How to get fn_index?

[1654366772]

Recently, I am working on a project that does not use webUI. I found that there is usually a fn_index parameter when connecting to websocket. I would like to know how to get this parameter

[1654366772]

After I checked the article and debug, I found that fn_index is the index of the component. Find the component you clicked on the web page, it will have an id, remember it will be used later, use api /config to get the webui configuration file (JSON format), once you get the configuration file, write a script to go through the dependencies properties, such as: dependencies.findIndex(item => item.targets[0] == id);

The index I got is fn_index, but now there is a new question, how do I form the id of the component, because I tried, when I randomly assigned to fn_index, there is a problem

[July250229]

I'm also interested in this question. I tried to build an API for my application. But I can't find where the fn_index comes from. If the fn_index is not correct, the API won't work. I will try to find it out and share with you.

[1654366772]

The id corresponds to the id of the element, which we can use to find the corresponding element in the dependencies list. The index of the element is fn_index, but the problem is that when you restart the service, this id will change

[chenshaokang]

Is there a conclusion to this question? I also want to get fn_ index.But I don't know how to get it?