Stripe & UPS Integration Fix

@a4logic

Hello, My name is Yasir and I'm from one of the leading web service providers in Pakistan. With a decade-long experience in web design and development, we have honed our skills essential for the successful completion of your project. Our expert team's proficiency in HTML, JavaScript, and PHP aligns perfectly with your demands on endless functionality to initiate, verify and process payments through Stripe efficiently. For instance, my previous work with a similar project involved creating an automated system using Stripe that allowed users to save and switch between multiple credit cards while ensuring PCI compliance at all times. This system also was designed for instant charging during checkout without any hassle of manual intervention. With the UPS-Shipping API integration part, I'll ensure an accurate calculation of rates for each active listing u as per your desired markup using seller and buyer's ZIP Code information. The clean code that we're known for will guarantee easy maintainability as you operate your Base44 site post-development. Let's partner together to turn your live marketplace into a seamlessly functioning business! Thanks!

@n2rtechnologies

Hello, I understand that your Base44-powered marketplace is live but requires essential functionality for payments and shipping. I can help ensure that your Stripe integration processes payments seamlessly and that your UPS shipping functionality operates smoothly. My experience in enhancing eCommerce platforms means I can address these issues efficiently. I’ve integrated the UPS Shipping API multiple times and can share a demo or code in chat to demonstrate my expertise. I will also ensure that the payment process with Stripe is user-friendly and reliable, enhancing the overall customer experience. Let’s work together to get your marketplace fully operational with the real-world functionality it needs. Regards, Nurul Hasan

@divumanocha

Hello, I can implement a secure and fully automated Stripe and UPS integration for your Base44 marketplace using Stripe Customer, PaymentMethod, SetupIntent, and Identity APIs to ensure every user adds and verifies a card during signup. I will configure automatic charging using PaymentIntents when an auction is won or Buy It Now is triggered, with no manual checkout required. Card replacement will be handled by securely attaching and verifying new PaymentMethods before activation. For shipping, I will integrate the UPS Rates API to calculate real-time quotes using seller-provided dimensions, apply the 25% markup, and reconfirm the final charge at checkout. The code will be clean, maintainable, and fully aligned with Stripe PCI compliance standards. **Questions:** 1. Are you currently using Stripe Connect for marketplace payments or standard Stripe accounts? 2. Do you also need automatic seller payouts and commission splitting? 3. Is the auction win logic already triggering backend events where the Stripe charge should be attached? Thanks Divu..

@extreamcode

Hi, Your Base44 marketplace demands a seamless, secure, and automated payment and shipping workflow to make your users’ experience flawless, that's exactly what I specialize in. I have extensive experience integrating Stripe's identity verification, auto-charging mechanisms, and card management within Node.js environments, ensuring PCI compliance by leveraging Stripe’s robust tools. I will build the user sign-up flow to require card saving with Stripe verification, automate billing upon auction wins and "Buy It Now" purchases, and enable secure card swapping with pre-activation verification. On the shipping front, I’ll integrate UPS API to calculate real-time shipping quotes based on seller inputs and buyer ZIP, applying your 25% markup accurately with a confirmation step at checkout. This will all be implemented in clean, well-commented Node.js and JavaScript to ensure your future maintenance is straightforward. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. Could you clarify if your marketplace currently has any existing payment or shipping modules that we need to integrate with, or will we be implementing these from scratch? Thanks, Asad

@seefattechnologi

I have extensive experience with similar PROJECT ---->>I am highly qualified to do this job with high QUALITY ----- I am Passionate STRIPE /PHP/Full stack developer having rich experience with so many successful Tasks. I have some queries to give you accurate time and price Please ping me to get started and provide you great results. Thanks

@Rekhathakur

Dear Client, Having successfully developed and delivered scalable full-stack systems, I'm confident in my ability to address the critical concerns of your project comprehensively. My extensive experience in Stripe integration, identity verification, automated payment processing, and card management are a perfect fit for your website's needs. As an expert in HTML, JavaScript, Node.js, and PHP, I possess the necessary skills to ensure your users can save their credit cards during sign up, get authenticated easily, pay with a one-click process or "Buy It Now" instantly—with no manual intervention needed. Ensuring users are able to swap their cards at any given point is also well within my abilities. In summary, my strong track record of delivering scalable solutions with clean code over 10 years make me an ideal candidate for your project. My priority lies not only complete this job but also provide you with value beyond just fixing these two areas—helping you build a secure platform guarded by PCI compliance standards and backed by Stripe’s built-in tools wherever possible!!! Thank you!!!

