DGII eBilling API Integration -- 3

@ambar

Hi, I can help with the DGII integration. The authentication and document signing part is usually the trickiest piece. There are existing DGII e-CF reference implementations available, so we can build on proven patterns rather than starting from zero. Do you already have: • Sandbox access? • Digital certificate (.PFX/.P12)? • ERP/POS invoice data format? Also, which stack would you like the API built in? Thanks

@n2rtechnologies

Hello, I've built DGII eBilling integrations before — I know the XML schema quirks, the API authentication flow, and where most developers get stuck with Dominican tax compliance. We can deliver this cleanly. We've been building integrations and backend systems for 12+ years, shipping 800+ projects across PHP, Node.js, Python, and .NET. Tax authority APIs like this are exactly in our wheelhouse — we understand the regulatory layer and the technical debt that comes with it. The bid range here is a starting point. Once we map out your exact scope — which DGII endpoints, whether you need real-time validation, batch processing, or both — I'll give you a real number and timeline. Let's do a quick call this week. I'll ask three questions about your current system and what's broken, then send you a scoping doc. Message me whenever you're ready. Regards, Nurul Hasan

@kamran2012

Hi, I will build the REST API for DGII e-CF integration — seed authentication, XAdES-BES XML signing with your .PFX certificate, e-CF submission, and TrackID status inquiry — all connected to the sandbox environment first, then production. For the digital signature step, I will validate the certificate chain and timestamp before signing to prevent silent rejection by DGII during pre-certification. Questions: 1) Which language or framework does your ERP/POS use for its backend? 2) Do you already have your DGII digital certificate and RNC registered for testing? Ready to start whenever you are. Kamran

@ZohaibRoy

⭐⭐⭐⭐⭐ Expert Developer for DGII Integration API in Electronic Billing ❇️ Hi My Friend, I hope you are doing well. I reviewed your project needs and I see you are looking for a developer experienced in electronic billing for the Dominican Republic. You don’t need to look any further; Zohaib is here to help you! My team has successfully completed over 50 similar projects for DGII integrations. I will create a robust API that connects your ERP/POS system to DGII, ensuring smooth authentication, digital signing, and invoice submission. ➡️ Why Me? I can easily handle your DGII integration API project as I have 5 years of experience in electronic billing and API development. My expertise includes XML handling, digital signatures, and working with .PFX certificates. Additionally, I have a strong grip on the DGII authentication process and API integrations, ensuring a seamless workflow for your project. ➡️ Let's have a quick chat to discuss your project in detail. I can also provide samples of my previous work. Looking forward to chatting with you! ➡️ Skills & Experience: ✅ Electronic Billing ✅ API Development ✅ XML Handling ✅ Digital Signatures ✅ .PFX Certificates ✅ Authentication Processes ✅ ERP/POS Integration ✅ Error Handling ✅ Documentation Creation ✅ Use Case Development ✅ Client Communication ✅ Problem Solving Waiting for your response! Best Regards, Zohaib

@Friends4it

Hi, I've read your brief — develop an integration API connecting your ERP/POS to the DGII e-CF (electronic billing, Dominican Republic), first to the test environment and then production. We build tax/e-invoicing API integrations and run our own ERP/POS (EloERP), so wiring an ERP into a government e-invoicing API — certificates, XML signing, document statuses, and test->prod promotion — is familiar territory. To be straight: I'll work directly from the DGII e-CF technical spec, so I'd want to confirm the exact e-CF document types and your certificate setup up front. My approach: - Build the API layer that maps your ERP/POS invoices to the DGII e-CF XML schema, with XAdES digital signing. - Submit to the DGII test environment, handle acknowledgements/statuses + error retries, then promote to production. - Clean logging + a reconciliation view so every e-CF's status is traceable. I've posted scope questions on the board (which ERP/POS, which e-CF document types first, certificate + test creds). Could we do a quick call to confirm and start? — Muhammad Idrees / Global IT Vision Pvt. Ltd

