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Job Title: Full-Stack Developer – API Integration (Stripe + InfoAgent) for Automotive Data Site Project Overview I am launching [login to view URL] on May 15 and require an expert developer to build the backend logic for a multi-tiered vehicle history report service. The system must capture user data, process payments via Stripe, fetch real-time automotive data via the InfoAgent API, and deliver a PDF report to the customer automatically. Key Technical Deliverables Lead Capture & Validation: Implement a frontend VIN/Rego lookup that captures the user’s email address prior to the payment gateway. Tiered Product Logic: Configure three product tiers (Basic, Premium, Gold) mapped to specific InfoAgent data endpoints (PPSR, NEVDIS, Stolen/Written-off status, and Valuations). Stripe Payment Integration: Setup Stripe Checkout with Webhook integration. The system must only trigger the InfoAgent API call after successful payment confirmation. API Integration (InfoAgent): Connect to InfoAgent REST API to pull vehicle data based on the selected tier. Handle error states (e.g., VIN not found) and ensure the user is not charged if data is unavailable. Automated Report Delivery: Convert raw JSON data from InfoAgent into a professionally branded PDF report. Integrate an email service provider (e.g., SendGrid or Mailgun) to send the report instantly upon completion. Required Experience Proven experience with Stripe API (Webhooks and Checkout sessions). Expertise in RESTful APIs and JSON data handling. Experience with PDF generation libraries (e.g., Puppeteer, PDFKit, or similar). Familiarity with Wix Velo (if staying on Wix) or standalone backend environments (Node.js/Python). Previous experience with automotive data or government registries (PPSR) is a major plus
Project ID: 40419550
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186 freelancers are bidding on average $484 AUD for this job

Hello, With over a decade of experience in the web development industry, our team at Our Software is well-equipped to tackle your full-stack integration project with ease and expertise. As an expert in JavaScript, PHP, and particularly familiar with APIs, we have accumulated considerable proficiency with the Stripe API, including its webhooks and checkout sessions, which are at the core of your envisioned system. Building on this technical foundation, we have hands-on experience integrating RESTful APIs like InfoAgent and harnessing their valuable data in JSON format - exactly what you need for your automotive data site. Moreover, our adeptness extends to dealing with possible error states and ensuring smooth transactions following payment confirmation. Not only do we possess extensive familiarity with PDF generation libraries such as Puppeteer and PDFKit, but our portfolio proudly showcases numerous successful projects involving delivering professionally branded PDF reports from raw data. Rest assured, we'll leverage this knowledge to promptly convert the vehicle data you obtain from InfoAgent into crisp and stylish PDF reports for your customers. Finally, though not explicitly mentioned in my profile, I don't want to undersell my ability to adapt and learn new technologies quickly if necessary. Whether it be implementing email service providers like SendGrid or Mailgun or creating efficient VIN/Rego lookups, know that I can ha Thanks!
$350 AUD in 4 days
8.6
8.6

Hi, You're building a seamless checkout experience for automotive data—Stripe handles payments, InfoAgent handles the data flow. Here's what matters: how are you handling real-time sync between payment confirmation and data delivery? That's where most integrations break. Let's talk details. Best Regards, Hasan
$250 AUD in 21 days
8.7
8.7

Hi, I specialize in full-stack development with a focus on API integrations. I have experience working with Stripe API for payment processing and can seamlessly connect to InfoAgent API for real-time automotive data retrieval. I ensure a smooth user experience with lead capture, tiered product logic setup, and automated report delivery in PDF format. Let's discuss your project requirements further for a successful launch of NationalVINCheck.com.au.
$350 AUD in 3 days
8.3
8.3

Hi there, We are excited about the opportunity to work with you on developing your website. With strong experience in both front-end and back-end development, We can build a robust, scalable, and user-friendly platform that supports all the core features you’re looking for and tailored as per your requirement. Why Us? • 10+ years of experience in full-stack development • Built several website in all kind of domain platforms (portfolio available on request) • Strong grip on user flows, admin control, and clean UI/UX design • Expertise in PHP, JavaScript, MySQL, HTML/CSS, Laravel and modern frameworks Timeline & Estimate: Depending on final scope after the detail discussion with you We’d love to discuss your vision further and share relevant portfolio examples. Let’s build something powerful together! Looking forward to your response. Best regards, Vishal Nasit
$250 AUD in 10 days
8.0
8.0

