Foreground events are state change events that occur when the user interacts with any graphical user interface, such as in a website or mobile app. These events require direct user interactions with applications. The following code is related to state changes when we add a new product to the product catalog list for an e-commerce website.

From the following code, we can verify that whenever there is a product catalog modification request that comes through the HTTP PUT operation in a website, there is a foreground event that is emitted through an entity state change modification. Capturing and routing those events will help an enterprise to synchronize multiple connecting systems that are interested in a product catalog entity:

 [HttpPut("(id)")]
 public async Task<IActionResult> PutProductCatalogueItem(long id, ProductCatalogue Item)
 {
 if (id != Item.Id)
 { 
 return BadRequest();
 }
 _context.Entry(Item).State = EntityState.Modified;
 await _context.SaveChangesAsync();

 return NoContent();
 }