feat(routes): Add pagination to GET /product response

src/models/response/product.rs

@@ -58,3 +58,20 @@ impl TryFrom<entity::product::Model> for ProductResponse {
         })
     }
 }
+
+#[derive(Debug, Clone, PartialEq, serde::Serialize, utoipa::ToSchema)]
+#[schema(example = json!(
+    {
+        "total_page": 1, 
+        "current_page": 0, 
+        "products": [
+            { "id": "1a731f58-18f1-4c95-8de5-611bde07f4f1", "image": "2fa4c8d3-fd93-4066-a7f3-68a35ab72288_water.png", "name": "water", "price": 0.80, "quantity": 27, "creation_time": "2024-10-09T17:55:30.795279Z" }, 
+            { "id": "0a7e6dd2-2c98-44b1-9cd3-0d8a3d7666b3", "image": "377265f4-1aad-4b57-a6f2-4bb6387184c2_tea.png", "name": "tea", "price": 1.52, "quantity": 42, "creation_time": "2024-10-09T18:32:10.795279Z" }
+        ]
+    }
+))]
+pub struct ProductListResponse {
+    pub total_page: u64,
+    pub current_page: u64,
+    pub products: Vec<ProductResponse>,
+}

src/routes/product/get.rs

@@ -3,7 +3,9 @@
 use crate::{
     error::AppError,
     models::{
-        profile::admin::Admin, response::product::ProductResponse, utils::pagination::Pagination,
+        profile::admin::Admin,
+        response::product::{ProductListResponse, ProductResponse},
+        utils::pagination::Pagination,
     },
 };
 use axum::{
@@ -82,14 +84,14 @@ pub async fn get_product(
                 responses(
                    (status = 500, description = "An internal error, most likely related to the database, occurred."), 
                    (status = 400, description = "The request is improperly formatted."), 
-                   (status = 200, description = "Successfully retrieved a list of products.", body = Vec<ProductResponse>)
+                   (status = 200, description = "Successfully retrieved a list of products.", body = ProductListResponse)
                 )
             )]
 pub async fn get_all_products(
     admin: Option<Admin>,
     Query(pagination): Query<Pagination>,
     State(conn): State<Connection>,
-) -> Result<Json<Vec<ProductResponse>>, AppError> {
+) -> Result<Json<ProductListResponse>, AppError> {
     let page = pagination.page.unwrap_or(0);
     let per_page = pagination.per_page.unwrap_or(20);
 
@@ -100,11 +102,19 @@ pub async fn get_all_products(
     };
 
     let result =
-        service::Query::list_products_with_condition(&conn, condition, page, per_page).await?;
+        service::Query::list_products_with_condition(&conn, condition.clone(), page, per_page)
+            .await?;
 
-    let result = result
+    let total_page =
+        (service::Query::count_products_with_condition(&conn, condition).await? / per_page) + 1;
+
+    let products = result
         .into_iter()
         .map(|x| x.try_into())
         .collect::<Result<_, AppError>>()?;
-    Ok(Json(result))
+    Ok(Json(ProductListResponse {
+        current_page: page,
+        total_page,
+        products,
+    }))
 }

src/routes/utils/openapi.rs

@@ -47,7 +47,8 @@ use crate::routes::utils::upload::{FileSchema, __path_post_upload_files};
         schemas(FileSchema),
         schemas(NewProduct),
         schemas(EditProduct),
-        schemas(ProductResponse)
+        schemas(ProductResponse),
+        schemas(ProductListResponse)
     )
 )]
 struct ApiDoc;