Hi, Your project aligns well with my experience building payment-driven API workflows with automated report generation. I’ve developed systems where user input → Stripe Checkout → webhook confirmation → API call → PDF generation → email delivery happens seamlessly. I can implement VIN/Rego capture with validation, then trigger tier-based InfoAgent API calls only after successful Stripe webhook confirmation, ensuring no failed-charge scenarios. Approach: – Secure lead capture before checkout (email + VIN/Rego validation) – Stripe Checkout + webhook handling (idempotent, failure-safe) – Tier mapping (Basic/Premium/Gold → specific endpoints) – Process JSON → generate branded PDF (Puppeteer/PDFKit) – Instant delivery via SendGrid/Mailgun – Error handling (no data → no charge / graceful fallback) I’m comfortable with Node.js backend or Wix Velo depending on your setup, and will ensure scalability, logging, and clean API handling. Quick question: do you already have InfoAgent API credentials and response samples for each tier? I can start immediately and meet your May 15 deadline. – Nikhil...
$500 AUD in 7 days
8.1
8.1

Hi, I have over 5+ years of experience in both frontend and backend development. I will do the specified tasks. Key Areas of Expertise: a) Full-Stack Development: Proficient in both frontend and backend technologies Frontend: Next, Js, ReactJS, Bootstrap, JavaScript, jQuery Backend: Laravel, CodeIgniter, Node.js b) API Integration: Experienced in integrating and working with APIs to enhance application functionality. c) Microservices: Skilled in developing and integrating microservices for scalable and efficient solutions. d) Database Management: Competent in managing databases with Postgresql, MySQL, MongoDB, and Oracle. d) Server Handling: Adept at handling server environments such as AWS, Google Cloud, VPS, Apache, and Nginx. Let’s discuss how I can help achieve your project goals and add value. Lets connect in chat so that We discuss further. With Regards, Sai
$260 AUD in 5 days
7.8
7.8

Hi there, We’ve built similar multi-tiered systems that integrate with Stripe and third-party APIs, so we know how to create a seamless experience for both users and admins. We can also add features like automated email notifications and custom reports to enhance your product. With 15 years of experience, I’ve worked extensively with PHP frameworks like Laravel and CodeIgniter, and I’m equally proficient with modern JavaScript frameworks such as React and Vue. I’ve led multiple startups as a CTO, managing everything from product development to server management and team leadership. At my web development agency, we provide dedicated resources that can be switched between front-end and back-end tasks as needed, ensuring you get the right expertise at the right time. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m eager to learn more about your exciting project. Best, Adil
$550 AUD in 7 days
7.5
7.5

Hello As a Full-Stack Developer with 5+ years, I excel in API integration. My expertise will seamlessly connect and optimize your auto data site, ensuring robust and efficient data flow. I'm adept at both frontend and backend development to deliver comprehensive, scalable solutions. Ready to contribute. Giáp Văn Hưng
$451 AUD in 7 days
6.8
6.8

Hello! I see you're looking for a full-stack developer to integrate Stripe and InfoAgent APIs into your automotive data site, which means seamless payment and data flow is critical to your platform's success. A key challenge is ensuring secure and efficient synchronization between the payment system and automotive data without disrupting user experience. Our team has over 10 years of experience working with Laravel and Native PHP backend, Vue.js and React.js frontends, and extensive API integrations, making us a perfect fit for this task. You can check samples from our work at https://www.freelancer.com/u/eliaa. Looking forward to hearing from you.. Best Regards, Elia Fawzy.
$675 AUD in 7 days
6.9
6.9

Hi, This is a well-defined fintech + data-processing workflow, and I’ve built similar Stripe + API + automated reporting systems over the past 10+ years using Node.js, Laravel, and serverless architectures. I can deliver this as a reliable, production-ready backend for NationalVINCheck.com.au. **Proposed stack:** Node.js (NestJS/Express) + Stripe + InfoAgent REST API + Puppeteer (PDF generation) + SendGrid/Mailgun + Webhooks architecture. **How I’ll structure it:** • Lead capture (VIN/Rego + email stored before payment session) • Stripe Checkout with webhook validation (no API calls until payment success confirmed) • Tier-based logic mapping (Basic / Premium / Gold → InfoAgent endpoints) • Secure InfoAgent API integration with error handling (no charge if data unavailable) • JSON → branded PDF report generation using Puppeteer • Instant email delivery via SendGrid/Mailgun with attachment/link • Logging + retry system for failed API/report generation **Key focus:** • Strict webhook-first payment validation (prevents fraud/false triggers) • Clean separation between payment, data fetch, and report generation • Scalable backend ready for launch traffic Quick question: do you already have InfoAgent API access credentials and endpoint documentation, or should I help map the exact tier-to-endpoint structure? Ready to build this for your May 15 launch with a stable, production-grade flow.
$500 AUD in 7 days
7.0
7.0

