Bind an IConfigurationSection to a complex object without ASP.NET Core

Question

I have a .NET Core console application and want to read the appsettings.json and parse a section as List<Param> (without Dependency Injection or ASP.NET Core).
I already tried How do I bind a multi level configuration object using IConfiguration in a .net Core application? but it seems like .Get<T>() got removed from netcoreapp1.1

IConfigurationSection myListConfigSection = configurationRoot.GetSection("ListA");

List<Param> paramList;

//Get does not exist
//paramList = myListConfigSection.Get<Param>();

string paramListJson = myListConfigSection.Value // is null
// won't work neither because paramListJson is null
paramList = JsonConvert.DeserializeObject<Param>(paramListJson);

appsettings.json:

{
  "ListA": [
    { "ID": "123", "Param": "ABC"},
    { "ID": "123", "Param": "JKS"},
    { "ID": "456", "Param": "DEF"}
  ]
}

Is there an easy way to load the config into the object or do I have to read the config file again and parse it myself with JsonConvert?

Duplicate: stackoverflow.com/questions/36694099/…

JohnB
– JohnB

2019-05-28 17:44:57 +00:00
Commented May 28, 2019 at 17:44 — JohnB
– JohnB, Commented May 28, 2019 at 17:44

Treziac · Accepted Answer · 2017-07-11 15:54:15Z

121

Get<T> is defined in package Microsoft.Extensions.Configuration.Binder

answered Jul 11, 2017 at 15:54

Treziac

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4 Comments

Maximilian Ast Over a year ago

Thanks, it did the trick. As much I love it, I sometimes hate that they switched everything to a different nkpg.

granadaCoder Over a year ago

#loveHate Yep,I'm always searching for and finding that "extra" nkpg.

Luke Over a year ago

This doesn't appear to be the same as GetSection as it appears to get the entire config file as an object.

Guillaume Over a year ago

You can use it an on IConfiguratoinSection and get just this section as an object

Jebarson Jebamony · Accepted Answer · 2024-12-03 01:58:00Z

0

Microsoft.Extensions.Configuration.Binder isnt really required as long as you are using primitive types to define the leaf properties. Once your type has collections such as List / IEnumerable, you will require Binder.

However, if your code defines a collection as array, it would work just fine without the need for Binder.

answered Dec 3, 2024 at 1:58

Jebarson Jebamony

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