add support for 'example_item_id' in config file

update example config file

src/bin/serving.rs

@@ -31,6 +31,7 @@ async fn main() -> std::io::Result<()> {
     let max_items_in_session = config.model.max_items_in_session;
     let qty_workers = config.server.num_workers;
     let enable_business_logic = config.logic.enable_business_logic;
+    let example_item_id = config.logic.example_item_id;
 
     let training_data_path = Path::new(&config.data.training_data_path);
     let vmis_index = if training_data_path.is_dir() {
@@ -69,6 +70,7 @@ async fn main() -> std::io::Result<()> {
             qty_workers,
             db_compaction_ttl_in_secs: session_ttl.as_secs() as usize,
             enable_business_logic,
+            example_item_id,
         };
 
         App::new()

src/config.rs

@@ -51,6 +51,7 @@ pub struct ModelConfig {
 
 pub struct LogicConfig {
     pub enable_business_logic: bool,
+    pub example_item_id: usize,
 }
 
 pub struct HyperparamConfig {
@@ -191,6 +192,11 @@ impl LogicConfig {
                 .trim()
                 .value()
                 .unwrap(),
+            example_item_id: conf
+                .get(path.push("example_item_id"))
+                .trim()
+                .value()
+                .unwrap_or(0),
         }
     }
 }

src/dataframeutils.rs

@@ -18,6 +18,7 @@ pub struct SharedHandlesAndConfig {
     pub qty_workers: usize,
     pub db_compaction_ttl_in_secs: usize,
     pub enable_business_logic: bool,
+    pub example_item_id: usize,
 }
 
 pub struct TrainingDataStats {

src/endpoints/index_resource.rs

@@ -81,7 +81,9 @@ pub async fn internal(config: Data<SharedHandlesAndConfig>) -> HttpResponse {
     html.push_str(&config.max_items_in_session.to_string());
     html.push_str("<br />Qty items to recommend: ");
     html.push_str(&config.num_items_to_recommend.to_string());
-    html.push_str("<br /><a href=\"/v1/recommend?session_id=144&user_consent=true&item_id=1001004010971015\">v1 endpoint of our model</a>");
+    html.push_str("<br /><a href=\"/v1/recommend?session_id=144&user_consent=true&item_id=");
+    html.push_str(&config.example_item_id.to_string());
+    html.push_str("\">v1 endpoint of our model</a>");
     html.push_str("<h3>Machine instance</h3>");
     html.push_str("<br />Qty CPU's detected: ");
     html.push_str(&*sys_info::cpu_num().unwrap_or(0).to_string());