poeditor: export all projects/languages to resx files (or any format)

poeditor-export.js

//Install nodejs and the npm dependencies:
//npm install node-poeditor
//npm install async-file
//npm install linq-es2015
//npm install requisition
//
//run:
//node poeditor-export.js

const token = 'you-api-token-here';

const poconnect = require('node-poeditor');
const fs = require('async-file');
const Enumerable = require('linq-es2015');
const req = require('requisition');
const path = require('path');

//Name of projects to export. exportName will be the name of the exported file (without extension)
//All languages of these projects will be exported
const projectSettings = [
    {name:'Cosmo texts.resx', exportName:'Texts'},
    {name:'Cosmo InfoPlist.resx', exportName:'InfoPlist'},
    {name:'Cosmo.SMS.Emails.Links', exportName:'Links'},
];
//Default language reference
const rootLanguage = 'en';
//Output folder
const rootFolder = 'translations';

const exportParameters = {
    language: 'en',
    type: 'resx',
    //tags: '["someTag"]',
    //filters: '["someFilter"]'
};

async function extractProject(project, settings)
{
    console.log("Extracting " + project.name)

    //Loop through languages
    var projectLanguages = (await poconnect.languages.list(token, project.id)).languages;
    var promises = [];
    for(language of projectLanguages) {
        var exportParams = Object.assign({}, exportParameters, {language: language.code});
        var exportUrl = (await poconnect.projects.export(token, project.id, exportParams)).url;
        // download and save file
         //path.join();
        var filename = language.code != rootLanguage ? settings.exportName + '.' + language.code + '.resx' : settings.exportName + '.resx';
        filename = path.join(rootFolder, filename);
        await downloadOverwiteFile(exportUrl, filename);
        //promises.push(await downloadOverwiteFile(exportUrl, filename)); //PO API dl the wrong language !
    };

    await Promise.all(promises);
}

async function downloadOverwiteFile(url, filename)
{
    console.log('downloading ' + filename);
    var response = await req(url);
    await response.saveTo(filename);
    response.destroy();
}

(async () => {
    try {
        console.log('starting!');
        var projects = (await poconnect.projects.list(token)).projects;
        console.log('examining ' + projects.length + ' projects');

        var projectNames = Enumerable.from(projectSettings).Select(p => p.name).ToArray();
        var promises = [];
        for(var project of projects)
        {
            var settings = Enumerable.from(projectSettings).FirstOrDefault(p => p.name == project.name);
            if(settings != null)
                await extractProject(project, settings);
                //promises.push(extractProject(project, settings)); //Parallel call (no await)
        }

        await Promise.all(promises);
        console.log('finished!');

    } catch (err) {
        console.log(err);
    }
})();