@giaphung2k1

Hello E-billing system integration stalls due to complex compliance standards. I solve this. Built automated VAT-compliant invoicing pipelines for three fintech startups. Reduced manual reconciliation by 40% through robust API hooks. I understand strict tax formatting requirements and secure payment gateway handling. Ready to streamline your billing workflow. Let's discuss your specific API requirements. When are you free for a quick call? Giáp Văn Hưng

@toriquldev123

Hello dear, I’m an experienced backend and API integration developer with strong experience in electronic invoicing systems, digital certificates, XML processing, REST APIs, and ERP/POS integrations. I understand you need a complete DGII e-CF integration API that handles the full workflow: seed retrieval, digital certificate signing (.PFX/.P12), authentication token generation, XML invoice creation, XAdES-BES digital signing, e-CF submission, TrackID management, status inquiries, and a clean REST API layer for your ERP/POS system. My skills: XML, REST APIs, Digital Signatures (XAdES-BES), .PFX/.P12 Certificates, ERP/POS Integrations, .NET, Node.js, Laravel, Authentication Workflows. I can deliver a secure, well-documented API with invoice issuance endpoints, status-check endpoints, DGII error handling, source code, endpoint documentation, and sandbox-to-production deployment guidance. Have you already obtained the DGII testing credentials and digital certificate required for the pre-certification environment? Best regards, Toriqul Islam

@johnallenvillan1

Hi there, DGII eBilling integration with seed authentication, XAdES-BES signing, and TrackID status handling needs someone who has already worked through the Dominican Republic flow end to end. I’ve spent the last 4 years solving exactly this type of problem, including ERP invoice pipelines and certificate-based API integrations. The main risk here is not the REST layer; it’s making the DGII XML, signature, and token sequence match sandbox expectations exactly, then keeping it stable when moving to pre-certification and production. I’ve seen projects fail on certificate chain handling, canonicalization, and response parsing long after the invoice payload itself looked correct. I will build the authentication flow for /authentication/api/Seed and /Authenticate, generate and sign the e-CF XML with your .PFX/.P12, submit to /reception/api/ElectronicInvoices, and wire the TrackID inquiry endpoint. I’ll also add a clean REST layer for your ERP/POS, standardized DGII error handling, and source-level documentation for certification review. Best regards, John allen

@meeranas

Hi, I can build a complete DGII e-CF integration API covering seed authentication, token generation, XML invoice creation, XAdES-BES digital signatures, invoice submission, TrackID management, status inquiries, and REST endpoints for your ERP/POS system. My preferred stack is Laravel 12 due to its security, maintainability, and excellent API capabilities. The solution will include Swagger documentation, error handling, logging, and source code delivery. A few questions: Do you already have sandbox certificates (.PFX/.P12)? Which ERP/POS will consume the API? Do you need support for multiple e-CF document types or only standard invoices initially?

@nancydeveloper

Hi , I have carefully reviewed your project requirements and am confident I can deliver a high-quality, scalable, and performance-driven solution that aligns perfectly with your goals. With over 7 years of experience in full-stack web development, I specialize in building robust, secure, and conversion-focused digital ecosystems rather than just standalone websites. Core Expertise & Technical Skills ✔ Custom Web Development: PHP, CodeIgniter, Python, MySQL ✔ Advanced WordPress: Custom Themes, Plugins, WooCommerce, Elementor ✔ Frontend & Design: HTML5, CSS3, JavaScript, jQuery, Figma/PSD to Pixel-Perfect HTML ✔ Optimizations: API Integration, Speed/Performance Enhancement, and Mobile-First Responsive Design ✔ Maintenance: Advanced Bug Fixing, Debugging, and Security Audits What I Bring to Your Project ✔ Clean, Scalable Architecture: Well-structured code built for long-term growth and SEO optimization. ✔ Performance-Driven Focus: Fast-loading, secure, and fully responsive across all devices. ✔ Business-Centric Approach: Designed to enhance user experience and deliver measurable business value. ✔ Seamless Collaboration: Clear communication, regular progress updates, and reliable post-launch support. Let’s connect and discuss how we can turn your idea into a powerful digital product that supports your business growth. I would be happy to get started immediately. Thank you.

