Do some feng shui programming and move all api code into a new api namespace

src/api/endpoints/mod.rs

@@ -0,0 +1,12 @@
+pub mod stats;
+pub mod worlds;
+use crate::collectors::PromMetric;
+
+fn convert_into_prom_metrics(data: Vec<impl PromMetric>) -> String {
+    let metrics: Vec<String> = data
+        .into_iter()
+        .map(|w| w.to_metric_string())
+        .collect();
+
+    metrics.join("\n")
+}

src/api/endpoints/stats.rs

@@ -0,0 +1,14 @@
+use axum::extract::Path;
+use axum::http::StatusCode;
+use axum::response::IntoResponse;
+use crate::collectors::stats::get_player_stats;
+use super::convert_into_prom_metrics;
+
+pub async fn get_stats(Path(rsn): Path<String>) -> impl IntoResponse {
+    let resp = match get_player_stats(&rsn).await {
+        Ok(r) => r,
+        Err(_) => return (StatusCode::INTERNAL_SERVER_ERROR, "Nope".to_string())
+    };
+
+    (StatusCode::OK, convert_into_prom_metrics(resp))
+}

src/api/endpoints/worlds.rs

@@ -0,0 +1,13 @@
+use axum::http::StatusCode;
+use axum::response::IntoResponse;
+use crate::collectors::player_count::get_player_count;
+use super::convert_into_prom_metrics;
+
+pub async fn get_worlds() -> impl IntoResponse {
+    let resp = match get_player_count().await {
+        Ok(r) => r,
+        Err(_) => return (StatusCode::INTERNAL_SERVER_ERROR, "Nope".to_string())
+    };
+
+    (StatusCode::OK, convert_into_prom_metrics(resp))
+}

src/api/mod.rs

@@ -0,0 +1 @@
+pub mod endpoints;