@ffsm/napi/dist/configuration.js

Napi - A framework using with Next.js for building APIs.

export class NapiConfiguration {
    constructor() {
        this.env = {};
        this.parseEnv();
    }
    parseEnv() {
        if (typeof process === 'undefined' || typeof process.env === 'undefined') {
            return;
        }
        Object.entries(process.env).forEach(([key, value]) => {
            this.env[key] = value;
        });
        return this;
    }
    async loadRegister(register) {
        await Promise.all(Object.entries(register).map(async ([key, regFn]) => {
            const value = await regFn(this);
            this.env[key] = value;
        }));
        return this;
    }
    get(key, defaultValue) {
        if (!key) {
            return this.env;
        }
        const value = this.env[key];
        if (value === undefined) {
            return defaultValue;
        }
        if (typeof value !== "string") {
            return value;
        }
        if (["true", "false"].includes(value.toLowerCase())) {
            return (value.toLowerCase() === "true");
        }
        const asNumber = Number(value);
        if (!Number.isNaN(asNumber) &&
            Number.isFinite(asNumber) &&
            asNumber !== Infinity &&
            asNumber !== -Infinity &&
            asNumber >= Number.MIN_SAFE_INTEGER &&
            asNumber <= Number.MAX_SAFE_INTEGER) {
            return asNumber;
        }
        return value;
    }
    static initialize(register = {}) {
        if (!NapiConfiguration.instance) {
            NapiConfiguration.instance = new NapiConfiguration();
        }
        return NapiConfiguration.instance.loadRegister(register);
    }
}