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An internet connection and a browser that isn’t Internet Explorer.It’s free to sign-up and the API we use in the example below is free as well! Let’s make sure that you are fully prepared to advance and build out API calls using ReactJS. However, in this circumstance, the best way to learn is to build it! Therefore, let’s get started! Prerequisites

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That was a bit of a crash course, and I do not expect you to have a full understanding of React. The component renders with the data that was fetched.The data is received from the external API and added to state (side effect).

The webpage gives an indication it is loading data.

The componentDidMount or useEffect method is called sending off the HTTP request.

The component is mounted to the DOM (webpage).

These methods are used because they are called immediately after the component is mounted to the DOM (Document Object Model). ReactDOM.render(, document.getElementById('app') ) Below is a class component: class ExampleComponent extends React.Component from 'react'Ĭonst = useState('') There two types of components: class and function. For a more comprehensive tutorial, you can visit the tutorial page. The sections below will be a brief introduction to ReactJS. ReactJS helps developers manage that kind of scenario with ease. However, if you are not signed in, rendering that view may not make sense. If you are signed in, the website may have a Products You Might Like section. Expanding on our example, let’s suppose the website is an e-commerce site. The state data may change user-to-user but the view remains the same. For example, when you sign into a website it may show your user profile (view) with your name (state). State refers to the data stored by different views that typically rely on who the user is, or what the user is doing. Views are what the user sees rendered in the browser. The ReactJS library is useful for handling the relationship between views, state, and changes in state.

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Soon we will learn how to use the RapidAPI dashboard to simplify our understanding of how these parts work together, but first, let’s talk about React! What is React?Ī JavaScript library for building user interfaces Most of the time API-keys need to be kept secret, however, some services will issue public API keys. Using RapidAPI allows the developer to only deal with one key (RapidAPI’s key), otherwise, developers would need to have API-keys for all of their APIs. Consequently, API providers will issue secret API-keys to monitor usage over time.

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Don’t worry, there are still plenty of free APIs.įurthermore, the hypothetical external API does not have unlimited resources, so letting software call the API an unlimited amount of times at no cost could render it useless. Having access to the API can be valuable, therefore, you may need to buy a subscription to use it.

API KeysĪs previously mentioned, external APIs offer data, services, or both. It is difficult to fathom how useful it is to have the capability to access external APIs for various data and services. These types of interactions are external from the local environment, and therefore, the APIs that are providing the data or services are called external APIs.

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PATCH: Update a record or data value at an endpoint.

GET: Used to request data from an endpoint.

You will notice that the types are matched to verbs that are similar to their function:

Next, let’s discuss the HTTP request types just mentioned.

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If you have written some code and it needs to communicate with code somewhere else, it will send an HTTP request over the internet. Different types of requests include GET, POST, DELETE, PATCH, etc. Using web APIs requires the use of HTTP requests. To be brief, it follows an architecture that uses predefined and stateless operations to access web resources. The most popular type of web API is a Representational state transfer API or RESTful API for short. RapidAPI is a platform for accessing web-based APIs. If you grant me the comparison: using an API depends on the API and what I am using it for. However, truthfully it depends on the type of stove and what they are using it for. Given a broad definition, asking a developer if they know how to use APIs is like asking a chef if they know to use the stove. …an API provides interactions between one software and another, but not users. There wasn’t enough context for me to figure out what kind of Application Programming Interface (API) she was talking about, and you can learn more about the various types of APIs here.Ĭonsider this, my favorite definition from the article linked above concerning different types of APIs is

How to fetch data from a GraphQL API in React?Ī client recently asked me, “Do you know how to use APIs?”.įrankly, I hesitated when answering because I thought,.

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