rm-ventas/backend/src/Ventas.API/Controllers/TarifaController.cs

using Dapper;
using Npgsql;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace Ventas.API.Controllers;

[ApiController]
[Route("api/[controller]")]
[Authorize]
public class TarifaController : ControllerBase
{
    private readonly string _connectionString;

    public TarifaController(IConfiguration configuration) => _connectionString = configuration.GetConnectionString("Default")!;

    [HttpGet]
    public async Task<IActionResult> Buscar([FromQuery] int producto, [FromQuery] int programa, [FromQuery] int jornada, [FromQuery] int sede, [FromQuery] string fecha)
    {
        using var connection = new NpgsqlConnection(_connectionString);
        var rows = await connection.QueryAsync("sige_sam_v3.BuscarTarifa",
            new { producto, programa, jornada, sede, fecha },
            commandType: System.Data.CommandType.StoredProcedure);
        return Ok(rows.Select(r => (Dictionary<string, object>)(IDictionary<string, object>)r!));
    }

    [HttpGet("promocion")]
    public async Task<IActionResult> Promocion([FromQuery] int tarifaId, [FromQuery] int cantidadCursos)
    {
        using var connection = new NpgsqlConnection(_connectionString);
        var rows = await connection.QueryAsync("sige_sam_v3.BuscarTarifaPromocion",
            new { tarifa = tarifaId, cantcursos = cantidadCursos },
            commandType: System.Data.CommandType.StoredProcedure);
        return Ok(rows.Select(r => (Dictionary<string, object>)(IDictionary<string, object>)r!));
    }
}