@jvhaile/loopback4-helper/src/configurator.ts

Helper components and tools for loopback 4.

function flattenObject(object: any) {
    const keys = Object.keys(object);
    let flat: any = {};
    keys.map(key => {
        const value = object[key];
        if (typeof value == 'object') {
            const flatten = flattenObject(value);
            Object.keys(flatten).forEach(subKey => {
                flat[`${key}.${subKey}`] = flatten[subKey];
            })
        }
        flat[key] = value;
    });
    return flat;
}

export default function configure(env: string, configurationPath: string, onEach: (key: string, value: any) => void) {
    let configFile = {
        config: {}
    }
    let envConfigFile = {
        config: {}
    }

    try {
        configFile = require(`../../../../${configurationPath}/config.default`);
    } catch (e) {
        console.log(e);
    }
    try {
        envConfigFile = require(`../../../../${configurationPath}/config.${env}`);
    } catch (e) {
        console.log(e);
    }

    const config = {
        ...configFile.config,
        ...envConfigFile.config,
    };
    const flatConfig = flattenObject(config);
    Object.keys(flatConfig).forEach(key => onEach(key, flatConfig[key]));
}