Axios next js

Axios next js DEFAULT

Next.js

Recommended: or .

If you're using Next.js 9.3 or newer, we recommend that you use or instead of .

These new data fetching methods allow you to have a granular choice between static generation and server-side rendering. Learn more on the documentation for Pages and Data Fetching.

enables server-side rendering in a page and allows you to do initial data population, it means sending the page with the data already populated from the server. This is especially useful for SEO.

will disable Automatic Static Optimization.

is an function that can be added to any page as a . Take a look at the following example:

Or using a class component:

is used to asynchronously fetch some data, which then populates .

Data returned from is serialized when server rendering, similar to what does. Make sure the returned object from is a plain and not using , or .

For the initial page load, will run on the server only. will then run on the client when navigating to a different route via the component or by using . However, if is used in a custom , and the page being navigated to implements , then will run on the server.

Context Object

receives a single argument called , it's an object with the following properties:

  • - Current route. That is the path of the page in
  • - Query string section of URL parsed as an object
  • - of the actual path (including the query) shown in the browser
  • - HTTP request object (server only)
  • - HTTP response object (server only)
  • - Error object if any error is encountered during the rendering

Caveats

  • can not be used in children components, only in the default export of every page
  • If you are using server-side only modules inside , make sure to import them properly, otherwise it'll slow down your app

TypeScript

If you're using TypeScript, you can use the type for function components:

And for , you can use :

Related

For more information on what to do next, we recommend the following sections:

Data Fetching

Learn more about data fetching in Next.js.

Pages

Learn more about what pages are in Next.js.

Automatic Static Optimization

Learn about how Nextjs automatically optimizes your pages.

next/ampStatic Optimization Indicator


Edit this page on GitHubSours: https://nextjs.org/docs/api-reference/data-fetching/getInitialProps

React Universal with Next.js: Server-side React

The term "universal" is a community-coined term for building web apps that render happily on a server. You might be familiar with "isomorphic" as well but the goal of this article is not to debate names; we are going to learn how to build server-rendered React apps with Next.js.

We've talked about building React server-side before. Today we'll discuss the topic more since it's an important one.

Why Build Universal Apps.

React apps implement the virtual DOM ideology which is an abstraction of the real/original DOM. This abstraction is very useful to app performance because we can take a portion of the DOM, bind whatever data we need to bind, and insert back to the original DOM tree. This is in no way standardized and is just a concept that front-end frameworks utilize to make better user experience a true story.

Just as every great thing comes with a price, Virtual DOM poses a problem. The original DOM which was received based on some information provided by the server has been lost. You might be wondering why that matters -- it does and we will see how.

Search Engines do not care about how your app is architected or whatever ideology was used so as to adjust and fetch the right content. Their bots are not as smart as using your apps like a real user would. All they care about is that once they send their spiders to crawl and index your site, whatever the server provides on the first request is what gets indexed. That is bad news because at that time your app lacks the actual content on the server. This is what the spider takes home from your website:

React Server-side Preview

Preview

React Server-side Preview

Source

Get Started w/ JavaScriptfor free!

Things even get worst when you try to share your app on a social media platform like Facebook or Twitter. You are going to end up with an unexpected behavior because your actual content is not loaded on the server, it's just the entry point (probably the content of some ) that is.

How do we tackle these problems?

Go Universal with Next.js

Universal apps are architected in such manner that your app renders both on the client and the server. In React's case, the virtual DOM is eventually dropped on the server as well as using some mechanisms that might give you headache if you don't choose the right tool.

I have worked with few solutions but Next.js it is very promising. Next is inspired by the 7 Principles of Rich Applications. The idea is to have a good experience while using web app as well as building it. The experience should feel natural.

Next offers more out of the box:

  • No configuration or additional setup
  • Easy component and global style with Glamor
  • Automatic transpilation and bundling (with webpack and babel)
  • Hot code reloading
  • Static file serving. ./static/ is mapped to /static/
  • Route prefetching. Coming soon

DEMO: Barclays Premier League Table

Let's do something fun with Next.js together. We will use the Football Data API to build a simple small app that shows the Barclays Premier League ranking table. If that sounds like fun to you, then let's get started.

Prerequisites

Developers hate long stories when it comes to setting up a new project. Worry not, Next.js is just an package and all you need do is install locally and start building your app:

Once the installation is completed, you can update the script to run :

The Next installation installs React as well so no need to do that again. All you need to do now to put a server-rendered web page out there is to create a directory in the root of the app and add an file:

Now run the following command to see your app running at localhost:3000:

Preview

Source

I bet this was easier than you even expected. You have a running app in about 5 minutes that is server-rendered. We are making history!

Page Head

We can add a section in the page so as to define global styles and set meta details:

The component which is provided by Next is used to attach to the DOM of a page. We just wrap the supposed DOM content in Next component.

Ajax Requests

Next provides a which can be used with (optional) which assists in performing async operations. You can use the keyword to handle operations that are deferred. See the following example:

We are using the axios library to carry out HTTP requests. The requests are asynchronous so we need a way to catch the response in the future when it is available. With , we can actual handle the async request without having to use callbacks or chain promises.

