Read json array from appsettings c#

Question

I have array in my appsettings.json

"steps": [
{
  "name": "IMPORT",
  "enabled": true
},
{
  "name": "IMPORT_XML",
  "enabled": true
},
{
  "name": "COMPARE",
  "enabled": true
},
{
  "test_name": "COMPARE_TABLE",
  "enabled": true
}]

In my class I am trying to retrieve it using IConfigurationRoot _configurationRoot

I've tried:

var procSteps = _configurationRoot.GetSection("steps");
foreach (IConfigurationSection section in procSteps.GetChildren())
{
    var key = section.GetValue<string>("test");
    var value = section.GetValue<string>("enabled");
}

and:

var procSteps = _configurationRoot.GetSection("ExecutionSteps")
            .GetChildren()
            .Select(x => x.Value)
            .ToArray();

But none of them retrieved me values of it. Does anyone know what's the case and what is the correct way to access values of such array?

Nkosi · Accepted Answer · 2021-03-30 13:06:39Z

9

Create an object model to hold the values

public class ProcessStep {
    public string name { get; set; }
    public bool enabled { get; set; }
}

Then get the array from the section using Get<T>

ProcessStep[] procSteps = _configurationRoot
    .GetSection("steps")
    .Get<ProcessStep[]>();

ASP.NET Core 1.1 and higher can use Get<T>, which works with entire sections. Get<T> can be more convenient than using Bind

Reference Configuration in ASP.NET Core: Bind to an object graph

edited Mar 30, 2021 at 13:06

answered Jul 24, 2018 at 13:21

Nkosi

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2 Comments

zameb Over a year ago

I get the error: "IConfiguration/IConfigurationSection does not contain a definition for Get"

Nkosi Over a year ago

@zameb you are most likely missing a using reference for the extension method.

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