How can I implement "bulk print" in a Single Page application built using Backbone.JS?
Are the techniques similar to adding support for Search Engine to crawl SPA webapp?
Related
I have this website were we can create new questions. Whenever a new question is created a new url is generated I want google to crawl my website everytime a new question is added and display it in google.
I have my front end in react js and backend in express js.
My front end is hosted in firebase and backend in heroku.
Since I am using javascript and my urls are all dynamicly generated google does not crawl or index them.
Currently I am writing all dymaicly created urls into a file in my root folder in backend called sitemap.txt.
What should i do to achive this?
my sitmap link
https://ask-over.herokuapp.com/sitemap.txt
my react apps link
https://wixten.com
my express.js link
https://ask-over.herokuapp.com
i want to add
https://ask-over.herokuapp.com/sitemap.txt to google search console
In fact create-react-app is the wrong tool when SEO matters. Because:
there is only one HTML file
there is no content inside the single HTML file
heavy first load
etc, [search about reasons of using nextjs a good article
SPAs are the best for PWAs, admin panels, and stuffs like this.
But take a look at https://nextjs.org/docs/migrating/from-create-react-app. And my suggestion is to make some plans to fully migrate to Next.js.
Also, search about react SEO best practies and use the helpers and utilities like React Helmet.
create-react-app is not the way to go if you are going for a seo friendly website.
if it's behind a login screen you can go with create-react-app.
if the site is a blog or documentation site , I would suggest you migrate to nextjs or gatsby js or if it's a very small webpage go with raw html, css , js
It's not possible for Google or any other web crawler to crawl your SPA Websites. The best way to fix this is either to use Server Side Frameworks like Next.js or use pre-rendering and redirect crawlers to pre rendering server instead of main website.
You can checkout prerender.io, it has the open source version as well, you can run it on a seperate server and use one of the snippets/plugins for your web server (apache/nginx/others) to redirect requests to different upstream server.
I've been using it for one of my projects (e-commerce store) built on VueJs and it works like a charm.
To understand the basics, what it does is it'll load your website in a browser, and cache the rendered code in it's database/cache, and when any crawler visits your website they'll be redirected to cache which is the generated html page of your website, and crawlers will be able to read everything smoothly.
I'm new to sling, so now I wanted to connect sling CMS with ReactJS Application to dynamically change the data in the front end page with out disturbing the structure of the front end application. To connect ReactJS with Sling CMS, AEM is needed? or any other ways to connect ReactJS with sling CMS
First sling is not CMS. Sling is a java based framework for building RESTful services and applications. AEM is built using JCR Jackrabbit, Apache Sling and few more other technologies.
If you are looking for adding a CMS application to your React app, there are multiple opensource headless CMS tools available like Sanity, Contentful etc.
AEM is little ahead in this game, with its SPA editor, combing its powerful CMS capabilities added on top of React/Angular based SPA applications.
But to mention, inorder to use AEM SPA editor features, you ll also need to refactor the react app.
Choice depends on business usecase, training, license etc.
I am trying to create a complex CRUD React Application using Gatsby JS. The ability for the user to Create Posts, Edit Posts, Delete Posts will also need to be available. This app will have many users. We are not using a third-party CMS. Everything will be done within the Gatsby App. There will also need to be several different pages that will need to handle state, display, and sort the different posts based upon options. My question is, is this sort of project overload for Gatsby JS since it breaks the page model? Gatsby doesn't have a native way to generate dynamic routes or views, only pages. Its sort of a social networking app, is Gatsby JS the wrong tool for the job?
You can create pages "dynamically" using the createPages API.
https://www.gatsbyjs.org/docs/node-apis/#createPages
There's also a great series of videos from Scott Tolinski that demonstrate the use of this API.
However, GatsbyJS is a static static site generator, it's designed for performance and more content-based sites. The only way you're going to get CRUD functionality is through API calls from the front-end which could have some security implications that you need to consider.
As an alternative, you might want to take a look at Next.js. Same kind of idea but the pages are served by Express.js rather than just served off the file system so you have a lot more options for more dynamic sites.
I am learning MEAN Stack. I started from learning Angular(from angular.io) now I am learning node.js and express.js
My question is, if there is angular for front end in MEAN Stack then why there are views and template engines in express.js at back-end? Are they alternative for each other or complements each other? what is the boundary for the role and responsibility of these two?
I am looking forward for someone's help in clarifying of my concept for role these two technologies(express' views and angular) used in mean stack.
In order to answer your question, let me explain what is angular and what are template engines in express?
What is Angular?
Angular is a platform that makes it easy to build applications with the web. Angular combines declarative templates, dependency injection, end to end tooling, and integrated best practices to solve development challenges. Angular empowers developers to build applications that live on the web, mobile, or the desktop.
what is template engine?
A template engine enables you to use static template files in your application. At runtime, the template engine replaces variables in a template file with actual values and transforms the template into an HTML file sent to the client. This approach makes it easier to design an HTML page.
Some popular template engines that work with Express are Pug, Mustache, and EJS. The Express application generator uses Jade as its default, but it also supports several others.
So,
Angular is a framework with a templating component baked in. You use it to create Single page Web Applications which means that DOM modification is happening on the client side and the app exchange with server only data. If your concern is template it is plain HTML.
