From fec6a4ade33301395c16dcb13ac1b34d0e411e3c Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Mon, 7 Nov 2022 16:39:47 +0100
Subject: Add simple example using lazy_static

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
---
 examples/static_env.rs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 examples/static_env.rs

diff --git a/examples/static_env.rs b/examples/static_env.rs
new file mode 100644
index 0000000..ba3222f
--- /dev/null
+++ b/examples/static_env.rs
@@ -0,0 +1,20 @@
+use config::Config;
+
+lazy_static::lazy_static! {
+    #[derive(Debug)]
+    pub static ref CONFIG: Config = Config::builder()
+        .add_source(config::Environment::with_prefix("APP_NAME").separator("_"))
+        .build()
+        .unwrap();
+}
+
+/// Get a configuration value from the static configuration object
+pub fn get<'a, T: serde::Deserialize<'a>>(key: &str) -> T {
+    // You shouldn't probably do it like that and actually handle that error that might happen
+    // here, but for the sake of simplicity, we do it like this here
+    CONFIG.get::<T>(key).unwrap()
+}
+
+fn main() {
+    println!("{:?}", get::<String>("foo"));
+}
-- 
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