@mahads31

Leveraging over a decade of diverse experience and expertise, I am the perfect fit for your DGII eBilling API Integration project. Having previously implemented integrations with DGII and deeply familiar with the authentication, digital signature, and electronic invoice submission processes, I can assure you a high-quality and efficient delivery. My adeptness with digital certificates, XML management, and digital signatures perfectly aligns with your project needs. Additionally, I offer an extensive understanding of DGII's Seed Authentication Process as well as API integration which will further streamline the process for you. As a part of our collaboration, expect clear endpoint documentation, thorough use cases, source codes and, most importantly, a fully functional DGII integration API. What sets me apart in the domain are my client-centered approach that puts your business goals at the forefront rather than just technical requirements and my meticulous orientation towards scalability suited for businesses like yours that value smart solutions. Let’s not miss the opportunity to leverage my agile execution combined with an innovation-first mindset to build an API that's future-ready and grows seamlessly with your operational requirements.

@techsty2014

This looks like a great fit, We will build your DGII e-CF integration API: seed authentication, XAdES-BES XML signing, invoice submission, and status inquiry via TrackID. For the digital signature flow, we will handle the .PFX certificate parsing and XML canonicalization in a way that passes DGII pre-certification on the first round. That saves weeks of back and forth. A couple of quick things to confirm: 1) What language or framework does your ERP/POS system use? 2) Do you already have your digital certificate and DGII sandbox credentials? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Send me a message and we can go over the details. Best regards, Faizan

@jvy7802

Hi! This is Jorge from IT GLOBAL SOLUTION LLC, based in FL, United States. I’ve worked on API integrations like yours, especially electronic invoicing flows that need deterministic XML generation, certificate handling, and a multi-step auth/sign/submit lifecycle. Your approach looks scalable for moving from DGII sandbox to production. I’ll build a REST API service (Node.js) that adapts your ERP/POS payloads to DGII e-CF endpoints. For each invoice request, the service will generate e-CF XML deterministically, then delegate XAdES-BES XML signing to a dedicated signing module (Python or a .NET wrapper) that uses your .PFX/.P12 certificate to produce the correctly signed XML structure. For DGII auth, it will call /authentication/api/Seed, sign the seed with the certificate, then call /authentication/api/Authenticate to obtain and cache a token. Submission will call /reception/api/ElectronicInvoices, parse the response to capture TrackID, and persist invoice identifiers plus TrackID so a status endpoint can call /checkResults/api/Inquiries/Status and return a normalized status mapped to your ERP/POS. DGII error payloads will be converted into actionable codes/messages in our API. Delivery includes exact request/response schemas for sandbox and production, plus clean maintainable code with Git integration and developer-focused documentation so you can extend mappings and invoice fields later. Happy to connect and go over the details. Best, Jorge

@mobasherreza10

As an experienced software developer with a proven track record in API integrations and a vast array of technical skills, I am confident I can successfully execute the DGII eBilling API integration you require. My familiarity with XML, digital signatures, and .PFX certificates aligns perfectly with the tasks involved in authenticating and signing the seed phrase, generating e-CFs, submitting invoices, and performing status inquiries. I am familiar with the DGII electronic invoicing system, having worked on similar projects before. Additionally, my extensive knowledge in software development, encompassing .NET, Node.js, Django, and Laravel among others, makes me more than qualified to not only develop the integration API but also provide you with comprehensive endpoint documentation and use cases.

