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e-commerce Key Features
e-commerce Examples and Code Snippets
Lines of Code : 255
License : No License
Copy@Slf4j
@Getter
@Setter
@Builder
@AllArgsConstructor
public class Product {
private static final int DAYS_UNTIL_EXPIRATION_WHEN_DISCOUNT_ACTIVE = 4;
private static final double DISCOUNT_RATE = 0.2;
@NonNull private final ProductDao produ Community Discussions
Trending Discussions on e-commerce
QUESTION
I am working on e-commerce app using ejs template and nodejs as backend . In that I have admin role for administrative work . I create Bootstrap modal for update the order status . But I am able to only update the first order , if I try to any other order only first order gets update . Can anyone please help me to sort out this problem .
allOrders.ejs (list of orders & modal)
...ANSWER
Answered 2021-Jun-15 at 07:47The problem exists inside the for loop. In your loop you have a button with an attribute data-bs-target="#exampleModal". That means all rows in your table will have the same button which triggers the modal with id exampleModal. All these button will call the same modal.
Apart from this, each order generates a modal with a specific id exampleModal. So all modals have the same id. That's why you always open the first modal. Each modal must have a unique id
To fix this problem, you should give unique ids to modals, for example
QUESTION
I am new to Selenium and I am trying to loop through all links and go to the product page and extract data from every product page. This is my code:
...ANSWER
Answered 2021-Jun-13 at 15:09I wrote some code that loops through each item on the page, grabs the title and price of the item, then does the same looping through each page. My final working code is like this:
QUESTION
I'm working on a feature that retrieves a list of products from some E-commerce API. I'm trying to add an ability to request specific fields from the products, removing the unnecessary fields.
This is the code:
...ANSWER
Answered 2021-Apr-29 at 14:06The problem here is that the compiler infers the type of prop to be keyof Product, which is a wide type corresponding to multiple possible strings. And while you understand that result[prop] = product[prop] should be fine because both refer to the same exact value named prop, the compiler only really sees the types of these things. It can't see the difference between that and result[prop2] = product[prop1] where prop2 and prop1 are both keyof T. You'd agree that such a line is a mistake unless you can constrain prop1 and prop2 to the very same literal key type.
This is a pain point in TypeScript; there is some discussion in microsoft/TypeScript#30769, the change made for TypeScript 3.5 responsible for this checking... it improved soundness, but at the expense of adding some false positives like this. The specific problem with copying properties is an open issue at microsoft/TypeScript#32693. This comment implies that the TS team is aware of the issue and think something should be done to support copying properties from one object to another. But who knows when or if this will actually happen. If you care you might want to go there and give it a 👍, but I doubt that will have much of an impact.
For now the way to proceed is probably to make the callback generic in K extends keyof Product and have prop be of type K:
QUESTION
I have a basic e-commerce app for practice. There's a functional component called "Shop" which has two states:
...ANSWER
Answered 2021-Jun-08 at 07:51Memoize addProductHandler with React.useCallback so that the reference to it does not change between renders:
QUESTION
I would like to ask a question about a possible solution for an e-commerce database design in terms of scalability and flexibility.
We are going to use MongoDB and Node on the backend.
I included an image for you to see what we have so far. We currently have a Products table that can be used to add a product into the system. The interesting part is that we would like to be able to add different types of products to the system with varying attributes.
For example, in the admin management page, we could select a Clothes item where we should fill out a form with fields such as Height, Length, Size ... etc. The question is how could we model this way of structure in the database design?
What we were thinking of was creating tables such as ClothesProduct and many more and respectively connect the Products table to one of these. But we could have 100 different tables for the varying product types. We would like to add a product type dynamically from the admin management. Is this possible in Mongoose? Because creating all possible fields in the Products table is not efficient and it would hit us hard for the long-term.
Maybe we should just create separate tables for each unique product type and from the front-end, we would select one of them to display the correct form?
Could you please share your thoughts?
Thank you!
