fluent-validation-function-example-2.cs

public class KeyResults
{
  private readonly WidgetDbContext _dbContext;
  private readonly FunctionWrapper<Widget> _functionWrapper;

  public Widgets(WidgetDbContext dbContext, FunctionWrapper<Widget> functionWrapper)
  {
    _dbContext = dbContext;
    _functionWrapper = functionWrapper;
  }

  [FunctionName("PostWidget")]
  public async Task<IActionResult> PostWidget(
    [HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "widgets")] Widget item, HttpRequest req, ILogger log)
  {
    return await _functionWrapper.Execute(req, item, async () =>
    {
      log.LogInformation($"posting widget: ${item.Id}");

      var newItem = await dbContext.Widgets.AddAsync(item);
      await dbContext.SaveChangesAsync();

      return new ResponseEnvelopeResult<Widget>(HttpStatusCode.Created, newItem.Entity);
    });
  }
}