DGII eBilling API Integration -- 2

@ZohaibRoy

⭐⭐⭐⭐⭐ Expert Developer for DGII Electronic Billing API Integration ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you're looking for a developer experienced in electronic billing in the Dominican Republic. You don't need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for DGII API integrations. I will create a seamless API that connects your ERP/POS system to DGII, ensuring all requirements are met effectively. ➡️ Why Me? I can easily do your DGII API integration as I have 5 years of experience in electronic billing and API development. My expertise includes XML handling, digital signatures, authentication processes, and error management. Additionally, I have a strong grip on integrating ERP/POS systems with various APIs. ➡️ Let's have a quick chat to discuss your project in detail, and I can show you samples of my previous work. Looking forward to discussing this with you! ➡️ Skills & Experience: ✅ Electronic Billing ✅ API Development ✅ XML Handling ✅ Digital Signatures ✅ Authentication Processes ✅ ERP/POS Integration ✅ Error Management ✅ Token Generation ✅ Software Documentation ✅ Use Case Development ✅ Sandbox Testing ✅ System Certification Waiting for your response! Best Regards, Zohaib

@kamran2012

Hi, I will build your DGII e-CF integration API — seed authentication, XAdES-BES XML signing with your .PFX certificate, e-CF submission, and TrackID status inquiry — all exposed as a clean REST API for your ERP/POS system. For the digital signature, I will ensure the XAdES-BES envelope includes the proper SignedProperties and certificate chain that DGII validates during pre-certification, which is where most implementations fail silently. Questions: 1) What language/framework does your ERP/POS run on? 2) Do you already have your digital certificate and DGII sandbox credentials? Looking forward to potentially working together. Thanks, Kamran

@muhammadali33345

Objective: build a reliable DGII e-CF integration API that bridges your ERP/POS to Sandbox/Pre-Certification, then production-ready behavior. Deliverables included: - DGII Authentication flow: seed retrieval, PFX/P12 certificate signing, token acquisition - e-CF generation: XML invoice creation and XAdES-BES digital signature - Submission: send to /reception/api/ElectronicInvoices, parse response, return TrackID - Status inquiry: endpoint wrapping /checkResults/api/Inquiries/Status using TrackID - Your REST API: issue-invoice endpoint, check-status endpoint, and structured DGII error mapping - Endpoint documentation, sample use cases, and source code We’ll design for idempotency (avoid duplicate submissions), consistent XML generation, signature correctness, and clear logging for certification troubleshooting. Objectively Creative: What specific invoice data mapping and certification success criteria will your ERP/POS require for DGII pre-cert completion (clientQuestion)? Next step: confirm your target invoice fields/mapping and certificate handling (storage, rotation).

@giaphung2k1

Hello E-invoicing integration creates friction. Tax compliance and API connectivity bottlenecks slow deployment. I built automated billing pipelines for three fintech platforms, reducing reconciliation errors by 40%. I understand PEPPOL standards and direct API XML handling. Ready to streamline your invoicing flow and ensure zero-downtime integration. Can you share your target gateway or ERP requirement? Let's discuss scope. Giáp Văn Hưng

@mahads31

Drawing on my extensive experience in software and web development, particularly in API integration, I am confident in my ability to tackle the demanding task of integrating your ERP/POS system with the DGII eBilling infrastructure. Not only do I have a solid grasp of the technical expertise required, such as working with XML, Digital Signatures, and PFX Certificates, but I have also worked on projects specifically involving DGII Electronic Invoicing before. This includes knowing the complete process revolving around authentication, digital signatures, and electronic invoice submission. Crucially, this project demands not just technical know-how but also proficiency in dealing with DGII – and here again I stand out from other candidates. Having previously certified systems with DGII, my knowledge extends beyond merely integrating your system with theirs; I understand how DGII operates and can navigate its complexities effectively. Finally, my commitment to delivering high-quality work aligns perfectly with your needs. I take a client-centered approach where understanding business goals is as crucial as meeting technical specifications. This means I prioritize not just building an efficient API but one that is scalable and prepares you for future growth. With me on your side throughout this project, you can rest assured that you have a capable ally invested in ensuring your long-term success.

@techsty2014

Hi there, We will build your DGII e-CF integration API: seed authentication, XAdES-BES XML signing with your .PFX certificate, e-CF submission, and TrackID status inquiry. For the digital signature step, we will handle the XAdES-BES envelope correctly so pre-certification passes on the first round. We have worked through the full DGII sandbox to production cycle before. A couple of quick things to confirm: 1) What language or framework does your ERP/POS use for its backend? 2) Do you already have your digital certificate (.PFX) and RNC registered in the DGII test environment? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Looking forward to talking through the details. Faizan

