Yianni
Yianni
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CC#
Created by Yianni on 11/16/2023 in #help
EFCore: don't require primary key for POST
Howdy, forgive me if I don't have the terminology down yet, I just started following this guide recently: https://learn.microsoft.com/en-us/aspnet/core/tutorials/first-web-api?view=aspnetcore-8.0&preserve-view=true&tabs=visual-studio So I've created a Model: 
c#
  public class User
  {
      [Key]
      public required string Guid { get; set; }

      [Required]
      public required string Name { get; set; }

      [Required]
      public required string Tag { get; set; }

      public DateTime LastUpdate { get; set; }
  }
c#
  public class User
  {
      [Key]
      public required string Guid { get; set; }

      [Required]
      public required string Name { get; set; }

      [Required]
      public required string Tag { get; set; }

      public DateTime LastUpdate { get; set; }
  }
And here's my code for the Controller. Note that I am assigning the primary key within this method. 
c#
[HttpPost]
public async Task<ActionResult<User>> PostUser(User user)
{
  User newUser = new User()
  {
      Guid = Guid.NewGuid().ToString(),
      Name = name,
      Tag = tag,
      LastUpdate = DateTime.Now
  };
  
  _context.Users.Add(newUser);
  return CreatedAtAction(nameof(GetUsers), user);
}
c#
[HttpPost]
public async Task<ActionResult<User>> PostUser(User user)
{
  User newUser = new User()
  {
      Guid = Guid.NewGuid().ToString(),
      Name = name,
      Tag = tag,
      LastUpdate = DateTime.Now
  };
  
  _context.Users.Add(newUser);
  return CreatedAtAction(nameof(GetUsers), user);
}
My problem is that I do not want the primary key (Guid) to be required in the request body to send the POST request. Is there any way around this? I just want my POST request body to look like the following example: 
{
  "Name": "Jimbo",
  "Tag": 12345
}
{
  "Name": "Jimbo",
  "Tag": 12345
}
Omitting the Guid from this results in the following error: "JSON deserialization for type 'api.Models.User' was missing required properties, including the following: guid"
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