What are APIs in React JS?

API refers to Application Programming Interface and it is a mechanism that allows two software components to communicate with each other using a set of definitions and protocols. In addition, it acts as a communication layer and allows different systems to talk to each other. React uses various API calls to connect with external services to receive or send data. Using APIs allows React JS applications to interact with other systems and exchange information with them. To further know about these APIs., one can visit the React JS Course. Below are some popular built-ins React APIs and their uses.

· The createContext is useful for defining and providing context to the child components

· The forwardRef allows users to expose a DOM node as a ref to the parent.

· The lazy API allows you to defer loading a component’s code until it’s rendered for the first time.

· The memo API lets your component skip re-renders with the same props.

· The startTransition API helps you mark a state update as non-urgent.

How to integrate API in ReactJS?

Integrating an API in React.js, it is necessary to make the HTTP requests as per the API endpoints. In addition, you will have to handle the data received in your React components. Axios is a highly popular JavaScript library useful for making HTTP requests from web browsers and Node.js applications. Along with this, it provides support for various kinds of HTTP methods which makes it highly versatile for a wide range of applications. It offers various beneficial features, making Axios a preferred choice for many developers when integrating APIs into their applications. Many institutes provide React Certification training and enrolling in them will help you learn how to integrate API in React JS. Below are some steps regarding a common approach to using the ‘fetch’ API or a library to handle the HTTP requests.

· Set up your React project - Create a new React project using create-react-app or any other preferred method.

· Install Axios (optional) - Install Axios if you have chosen it for handling the HTTP requests.

· Create a component for API integration - Create a new component where you want to integrate the API.

· Import Axios (if using) - Import Axios at the beginning of your component file.

· Make the API request - Use the useEffect hook for making the API request.

· Use the component - Use the UserList component in your main application file.

Conclusion

APIs serve as a communication layer that enables interaction between various systems. React JS apps can communicate with and exchange data with other systems through the use of APIs. When integrating an API with React.js, HTTP requests must be sent by the API endpoints. Above are some significant steps that can help you integrate API in ReactJS.