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Struggling with EFCore.BulkExtensions not inserting records? Discover the common pitfalls and learn how to properly implement `BulkInsertAsync` for optimal database performance.
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Why Your BulkInsertAsync Method Might Be Failing: A Deep Dive into EFCore.BulkExtensions

When working with Entity Framework Core and attempting to insert large batches of records into a database, you might encounter issues, particularly when using the BulkInsertAsync method from the EFCore.BulkExtensions library. This guide will explore a common problem many developers face—why the BulkInsertAsync method may not be inserting records as expected and how you can resolve it.

The Problem: BulkInsertAsync Not Inserting Records

Imagine you are tasked with inserting batches of up to 100,000 records into a database using the EFCore.BulkExtensions library. You decide to use the BulkInsertAsync method for its asynchronous capabilities, hoping to achieve better performance without blocking your application's main thread.

However, after running your code, you find that no records are inserted, even after waiting for an extended period. In contrast, the synchronous method BulkInsert works but is less than ideal due to its resource consumption. So, what’s going wrong?

Common Culprit: Awaiting the Asynchronous Call

The core of the issue lies in how asynchronous programming works in C# . When you call an asynchronous method, it's essential to await it. Without doing so, you may inadvertently exit the method that owns the task before it completes.

Here is the code snippet that is causing trouble:

[[See Video to Reveal this Text or Code Snippet]]

The above line will initiate the task to insert records, but because it is not awaited, the execution will continue, possibly leading to the disposal of resources or even closing the connection before the task can finish.

Solution: Properly Await the Asynchronous Method

To fix the problem, you should await the BulkInsertAsync method—this will ensure that the task completes before proceeding to the next steps in your code. Here’s how to modify your original code:

[[See Video to Reveal this Text or Code Snippet]]

Why Awaiting Matters

By correctly awaiting the BulkInsertAsync method, you are telling the application to pause execution until the insertion process is complete. This ensures that the possible abandonment of the asynchronous task does not happen. Here are a few key takeaways regarding async methods:

Async/Await Pattern: This pattern allows for writing asynchronous code that is easy to read and maintain. Always remember to use await with async methods if you need to ensure completion.

Task Lifecycle: By awaiting a task, you respect its lifecycle and avoid any unexpected behavior that may arise from exiting a method before the task completes.

Conclusion

If you’re facing issues with the BulkInsertAsync method not inserting records into your database, remember to check whether you are awaiting the method properly. This small but significant adjustment can mean the difference between a successful insertion and an abandoned task that leaves your database unchanged.

By being mindful of how asynchronous calls are managed within your application, you can leverage the full potential of the EFCore.BulkExtensions library and maintain optimal performance while handling large datasets.

Now, with this knowledge in hand, you should be able to dive into your code and implement the necessary changes for smooth database operations. Happy coding!