feat(backend) update (unfinished)

backend/server/src/modules/blog/api/get_post/mod.rs

@@ -0,0 +1,30 @@
+use axum::response::IntoResponse;
+use axum::{
+    extract::{Path, State},
+    Json,
+};
+use serde_json::json;
+use sqlx::PgPool;
+
+const GET_POST_BY_I64_ID: &str = include_str!("get_post_by_i64_id.sql");
+const GET_POST_BY_STR_ID: &str = include_str!("get_post_by_str_id.sql");
+
+pub async fn handler(
+    State(db_connection): State<PgPool>,
+    Path(identifier): Path<String>,
+) -> impl IntoResponse {
+    let post = if let Ok(id) = identifier.parse::<i64>() {
+        select_post_with_i64_id(&db_connection, id).await
+    } else {
+        select_post_with_str_id(&db_connection, &identifier).await
+    };
+    Json::from(json!({"res": "ok"})).into_response()
+}
+
+async fn select_post_with_i64_id(db: &PgPool, id: i64) {
+    todo!()
+}
+
+async fn select_post_with_str_id(db: &PgPool, id: &str) {
+    todo!()
+}