You will get End-To-End EInvoice API Integration
Project details
We provide end-to-end E-Invoice API integration with your web portal or ERP system, enabling users to generate, cancel, and manage e-invoices seamlessly through APIs.
Our solution ensures full compliance with GST e-invoice regulations, while implementing robust security measures to safeguard sensitive business data.
A detailed and well-structured API documentation is provided for easy integration, maintenance, and future enhancements.
Our solution ensures full compliance with GST e-invoice regulations, while implementing robust security measures to safeguard sensitive business data.
A detailed and well-structured API documentation is provided for easy integration, maintenance, and future enhancements.
Programming Languages
ASP.NET, C#Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $400
These options are included with the project scope.
$400
- Delivery Time 15 days
- Number of Revisions 0
7 reviews
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KP
Kriti P.
May 5, 2026
Blazor .NET Core Developer Needed for Marketplace Order Reconciliation
Highly skilled and reliable developer who understood requirements quickly and executed perfectly. Delivered beyond expectations and maintained clear communication. Strongly recommended.
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M H.
Apr 22, 2026
Blazor Web App Development for Taxi Driver Locator
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Dipan S.
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Fix WhatsApp Cloud API “Missing valid payment method” Issue (Meta Developer App)
Gajjar did an excellent job fixing my Meta WhatsApp Cloud API issue. He was very careful, detail-oriented, and clearly knew what he was doing. Communication was smooth and the problem was resolved properly. Highly recommended.
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Markus H.
Feb 18, 2026
Expert ASP.NET MVC Developer Needed for Project
He says one thing, does another, thinks another. Totally unprofessional attitude. Take care of your projects.
KP
Kriti P.
Feb 14, 2026
GST Government API Integration
Yash delivered good work on this development project and was easy to work with throughout. His communication was clear, he respected deadlines, and approached tasks responsibly. Whenever something was unclear, he discussed it honestly rather than guessing. Overall a dependable professional and I would be comfortable working with him again in the future.
About Yash
.Net Core | ASP Dotnet MVC | GST API | Meta API | AWS Expert
88%
Job Success
Ahmedabad, India - 5:15 pm local time
🚀 What sets me apart?
End-to-End Expertise:
Proficient in C#, ASP.NET Core/MVC, Blazor (Server & WebAssembly), Microservices, Web APIs, Worker Services, and Windows/Desktop apps. I handle everything from system architecture and UI/UX to backend logic, deployment, and performance optimization.
Modern UI with Blazor:
Strong experience building rich, interactive web applications using ASP.NET Core Blazor, delivering responsive and high-performance frontends without heavy JavaScript dependency.
API Integrations Mastery:
Deep experience integrating government GST/e-invoice APIs for regulated finance systems, along with third-party platforms such as WhatsApp/Facebook Cloud APIs, Zomato/Swiggy POS, and payment gateways.
Database Leadership:
Advanced expertise in PostgreSQL, SQL Server, and MySQLcovering data modeling, complex query design, performance tuning, indexing strategies, and migration of large-scale legacy systems to modern architectures.
CI/CD & DevOps:
Hands-on experience implementing automated pipelines using GitHub Actions, enabling efficient build, test, and deployment workflows. Strong understanding of version control, release management, and continuous delivery practices.
Cloud & Serverless:
Proficient with AWS (S3, EC2, Lightsail, SQS, Lambda), Firebase/Firestore, and modern cloud deployment strategies for scalable and cost-effective solutions.
Project Delivery:
Successfully led full-cycle development from requirement analysis and prototyping to clean implementation, testing, deployment, documentation, and long-term support.
Diverse Domain Expertise:
Education, GST & Tax, FinTech, CRM/ERP, Restaurant & Retail POS, WhatsApp Marketing delivering tailored solutions across industries.
Technical Highlights
ASP.NET Core, MVC, Blazor, Web API, Microservices
PostgreSQL, SQL Server, MySQL (design, optimization, migrations)
Entity Framework, Dapper, LINQ
CI/CD with GitHub Actions, deployment automation
HTML, CSS, JavaScript, jQuery
Hangfire Jobs, Worker Services
Code First / DB First, Repository Pattern, 3-Tier Architecture
Real-time systems, WebHooks, serverless APIs
What can I do for you?
Build modern web apps using ASP.NET Core & Blazor
Design and optimize high-performance databases (PostgreSQL expertise)
Set up robust CI/CD pipelines with GitHub Actions
Integrate secure APIs (GST, payments, third-party platforms)
Migrate legacy systems to scalable, modern architectures
Provide reliable long-term technical support
I focus on delivering clean, scalable, and production-ready solutions—on time and within scope. If you're looking for a developer who understands both business needs and technical excellence, let’s connect and build something impactful.
Steps for completing your project
After purchasing the project, send requirements so Yash can start the project.
Delivery time starts when Yash receives requirements from you.
Yash works on your project following the steps below.
Revisions may occur after the delivery date.
Providing API Access
Testing Of End-To-End API Integration