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63 lines
1.8 KiB
C#

using MySqlConnector;
var builder = WebApplication.CreateBuilder(args);
string password = File.ReadAllText("/run/secrets/db-password");
string connectionString = $"server=db;user=root;database=example;port=3306;password={password}";
builder.Services.AddTransient<MySqlConnection>((_provider) => new MySqlConnection(connectionString));
var app = builder.Build();
app.MapGet("/", (MySqlConnection connection) => {
var titles = new List<string>();
try
{
Console.WriteLine("Connecting to MySQL...");
connection.Open();
string sql = "SELECT title FROM blog";
using var cmd = new MySqlCommand(sql, connection);
using MySqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
titles.Add(reader.GetString(0));
}
reader.Close();
}
catch (Exception ex)
{
return Results.Problem(detail: ex.ToString());
}
connection.Close();
return Results.Ok(titles);
});
Prepare(connectionString);
app.Run();
void Prepare(string connectionString)
{
using MySqlConnection connection = new MySqlConnection(connectionString);
connection.Open();
using var transation = connection.BeginTransaction();
using MySqlCommand cmd1 = new MySqlCommand("DROP TABLE IF EXISTS blog", connection, transation);
cmd1.ExecuteNonQuery();
using MySqlCommand cmd2 = new MySqlCommand("CREATE TABLE IF NOT EXISTS blog (id int NOT NULL AUTO_INCREMENT, title varchar(255), PRIMARY KEY (id))", connection, transation);
cmd2.ExecuteNonQuery();
for (int i = 0; i < 5; i++)
{
using MySqlCommand insertCommand = new MySqlCommand( $"INSERT INTO blog (title) VALUES ('Blog post #{i}');", connection, transation);
insertCommand.ExecuteNonQuery();
}
transation.Commit();
connection.Close();
}