Explain the use of asynchronous database operations in .NET Core APIs.

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Aryan Kumar · Answer

Asynchronous database operations in .NET Core APIs are a way to perform database queries and updates in a non-blocking, asynchronous manner. These operations are essential for improving the performance and responsiveness of your API by preventing thread blocking, especially when dealing with I/O-bound tasks like database access. Here's an explanation of the use of asynchronous database operations in .NET Core APIs:
Async/Await Keywords:
.NET Core provides the async and await keywords to simplify asynchronous programming. The
async keyword is used to define asynchronous methods, while the 
await keyword is used to call asynchronous methods.
Performance and Responsiveness:
Asynchronous operations allow the API to continue processing other tasks while waiting for a database operation to complete. This improves the overall performance and responsiveness of your application, especially when handling a large number of concurrent requests.
IO-Bound Operations:
Database operations are typically I/O-bound tasks. These tasks involve waiting for data to be read from or written to the database. By using asynchronous operations, you can prevent thread blocking and utilize the CPU and thread pool efficiently.
Concurrency:
Asynchronous operations support better concurrency. They allow multiple requests to be processed concurrently, leading to improved throughput and reduced response times.
Async Database APIs:
.NET Core provides asynchronous database APIs, including Entity Framework Core's asynchronous methods, for common database operations like querying and updating data. These asynchronous methods are named with the "Async" suffix, such as
ToListAsyncAsync, SaveChangesAsync, and 
ExecuteReaderAsync.
Non-Blocking Execution:
When an asynchronous method is called using await, the current thread is not blocked. Instead, it's freed to handle other tasks while the asynchronous operation is in progress. When the awaited operation completes, the code following the
await is resumed.
Exception Handling:
Asynchronous code allows you to catch and handle exceptions more effectively. Exceptions thrown in asynchronous methods are not wrapped in
AggregateException like in parallel code.

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Explain the use of asynchronous database operations in .NET Core APIs.

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