converter.js

var fs = require('fs'),
    Converter = require('swagger2-postman2-converter'),
    request = require('request'),
    config = require('./config.js');


// ###############################################
// define functions to handle conversion and update collection


function handleConversion(originalFileName, newFileName) {

    // read the local swagger file
    var swaggerObject = JSON.parse(
        fs.readFileSync(originalFileName, 'utf8')
    );

    // convert Swagger 2.0 to Postman 2.0
    var conversionResult = Converter.convert(swaggerObject);

    // create a new local file in Postman v2.0 format
    fs.writeFileSync(newFileName, JSON.stringify(conversionResult.collection, null, 2));
    console.log('Converted ' + originalFileName + ' to ' + newFileName);

}

function updateLocalCollection(newFileName, newFile) {

    // update the local Postman collection file
    fs.writeFileSync('./' + newFileName, JSON.stringify(newFile, null, 2));
    console.log('writing to ' + newFileName);

}

function updatePostman(newFileName, collection_uid) {

    // read the updated local file and update the Postman collection using Postman API
    var data = fs.readFileSync('./' + newFileName, 'utf8');

    // Postman users can get a Postman API key here: https://app.getpostman.com/dashboard/integrations
    var postmanAPIKey = config.key;

    // compile PUT request to update the Postman collection
    var putOptions = {
        method: 'PUT',
        url: 'https://api.getpostman.com/collections/' + collection_uid,
        qs: {
            format: '2.1.0'
        },
        headers: {
            'Postman-Token': '4122abb3-6098-6906-e172-49334961f595',
            'Cache-Control': 'no-cache',
            'X-Api-Key': postmanAPIKey,
            'Content-Type': 'application/json'
        },
        body: JSON.parse(data),
        json: true
    };

    // submit PUT request to update the Postman collection
    request(putOptions, function (error, response, body) {
        if (error) throw new Error(error);
        console.log(body);
    });

}

function updateCollection(newFileName) {

    // update the Postman collection locally and in the cloud
    var data = fs.readFileSync('./' + newFileName, 'utf8');

    // search the config for the collection in the read file
    var file = JSON.parse(data);
    var coll = config.collections.find( function (coll) {
        return coll.to === newFileName.split('.')[0];
    });

    // update properties in file, and determine collection uid
    file.info.id = coll.collection_id; // update id according to config file
    file.info._postman_id = file.info.id; // add new property that is identical to id
    var newFile = {};
    newFile.collection = file; // wrap JSON object in new "collection" property

    // call function to update the local collection file
    // and then call function to update the cloud version of the Postman collection using Postman API
    updateLocalCollection(newFileName, newFile);
    updatePostman(newFileName, coll.collection_uid);

}


// ###############################################
// loop through collections in config file to call functions to handle conversion and update collection


config.collections.forEach( function (collection) {

    var originalFileName = collection.from + ".json";
    var newFileName = collection.to + ".json";

    handleConversion(originalFileName, newFileName);
    updateCollection(newFileName);

});