I'm currently working on a new ReactJS application. In all the previous applications I've built I used Express for the server side rendering. I used Express because routing in production mode wouldn't work if I didn't.
So I've recently discovered that it's posible to just always redirect my React app to my index.html file and let the React routing just do it's work. This also works when I deploy my application to production.
I know Express can be usefull for SEO porposes but other than that I have no idea why I would need to use it. So am I just missing something? Or is it just fine to don't use Express with my React application if I don't need any SEO.
React configured as a Single Page App, renders the express routing all but unnecessary. The standard transition from a web server rendered app to a single page app is to change the server into a REST Web API and any server side data needed from the React App is obtained through AJAX calls.
So in most cases you don't need Express when you are using React to handle your routing except for in less common cases when you might want to use express as a reverse proxy or something.
If you want to do server-side rendering, you'll need a node server (typically but doesn't have to be express) to render your React components. This could not only help with SEO but also allow your page to appear to load faster (you wouldn't have to wait for the JS to download and run before the user sees the HTML).
If you don't care about the benefits, don't use SSR.
when deploying react application it is just usually an html and a JS file. So you need some kind of server to host it. Luckily there are services out there that offers that like S3, Github etc.
You're using Express because it can host the html and js files. So technically you don't need specifically express but you need some server that will host your files.
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I want to use react on my node.js website. Im using express and handlebars with this website. Is react supposed to be used on top of all that? Or should i not use handlebars or express with react?
Also what is your opinion on node.js? Is it a declining technology? Is there something else that is better for me to use?
React is a view library. Is mean to be used to build your entire ui.
Then you have two options you can use it to build a SPA - single page application - and consume data through network request to your server or render multiple pages each of those will be a react app.
Node + express are backend tech that can help you to build the server side of a web app here you can create some api endpoints to return data to the server and comunícate with the database.
Node is a very good choice as is still and will be used for long time and many companies.
I'm new to Apollo and JS on the server, but not new to React, GraphQL, etc. I'm trying to wrap my head around a clean way of having the server serve both the API, using Apollo, but also the client, which would be built with ReactJS and also Apollo.
I read the article on server-side rendering for Apollo. I might be interested in that in the future, but right now, I'm only interested in having a single project, deployed from a single server, instead of two.
Is it possible to do this cleanly? Is there a canonical way of doing it? can it use create-react-app or is that out of the question?
If you're not doing server-side rendering and just want to serve a Single Page Application (SPA) like what's built with CRA, you can do so using pretty much any HTTP framework or even without one. CRA just builds some static content for you, which you can serve using, for example, Express (see docs here). However, it's typically better to utilize Nginx or Apache for serving this content (at least in production). If you want to utilize Express or another HTTP framework to serve the files, you can utilize the appropriate integration for Apollo Server. If you're using Nginx, then you can stick with the standalone library, assuming you don't want to expose any additional routes on your HTTP server.
In development, you don't want to have to constantly manually rebuild your React application when you make changes, so CRA actually runs a server for you that serves the app and enables hot reloading. Because this is a separate server from your API server, you'll typically want to enable proxying your requests to the API.
It's possible, the setup for apollo is the same as any server, for example, you can use express to serve static files and implement apollo with some minor changes see the docs for apollo server express and implement the one that you are familiar with
I’m trying to figure out how to render landing pages of my react js and node js site to be optimized for seo. Right now I use react for the front end and a proxy to access node api at a different port. Any suggestions on how I can render landing pages server side would be great
You can use Nextjs for SSR.
Next.js is a JavaScript framework created by Zeit. It lets you build
server-side rendering and static web applications using React.
Here are some cool features Next.js brings to the table taken from Learn Nextjs:
Server-rendered by default
Automatic code splitting for faster page loads
Simple client-side routing (page based)
Webpack-based dev environmet which supports Hot Module Replacement (HMR)
Able to implement with Express or any other Node.js HTTP server
Customizable with your own Babel and Webpack configurations
I'm trying to understand how a MERN app fully works, I've been reading about MongoDB, ExpressJs, ReactJs and NodeJs, I also understand how MongoDB, ExpressJs and NodeJs interact and how ReactJs works on its own, my question is simple (I think).
The question:
If I create an API, using Node,Express and Mongo, and I have an APP managed by React, both need a server (via express, I understand), then, how should I run the API and the React app at the same time. Do I need different URLs? should I configure different ports? how should I integrate them?
I really been reading a lot, but almost every tutorial is made locally (and I'm working in a server with Passenger and I can't change the way it starts), just for Node/Express(with pug or else)/Mongo or just React, and I don't understand how to connect the API and React.
Thanks
It depends on several factors: environment (e.g. development, production), and your control over the server. For development, you can have two different URLs and use something like Webpack Dev Server. Normally you would have the module bundler, e.g. Webpack, watching for changes in your React code. However, this can get more complex if you have Server Side Rendering.
For production, normally you would have the bundled file for your client side application already optimized and minified. If you can change your API, you could serve it statically in a new endpoint, for example: /static/bundle.js and request this endpoint from your index.html file, which will be sent by Express.js server when accessing /.
However, because you will probably want to have routes in your React app, your server will need to know how to handle the client app routes (for example app.get('/*', () => ...), and they could collide with your API endpoints. To solve this, you could:
Prefix your API endpoints with a namespace, e.g. /api/v1/...
Place the API in a different URL, port or subdomain. In this case you would indeed need to run these two servers in parallel. With Node.js, there are helpers to make this more convenient, e.g. concurrently.
Pulling out your concerns: API, React, and Integration for MERN app.
I use three approaches
1) Use foreman. With this, you can specify your API and Web Client in the Procfile. I used it here
2) Use a proxy to handle requests that require your API. So in package.json, you specify your API URL(your API must be running)
// package.json
.......
.......
"proxy": "<path to url:[port no if you're developing locally]>"
Check here.
And you can simply add a script to run your API and React concurrently.
3) Set your API and React app in a Docker container. mern-starter is a perfect place to check for this.
Hope this helps!
I have been working on React.js for a month now. I have been using Webpack dev server which is a node.js Express server and enables us to render react.js on browser. I want to know whether using React.js will limit us on using only a node.js http server or is there a way we can use a simple http server as well with React.js.
I have also been wondering whether it is useful to use React.js for developing webpages that have mostly pre-fixed contents text fields, data etc. during request/response for any API operation.
Does using React.js limits us on using a node.js server
No. React is predominantly a client side library. It doesn't care how it is served to the client.
In the end you are just writing JavaScript. You can deliver the JavaScript code to the client whichever way you want.
It depends. Generally the answer is no. If you only want to use it as a client-side library, it doesn't matter what the web server is. But actually, react components can also be rendered on server side so you can develop universal/isomorphic apps. In that case you will need a node.js server.
Take a look at this universal example.
we are using php+yii2+react +redux+es6 without node.js server, but ngnix. At the end it is just javascript, so that we use gulp + babelify to translate es6 to es5 and then php yii2 application renders basic container to which react application renders himself.
Node.js is one of the options, you can use wathever server you want, just need something like gulp or webpack to compile your js and all dependencies to the ready to use standalone js.