I've created a react redux project, now how do I add some SEO functionalities to project? I do not want to waste much time while refactoring codes.
You need to setup the redux store on the server and pass its initial state down to the client, so that the server-render and initial client render don't differ
Not all life cycle functions are called on the serverside, mainly componentDidMount is not called. This indeed helps if you want to do some AJAX data fetching (which you only want to do on the client).
If you are using react-router you need to setup the serverside route matching
Here are some more details: React can be used on server side rendering. What does that mean?
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I'm new in Next.js and GraphQL world. So far i've been using react with reduxjs and axios for API calls. I would learn more advanced stuff so here is my question. If i'm using apollo graphql what options do i have for local state management? It can be handled by apollo itself or i should use external tool like redux store?
Apollo at its heart is a GraphQL implementation that helps people manage their data. They also make and maintain a GraphQL client (Apollo Client) which we can use with React frameworks like Next.js.
The Apollo Client is a state management client that allows you to manage both local and remote data with GraphQL and you can use it to fetch, cache, and modify application data.
In this article, we’ll discuss why we should use the Apollo Client with Next.js and how we can use the Apollo Client with Next.js to render pages via the three rendering methods Next.js supports; static site generation (SSG), server-side rendering (SSR), and client-side rendering (CSR).
If you want to use your Redux and Apollo state in a component, you need to use both graphql from react-apollo and connect from react-redux. This will let you better track the different events that happen in your app, and how your client and server side data changes interleave.
Why use Apollo Client with Next.js
First, let’s look at why we should use the Apollo Client with Next.js. There are three key reasons to use the Apollo Client:
Out-of-the-box support for caching
Built-in loading and error states
Declarative approach to data fetching
Out-of-the-box support for caching
In Apollo’s own words, “Caching a graph is no easy task, but we’ve spent two years focused on solving it.”
Apollo has invested serious amounts of time in making their caching process the most efficient and effective they can. So, why try and reinvent the wheel? If you’re fetching data in your application and working with GraphQL, then the Apollo Client is a great way of handling your data.
Another benefit is that there is minimal setup required for developers using the client. Apollo even labels it as “zero-config.” We will see this in our application example further in the post, but to set up caching in an application, all we need to do is add the code below to our application:
import { ApolloClient, InMemoryCache } from '#apollo/client';
const client = new ApolloClient({
cache: new InMemoryCache()
})
Built-in loading and error states
The Apollo Client has a custom React Hook built into it called block useQuery, which we will use in our example application, and gives us built-in loading and error states for us to use.
While this doesn’t sound impressive, what it means for developers is that we don’t need to spend time implementing this logic ourselves, we can just take the booleans the Hook returns and change our application rendering as required.
Thanks to these built-in states, using the Apollo Client means we can spend less time worrying about implementing data fetching logic and focus on building our application.
Declarative approach to data fetching
Another benefit of the way the Apollo Client implements the useQuery Hook is that data fetching with the Apollo Client is declarative rather than imperative.
What this means for us is we only need to tell Apollo what data we want and it gets it for us. We don’t need to write the logic and give it a list of step-by-step instructions on how to do it or handle it.
Once again, this is another great example of how the Apollo Client helps speed up development and make us more efficient developers when working with GraphQL.
You can learn more in this page right here if why use nextjs with apollo: This link
By default, Apollo Client creates its own internal Redux store to manage queries and their results. If you are already using Redux for the rest of your app, you can have the client integrate with your existing store instead.
In simple words, When you're using Apollo, you shouldn't be putting that data into Redux. You can still use Redux for other things, but apollo's duty is to store that data and make it accessible to your components. Taking it out and putting it into Redux means doing double the work for no added gain, and there's a strong risk you'll introduce a lot of asynchrony between the two levels as a result.
Referenced from here:
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And learn more if u want to integrate redux and apollo from here: enter link description here
Learn more if it is necessary to use redux with apollo right here as well: enter link description here
I would like to know of a good way to organize reactfire hooks (such as useUser or useFirestoreCollectionData) in a medium-sized application:
I could put hooks in a top-level component, and pass this information as props down to subcomponents (or use a Context to store state).
I could put hooks within each component when needed, so I would end up with multiple useUser or useFirestoreCollectionData hooks.
The second approach decouples some of the components, which is nice since our project is under active development.
