[[oktatas:programozás:csharp:dotnetcore|< .Net Core]]

====== Konfiguráció ======

  * **Szerző:** Sallai András
  * Copyright (c) 2024, Sallai András
  * Szerkesztve: 2024
  * Licenc: [[https://creativecommons.org/licenses/by-sa/4.0/|CC BY-SA 4.0]]
  * Web: https://szit.hu

===== Függőség telepítése =====

  dotnet add package Microsoft.Extensions.Configuration.Json 


  dotnet add package Microsoft.Extensions.Configuration.Binder

===== Konfig =====

<code javascript appsettings.json>
{
    "egy": "kettő"
}
</code>


===== Beolvasás =====

<code csharp Program.cs>
using Microsoft.Extensions.Configuration;

var builder = new ConfigurationBuilder();
builder
    .SetBasePath(Directory.GetCurrentDirectory())
    .AddJsonFile("appsettings.json", false);			
var conf = builder.Build();			
var a = conf.GetValue<string>("egy");
Console.WriteLine(a);
Console.Read();
</code>


===== Felhasználók =====

<code javascript appsettings.json>
{
    "user": "janos",
    "pass": "titok"
}
</code>


<code csharp Program.cs>
using Microsoft.Extensions.Configuration;

var builder = new ConfigurationBuilder();
builder.SetBasePath(Directory.GetCurrentDirectory());
builder.AddJsonFile("appsettings.json", false);
var conf = builder.Build();
var user = conf.GetValue<string>("user");
var pass = conf.GetValue<string>("pass");

Console.WriteLine(user + ":" + pass);

</code>

===== Objektum =====

<code javascript appsettings.json>
{
    "database": {
        "user": "janos",
        "pass": "titok"
    }
}
</code>

<code csharp Program.cs>
using Microsoft.Extensions.Configuration;

var builder = new ConfigurationBuilder();
builder.SetBasePath(Directory.GetCurrentDirectory());
builder.AddJsonFile("appsettings.json", false);
var conf = builder.Build();
var user = conf.GetValue<string>("database:user");
var pass = conf.GetValue<string>("database:pass");

Console.WriteLine(user + ":" + pass);
</code>


===== Objektum másként =====

<code javascript appsettings.json>
{
    "database": {
        "user": "janos",
        "pass": "titok"
    }
}
</code>

<code csharp Program.cs>
using Microsoft.Extensions.Configuration;

var builder = new ConfigurationBuilder();
builder.SetBasePath(Directory.GetCurrentDirectory());
builder.AddJsonFile("appsettings.json", false);
var conf = builder.Build();
var user = conf.GetSection("database").GetValue<string>("user");
var pass = conf.GetSection("database").GetValue<string>("pass");

Console.WriteLine(user + ":" + pass);
</code>


===== Láncolva egyszerűbben =====

<code javascript config.json>
{
    "database": {
        "user": "janos",
        "pass": "titok"
    }
}
</code>

<code csharp Program.cs>
using Microsoft.Extensions.Configuration;

var conf = new ConfigurationBuilder()
    .SetBasePath(Directory.GetCurrentDirectory())
    .AddJsonFile("config.json")
    .Build();

var user = conf["database:user"];
var pass = conf["database:pass"];

Console.WriteLine(user + ":" + pass);

</code>