Your InfoAgent integration will fail silently if you don't implement webhook retry logic - Stripe sends payment confirmations once, and if your server is down for 2 seconds, the customer pays but never receives their report. Before architecting the solution, I need clarity on two things: What's your expected transaction volume at launch (100/day vs 1000/day changes the infrastructure), and does InfoAgent have rate limits on their PPSR endpoint that could block batch processing during peak hours? Here's the architectural approach: - STRIPE WEBHOOKS + IDEMPOTENCY: Implement signature verification and idempotency keys to prevent duplicate API calls if webhooks fire twice, plus a dead letter queue for failed InfoAgent requests so you can retry without re-charging customers. - INFOAGENT ERROR HANDLING: Build a state machine that validates VIN availability BEFORE payment (via a lightweight pre-check endpoint if InfoAgent offers one), then refunds automatically if the full data fetch fails post-payment - this prevents chargebacks. - PDF GENERATION AT SCALE: Use Puppeteer with a template engine to generate branded reports, but cache the HTML structure and only inject dynamic data to keep generation under 3 seconds per report. - MYSQL TRANSACTION LOGS: Store every Stripe event, InfoAgent response, and email delivery status in separate tables with foreign keys - you'll need this audit trail when customers claim they didn't receive reports. - NODE.JS + EXPRESS: Deploy on a VPS (not Wix Velo) because you need full control over webhook timeouts and background job processing - Wix serverless functions have 30-second limits that won't work for multi-step API chains. I've built 4 payment-to-API systems like this, including one for a property data service that processes 2K reports daily. The failure point is always webhook reliability - let's discuss retry strategies and monitoring before you launch on May 15.
$450 AUD in 10 days
7.3
7.3

Hello There!!! ★★★★ ( Stripe + API based vehicle report system with automated PDF delivery ) ★★★★ I understand you need a full backend system for your automotive site that captures leads, processes Stripe payments, fetches vehicle data via InfoAgent API, and delivers branded PDF reports automatically based on selected tiers. ⚜ Lead capture with VIN/Rego validation ⚜ Tier-based product logic (Basic/Premium/Gold) ⚜ Stripe Checkout + secure webhook handling ⚜ InfoAgent API integration with error handling ⚜ JSON to branded PDF report generation ⚜ Email delivery via SendGrid/Mailgun ⚜ Scalable backend (Node.js/Python or Wix Velo) I’ve built similar API-driven systems with Stripe workflows and automated reporting. My approach is to ensure payment validation triggers secure API calls, then generate clean PDF using Puppeteer and deliver instantly. I focus on reliable flows and fast response handling so user experiance stays smooth. Lets discuss your timeline before launch. Warm Regards, Farhin B.
$256 AUD in 10 days
6.5
6.5

As a seasoned Full Stack Developer with over a decade of experience, I am well-versed in transforming complex ideas into efficient, functioning digital solutions, which makes me uniquely suited for your project. I have successfully handled more than 100 projects to date, ensuring high quality delivery and clear communication throughout. My extensive experience with RESTful APIs and JSON data handling, as well as my proficiency with Stripe and its Webhooks and Checkout sessions, align perfectly with your project's requirements. Furthermore, my deep familiarity with Wix Velo or standalone backend environments like Node.js/Python solidify my capability to handle platform-specific nuances adeptly. My commitment to delivering scalable and secure solutions ensures that the multi-tiered vehicle history report service we build together will be robust enough to handle heavy traffic whilst maintaining confidentiality crucial to such systems. Should you choose me for this project, be assured of not only fast delivery but also a long-term support partnership. Let's connect soon and bring your vision to life!
$350 AUD in 7 days
6.3
6.3

Deliver VIA ✅MAY 15 , ______ I have 12 years of experience with automotive data & government registries REST APIs, Node.js/PHP backends, JSON processing, & yment workflows. I can build the backend system for your Vehicle History platform including VIN capture, Stripe Checkout with webhooks, InfoAgent API integration, & Automated PDF report delivery. The system will securely trigger data retrieval only after payment confirmation and deliver branded reports via email instantly. -- Regards, Ravi s.
$500 AUD in 10 days
6.3
6.3

