C#

<pre lang="c#">
public static string send_to_db(int uid, float prs, float btlvl, float f1, float f2, double t1, double t2, int dState, int supState, string datetime, string stmt)
    {
        MySqlConnection connection = null;
        string feedback = "";
        double min_prs_val = 0, max_prs_val = 0;

        // voltage to percentage the btlvl

        btlvl = (btlvl * 100) / 12;

        try
        {
            connection = new MySqlConnection(stmt);
            connection.Open();
            MySqlCommand insertData = new MySqlCommand($"INSERT INTO pm_data_records (pm_detail_id, pm_pressure, pm_battery_charge, pm_flow1, pm_flow2, pm_tot1, pm_tot2, pm_door, pm_sup, pm_sent_time) VALUES('{uid}','{prs}','{btlvl}','{f1}','{f2}','{t1}','{t2}','{dState}','{supState}','{datetime}')", connection);
            insertData.ExecuteNonQuery();
            MySqlCommand updateData = new MySqlCommand($"UPDATE pm_data_last SET pm_detail_id = '{uid}', pm_pressure = '{prs}', pm_battery_charge = '{btlvl}', pm_flow1 = '{f1}', pm_flow2 = '{f2}', pm_tot1 = '{t1}', pm_tot2 = '{t2}', pm_door = '{dState}', pm_sup = '{supState}', pm_sent_time = '{datetime}' WHERE pm_detail_id = '{uid}'", connection);
            updateData.ExecuteNonQuery();

            ...

OAuthAuthorizationServerOptions OAuthServerOptions = new OAuthAuthorizationServerOptions()
        {
            AllowInsecureHttp = true,
            TokenEndpointPath = new PathString("/token"),
            AccessTokenExpireTimeSpan = TimeSpan.FromMinutes(30),
            Provider = new SimpleAuthorizationServerProvider(),
            RefreshTokenProvider = new SimpleRefreshTokenProvider()
        };

public class SimpleAuthorizationServerProvider : OAuthAuthorizationServerProvider
    {
        private readonly IAuthService _authService;

        public SimpleAuthorizationServerProvider(IAuthService authService)
        {
            _authService = authService;
        }
     }