how to inject a custom configuration section - Umbraco 9

Go to solution

Press Ctrl / CMD + C to copy this to your clipboard.

Copied to clipboard

Flag this post as spam?

This post will be reported to the moderators as potential spam to be looked at

AbsolutelyN 89 posts 437 karma points

Oct 22, 2021 @ 12:40
0

How to inject a custom configuration section?
Hi

Could anyone clarify how to create and inject your own configuration into a custom service via dependency injection please?

I'm registering a service and I need some configuration for an api key. I'm registering the service in a composer.
```
 builder.Services.AddSingleton<IMyService, MyService>();
```
Then the service needs some configuration passing into the constructor
```
 public MyService( IOptions<MyConfig> config)
```
Then I have config in appsettings.json
```
  "MyConfig": {
    "Username": "",
    "Password": "",
    "API": "",
    "Timeout": 6000
  },
```
How do you get dependency injection to pass in the config section?

I'm sure it's really obvious but complete .net core newbie.

Thanks
Copy Link
AbsolutelyN 89 posts 437 karma points

Oct 22, 2021 @ 12:55
0
I think I've figured it - missing registering the configuration class.
```
builder.Services.Configure<MyConfig>(builder.Config.GetSection("MyConfig"));
```
Copy Link
Kevin Jump 2342 posts 14889 karma points MVP 8x c-trib

Oct 22, 2021 @ 12:58
106
Hi,

if you have a class that represents your options.

eg.
```
public class MyConfigClass {
   public string Username {get;set }
   public string Password {get;set;}
   public string API {get;set;}
   public int TimeOut {get;set;} = 6000; 
}
```
You can register your options in a composer
```
var options = builder.Services.AddOptions<MyConfigClass>()
            .Bind(builder.Config.GetSection("MyConfig"));
```
"MyConfig" is the name of the section in appsettings.

then you should be able to inject this as an IOptions<MyConfigClass> into any services/controllers that need to read your settings

there are other options such as IMontorOptions that mean you don't have to restart to update options. Microsoft docs has a bit more on them,.

https://docs.microsoft.com/en-us/aspnet/core/fundamentals/configuration/options?view=aspnetcore-5.0
Copy Link
AbsolutelyN 89 posts 437 karma points

Oct 22, 2021 @ 13:10

0

Thank you Kevin - I did get it working just before you replied but will use your version. Hopefully the thread will help anyone else new to v9 not familiar with this. Much appreciated.

Copy Link
Thomas 319 posts 606 karma points c-trib

Nov 18, 2021 @ 10:37

0

How would yuo access data from the appsettings in razor view?

Have tried to Inject my custom Settings models but is not working..

Copy Link

Thomas 319 posts 606 karma points c-trib

Nov 18, 2021 @ 10:52

@inject Microsoft.Extensions.Options.IOptions<PlatformSettings> Options
@{
   var _platformSettings = Options.Value;
 }

Copy Link

is working on a reply...

Please Sign in or register to post replies

Flag this post as spam?

How to inject a custom configuration section?