auth0-integration 0.6.1

Auth0 client library for M2M token retrieval and JWT validation (RS256)
Documentation 
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use crate::error::AppError;
use std::env;

#[derive(Debug, Clone)]
pub struct Auth0Config {
    pub auth0_domain: String,
    pub auth0_audience: String,
    pub auth0_client_id: String,
    pub auth0_client_secret: String,
}

impl Auth0Config {
    pub fn from_env() -> Result<Self, AppError> {
        Ok(Self {
            auth0_domain: require_env("AUTH0_DOMAIN")?,
            auth0_audience: require_env("AUTH0_AUDIENCE")?,
            auth0_client_id: require_env("AUTH0_CLIENT_ID")?,
            auth0_client_secret: require_env("AUTH0_CLIENT_SECRET")?,
        })
    }

    pub fn auth0_issuer(&self) -> String {
        format!("https://{}/", self.auth0_domain)
    }

    pub fn auth0_jwks_uri(&self) -> String {
        format!("https://{}/.well-known/jwks.json", self.auth0_domain)
    }

    pub fn auth0_token_url(&self) -> String {
        format!("https://{}/oauth/token", self.auth0_domain)
    }
}

fn require_env(key: &str) -> Result<String, AppError> {
    env::var(key).map_err(|_| AppError::Config(format!("Missing required env var: {key}")))
}