Two-way binding of an object to a Json file

[karmeye]

Is it possible to bind an object to a Json file, so that, in runtime, the object's values responds immediately to changes in the Json file?

[gfoidl]

There's no inbox-solution for this.

You could craft something for this based on file system watchers.

If your usecase is for configuration, etc. then the .NET config model provides IOptionsMonitor that keeps the values updated.

[karmeye]

Regarding IOptionsMonitor, that has to be used with Microsoft.Extensions.Configuration, right? I also need to programmatically write to the json file. As far as I know Microsoft.Extensions.Configuration does not allow you to do that, which is why I use System.Text.Json.

Thanks for the suggestion, I'll take a look at FileSystemWatcher Class.

[gfoidl]

Regarding IOptionsMonitor, that has to be used with Microsoft.Extensions.Configuration, right?

Yes.

write to the json file

Does a trivial approach (load into memory, use it, then write back to file once done) not work for you?
Kind of using the JSON file as database that way is very brittle -- sure that depends on the use-case (which is unknown to us).

[karmeye]

Does a trivial approach (load into memory, use it, then write back to file once done) not work for you?

You mean to use Microsoft.Extensions.Configuration and then use System.Text.Json to change the json file, even though it's managed by the former? I can do that, I just thought I was a bad citizen if I did, i.e., not following protocols (not sure why Microsoft.Extensions.Configuration doesn't have writing methods).

Kind of using the JSON file as database that way is very brittle -- sure that depends on the use-case (which is unknown to us).

It is for handling user settings and app state. (due to reasons, there are two processes that read the same json file).

Thx