how or where async function in a web api controller can help me?

rajesh yadav

hi,

I just made one web API with core 9 with entity framework and all actions, i found that all the methods are made with a sync.

q1) so my question is where or how it can help me , because in my case i call my controllers action methods from java script in JavaScript i can can it in async or synchronous way, question came to my mind do i need async in the action methods of controller.

q2) and if i am not beneficial in above case then where i would be?

yours sincerely

4 Replies

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Muhammad Imran Ansari1y ago
Accepted answer
Use async in Web API when performing I/O operations. it improves performance, scalability, and responsiveness under load.

Q-1 Ans:

if your controller interacts with databases (like EF Core), external APIs, or file systems. Even though JavaScript can call your API asynchronously, using async on the server frees up threads during I/O operations, allowing more requests to be handled efficiently.

Q-2 Ans:
- High-traffic Web APIs: Handles more users without blocking threads.
- Long-running I/O tasks: like DB queries, API calls, or file access — improves responsiveness.
- Cloud/hosted apps (e.g., Azure App Service): Scales better under load with fewer resources.
- Apps with many concurrent operations: async prevents thread pool exhaustion and improves performance.
Good Luck!
0
Howher Michael1y ago
If you’re calling your controller methods from JavaScript, it usually makes sense to have async actions. Even if your JS can handle async or sync, making the controller async can help avoid blocking threads on the server when multiple requests come in.
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rajesh yadav1y ago
```
[HttpGet]

    public async Task>> GetDsp()

    {

        return await _context.Dsp.ToListAsync();

    }
```
thank u , is there any central configuration for a solution or project?

or i have to use as i have pased in above code.
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rajesh yadav1y ago
in my case i have called a method of controller from javacript and method returns one table. so kindly explain this senario how i am getting benefited by async method raher than sync method of the controller ?
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