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Publicly listed on BSE · ISO 27001 & SOC 2 Type II certified
Publicly listed on BSE · ISO 27001 & SOC 2 Type II certified
CASE STUDY
Laravel
jQuery
Node.js
Vue.js
MySQL
MongoDBWe not only had to ensure flawless uploads, but we also needed to ensure hassle-free downloads. Compressing large files is a problem, especially if they’re above 1.5 GB. Making them zippable and downloadable was even more difficult. It required extensive brainstorming to be able to enable that.
We also had to add an auction timer and a progress bar to display the time left for each auction and ensure the timer and progress bar worked in sync. Besides, our team needed to add custom code to reflect every real-time auction update.
We built the backend using Laravel because Laravel has excellent user authentication support - which is crucial for onboarding new sellers into the website. Laravel also helps with chunked media uploads, which involves breaking large images into small pieces and then gluing them together on the server side. Because of such reasons, we chose Laravel as the primary backend framework.
As for the website's frontend, we used jQuery as it works with multiple browsers. jQuery is also lightweight and needs fewer lines of code to develop the frontend.
Although we used Laravel and jQuery, we used Node.js and Vue in the comment section’s backend and frontend, respectively, as these techs support real-time communications.
Similarly, although we used MySQL as the site’s primary database, we installed MongoDB for the comment section only. We then hooked Socket.IO on MongoDB to reflect real-time user comments and data flow.
Once we completed working on the comment section, we worked on syncing the progress bar with the auction timer using Web Workers API. We also incorporated a Symfony downloader to help download large files.
In addition, our experts integrated a few more third parties. For example, we added Google Places API to search bidder locations for shipping cars and embedded the currency converter to convert CAD into USD and vice versa.
It was essential to secure all paid registrations and post-auction sales. So, we chose Stripe as the payment gateway.
We handled many such complex integrations, much to the client’s satisfaction. Once we quality-checked all elements in the staging, we finally made the system live on AWS. We stored all images in Amazon’s S3 bucket and handed all digital assets to the client at the end of the partnership.
We could develop an auction website with intuitive features that make online auctioning a breeze.
We made provisions to accommodate numerous sellers and potential buyers to register and place bids.
Because we made provisions for chunked uploads, sellers can upload hundreds of 10 MB or 15 MB car images for auction.
Because we used a Symfony stream downloader, the client can download large zipped files as big as 2 GB.
500+ client reviews reflect the engineering depth, responsive communication, transparent project management, and reliable delivery clients value.
Client Story"Capital Numbers provides a high level of customer service and support."
Katherine Mao
Co-Founder, Yeeo Inc.
"They are a well-structured team and that impressed us the most."
Will Hershfeld
Director of Web Services,, AdsIntelligence
"Capital Numbers is very easy to deal with, quick, and cost-effective."
Richard Harper
Director, Fifty Blue
"Capital Numbers provides a high level of customer service and support."
Katherine Mao
Co-Founder, Yeeo Inc.
"They are a well-structured team and that impressed us the most."
Will Hershfeld
Director of Web Services,, AdsIntelligence
"Capital Numbers is very easy to deal with, quick, and cost-effective."
Richard Harper
Director, Fifty Blue
Because we kept the comment section dynamic, every comment made by bidders and sellers gets reflected in real-time.
We created detailed boxes that record bidding summaries, highest bidders, etc., giving the client complete visibility of the bidding activities.
We developed a reserve auction section that helps sellers set a minimum reserve value that their vehicle will sell for.
We also created a no-reserve section wherein the seller sells his product to the highest bidder, regardless of any minimum bid.
Our engineers skillfully built an auction timer that resets to two minutes in case someone bids at the last 2-minute window, giving every bidder an equal opportunity.
Our Web Workers API integration helps the timer sync with the progress bar, alarming users of the auction time left.
The currency converter we added works well, seamlessly reflecting USD - CAD exchange rates.
Our Stripe installation helps process all auction payments reliably.
Our distance calculator plugin helps the client calculate distances in miles and quote delivery costs to the highest bidders.
We did most of these activities by making weekly client calls, often adapting to changes at short notice to speed up delivery.
Because of our hard work and timely website launch, the client:
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We offer a wide range of services, including:
We offer two distinct engagement models:
We have clients in various countries, including:
We have received numerous awards, including:
We were founded in 2012.
We are ISO 9001 and ISO 27001 certified, demonstrating quality and data security standards.
We create dynamic websites, e-commerce platforms, and manage content with user-friendly solutions.
We develop iOS & Android apps, cross-platform solutions, and provide ongoing maintenance.
We offer data integration, warehousing, visualization, and predictive analytics for data-driven decisions.
We offer AI-driven analytics, machine learning solutions, and generative AI applications for various needs.
Innovation, quality, client satisfaction, integrity, and teamwork are core values that guide our operations.
We aim to become a global leader in digital solutions, continuously innovating and empowering businesses with cutting-edge technology.