdapter = JsonAdapter;
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