@DeveloperStation

Hi, We’ve developed multiple marketplaces with similar Stripe and UPS integrations, including auto-charging, card management, and shipping workflows. We understand the importance of PCI compliance and security, and we use Stripe’s built-in features to ensure your product is secure. For UPS, we’ve implemented dynamic shipping rates based on product dimensions and seller location, and we can add a markup as needed. We’re also strong in JavaScript and can handle any front-end work required. Let’s schedule a 10-minute call to discuss your project in more detail and see if I’m the right fit. I usually respond within 10 minutes. Best regards, Adil

@jayprakashyadav

Having been in the industry for over 15 years, I can confidently say I'm well-versed in the skills required to execute your project immaculately. As a WordPress expert, I understand the importance of clean and well-commented code - an aspect you specifically mentioned as crucial. During my career journey, I've executed various projects similar in complexity to yours which involved intricate API Integrations and handling critical data like card transactions, all while maintaining the highest security and PCI compliance standards - which I assure you won't be compromised. Moreover, my experience extends to various eCommerce platforms like WP-eCommerce and WooCommerce. This would bring added value to your project as it aligns with your need to ensure a smooth payment flow and real-time UPS rate calculations with a 25% uplift accurately reflected at checkout. To further reinforce my competencies, I can even provide you with links or samples from my previous comparable projects. In conclusion, choosing me for this project will not only grant you access to my extensive skill set but also guarantee a clean and efficient solution that will stand the test of time. Let's integrate Stripe and UPS API seamlessly, ensuring identity verification, auto-charges on wins, card replacements, accurate UPS calculations with the desired markup, all while prioritizing security; together we'll create a truly fine-tuned platform for your marketplace to thrive! Let's get started today! Thanks, Jay

@abhisaini0188

As a seasoned web and mobile application developer with over a decade of experience under my belt, I'm confident in my ability to bring your marketplace to life. I have remarkable skills and expertise in critical areas you specified for this project, including API integration and JavaScript, which is crucial for Stripe and UPS API integration work. My proficiency in Stripe will ensure new users are verified, automatic payments are executed flawlessly after auction wins, and card changes are validated before they become active. Over the years, I have honed my talents using diverse technology stacks, such as MEAN/MERN and PHP/Laravel, which align with the Node and Base44 tech stack of your site. My collaborative style is something you can count on throughout this project; I believe in open communication and welcoming client input to achieve desired outcomes. Finally, let me assure you that delivering clean, well-documented code is second nature to me— an essential attribute for any project since it allows for easy maintenance even after my involvement comes to an end. With regard to security and PCI compliance, I appreciate their vital role and will leave no stone unturned to ensure that your users' data remains completely safe. With Regards!

@ixorawebmob

Hello, I’ve gone through your project details and this is something I can definitely help you with. I have 10+ years of experience in mobile and web app development, including extensive work with payment processing and API integrations. I understand the critical functionalities you need for Stripe integration: ensuring users can save their credit cards during sign-up, implementing automatic charges on auction wins and 'Buy It Now' purchases, and allowing for seamless card replacement with verification. For the UPS API, I will create a streamlined process where sellers can specify shipping details, calculate quotes with markup based on user zip codes, and confirm rates during checkout. I prioritize clean, well-commented code for maintainability and will adhere to security and PCI compliance throughout. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m eager to discuss your project further and clarify: Could you clarify if you have specific timelines or additional features in mind for the integration process? Let’s connect over chat! Regards, Arpit

@waqaswebmaster

I can fix Stripe + UPS end-to-end in your Base44 marketplace with a flow that’s real-world, maintainable, and PCI-safe (no raw card handling—Stripe-hosted components only). Stripe (3 key requirements) Identity verification: use Stripe Identity verification during signup and gate selling/buying until verified. Auto-charge on auction win + Buy Now: save a PaymentMethod at signup (SetupIntent), attach to Customer, then charge automatically via PaymentIntent when a win event triggers (and same for Buy Now). Card replacement: “Update card” runs a new SetupIntent, sets it as default only after confirmation, and safely detaches the old one if needed. UPS Shipping + 25% uplift Sellers store origin ZIP + package weight/dimensions per listing. Listing page takes buyer ZIP → server calls UPS Rates API, computes rate from origin→destination, applies 25% markup, returns estimate. At checkout we re-rate server-side and lock the final amount before charging. Implementation notes Webhook-driven reliability (payment succeeded/failed, auction win, disputes) + idempotency keys Clean Node services (stripeService, upsService) + env-based config + clear comments Security: server-only API keys, strict validation, no PCI scope creep If you share how “auction win” is triggered in Base44 (event/cron/manual) and whether you’re using Stripe Connect for seller payouts, I can start immediately. Best regards, Waqas Ahmed

@technologiesit

As a certified WordPress and Shopify developer with over 10 years of experience, my team at Prajapati Technologies possesses the skills and expertise needed to tackle your Base44-powered marketplace project. We understand the significance of clean, well-documented code, and ensure its maintenance beyond delivery. My team has consistently upheld security and PCI compliance standards, strategically utilizing built-in tools like Stripe. Specifically, regarding the Stripe requirements for your platform, we have successfully implemented similar functionalities for different payment gateways across various projects. Sign-up verification, automatic charging upon winning an auction, instant charge for "Buy It Now," and card swapping have all been executed flawlessly by our team in the past. Finally, important to note is our proficiency with shipping APIs such as UPS. We have integrated such features in previous projects involving real-time shipping cost estimates weighted with markups similarly to your needs. Notably prioritizing personalized client satisfaction throughout our work, my team at Prajapati Technologies not only offers the technical capability but promises trustworthy execution of your vision. Let's connect soon to discuss your project in-depth and commence this collaboration that ensures a top-tier, user-friendly solution.

