Certainly! Here's a list of React Query features and a brief explanation of each with real-life scenarios:
1. Cache: React Query provides automatic caching of API responses. This means that subsequent requests for the same data will be served from the cache instead of making a new network request, improving performance and reducing unnecessary API calls.
Real-life scenario: Suppose you have a social media app where users can view posts. When a user navigates between different posts, React Query's cache will store the post data locally. If the user goes back to a previously visited post, the data will be fetched from the cache, resulting in faster navigation and reducing server load.
2. Time: React Query allows you to set a time interval for refreshing data automatically. This is useful for keeping data up-to-date without manual user interaction.
Real-life scenario: In a real-time chat application, you can use React Query to automatically refresh the chat messages every few seconds, ensuring that users see the latest messages without having to manually refresh the page.
3. Refetch default: React Query provides a built-in mechanism for refetching data automatically when certain conditions are met, such as when the component mounts or when the underlying data changes.
Real-life scenario: Imagine a weather app that displays the current weather conditions. With React Query's refetch default feature, you can set the data to automatically refresh every 15 minutes, ensuring that users always see the most up-to-date weather information without needing to manually refresh the page.
4. Polling: React Query allows you to set up polling, where data is fetched at regular intervals to keep it up-to-date.
Real-life scenario: Consider a stock market application that displays real-time stock prices. You can use React Query's polling feature to fetch the latest stock prices every 5 seconds, ensuring that users have the most recent information.
5. Use query on click: React Query provides a way to trigger a query when a specific event, such as a button click, occurs.
Real-life scenario: Suppose you have an e-commerce app with a "Load More" button at the bottom of a product list. By using React Query's use query on click feature, you can trigger a query to fetch the next set of products when the user clicks the button, dynamically loading more products without reloading the entire page.
6. Success and error callback: React Query allows you to define success and error callbacks that are executed when a query succeeds or encounters an error.
Real-life scenario: In a file upload feature of an application, you can define a success callback that shows a success message to the user when the file upload is successful. Similarly, an error callback can display an error message or perform error handling logic, such as displaying a notification or logging the error.
These are just a few examples of the capabilities of React Query. The remaining features you mentioned, such as transformation, custom query hooks, query by ID, dependent queries, pagination, infinite queries, mutations, query invalidation, handling mutation response, optimistic updates, and Axios interceptors, also have their own specific use cases and benefits in different real-life scenarios.