Your project requires a reliable flow that captures leads, processes payments, retrieves accurate vehicle data, and delivers polished reports automatically. I’ve previously built payment-triggered API workflows where backend logic only runs after Stripe webhooks confirm success—this avoids charging users when data isn’t available. For data fetching, handling VIN errors gracefully is key, so I would implement checks that prevent API calls until payment is verified and verify data before generating PDFs. For your tiered reports, I suggest designing modular calls to InfoAgent endpoints, matching each tier’s features, which keeps the system flexible and easy to maintain. I’d use a PDF library like PDFKit to turn JSON into clean, branded reports and integrate SendGrid for instant email delivery. Do you have preferred technologies for the backend? Also, should the VIN lookup on the frontend validate format before submission? I can have this integrated and tested well ahead of your launch date. Ready to get started as soon as you are.
$500 AUD in 7 days
6.1
6.1

Hello Dear! Greetings from Toriqul Global Solutions! We are pleased to introduce our company as a reliable and experienced provider of Web Design & Development services. Founded and led by Engineer Toriqul Islam, a B.Sc. graduate in Computer Science & Engineering from Rajshahi University of Engineering & Technology (RUET), our team brings over 10 years of industry experience. At Toriqul Global Solutions, we specialize in building modern, user-friendly, and high-performance websites that help businesses grow and stand out in the digital world. Our design approach focuses on simplicity, elegance, and functionality to ensure maximum user engagement. I have some question-- 1. Are you planning to keep this on Wix Velo or move it to a separate Node.js/Python backend for better control? 2. Can you share the InfoAgent API docs (endpoints + authentication flow) and Stripe product setup details? Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB We would be honored to discuss your project requirements and help bring your ideas to life. Thank you for your time and consideration. Warm Regards, Toriqul Global Solutions
$250 AUD in 7 days
6.2
6.2

Hello there, we are a team of Senior Full Stack Web and AI developers. Please, send me a message to discuss the work. Thanks Ashish Kumar.
$500 AUD in 7 days
5.9
5.9

With 8+ years of expertise, I tout a vast array of Full-Stack Development and API integration mastery. I'm deeply accustomed to working with Stripe APIs for complex payment processing and have executed seamless API integrations using RESTful APIs and JSON across various projects. In fact, my understanding of these technologies also extends to InfoAgent APIs that hold relevance for your project. Your need for professional PDF report generation aptly aligns with my skillset; I've efficiently used Puppeteer and PDFKit to convert raw JSON data into clean, branded PDF reports in the past. My skillset's extensiveness doesn't end here. Having worked on numerous projects involving backend web development in Python, PHP, and Node.js (including a Laravel multitenant SaaS project) on infrastructures ranging from Wix Velo to standalone backend environments, I am adept at navigating different setups and finding the most suitable solutions. Considering these skills in tandem with my Fintech experience handling secure payment flows, government registry familiarity (which lines up with PPSR relevance), and extensive database competency in MySQL and PostgreSQL among others, it becomes clear that I possess the unique blend of technical proficiency that your project demands. How about we join forces to realize the ambitious vision you have
$500 AUD in 7 days
5.7
5.7

Launching a new automotive data site is stressful when you need everything to work seamlessly from payment to instant report delivery. It’s especially frustrating knowing that one glitch with Stripe or the InfoAgent API could mean lost sales or unhappy customers right as you go live. You can expect your customers to receive their branded PDF vehicle reports automatically, fast, and only after secure payment confirmation. First, I’ll set up the VIN and registration lookup to collect and validate user details before checkout. Then I’ll connect Stripe payments so the InfoAgent data only flows after successful payment, including handling error states so users never get charged without data. Finally, I’ll automate the report generation and email delivery so customers receive their PDF instantly. Does your timeline for launch leave any room for testing the full user flow end to end?
$524 AUD in 7 days
5.9
5.9

Hello, I will set up a node js backend with express to handle vin and rego lookup requests, store lead email before checkout, and connect the frontend form to stripe checkout sessions with webhook verification so no api call happens until payment is confirmed. after successful payment, the system will trigger tier based logic that maps basic premium and gold plans to specific infoagent rest endpoints, fetch vehicle data in json format, handle missing vin responses with safe error handling so no charge is processed in those cases, then convert the returned data into a branded pdf report using puppeteer with structured templates for each tier. once the pdf is generated, i will connect sendgrid or mailgun to automatically email the report to the user, log transactions for tracking, and ensure each step from payment to report delivery is fully event driven and tested for reliability before deployment. Let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira
$500 AUD in 7 days
5.5
5.5

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