@mykhaylob4

✋ Hi there. I can integrate DGII e-billing API with authentication, digital signatures, and e-CF submission for your ERP. ✔️ I have rich experience with DGII electronic invoicing and recently completed a similar integration with seed authentication, XAdES-BES signing, and TrackID status inquiries. I will develop this by implementing the full seed and token authentication flow, generating and signing XML invoices with .PFX certificates, building submission and status check endpoints, exposing REST APIs for your ERP, and handling all DGII error responses with proper logging. Please click the 'Chat' button to start our valuable conversation. Looking forward to collaborating with you! Best regards, Mykhaylo

@craigd43

With over 5 years of experience in web development and a strong focus on REST API integration, I believe I am the perfect fit for your DGII eBilling API Integration project. Not only do I have proficiency in Java, JavaScript, Node.js, and Python, but I also possess a deep understanding of XML - a crucial skill for complying with the DGII e-CF standards. This knowledge enables me to generate e-CFs as required and sign them digitally using .PFX Certificates to ensure both authenticity and integrity. My previous experiences include projects that require authentication, digital signature, and invoice submission processes similar to what you need for this project. Even more relevant to your requirements is my familiarity with performing these tasks for Dominican Republic electronic billing - undoubtedly an expertise in high demand here. The fact that you're seeking someone with experience certifying systems with DGII, aligns perfectly with my credentials as well. In summary, not only can I design an efficient integration API to connect your ERP/POS system with theDGII's(both in test environment and production), but I can also timely handle any task posed by DGII queries or errors while providing easy-to-understand documentation as necessary. My commitment to delivering quality code on time complements my comprehensive understanding of the scope of work.

@mobasherreza10

As an experienced software developer with a solid understanding of API integration, I am confident in my ability to tackle the specific needs of your DGII eBilling API Integration project. My expertise spans a wide range of languages including Java, JavaScript, Node.js, and Python, all of which coincide with the technologies needed to complete this task effectively. I have prior experience with XML, Digital Signatures, and .PFX Certificates - exactly the skills you've outlined for success in this project. My professional background has afforded me opportunities where I was tasked with similar work on other ERPs and POS systems. With these experiences, I've honed my abilities to handle complex authentication processes, such as the one associated with DGII Seed Authentication - another qualifying attribute that makes me an ideal fit for this endeavor.

@Algokage

Hello, I can efficiently develop the DGII eBilling API integration for your ERP/POS system, ensuring seamless authentication, digital signature, and electronic invoice submission. My approach will focus on creating a robust REST API with endpoints for issuing invoices, checking status, and handling DGII errors, all while adhering to the DGII’s specific requirements. With 5+ years of experience in API integrations, including successful DGII implementations, I’m well-equipped to deliver a functional solution. Send a message to discuss further or see samples of similar projects. Thanks, Adegoke. M

@fizaa170

The critical part of this project is not generating invoices—it's correctly implementing the DGII authentication flow, XAdES-BES digital signatures, certificate handling, and ensuring the integration can successfully pass pre-certification and move to production. I have experience building ERP integrations, REST APIs, secure authentication flows, XML processing, and business-critical financial systems. For a DGII integration, I would focus on creating a clean API layer that your ERP/POS can consume without needing to handle DGII-specific complexity. The API would cover: • Seed retrieval and authentication flow. • Digital certificate (.PFX/.P12) handling. • XAdES-BES XML signing. • e-CF generation and submission. • TrackID retrieval and storage. • Invoice status verification. • DGII error handling and logging. • REST endpoints for invoice issuance and status checks. • Documentation and integration examples. Recommended architecture: • Node.js/.NET Core API • Secure certificate management • XML generation & validation • PostgreSQL/SQL Server logging layer • Sandbox → Production migration path One important question: Do you already have an approved DGII digital certificate and sandbox credentials available, or will the selected developer also be expected to assist with the DGII certification/onboarding process?

@sgwtechnology

Hi, I have experience building secure API integrations for ERP/POS systems, including working with XML-based financial messaging, digital certificates (.PFX/.P12), and signed payload workflows similar to XAdES standards. For your DGII e-CF integration, I can develop a clean REST API layer that handles the full lifecycle: seed authentication, token generation, XML invoice creation, digital signing, submission to DGII endpoints, and TrackID-based status tracking. I will ensure proper error handling, logging, and separation between sandbox and production environments. The solution will be structured for maintainability so your ERP/POS can easily consume it, with clear documentation and endpoint references included. I’m comfortable working with secure cryptographic flows and government-style e-invoicing APIs. Ready to start immediately.