@rbtech1984

Hello There!!! ★★★★ ( Stripe & UPS Integration Fix ) ★★★★ I understand you need your Base44 marketplace fully operational with automated Stripe payments and dynamic UPS shipping calculations. The key requirements include automatic card charging for auctions and Buy It Now, identity verification for new cards, secure card updates, and accurate UPS rate calculations with a 25% markup. Services mentioned here based on project details ⚜ Stripe integration for identity verification on sign-up ⚜ Automatic charge flow for auctions and Buy It Now purchases ⚜ Card replacement and verification management ⚜ UPS API integration for shipping quotes ⚜ 25% markup applied to calculated shipping rates ⚜ Secure, PCI-compliant payment handling ⚜ Clean, maintainable Node.js and front-end code With 9+ years of experience in e-commerce and payment systems, I’ve implemented similar Stripe and shipping workflows. I’ll make sure your marketplace charges and delivers flawlessly, with security and reliability. Warm Regards, Farhin B.

@manpreetkaur991

Hello Greetings, After reviewing your project description, I am confident and excited to work on this project for you. However, I have some crucial points and questions to clarify. Please leave a message in the chat to discuss this, and I can share my recent work that is similar to your requirements. Thanks for your time! I am excited to hear from you soon. Best regards,

@maryam951

Hello, I am Maryam Abbas, a Node.js developer with over 4 years of experience. I have carefully reviewed your project requirements for integrating Stripe and UPS API into your Base44-powered marketplace. To ensure seamless functionality, I will implement Stripe's identity verification, auto-charge on auction wins, and card replacement features. Additionally, I will integrate UPS API for accurate shipping rate calculations with a 25% markup. I will ensure clean, well-commented code for easy maintenance and prioritize security and PCI compliance using Stripe's tools. I have a proven track record of successful projects and invite you to review my portfolio at https://www.freelancer.pk/u/maryam951 Let's discuss your project further. Best regards, Maryam Abbas

@wpcodersuk

Hi, I understand that your Base44 marketplace requires crucial functionality for payment processing and shipping to enhance user experience and compliance. To address the Stripe requirements, I would implement a streamlined flow where new users securely save their credit card during sign-up, incorporating Stripe’s identity verification tools. For automatic charges on auction wins as well as the "Buy It Now" option, I would utilize Stripe's API to facilitate seamless transactions without manual intervention. Additionally, allowing users to easily swap and verify their cards ensures flexibility and security. On the shipping side, I'll integrate the UPS API so that sellers can input weight and dimensions for accurate shipping quotes. When a buyer enters their ZIP code, the site would compute the estimated shipping cost with a 25% markup, and confirm the rate at checkout. I’m Muhammad Furqan, and my experience aligns well with these requirements. I’ve handled similar payment integrations and API functionalities in past projects, ensuring code is clean and maintainable. Looking forward to discussing how I can help bring your vision to life. Thank you, Muhammad Furqan

@intelliresponse

As a seasoned developer with over 13 years of experience under my belt, I can confidently tackle the complex Stripe and UPS API integration challenges your marketplace faces. My expertise in Python, which powers Base44, aligns perfectly with your codebase and technical requirements. When it comes to payment systems, I am no stranger to implementing Stripe's powerful identity verification and automatic charging features. I can ensure every user securely saves their credit card during sign-up, cards are charged promptly upon auction win or instant buy, all while allowing for seamless card swaps that undergo rigorous verification before activation. Considering my technical acumen leveraging API Integration, impeccable knowledge of HTML/CSS/JS, Python-based dev skills , deep experience with Implementing AI solutions/tools including web scraping and automation (which would contribute significantly to this project), I'm confident that I can successfully boost your platform's functionality as per your requirements & even beyond them! Let's get started today

@Tanmoy236

Hi! I specialize in payment and shipping integrations for marketplaces with 9+ years of experience building secure, automated Stripe flows and UPS API solutions. Here's how I can help: * Implement Stripe identity verification on user sign-up and ensure all cards are verified before activation * Automate charges for auction wins and “Buy It Now” purchases with no manual checkout * Enable users to swap cards securely, verifying new cards before making them active * Integrate UPS API to calculate shipping from seller to buyer ZIP, apply 25% markup, and confirm final charges at checkout * Deliver clean, maintainable, and PCI-compliant code with clear documentation Could you confirm if your Base44 setup already stores card tokens, or should the integration handle token creation from scratch?

@manojmalviya93

Hi, I have 9+ years of experience in Node based backend systems and payment integrations, with a strong focus on secure marketplace architecture and PCI compliant Stripe workflows. I have implemented similar auction and ecommerce flows and can integrate Stripe identity verification, enforce card on file at signup, automate charges on auction win and Buy It Now, handle secure card replacement, and build a UPS API rate calculation with 25 percent markup and checkout revalidation using clean maintainable code. I would be glad to share relevant marketplace work and discuss the technical execution plan in a short call. Regards, Manoj