feat: add filter on endpoint product by sub category

src/product/product-sub-categories.service.ts

@@ -1,5 +1,5 @@
 import { HttpException, HttpStatus, Injectable } from '@nestjs/common';
-import { EntityNotFoundError, Repository } from 'typeorm';
+import { EntityNotFoundError, In, Repository } from 'typeorm';
 import { ProductSubCategories } from './entities/product-sub-category.entity';
 import { InjectRepository } from '@nestjs/typeorm';
 import { CreateSubCategoriesProductDto } from './dto/sub-categories/create-sub-categories-product.dto';
@@ -45,13 +45,19 @@ export class ProductSubCategoriesService {
   }
 
   async findAll(page, category) {
+    let filterCategories = [];
+
+    if (category !== 'null') {
+      filterCategories = category.split(',').map((data) => data.trim());
+    }
+
     const baseQuery = this.productSubCategoriesRepository
       .createQueryBuilder('product_sub_categories')
       .leftJoinAndSelect('product_sub_categories.category', 'category');
 
-    if (category != 'null' && category) {
+    if (filterCategories.length > 0) {
       baseQuery.where({
-        category: category,
+        category: In(filterCategories),
       });
     }