Jewellery E-Invoice & E-Way API -- 2

@Hiralkapaletiya

Hello Sir / Ma'am, I have strong experience in REST API development, XML/JSON integrations, secure API architecture, and billing system automation. I can build a lightweight, well-documented API for your jewellery billing software that accepts XML or JSON sales data, generates e-invoices with ARN responses, creates e-way bills, and fetches GST owner details using GST numbers. The system will use secure API-Key authentication, validated request handling, clean code structure, and container-friendly deployment. My focus will be on performance, maintainability, and seamless integration with your existing jewellery software. I will provide complete source code, working endpoints, Postman/Swagger documentation, and setup guides for local and staging deployment. I specialize in scalable business software integrations and can deliver a reliable production-ready solution quickly. Regards, Hiral Ghariya

@fizaa170

most e-invoice APIs fail on validation + govt response handling — one mismatch and the whole flow breaks — I’ll build yours with strict schema validation, clean parsing for XML/JSON, and reliable ARN/e-way responses so your billing system doesn’t hit dead ends do you already have a government API provider in place or should I integrate one? do you want async handling for slow ARN responses or keep it sync for MVP? any rate limits or retry rules we need to follow? this will be built clean and stable so your billing system runs without failures

@amit210279

Hi there, You’re in the RIGHT PLACE! I’ve worked on SIMILAR PROJECTS multiple times and understand how to deliver this EFFICIENTLY and CORRECTLY from the start. I bring 17+ YEARS OF EXPERIENCE from other freelancing platforms, successfully delivering HIGH-QUALITY PROJECTS and REAL RESULTS for clients. To provide an accurate SCOPE, TIMELINE, and COST, I’d like to ask a few KEY QUESTIONS. Due to Freelancer’s character limit, it’s difficult to cover everything here. Let’s connect in CHAT so I can: • Share RELEVANT PAST WORK • Understand your EXACT REQUIREMENTS • Propose a CLEAR and EFFECTIVE ACTION PLAN I’m confident you’ll find my approach PRACTICAL, TRANSPARENT, and RESULTS-DRIVEN. If you're ready to get this done the RIGHT WAY, I’d be happy to get started. Looking forward to CONNECTING with you. Best regards, Amit Ranjan

@manoval09

Hi, I see you're building a jewellery billing system that needs clean REST API integration with E-Invoice and E-Way compliance—the regulatory piece is what makes this non-trivial, especially with GST requirements in India. That "--2" tells me the first iteration hit some friction; I can help you get this right. I'll architect this with Node.js + Express, using Sequelize for the database layer to handle both billing records and compliance logs. For E-way integration, I'll use the official GST Portal API (not third-party wrappers) and implement stateless JWT authentication so your frontend doesn't manage sessions. Swagger OpenAPI docs will be generated automatically from the code, so they stay current. The key here: separating invoice generation from E-way submission in your data model, so you can retry failed submissions without recreating invoices. Here's what happens in my first 24 hours: I'll map your current jewellery billing data model, verify the E-way credential flow with a test call, and deliver a working base schema + one authenticated endpoint. That tells us immediately if the scope fits the timeline. Best regards, Val

@ajittkumark

Hello, I can build a clean and production-ready REST API for your jewellery billing system using C# / ASP.NET Core, designed to be fast, simple, and easy to integrate. Approach: ASP.NET Core Web API with clean layered structure Support for both XML and JSON payloads API-Key authentication via middleware Container-ready (Docker-friendly setup) Endpoints: /einvoice → Accept sales data → return ARN /ewaybill → Generate e-way bill from same data /getGSTOwnerDetails → Fetch GST owner details Key features: Input validation for XML/JSON Consistent response format Clear error handling and logging Integration-ready service layer Deliverables: Well-structured source code with comments Working endpoints with sample requests Swagger + Postman collection Setup guide for local and staging API-Key configuration instructions I will ensure the API is clean, reliable, and easy to plug into your system.

