Integration of HTML calculator and configurator with Shopify cart
35 USD We are looking for a specialist in Shopify (Liquid / JavaScript / HTML) to finalize an already completed project.
On the product page, we have already implemented a calculator and configurator (HTML + JS).
The user inputs parameters (for example, sizes), and the system calculates the cost.
It is necessary to complete the last and most important stage:
Task:
Link the calculator and configurator with the Shopify cart
Pass the correct product and calculated price to the cart
Pass the user-selected parameters (for example, sizes)
Ensure the order is correctly processed through Shopify checkout
What has already been done:
HTML calculator
JS calculation logic
configurator interface on the product page
What needs to be done:
correct data transmission to cart
adding product with custom parameters
correct display of data in the cart and checkout
Desired skills:
Shopify Liquid
Shopify Cart API / AJAX Cart
JavaScript
experience with custom configurator / calculator
Important:
The project is almost ready. Need help to complete the integration and correctly send data to the Shopify cart.
Client's review of cooperation with Oleksandr Gladchenko
Integration of HTML calculator and configurator with Shopify cartExcellent specialist. Alexander always responded with facts and offered alternative solutions when it was not possible to implement the task exactly as I initially wanted. He performed all requests and minor adjustments carefully and promptly. Overall, I am very satisfied with the work. Thank you very much!
Freelancer's review of cooperation with Alexandra Sirbu
Integration of HTML calculator and configurator with Shopify cartThe collaboration was satisfactory, and we plan to continue further in the future.
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4 days230 USD
2712 35 0 4 days230 USDGood day!
I can implement it.
Feel free to contact me, I will be happy to cooperate with you!
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1 day35 USD
314 1 day35 USDHello, write to me in private messages.
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1 day100 USD
309 1 day100 USDHello,
I’d be happy to help you finalize the integration of your calculator/configurator with the Shopify cart and checkout.
From your description, the main remaining task is connecting the existing HTML + JavaScript calculator to Shopify’s cart system so that the correct product, calculated price, and user-selected parameters (such as sizes) are passed and displayed properly during checkout. I have strong experience working with Shopify Liquid, AJAX Cart API, and custom JavaScript integrations, including projects where custom configurators or calculators dynamically modify product data before adding items to the cart.
For this task, I can:
- Connect your calculator output to the Shopify AJAX Cart API
… - Ensure the correct variant/product is added to the cart
- Pass custom properties (sizes, parameters, configuration values) using Shopify line item properties
- Make sure all selected parameters appear clearly in the cart and checkout
- Verify that the order processes correctly through Shopify Checkout
Clean up or optimize the existing JS logic if needed for reliable cart submission
Since your HTML calculator, JS logic, and configurator UI are already completed, the remaining integration should be straightforward. I can quickly review the current implementation and complete the cart connection so everything works smoothly.
If helpful, I can also:
Validate the price calculation before adding to cart
Ensure compatibility with Shopify themes and Liquid templates
Add safeguards so the configuration data is always preserved in orders
I’d be glad to take a look at the current code and finish the final integration step for you.
Best regards
-
1 day25 USD
859 11 0 1 day25 USDGood day
Custom Shopify development is my specialization
I can help with your task
I am currently available
I have experience with various configurators
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5 days50 USD
242 5 days50 USDGood day! I am ready to take on your project of integrating a custom JS calculator with the Shopify cart. I have practical experience working with the Shopify AJAX Cart API, Liquid, and JavaScript.
Before starting the work, I would like to clarify one point: how exactly do you plan to implement the transfer of the calculated price, considering Shopify's strict limitations on changing the price from the frontend (are you considering generating hidden variants / Draft Order)?
Since I am currently actively building my rating and portfolio on this platform, I am willing to complete this task for 50 USD on the condition of your detailed feedback after successful delivery. I would be happy to discuss the details in messages.
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