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Binding of files (IFormFile)?

Q: Binding of files (IFormFile)?

Short answer: Used for file uploads from forms (not [FromBody]): public IActionResult Upload(IFormFile file) Example code { var path = Path.Combine("uploads", file.FileName); using var stream = new FileStream(path, FileMode.Create); file.CopyTo(stream); } 📝 For multiple files: List files Configuration & AppSettings Real-world example (ShopNest) ShopNest registers AppDbContext as Scoped and IMemoryCache as Singleton. Putting DbContext in a Singleton causes threading bugs. Say this in the interview Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.

Short answer: Used for file uploads from forms (not [FromBody]): public IActionResult Upload(IFormFile file)

Example code

{
var path = Path.Combine("uploads", file.FileName);
using var stream = new FileStream(path, FileMode.Create); file.CopyTo(stream); } 📝 For multiple files: List<IFormFile> files Configuration & AppSettings

Real-world example (ShopNest)

ShopNest registers AppDbContext as Scoped and IMemoryCache as Singleton. Putting DbContext in a Singleton causes threading bugs.

Say this in the interview

Define — one clear sentence (the short answer above).
Example — relate it to a project like ShopNest or your real work.
Trade-off — when you would not use it.

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