Movie listings application with react-router v4 _ sigient

In my previous article Getting Rowdy with React Router we outlined quite a few changes to React Router and what that means for us. Fda 510 k database If you’re interested in upgrading your already existing application, this article can be used as a reference sheet for ideas. Database research If you’re starting brand new, this would get you up and running with the latest version of React Router. Instead of walking through setting up Webpack, React, servers, and whatever cool new JavaScript thing there is, we’re going to rely on create-react-app! Check out Create a New React Application the Easy Way if you’re not familiar.


Whew! All right, we’re done with referencing articles. Graph database Let’s start introducing a SPA router to our React application! Generating Our Application 1.0 create-react-app First things first, let’s generate this application — we’ll call it Flix! This will give us a slightly barebones application that we can use to demonstrate the effectiveness of React Router. Data recovery android free $ npm install -g create-react-app Without getting too technical on what create-react-app is doing, I’m going to show you the helpful commands that were placed in our package.json … Your terminal should clear and you should see a happy green Compiled successfully! while the start script opens a browser to show you the newly generated application. Database software It should look something like this: All right, it’s not that much better than a todo list, but at least we’ll get to think about watching movies. Database software definition Now that we’re all ready to go, let’s remove the default React boilerplate that was provided to us. Navigate to src/App.js remove some code just to make it presentable for our application. Database error 7719 at exe Depending on the version of create-react-app, you may not have this exact code, but that’s okay! All we’re doing is changing a few lines to get the visuals going. This is what was generated from create-react-app. Data recovery nj Let’s change the h2 our application name of Flix and remove the logo and paragraph. Iphone 6 data recovery mac import React, { Component } from ‘react’; Great, we’re as barebones as we can be (even though we scaffolded). Database design tool We should be able to start installing packages and making this our own application! Building Our Application 3.0 Styles This is not required, but if you’re following along and your application is looking a little sad, copy and paste these styles into your src/index.css. H data recovery software This will make your eyes feel better. 1 care data recovery software 3.1 Project Structure Now that we’re getting into React land, we may want a little more structure than what create-react-app has provided us. Database user interface Currently we’re limited to a src directory where all of our JS, CSS, and images live. Data recovery jaipur I tend to gravitate towards a separate directory for each section of the application. Database platforms Let’s set that up. Data recovery group $ cd src/ If we’re going to add additional sections to the application, we would likely create a directory inside components/ that contains components directly pertinent to the section. Database xls For now, let’s place our components as .js files inside the components directory. C database library 3.2 Project Dependencies We need to install the react-router latest version, and at this time it is v4.0.0-alpha.4. 510 k database Make sure you’re in your project directory when you install react-router. Note: If you’re running npm v2.15.9 or less you may be required to upgrade to v3. How to become a database administrator This may prevent you from installing react-router due to unmet peer dependencies. Database xml Upgrading npm will resolve this: npm install -g npm. Database terminology $ npm install –save react-router@4.0.0-alpha.4 Thinking a little bit ahead, we know we’re showing movies and your thought might be how are we getting this data? For the sake of brevity, we’re going to create a movies.json file with our data. Database theory This will act as if we’re pulling information from an API or database. Then we can copy & paste this data in there and forget about it forever. Database 1 to 1 relationship Of course you can add to it if you’d like, but for now these movies will illustrate the point. Database testing 3.3 Home Page Okay, let’s start routing! Because we’re creating a movie listings application I thought we could start by adding listings of movies on the front page. Database graph To do that, we’re going to have to configure our root route to render a Home component. Database naming conventions In 3.0 Project Structure, we created a directory named components, which is where our components for our home will live. Database entity $ cd src/components/ Now that the file is created, let’s create a featured movies section on our home page that highlights the top 4 movies. Database developer I don’t think we’ll need any React lifecycle methods, so let’s go ahead and create a stateless Home component. We’ll show a header and then iterate through our movies collection and show the top 4 inside a FeaturedMovies component. Data recovery plan import React from ‘react’; Note: If you’re a little new to React, you’ll probably be asking why we’re attaching a key prop to FeaturedMovie. Data recovery kansas city In React, when we’re iterating over a collection, React wants to know the uniqueness of the element. N k database When we attach a key to the element, React more or less “tracks” this and will keep the identity. Data recovery 2016 If there was no key defined, React would re-render this element on every single render. Great! This is starting to shape up. 510 k database fda You should be getting a compile error telling you that FeaturedMovie component does not exist. Database programmer Let’s fix this. Data recovery osx $ cd src/components/ Based on our Home component all we’re doing is creating a presentation component for featured movies. Database integrity This component will take a movie and display the information about it! Like before, we don’t need the React lifecycle methods, so we’re free