We pass the value to by returning an object which properties can be accessed from the like :

React Universal App Progress

We can now bind the data to the rendered template by iterating over the property on the data and printing each of the standings. The class names are as a result of the Pure CSS style included in the head which is a very simple CSS library to get you started.

Routing

You might not be aware but we already have routes in our application. Next does not require any additional configuration to setup routing. You just keep adding routes as pages to the directory. Let's create another route to show more details about a team:

You can navigate from one route to another using the component from Next:

It's time to update the details page to display more information about a given team. The team's position will be passed as a query parameter, , to the page. The will be used to then filter the team's information:

This page displays dynamic content based on the query parameter. We receive the from the and then use the value to filter the data array from a given team based on their position on the table.

The most interesting aspect of the above logic is that we are not requesting data more than once in the app's lifecycle. Once the server renders, we fetch the data and cache it with . Subsequent navigation will be based on the cached data. is preferred to because the data will not persist once the current window exits.

The storage is done using and not because when is called, the browser is not prepared so is not known. For this reason, we need to wait for the browser and a good way to catch that is with React lifecycle method. is said to be isomorphic.

Let's now render to the browser:

Our page does not implement this performance related feature in page. We can update the component accordingly:

The template should also be updated to include links that point to each team's details page:

Error Pages

You can define custom error pages by creating a page to handle 4** and 5** errors. Next already displays errors so if that is fine with you, then no need to create the new error page.

This is what a 404 looks like with the default error page:

React Universal 404

...but with the custom error page, you get:

Deploying

Next is always production ready at all time. Let's deploy to now to see how simple deploying is. First install :

You need to get an account by downloading the desktop app

Update the scripts in to include a command for our app:

Now run the build and start command to prepare for deploying:

You can just deploy by running :

##Additional Resources

Like this article? Follow @codebeast on Twitter

Sours: https://scotch.io/tutorials/react-universal-with-next-js-server-side-react
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Complete setup of Nextjs, SWR , Axios and Material UI with SSR for your upcomming projects

Hello Community,

In this trending world Reactjs is a perfect library for making user interfaces.
But we knew if we want better SEO,SSR, better Image optimisation, Code splitting etc we have better one Nextjs which is build on top of Reactjs for production.

Material ui is a reactjs based material component library mainly focused on providing awesome and mind blowing design system for web apps.

When we work on frontend project we have to care about caching because we make api request to another server for the purpose of getting data.SWR is a strategy to first return the data from cache then send the fetch request and finally come with the up-to-date data.

Axios is used for making api call to our server. You can use Axios for your both client side and server side (getServerSideProps and getStaticProps) hence it is easy and relevant for api request

Library and Framework we will using

  1. Nextjs
  2. SWR
  3. Axios
  4. Material UI

Lets jump to setup

Initialize a new brand nextjs project

Installing dependencies




Lets do some best practices with ssr and swr together

Good luck for your next project..

Sours: https://dev.to/harshmangalam/complete-setup-of-nextjs-swr-axios-and-material-ui-with-ssr-for-your-upcomming-projects-25b0
#4 GetStaticProps with Axios in Next.js - React WooCommerce REST API - Data Fetching - next js axios

# Getting Started with Next.js

This integration guide is following the Quick Start Guide. We assume that you have fully completed its "Hands-on" path, and therefore can consume the API by browsing this url(opens new window).

If you haven't gone through the Quick Start Guide, the way you request a Strapi API with Next.js(opens new window) remains the same except that you will not fetch the same content.

# Create a Next.js app

Create a basic Next.js application.

# Use an HTTP client

Many HTTP clients are available but in this documentation we'll use Axios(opens new window) and Fetch(opens new window).

# GET Request your collection type

Execute a request on the Collection Type in order to fetch all your restaurants.

Be sure that you activated the permission for the Collection Type.

Example GET request with axios

Example GET request with fetch

# Example

# POST Request your collection type

Execute a request on the Collection Type in order to create a restaurant.

Be sure that you activated the permission for the Collection Type and the permission for the Collection type.

In this example a category has been created which has the id: 3.

Example POST request with axios

Example POST request with fetch

# Example

# PUT Request your collection type

Execute a request on the Collection Type in order to update the category of a restaurant.

Be sure that you activated the permission for the Collection Type.

We consider that the id of your restaurant is . and the id of your category is .

Example PUT request with axios

Example PUT request with fetch

# Starter

# Conclusion

Here is how to request your Collection Types in Strapi using Next.js. When you create a Collection Type or a Single Type you will have a certain number of REST API endpoints available to interact with.

We just used the GET, POST and PUT methods here but you can get one entry, get how much entry you have and delete an entry too. Learn more about API Endpoints.

Improve this page(opens new window)

← Angular Nuxt.js →

Sours: https://strapi.io/documentation/developer-docs/latest/developer-resources/content-api/integrations/next-js.html

Js axios next

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React Axios - Tutorial for Axios with ReactJS for a REST API

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