Whereas, template engines' rendered views are sent to client each time by server whenever request is made each time a new page is rendered on server and sent to the client which is Great for static sites but not for rich site interactions.
If there is angular for front-end in MEAN Stack then why there are views and template engines in express.js at back-end?
This is because not every time generating views from angular is recommended sometimes it is better to use Template Engines to generate views and send the rendered page to a client, generating views at client side has its own pros and cons and generating views at server side has its own.
Generating views using template engines (i.e. at server-side):
pros:
Search engines can crawl the site for better SEO.
The initial page load is faster.
Great for static sites.
cons:
Frequent server requests.
An overall slow page rendering.
Full page reloads.
Non-rich site interactions.
Generating views using angular engines (i.e. at client-side):
pros:
Rich site interactions
Fast website rendering after the initial load.
Great for web applications.
Robust selection of JavaScript libraries.
cons:
Low SEO if not implemented correctly.
The initial load might require more time.
In most cases, requires an external library.
So, after knowing the pros and cons, you yourself can better decide that in particular case which one is better for you. Mean Stack has provided options for developers.
As far as your question regarding the role of these two technologies is concerned, Angular is a lot more view generator only, It has features like routing, it as services two-way data binding etc while the template engines are meant to render HTML so that it can be sent to the client.
I hope you will find this answer useful.
References:
what is the template engine?
what is angular?
pros/cons
Angular is a full-fledged front-end framework that comes with its own way of doing templating, using angular-specific markup in your HTML. If you use Angular as your framework, you're more or less stuck with their way of templating within the Angular portion of your application.
Angular Features
It is a framework written in Javascript language
Manages state of models
Integrates with other UI tools
Manipulates DOM
Allows writing custom HTML codes
It is meant for javascript developers to create dynamic web pages in a quick time
NodeJS
It serves the web
It is runtime built on javascript engine in google chrome
It can be considered as a lightweight server which can serve client requests in a more
simpler way than java does
It performs communication operation with databases, web-sockets,
middleware etc.
Why we use angular for Tempting not Express/Node tempting Engine
Server-side rendering is the most common method for displaying information onto the screen. It works by converting HTML files in the server into usable information for the browser.
Whenever you visit a website, your browser makes a request to the server that contains the contents of the website. The request usually only takes a few milliseconds, but that ultimately depends on a multitude of factors:
Your internet speed
how many users are trying to access the site and
how optimized the website is, to name a few
Once the request is done processing, your browser gets back the fully rendered HTML and displays it on the screen. If you then decide to visit a different page on the website, your browser will once again make another request for the new information. This will occur each and every time you visit a page that your browser does not have a cached version of.
It doesn’t matter if the new page only has a few items that are different than the current page, the browser will ask for the entire new page and will re-render everything from the ground up.
How client-side rendering works
When developers talk about client-side rendering, they’re talking about rendering content in the browser using JavaScript. So instead of getting all of the content from the HTML document itself, you are getting a bare-bones HTML document with a JavaScript file that will render the rest of the site using the browser.
This is a relatively new approach to rendering websites, and it didn't really become popular until JavaScript libraries started incorporating it into their style of development.
See Examples HerePratical Example
Basically template engines in Express are mostly used for displaying 404 and other server error messages. I find them ideal for such use cases. Using template engines for complex front end rendering is bad and not a good practice.
Express JS is a web framework on top of nodejs http module. Whereas Angular JS is a front end framework which doesnot depend on NodeJs server to run. Conceptually both are similar in few features like routing whereas implementation is different
I am developing an app with an AngularJS front end and a Laravel API backend. The Laravel backend just listens for requests, process them and returns an answer. Front and back end are different independent apps... so far. I did it in such a way in order to be able to develop a mobile app later on which could consume the API. Im using also JWT to authenticate users, so Im not using Laravel's sessions at all. At this point I only require a webapp. I built a webapp which uses angular ui-router.
So far so good. The front end and the back end work well. However some of the front end views will be public and require share buttons, they also require to be indexable by Google.
I've read there are some alternatives.
Make some hack using the apache mod_rewrite in order to serve the angular app for people and a static version of it served directly by the backend. I think this would not be very difficult using Laravel.
Using Prerender.js. Which as far as Im concerned does pretty much the same job than option 1 but in a more complete manner.
However I am thinking about using a third alternative. Given that I only require the webapp now and the API is working I am thinking about using Laravel's built-in webapp functionality. I can use the controllers, directives and factories from angular and let Laravel handle the webapp routing.
An advantage of this is that I can render the meta tags using Blade (this fixes completely the SEO issues) and serve the rest of the contents using angular and the API.
Do anyone of you can see drawacks of such a solution or do you know a better way to accomplish SEO purposes using angular and Laravel?
Render Site :
You will have to render the pages from server side if you want to make it SEO friendly. But yes, what if you serve the server rendered pages to bots only. And for real users client side rendering will work.
Read about the Rendertron which will detect the user agent and accordingly serve the html.
Meta Tags :
Use Sluggable and replace id with slug in urls. You can follow https://oodavid.com/article/angularjs-meta-tags-management/