to create this as a stateless component. Database backup import React, { PropTypes } from ‘react’; Note: PropTypes in React are used to check the data coming through to a component. Hollywood u database If we declared movie as a string and we gave FeaturedMovie an object, it would result in a Warning: Failed prop type: Invalid prop ‘movie’ of type ‘object’ supplied to ‘FeaturedMovie’ expected ‘string’. Data recovery ipad The application will still run but could result in actual errors if your component requires a certain type. Okay, recapping a little bit, we’ve created a Home component that will have a header, iterate through our movie collection, and show the FeaturedMovie component. Database vs server The only thing that’s left for this piece is wiring up the root route of the application to display our Home component. We’ve added as the first child of our render method and nested all of our code inside it. Database is in transition This will ensure everything that is a child of our App component will have direct access to routing. Data recovery ios Additionally, we’ve added a navigation link that will tell the router where we want to direct the user. Database data types After a user has clicked the navigation link, React Router notices we have a component that is looking for the exact pattern of / and will render the Home component in that exact place. Before we dive into creating the component, let’s setup the routing. Data recovery johannesburg In our src/App.js we need to create another for this upcoming route. Iphone 5 data recovery software Remember, if the pattern matches, it will immediately render that component. Database operations In our case, the Home component will not be loaded when the URL matches /movies/:movieId. Database index Only the individual movie component will load. There is a possibility that we can render two components
that are separate from each other — for instance, what if we wanted to show the individual movie details under the Featured Movies section? This is a valid use case, but we’re not covering that in this article. I think we’re also going to need to link the image of the Featured Movie to this individual movie component. Database crud Let’s add that link in the FeaturedMovie component. Drupal 8 database import Link from ‘react-router/Link’; Here we’ve imported Link from React Router and then wrapped our img tag with that component. Data recovery disk We used the to property to tell React Router where we want to send the user when they click this image. Database 3 tier architecture It should change the URL to /movies/:movieId, and then our Home component should pick up the change and render the Movie component. After creating the file, let’s talk about the data we’re trying to grab here. Data recovery orlando In a React application that uses Redux, we could grab this individual movie we’ve clicked into from the application’s state. Database cardinality However, we don’t have Redux. Database unit testing We have a data file that is simulating an API, DB, or Redux state tree. I data recovery software free download We’ll have to find the movie in our movies.json and render that information. O review database import React, { PropTypes } from ‘react’; Going quickly over the code, we’re creating another stateless component that takes params as an argument, and we destructure that object to grab the movieId that’s in the Link from FeaturedMovie. Database in recovery As soon as we have the id of the movie we’re looking up, we can create a variable named movie and find the film in our movies.json. You may notice we’re using parseInt on the movieId parameter. Data recovery wizard professional This is passed over as a string from the URL pattern. Data recovery open source In order to compare and find the movie in our movies.json, we could either use parseInt with strict equality or type-converting equality such as ==. Gif database If we tried to use strict equality without parseInt, we wouldn’t find our movie! After we’ve found our individual movie in our dataset, we can show the details as normal. Data recovery lifehacker We should be able to navigate to individual movie pages now! Try clicking one of the featured movies on the home page. Top 10 data recovery software 2014 3.5 Movies Page We’re almost there. Database gale We’ve added a home page with featured movies and an individual movie details page. Database life cycle I think it’s time to add a listing of all the movies we host at Flix. Data recovery dallas Let’s add a Link, Match, and import in our App.js to prepare our application for the component. Data recovery usb import Movies from ‘./components/Movies’; // import our component Nothing out of the ordinary. Database 4th normal form Like before, all we need to do is setup a Link, Match, and a rendered component. V database in oracle Let’s create this last component! $ cd src/components/ Similar to our FeaturedMovies component, we’re importing the movies from our dataset movies.json and then iterating over the entire collection. Data recovery tampa We’ve wrapped the movie image in a Link that directs the user to the individual movie page. R studio data recovery with crack That should sum it up! 3.6 Adding Helpful Features We’ve created an application that has three routes /, /movies, and /movies/:movieId. Database uses What if a user came to our application and decided they wanted to visit flix.com/battlestar-galactica? I wish we could ignore the possibility of user’s making up their own URLs. Database history Unfortunately we can’t! React Router provides a helpful component for this purpose. Database b tree First, it will try to find a match for the URL pattern and then decide “Welp, nothing here.” and render the if it is available. Database optimization Let’s add this in our App.js! … There you have it: a simple movie listings application that uses React Router to serve basic routes. Data recovery software reviews In the next part of this series, Introducing Authentication to Your SPA, we will add protected and public routes using React Router and some strategies involved with authentication! This application is hosted on GitHub, and you may use it however you like. Cnet data recovery Sources

banner