@SkillCrafts

I've successfully integrated similar e-invoicing systems, including [mention a specific country or similar regulatory body if possible, e.g., "a complex tax authority's API for digital receipts"] which involved navigating strict authentication protocols and ensuring real-time data integrity. This experience directly translates to the challenges of integrating with the DGII's e-CF platform. My approach will involve developing a robust, RESTful API using [mention language/framework, e.g., Python with Flask/Django or Node.js with Express]. I'll utilize established libraries for XML manipulation and digital signature generation (e.g., [mention specific libraries if known/relevant, e.g., `xmlsec` or equivalent]). The plan includes setting up a staging environment for comprehensive testing of authentication, invoice generation, submission, and receipt handling against the DGII's test environment before proceeding to production. To ensure seamless integration, could you confirm the current version of the DGII's e-CF API specification you'll be using? Also, what are your primary ERP/POS system's integration capabilities (e.g., SOAP, REST, specific data formats)? I'm eager to discuss how I can deliver a reliable and compliant DGII integration for your business.

@toqeer74

The complexity of integrating DGII electronic billing demands a nuanced understanding of the authentication process, particularly in obtaining and signing the seed phrase with a digital certificate. Leveraging my direct experience with DGII, I can efficiently develop the required REST API to facilitate seamless connection between your ERP/POS system and DGII's endpoints, including error handling and status inquiries. With a clear approach to generating and signing XML invoices, I will ensure that all operational aspects are covered and compliant with DGII standards. Initial deliverables can be ready within 14 days. When can we start? I can have something to show you within 24 hours.

@fizaa170

DGII integrations are usually less about API development and more about correctly handling the authentication, certificate management, XML generation, and digital signature requirements. A small mistake in the signing process can cause every invoice submission to fail. From your scope, I understand the integration must cover the complete e-CF lifecycle: • Seed retrieval and authentication. • Digital signing using .PFX/.P12 certificates. • XML generation and XAdES-BES signing. • Electronic invoice submission to DGII. • TrackID management and status inquiries. • REST endpoints for ERP/POS integration. • Error handling, logging, and response validation. My approach would be to build the DGII integration as a standalone service/API so your ERP/POS can consume it through clean REST endpoints. This makes future maintenance, certification, and production deployment much easier. I have experience developing ERP systems, API integrations, authentication workflows, document processing, and secure backend services where reliability and auditability are critical. One important question before discussing implementation: Do you already have the DGII-approved digital certificate (.PFX/.P12) and e-CF document structure defined, or would the project also include creating and validating the XML templates for the different invoice types?

@bondoc0526

༺❖༻ Dear Client ༺❖༻ Thanks for posting about my specialist area. Your project aligns closely with my experience in secure API integrations and regulated electronic invoicing systems. I’ve worked on complex backend integrations involving XML processing, digital signatures, and certificate-based authentication workflows (.PFX/.P12), where security and compliance are critical. I’m familiar with building REST APIs that connect ERP/POS systems with external government or financial platforms while ensuring reliability and traceability. For your DGII e-CF integration, I will implement the full workflow starting from seed authentication, certificate signing, token generation, XML invoice creation with XAdES-BES signing, and submission to the DGII endpoints. I will also build clean REST endpoints for your ERP system to issue invoices, check status via TrackID, and handle DGII error responses properly. The solution will be structured, well-documented, and ready for both sandbox and production environments, with clear deployment and usage documentation. I’m ready to start immediately and can work closely with your team during certification if required. Best regards, Glenn Bondoc

@srdank001

Hi. ⚡ I guarantee a 100% success rate.⚡ I have strong experience with ERP and API integrations involving XML, digital certificates, and secure authentication flows. I can build a clean DGII e CF integration API that handles seed authentication, XML generation, XAdES BES signing, invoice submission, TrackID retrieval, and status checks. The API will expose simple REST endpoints for your ERP or POS and include proper error handling and documentation. I can start with the sandbox environment and ensure the architecture is ready for certification and production deployment. I am sure I can complete your project perfectly as you want looking forward for your reply Thanks Srdan