Mask functions

mask-functions.js

function maskVersion(version) {
    let newVersion = {};
    [
        '_id',
        'name',
        'version',
        'scripts',
        'engines',
        'dist',
        'main',
        'dependencies',
        'devDependencies',
        'optionalDependencies',
        'bundledDependencies'
    ].forEach(key => {
        if(version[key]) {
            newVersion[key] = version[key];
        }
    });
    newVersion.dist.tarball = newVersion.dist.tarball.replace('https://registry.npmjs.org', 'http://localhost:3000');
    return newVersion;
}

function mask(obj) {

    let newObj = {};
    ['_id','name', 'dist-tags'].forEach(prop => {
        newObj[prop] = obj[prop];
    });
    newObj.versions = {};
    Object.keys(obj.versions).forEach(key => {
        newObj.versions[key] = maskVersion(obj.versions[key]);
    });
    return newObj;
}