C# ConfigurationBuilder Get JsonObject

Question

I have a Problem accessing the values of a JSON config file with the Configuration Builder My JSON Looks like that

{
  "item": [
    {
      "valueType": "taktzeit",
      "interval": 3
    },
    {
      "valueType": "werkzeugwechsel",
      "interval": 5
    }
  ]
}

Update It is in a folder called Config --> Config/config.json . I set the property, so the file is in the build folder

My Code:

var a = builder.AddJsonFile(Globals.ConfigPath).Build()
                .GetSection("item").GetChildren().ToList().Select(x => x.Value).ToList();

This is what I get when I loop through "a"'

Don´t see what I am missing. Thanks in advance

Update 2

My Model:

public class Config
{
        public List<Item> Item { get; set; }
}

public class Item
{
    public string ValueType { get; set; }
    public int Interval { get; set; }
}

what is the name of the Jason file in project ? Is it appsettings.json file ? — Saif
– Saif, Commented Nov 19, 2019 at 15:19
No, its a file in a folder: Config/config.json. I already set the file to be in the build. If I use....GetSection("item:0:valuteTyp").. I get whats inside the file. But I need it in a more generic way — Christian
– Christian, Commented Nov 19, 2019 at 15:26
Can we see the class that this is deserializing to? It seems you have "x.Value" in your LINQ, but "valueType" in your JSON. — Larry
– Larry, Commented Nov 19, 2019 at 15:26
try this var a = builder.AddJsonFile(Globals.ConfigPath).Build() .GetSection("item").Get<List<Item>>(); see if it return list f Item — Saif
– Saif, Commented Nov 19, 2019 at 15:43

Saif · Accepted Answer · 2019-11-19 15:50:52Z

2

Change This

var a = builder.AddJsonFile(Globals.ConfigPath).Build()
            .GetSection("item").GetChildren().ToList().Select(x => x.Value).ToList();

to

var a = builder.AddJsonFile(Globals.ConfigPath).Build()
            .GetSection("item").Get<List<Item>>();

this will result list of Item

answered Nov 19, 2019 at 15:50

Saif

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Nkosi · Accepted Answer · 2019-11-19 15:48:21Z

0

Assuming all else is already configured, simply bind to the desired object graph.

IConfiguration configuration = new ConfigurationBuilder()
                                    .AddJsonFile(Globals.ConfigPath)
                                    .Build();

Config config = configuration.Get<Config>();

Reference Configuration in ASP.NET Core

answered Nov 19, 2019 at 15:48

Nkosi

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