[Feature Request] allow to override default name for environment variables about figment HOT 5 CLOSED

I'm not quite sure I follow the question. Can you give a concrete example of what you're doing now, what doesn't work with it, and what you'd like to do? Alternatively, consider looking at https://serde.rs/field-attrs.html. Maybe alias or rename are what you want?

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Hey sure I'll try. The config I use is looking something like

host = "localhost"
port = 9000
[remote-service]
api_key = "dev-key"
...

#[derive(Debug, Deserialize, Clone)]
struct Config {
host: String,
port: u16,
remote_service: RemoteServiceConfig,
}

#[derive(Debug, Deserialize, Clone)]
struct RemoteService {
api_key: String
}

in production the environment variable to set/override is FOO_API_KEY instead of REMOTE_SERVICE__API_KEY - for historical reasons.

Is there a way (that I don't know) to set the name of the environment variable to deserialize the nested api_key?

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I hope this is a bit clearer

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I finally got around to testing the serde route and it worked - would you mind me adding a bit of documentation to help future users of the library (a.k.a. me in a month).

from figment.

I finally got around to testing the serde route and it worked - would you mind me adding a bit of documentation to help future users of the library (a.k.a. me in a month).

Sure! What specifically might have helped you?

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