https://scotch.io/tutorials/authenticate-a-node-js-api-with-json-web-tokens
https://stackoverflow.com/questions/34331478/angular-redirect-to-login-page
https://dzone.com/articles/build-your-nodejs-application-in-a-modular-way
https://github.com/brechtbilliet/largescale_apps
https://medium.com/@ttemplier/angular2-decorators-and-class-inheritance-905921dbd1b7
https://spin.atomicobject.com/2017/04/24/typescript-modular-typesafe-metadata/
http://menge.io/2015/03/24/storing-small-images-in-mongodb/ http://blog.nbostech.com/2016/10/store-and-read-image-file-in-mongodb-using-nodejsexpressmongoose/ http://www.codexpedia.com/node-js/node-js-http-server-displaying-images-from-a-directory/ https://malcoded.com/posts/nodejs-image-resize-express-sharp
http://stackabuse.com/node-http-servers-for-static-file-serving/
https://medium.com/@dalaidunc/fs-readfile-vs-streams-to-read-text-files-in-node-js-5dd0710c80ea https://medium.freecodecamp.org/node-js-streams-everything-you-need-to-know-c9141306be93
http://www.tutorialsteacher.com/nodejs/serving-static-files-in-nodejs
https://malcoded.com/posts/angular-file-upload-component-with-express
https://stackoverflow.com/questions/7110353/html5-dragleave-fired-when-hovering-a-child-element
https://netbasal.com/create-advanced-components-in-angular-e0655df5dde6
https://www.dev6.com/Modal-Templates-in-Angular2-Part-3
https://blog.angular-university.io/angular-ng-template-ng-container-ngtemplateoutlet/
https://stackoverflow.com/questions/40293240/how-to-manually-lazy-load-a-module
https://stackoverflow.com/questions/39409328/storing-injector-instance-for-use-in-components
https://developer.mozilla.org/en-US/docs/Learn/Server-side/Express_Nodejs/mongoose
https://stackoverflow.com/questions/28218460/nodejs-mongoose-bulk-update
https://stackoverflow.com/questions/27513844/mongooose-query-where-objectid-is-null
https://nodejs.org/en/docs/guides/dont-block-the-event-loop/
http://plnkr.co/edit/Aa8O6lAh9lsOo3qk8gYZ?p=preview
https://stackoverflow.com/questions/43383341/angular-2-reactive-form-validation-messages
https://stackoverflow.com/questions/42184800/how-to-validate-formarray-length-in-angular2
https://medium.com/@mihalcan/angular-multiple-check-boxes-45ad2119e115
http://www.syntaxsuccess.com/viewarticle/recursive-treeview-in-angular-2.0
https://angular2-tree.readme.io/docs/async-data-1
Reflect JS library, Decorator Typescript Dynamic Form and Component in Angular 5 MongoDB and Express based on NodeJS, Lazy load module
Npm link not working with lazy module loader via router Take a lot of time to resolve issues of npm link and angular -cli