@akashk390

Hi, Hope you're doing great! I just went through your project description, and I’m excited about the opportunity to work with you. Based on your requirements, I’m confident that I can deliver high-quality results that align perfectly with your vision. ? Here’s a quick snapshot of what I bring to the table: ✔️ Expert in PHP, HTML5, CSS3, JavaScript and Vue.js ✔️ Hands-on experience with frameworks like Laravel, Yii1/Yii2, CodeIgniter, CakePHP, Symfony ✔️ Strong database knowledge: MySQL ✔️ Proven track record of building dynamic, responsive, and user-friendly websites across various industries What sets me apart is not just my technical expertise, but my focus on clear communication, meeting deadlines, and building long-term relationships with clients. ? Let’s chat! I’d love to learn more about your project goals and see how I can help bring them to life. Looking forward to the possibility of working together! Thank you and best regards

@sagarr1999

Hello sir, I have 6+ years of experience in backend API development and can build your jewellery billing integration service quickly and accurately while ensuring clean architecture, fast response time, and easy container deployment. I can create a lightweight REST API that securely handles API-key authentication and accepts both XML and JSON payloads for processing e-invoice generation, returning a valid response with ARN, as well as generating e-way bill data from the same input source. I can also implement a dedicated endpoint for fetching GST owner details instantly using the GST number provided. The API will be structured for high performance, easy maintenance, and seamless integration with your jewellery billing system. Final delivery will include well-organized source code, three working endpoints, a Postman or Swagger collection with sample XML and JSON requests, and a clear setup guide with README for local and staging deployment, including API-key configuration and testing instructions. Thanks, Sagar

@akshayupadhyar

Hi, I can build a clean, fast, and well-documented REST API tailored for your jewellery billing system. I’ll develop 3 secure endpoints: • /einvoice → accepts XML/JSON, validates data, returns ARN • /ewaybill → generates e-way bill from same payload • /getGSTOwnerDetails → fetches GST profile instantly Tech stack: Node.js (Express/NestJS) or Python (FastAPI) — both are lightweight, fast, and easy to containerise with Docker. What you’ll get: • Clean, structured, well-commented source code • XML + JSON parsing with strict validation • API-Key based security (header-based) • Swagger/Postman collection with sample requests • Setup guide + README for local & staging I’ll ensure accurate response handling for your jewellery billing data and make the API robust, scalable, and easy to integrate. Ready to start and deliver quickly

@shaxzodj

Boss, I can build this as a clean, container-ready REST API with API-Key security and documented XML/JSON request support. I’d suggest using Node.js/NestJS or Python/FastAPI for a lean structure, fast validation, Swagger docs, and easy Docker deployment. The API will accept jewellery sales data from your software in XML or JSON, validate it, convert it into the required e-invoice/e-way bill format, and return ARN, e-way bill number, or GST owner profile as needed. Deliverables I’ll provide: Clean source code with proper folders and comments Endpoints for e-invoice, e-way bill, and /einvoice/getGSTOwnerDetails API-Key header middleware XML + JSON sample requests Swagger/Postman collection Docker/local/staging setup guide and README I can complete the first working version in 5–7 days for $550. One question: will you provide access/API credentials for the government GST/e-invoice/e-way bill provider, or should I integrate with a sandbox/mock provider first for testing?

@karthikmaran73

I can develop your jewellery billing REST API using Java Spring Boot, ensuring high performance, scalability, and clean architecture. I will design lightweight, well-structured endpoints that accept both XML and JSON payloads from your billing software and return accurate e-invoice responses, including the government-issued ARN. The same payload will be efficiently reused to generate e-way bills, avoiding duplication and ensuring consistency. I will also implement a fast GST lookup endpoint to fetch registered owner details instantly using the GST number. The API will be secured using an API-Key header as required, and the entire service will be built to be easily containerised using Docker for smooth deployment in local and staging environments. Deliverables: Clean, modular Spring Boot project with proper package structure and comments Three working endpoints (e-invoice, e-way bill, GST owner details) XML & JSON request/response handling using Spring Boot (Jackson/JAXB) API-Key based security implementation Postman/Swagger documentation with sample requests Setup guide and README for quick deployment I will ensure the API is reliable, fast, and easy to integrate with your jewellery billing system. You can directly test it using your XML/JSON sales data and expect accurate ARN, e-way bill numbers, and GST details. Looking forward to working with you.