@nowars

Hello, Our team has experience with electronic billing systems and API integrations, specifically in environments requiring secure data exchange and compliance with regulatory standards. We have successfully implemented REST APIs for various ERP systems, focusing on robust authentication and electronic invoice generation. Our approach to your project will involve developing an API that includes secure authentication with the DGII, managing the digital signature process using .PFX/.P12 files for signing the seed phrase, and implementing a structured workflow for electronic invoice submission. Given your needs, we propose starting with setup, followed by configuration for DGII environment integration, and extensive testing to ensure compliance and reliability. We understand the critical process of obtaining and managing tokens for authentication, and we are well-equipped for the intricacies of DGII’s e-CF requirements. Thanks, PureCode Company

@hugog17

⭐Hi there Let's set interview schedule if you want discuss for ur project more detail . DGII eCF integration needs to be handled carefully from seed auth to XAdES BES signing, because one small XML or cert issue can block the full ERP POS flow. Built similar fiscal invoice API flow before with PFX certificate signing, XML generation, token auth, submission endpoint, TrackID storage, and status check API for POS side use. For your API, can create clean REST endpoints for invoice issue and status inquiry, then handle DGII sandbox response, error codes, retries, logs, and prod ready config without breaking current ERP logic. Node.js or Python is ok for this, depending on your current stack. Time line : 7 days Total Budget : 500 NZD Do you already have DGII sandbox credentials and PFX certificate ready for testing?

@Analizo

Hi, Before we discuss implementation, has your ERP/POS already been approved for DGII pre-certification, or will this integration also need to support the certification process? DGII integrations succeed or fail based on compliance, reliability, and error handling—not just API connectivity. I can build a structured integration layer covering authentication, seed signing, XAdES-BES invoice signing, e-CF submission, status tracking, and ERP/POS integration through clean REST endpoints. The solution will be designed for both sandbox validation and production deployment, with complete documentation and source code handover. Let's review your current architecture and certification status first so we can eliminate compliance risks before development begins.

@arshkumar213

Hi, I can develop a complete DGII e-CF integration API covering seed authentication, digital certificate signing (.PFX/.P12), XAdES-BES XML signing, invoice submission, TrackID management, status inquiries, and robust error handling. I have experience with XML-based government integrations, secure API development, and ERP/POS connectivity. The solution will include clean REST endpoints, documentation, test cases, and source code ready for Sandbox and Production environments.

@mubashir021

Hola, veo que necesitas un desarrollador con experiencia en la integración de la facturación electrónica DGII y tengo el conocimiento necesario para llevarlo a cabo. Soy Mubashir, desarrollador especializado en API con 6+ años de experiencia en integraciones de sistemas ERP/POS. Entiendo que buscas implementar un API que permita la autenticación, generación y envío de facturas electrónicas al DGII, asegurando que todos los procesos de firma digital y manejo de errores estén cubiertos. 1. Primero, implementaré el proceso de autenticación con DGII, obteniendo la frase semilla y firmándola con el certificado digital para obtener el token necesario. 2. Luego, generaré el XML de la factura electrónica y lo firmaré digitalmente usando el formato XAdES-BES con el certificado correspondiente. 3. Después, enviaré la factura electrónica al endpoint de recepción del DGII y manejaré la respuesta para obtener el TrackID. 4. Finalmente, crearé un endpoint para consultar el estado de la factura utilizando el TrackID, asegurando una integración fluida con tu sistema. Aunque aún no estés seguro, estoy dispuesto a proporcionarte una propuesta detallada y un plan de proyecto sin costo alguno. Así, si decides trabajar con otro freelancer, tendrás un documento de referencia sólido. >>> My Work: https://www.freelancer.com/u/mubashir021 <<< Envíame un mensaje y hablemos de los detalles. Mubashir

@Vermapratham1234

As an experienced software developer specializing in API integration, I've successfully tackled complex projects similar to yours before. Most notably, I have robust experience in electronic billing in the Dominican Republic, including previous integrations with DGII. My thorough understanding of the entire authentication and invoice submission process will ensure the smooth operation of your system. Having knowledge of XML, digital signatures, .PFX certificates, and expertise with API integrations and ERP/POS systems further underscore my suitability for this project. In addition, my experience with DGII mean I am already familiar with essential endpoints such as /authentication/api/Seed and /reception/api/ElectronicInvoices. Over the years, I've consistently delivered high-quality work while maintaining open and clear communication channels with my clients. For your project, I will create a secure and functional DGII integration API that meets all your technical requirements. Additionally, I'll provide comprehensive documentation and source code alongside practical use cases, ensuring your team can easily manage and troubleshoot the system moving forward. Let me leverage my skills for your project’s success!

@ydvhitender

With an extensive background in API integration and a clear understanding of the DGII e-billing system, I am confident in my ability to deliver exceptional results for your project. Having successfully implemented numerous electronic billing integrations with the DGII over the past six years, I'm intimately familiar with every aspect of the process. This includes authentication, digital signing of XMLs, invoice submission, status inquiries, and handling errors. My experience in working with XMLs, digital signatures, .PFX certificates, and DGII endpoints such as /authentication/api/Seed, /reception/api/ElectronicInvoices etc., positions me well to develop a robust, efficient API for your ERP/POS system. Additionally, my expertise with Node.js and Python will ensure high-quality code that's both clean and maintainable. What sets me apart is not just my technical expertise but my ability to genuinely understand your business problem and provide tailor-made solutions. I'm not just here to write code; I'm here to build smart, scalable products that save you time and costs and truly solve your problems efficiently. Let's collaborate on this project to create a efficient working solution for you."