How to extract a list from appsettings.json in .net core

Question

I have an appsettings.json file which looks like this:

{     "someSetting": {         "subSettings": [             "one",             "two",             "three"          ]     } } 

When I build my configuration root, and do something like config["someSetting:subSettings"] it returns null and the actual settings available are something like this:

config["someSettings:subSettings:0"]

Is there a better way of retrieving the contents of someSettings:subSettings as a list?

Answer 1

Assuming your appsettings.json looks like this:

{   "foo": {     "bar": [       "1",       "2",       "3"     ]   } } 

You can extract the list items like so:

Configuration.GetSection("foo:bar").Get<List<string>>()