84 lines
3.1 KiB
C#
84 lines
3.1 KiB
C#
using System;
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using System.IO;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Routing;
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using Microsoft.Extensions.Primitives;
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using MySql.Data;
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using MySql.Data.MySqlClient;
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class Program
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{
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public static void Main(string[] args) => WebHost.CreateDefaultBuilder(args)
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.Configure(async app =>
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{
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app.UseRouting();
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string password = File.ReadAllText("/run/secrets/db-password");
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string connectionString = $"server=db;user=root;database=example;port=3306;password={password}";
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app.UseEndpoints(e =>
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{
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e.MapGet("/", context => {
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using MySqlConnection connection = new MySqlConnection(connectionString);
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var titles = new List<string>();
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try
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{
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Console.WriteLine("Connecting to MySQL...");
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connection.Open();
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string sql = "SELECT title FROM blog";
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using var cmd = new MySqlCommand(sql, connection);
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using MySqlDataReader reader = cmd.ExecuteReader();
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while (reader.Read())
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{
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titles.Add(reader.GetString(0));
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}
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reader.Close();
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}
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catch (Exception ex)
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{
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Console.WriteLine(ex.ToString());
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context.Response.StatusCode = 500;
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return Task.CompletedTask;
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}
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connection.Close();
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context.Response.StatusCode = 200;
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context.Response.WriteAsJsonAsync(titles);
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return Task.CompletedTask;
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});
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});
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Prepare(connectionString);
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}).Build().Run();
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private static void Prepare(string connectionString)
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{
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using MySqlConnection connection = new MySqlConnection(connectionString);
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connection.Open();
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using var transation = connection.BeginTransaction();
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using MySqlCommand cmd1 = new MySqlCommand("DROP TABLE IF EXISTS blog", connection, transation);
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cmd1.ExecuteNonQuery();
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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);
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cmd2.ExecuteNonQuery();
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for (int i = 0; i < 5; i++)
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{
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using MySqlCommand insertCommand = new MySqlCommand( $"INSERT INTO blog (title) VALUES ('Blog post #{i}');", connection, transation);
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insertCommand.ExecuteNonQuery();
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}
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transation.Commit();
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connection.Close();
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}
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} |