Using One Request For Couple Url Endpoints - Angular

I will explain, I am trying to use getProducts (backend controller) for 3 pages in the website who uses resolver for displaying data, here are the options - http://localhost:4200/p

Solution 1:

You posted alot of code, for the next time please provide the minimal amount of code to reproduce the problem.

I changed the controller to check for gender and/or category and then use these values in the ProductDB.find() function.

UPDATED CONTROLLER

const getProducts = async (
  req: IgetProductsRequest,
  res: IgetProductsResponse
) => {
  ServerGlobal.getInstance().logger.info(
    `<getProducts>: Start processing request filtered by \
category ${req.params.category} and gender ${req.params.gender}`
  );

  if (!req.params.category && !req.params.gender) {
    res.status(400).send({
      success: false,
      message: "Please provide a category and/or gender",
    });
    return;    
  }

  const dbQueryParams = {};
 
  if (req.params.category) {
    if (!ServerGlobal.getInstance().isValidCategoryValue(+req.params.category!)) {
      ServerGlobal.getInstance().logger.error(`<getProducts>: Failed to get products because \
                                              of invalid category filtered by category ${req.params.category} \
                                              and gender ${req.params.gender}`);

      res.status(400).send({
        success: false,
        message: "Please provide valid category",
      });
      return;
    }
    dbQueryParams.category = +req.params.category!
  }

  if (req.params.gender) {
    if (!ServerGlobal.getInstance().isValidGenderValue(+req.params.gender!) {
      ServerGlobal.getInstance().logger.error(`<getProducts>: Failed to get products because \
                                              of invalid gender filtered by category ${req.params.category} \
                                              and gender ${req.params.gender}`);

      res.status(400).send({
        success: false,
        message: "Please provide valid gender",
      });
      return;
    }
    dbQueryParams.gender = +req.params.gender!
  }


  try {    
    const products = awaitProductDB.find(dbQueryParams);

    ServerGlobal.getInstance().logger.info(
      `<getProducts>: Successfully got the products filtered by \
      category ${req.params.category} and gender ${req.params.gender}`
    );

    res.status(200).send({
      success: true,
      message: "Successfully retrieved products",
      data: products.map((product) => ({
        id: product.idasstring,
        category: {
          value: product.category,
          label: ServerGlobal.getInstance().getCategoryLabel(product.category)!,
        },
        gender: {
          value: product.gender,
          label: ServerGlobal.getInstance().getGenderLabel(product.gender)!,
        },
        title: product.title,
        description: product.description,
        price: product.price,
        imageFilename: product.imageFilename,
      })),
    });
    return;
  } catch (e) {
    ServerGlobal.getInstance().logger.error(
      `<getProducts>: Failed to get products filtered by \
      category ${req.params.category} and gender ${req.params.gender} because of server error: ${e}`
    );

    res.status(500).send({
      success: false,
      message: "Server error",
    });
    return;
  }
};