On an Asp.Net Core 3.1 application I have the following section on AppSettings:
"Logins": [
{
"Name": "Facebook",
"Id": "fb_id",
"Secret": "fb_secret"
},
{
"Name": "Google",
"Id": "go_id",
"Secret": "go_secret"
}
]
I am trying to get values, such as Id of Facebook, so I tried:
Configuration.GetValue<String>("Logins:Facebook:Id")
But this won't work ... How can I get the values?
All ASP.NET Core configuration gets converted into key-value pairs. In your example, you end up with key-value pairs that looks like this:
Logins:0:Name = FacebookLogins:0:Id = fb_idLogins:0:Secret = fb_secretLogins:1:Name = GoogleLogins:1:Id = go_idLogins:1:Secret = go_secretAs this shows, there's no key named Logins:Facebook:Id, which is because the JSON structure uses an array. If you want to target the providers by name, update the JSON to use the following structure:
"Logins": {
"Facebook": {
"Id": "fb_id",
"Secret": "fb_secret"
},
"Google": {
"Id": "go_id",
"Secret": "go_secret"
}
}
This creates the key-value pairs that you expect, e.g.:
Logins:Facebook:Id = fb_idLogins:Facebook:Secret = fb_secretAlso, because these values are already strings, you can, if you prefer, just use something like this to read the value:
Configuration["Logins:Facebook:Id"]
LoginsandFacebookare sections. Instead of reading strings, why not read the entireFacebookobject though? Or read the entire array at once? You could use egGetorBindto load strongly-typed objects on startup, register with DI and inject them as neededConfigurrattion.GetSection("Logins").Get<MyLogin[]>()to load the entire array