...ANSWER
Answered 2021-Jun-07 at 09:46We've got a mongoose backend that I've been working on since its inception about 3 years ago. Here some of my lessons:
Mongodb is noSQL: By linking all these objects by ID, it becomes very painful to find all products of "Shop A": You would have to make many queries before getting the list of products for a particular shop (shop -> brand category -> subCategory -> product). Consider nesting certain objects in other objects (e.g. subcategories inside categories, as they are semantically the same). This will save immense loading times.
Dynamically created product fields: We built a (now) big module that allows user to create their own databse keys & values, and assign them to different objects. In essence, it looks something like this:
QUESTION
really struggling to find the error where i missed. I am using Laravel (v8), Vue (v2) and Stripe(v3) for my e-commerce web-app. I implemented stripe in TEST mode successfully and it was working perfectly fine. And when I switched for live mode I am getting the following error: No such PaymentMethod: 'pm_1Yyl5xC4bpPAffpGV2p0ZL12'.
Front and backend scripts are as shown below.
...ANSWER
Answered 2021-Jun-07 at 02:45“No such...” errors are usually caused by either a mismatch in API keys (e.g. using a mixture of your test plus live keys) or by trying to access objects that exist on a different account (e.g. trying to perform an operation from your platform account on an object that was created on a connected account)
QUESTION
I have a project at school with an e-commerce website that I need a large number of images to complete. So I consulted the code to download images from Youtube: John Watson Rooney But I was having problem downloading half of the image Url changed to 'data:image/gif;base64,R0lGODdhFQAXAPAAANba3wAAACwAAAAAFQAXAAACFISPqcvtD6OctNqLs968+w+GolUAADs=' so I can't continue downloading.
...ANSWER
Answered 2021-May-23 at 07:33Those images are encoded as base64 strings so you don't need to download them, you can simply save them as follows:
QUESTION
I am new to react. Now I am Facing a problem. My app is running well(simple e-commerce). But the problem is When I am entering shipping address to checkout process it throws an error.
TypeError: Cannot read property 'address' of null.
I am using redux.So when I delete the existing address from browsers Localstorage it runs well.Error is here
Shipping Screen
...ANSWER
Answered 2021-May-11 at 09:45You have miss spelled
QUESTION
I need to store a companys product data (id, prices, color etc) for about 100 products and retrieve it from both an Android app and an IOS app. The apps will be used in 10 different countries with separate languages and pricing. About 10 000 to 50 000 users/month is expected. This is not an e-commerce or online shopping app but it should display prices to users. No customer data or order data is required for now.
The company employees should be able to update product prices (and perhaps other product info) easily, i.e. some ok interface or by replacing/uploading csv files. The company employees will not be able to add new products after app launch. Restricted access handling (read or RW permissions) is needed for security.
Could Firebase Cloud Firestore be a good solution for this? Or is it realistic to have a set of cloud hosted csv files, say one file (~11kb) for each language?
I would prefer to avoid setting up my own database, security, API and managing frontend.
Any guidance will be greatly appreciated!
...ANSWER
Answered 2021-May-30 at 22:08If you check out the firestore free tier you will notice that it is 50 000 reads per day. When you say up to 50 000 user per month you probably don't mean that they will be all at the same day on the app and every day. If you write your code clean and efficient you could manage to stay in the free tier.
Regarding the security you could mark some users as admins or use a role based system to ensure that only they can change the data. As I understood all other users are not authenticated but can ready data. For that I would recommend to use AppCheck. It ensures that only your Apps can access the data.
For the translations if you mean translations for each prouct name you can store the with the product document itself to reduce the amount of reads or in a subcollection of the product. Depending on your use case and need.
QUESTION
I have several forms "Login, Registration, Create a product..." For these forms, I was handling errors with useState for the front end and for the back end with express-validator.
Everything worked perfectly, I received error messages as expected.
But now, I realize that none of these forms manage errors anymore. Since I set up my "axios.interceptors.response.use" to send the user back to the login page if he has a 403 status (This is my way of handling a token that expires).
Here is my code that NORMALLY shows me the errors : (For example, this is my login page where I only get one error message)
...ANSWER
Answered 2021-May-30 at 08:47You've missed one thing, to return the error from axios response interceptor when error.response.status is not 403
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