FoodRest.ProductsApi

1.WebApi

Basic APIs

• Get a list of all products posted in the repository

 //GET api/items
[ HttpGet ]
public IEnumerable < Item > Get ( ) => itemRepository . Items . ToList ( ) ;

• Receive a product by unique identifier

Get(Guid id) { var item = itemRepository.Items.First(g => g.Id == id); if (item != null) return item; return BadRequest(); }">

 //GET api/items/F74349D5-52B4-4A4A-0382-08DA02C684C5
[ HttpGet ( "{id:guid}" ) ]
 public ActionResult < Item > Get ( Guid id )
{
  var item = itemRepository . Items . First ( g => g . Id == id ) ;
  if ( item != null )
    return item ;
  return BadRequest ( ) ;
}

• Receive 15 products depending on the specified page

Get(int productPage)=>itemRepository.Items .Skip((productPage - 1) * PageSize) .Take(PageSize);">

 //GET api/items/take/2
[ HttpGet ( "take/{productPage:int}" ) ]
public IEnumerable < Item > Get ( int productPage ) => itemRepository . Items
  . Skip ( ( productPage - 1 ) * PageSize )
  . Take ( PageSize ) ;

• Add a new or change an existing product

> Post(Item item) { try { if (item == null) { return BadRequest(); } var repitem = itemRepository.Items.FirstOrDefault(i => i.Id == item.Id); if (repitem != null) { repitem.Description = item.Description; repitem.Category = item.Category; repitem.Price = item.Price; repitem.Name = item.Name; repitem.addedTime = item.addedTime; itemRepository.SaveItem(repitem); } itemRepository.SaveItem(item); return Ok(); } catch (Exception ex) { return StatusCode(StatusCodes.Status500InternalServerError, "Error retrieving data from the database"); } }">

 //POST api/items/add/{item}
[ HttpPost ( "add" ) ]
public async Task < ActionResult < Item > > Post ( Item item )
{
  try
  {
    if ( item == null )
    {
      return BadRequest ( ) ;
    }
    var repitem = itemRepository . Items . FirstOrDefault ( i => i . Id == item . Id ) ;
    if ( repitem != null )
    {
      repitem . Description = item . Description ;
      repitem . Category = item . Category ;
      repitem . Price = item . Price ;
      repitem . Name = item . Name ;
      repitem . addedTime = item . addedTime ;
      itemRepository . SaveItem ( repitem ) ;
    }
    itemRepository . SaveItem ( item ) ;
    return Ok ( ) ;
  }
  catch ( Exception ex )
  {
    return StatusCode ( StatusCodes . Status500InternalServerError , "Error retrieving data from the database" ) ;
  }
}

JWT Authentication

When a user authenticates, he is issued a JWT Token, which is valid for 30 minutes. It is sent in the request header. If the data in the token does not match, the server responds with 401 Not Authorized.