However, I am not sure if reactfire or firebase client library has built-in deduplication, compared to libraries such as SWR or react-query. I would prefer to minimize unnecessary reads.
I like to use a offline first approach when using the Firebase databases. None of the awailable libraries could fit our needs so I made my own list of providers where all of them are decoupled. The main goal was:
to have all data awailable offline no matter if the app is online or not (this also increases response time for users)
to persist realtime listeners for RTDB and Firestore
when you have for example a list and go to a single item and back you probably don't want to stop the listener when leaving that list component and start it again when comming back. If you stop and start it the firebase SKD will load all data from the database.
You can find the providers and an example app here.
We will be doing our first project using React.
It will not be a Single Page App, but a Multiple Page App.
What I'm trying to figure out at the moment is : what's the difference between a component and an app.
If I only use components, can I still use Redux to have some state management on the current page ? Or do I need an app for this ?
Thanks for the information you can bring !
THoma
There is no special object called "React App". React Components build an "React App" by coming together.
But React Components are formed like tree structure. That means each component have a parent component so you can create a React Component that named "App" and can put another components inside it.
You don't need redux for state management in React Components.
I hope the answers have helped.
Your app may contains a single component and still it will be a react App. If you are using multiple components in a page you can still use react-redux. Redux is basically a container for your states and let suppose you need some state from one component to be consumed in another, Redux provide you a mechanism to make the communication efficient and predictable.
You can also look at the React Context APIs as an alternate to Redux.
An app is simply a component that holds the root of the work you are trying to do. For example an App may have the navigation menu, testimonials, adverts, content, login avitar etc.
If you are making a single App per page (For example a testimonial) then you would still have a SPA. For example, adding testimonials, searching, editing.
You should only use Redux if you are using a SPA with lots of different parts with data in common. If you are making a one-app-per-page and there is no cross over in data then you can simply using Reacts State/Props to hold your data.
Redux is good, but it forces you into a complex path your should try to avoid. If you find yourself wanting data from different domains (customers address and a list of testimonials) then you should use Redux.
If this is a new applications (green) then I strongly recommend you build the whole thing within a SPA using React-Router to control components. you can use frameworks like Next.JS to ensure the site remains small in size (dynamically loading script only when required).
I built a PWA with react, react-redux, react-router, and react-loadable. I built an app with Corona which uses a webview to point to the PWA. [The native app gives me access to features the PWA does have on iOS]. That works fine. However, the webview doesn't support service workers. As a result nothing gets cached and the app reloads the page every time it is opened.
Is there a way to store the js/css bundles using react-redux?
Perhaps another way to achieve storage (full or partial) to reduce the networking requirements on subsequent opens?
At the moment I am not looking to cache the API calls that happen to a database, but the actual components that are rendered (or the bundles that are loaded to render the components).
I expect this is not a new question, but I've found nothing so far... which leads me to think there is no good answer.
I think what you want does not fit with reduxs intentions as a state source. I think localstorage maybe a thing that could help your need.
Like duc mai pointed out, in a browser/webview environment you can usually use the localStorage or sessionStorage API to persist data.
When building with React, I use redux-persist to automatically save the redux state with every change. It persists the state as stringified json.
I am building an isomorphic app with React that must support users without JS.
I am new in this technology and I have a basic doubt:
The server can store the components states to emulate what React does in the client-side?
I imagine this flow when the user dont have JS:
The user click a button and send a request to the server.
The server recovers the state of the app and makes changes in it.
The components listen this changes and are rendered again.
Is it correct?
Assuming that you're using react-router :
The server aims to initialize your state, to provide it the default minimum values necessary to make your application work while getting an url.
For example, if you have an application in which you want to display a user list, let say on /users URL, when you'll send your first request, the server will store the users in the react state.
After that first load, you'll be working on the client side using react-router, and making XHR request.
However, if you refresh your page, the process will start again : first load initializing the state and then client side navigation.
EDIT : Explanations =>
When you want to use react on the server, this means that you use a Nodejs server. The fact is that react-dom provides a method called renderToString that transform a react jsx component into standard HTML.
This aims to load the first call faster
Why ?
When you load a "big" JS application on the client, you have some delay time, the time your browser needs to download your JS bundle.
Server side rendering aims to avoid that behaviour, or at least, to gives the feeling that the app starts faster.
In no case you can only use react, even if you use your server side renders. Why ? . Because your events on buttons, or asynchronous load on client, or keypress are in JS language.