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Ya tengo los XML de facturas validados en el entorno de preproducción de la AEAT y solo me falta el cliente que los haga llegar al sistema verifactu mediante el servicio SOAP oficial. Necesito que desarrolles esa pieza: • El envío ha de firmarse con mi certificado P12 y funcionar tanto con el servicio de pruebas como con el de producción (cambiar la URL y el certificado debe bastar). • Prefiero que esté escrito en Delphi 7; si dominas otro lenguaje lo consideraré, siempre que me entregues el código fuente y un ejecutable listo para usar. • Tras cada petición quiero que el programa guarde la respuesta completa del web-service en un fichero en disco (XML o texto tal cual lo devuelva la AEAT). Con eso ya podré leer confirmaciones de recepción, estados de procesamiento o los errores detallados que puedan venir. Aceptar el trabajo implica: 1. Generar el SOAP request exactamente con el esquema verifactu. 2. Firmar/firmar digitalmente con el P12 y manejar la capa TLS. 3. Entregarme proyecto, código fuente y un pequeño manual de uso donde explique cómo cambiar de preproducción a producción y dónde colocar el certificado y los XML a enviar. Si ya has conectado antes con la AEAT o manejas Delphi para web-services será un plus. Espero tu propuesta.
ID del proyecto: 40015761
28 propuestas
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Activo hace 17 días
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28 freelancers están ofertando un promedio de €476 EUR por este trabajo

Hi I have experience building SOAP clients for Spanish administrations, and I can deliver a Delphi 7 executable that signs XMLs with your P12 certificate, handles TLS communication, and sends valid requests to AEAT’s Verifactu service. I’ll generate the SOAP envelope according to AEAT’s official XSD, and structure the app so switching between preproduction and production is as simple as changing the endpoint and certificate. After each submission, the full response (XML or plain) will be saved to disk for traceability. You’ll receive the full source code, compiled executable, and a clear user guide covering certificate setup and XML placement. Thanks, Hercules
€500 EUR en 7 días
6,8
6,8

As a highly skilled and experienced software developer with a strong background in SOAP integration, I am confident in my ability to fulfill each aspect of your project. My expertise extends over 13 years, during which I have honed my skills specifically in Python and C-based developments, precisely the languages that underlie Delphi 7. Apart from my coding capabilities, I'm well-versed in API integration and other technical responsibilities required for this project. Notably, my experience extends to working with government APIs like AEAT's prior to this project. This means I already fully comprehend the unique requirements and security provisions essential when dealing with such services – including managing certificates for signing and ensuring TLS security protocol compliance. Moreover, I excel in the automation aspect of software development you require for saving complete web-service responses in separate XML files after each request. My built-in capacity for front-to-back code management will ensure that not only do youreceive a high-quality product but also comprehensive documentation on how to alter production URLs and implement certificates easily. I'm excited about this opportunity as it allows me the privilege of leveraging my specialized skills while aiding you in achieving your project goals.
€500 EUR en 1 día
7,0
7,0

Hola estimad@, yo puedo ayudarte con tu proyecto de SOAP y verifactu utilizando C# o Python, Contactame via chat para discutir los detalles. Saludos.
€550 EUR en 7 días
6,7
6,7

Being a Latin American-based software development company, we deeply understand the implications and requirements of interacting with local tax authorities. Not only do we boast over 10 years of experience in Delphi language -- making us your perfect fit -- but we have built numerous solutions that integrate with SOAP services and handle security requirements just like this one. Our understanding of the AEAT environment as well as handling P12 certificate and TLS would ensure a seamless implementation from the pre-production to production stage. Moreover, our comprehensive approach doesn't stop at delivering just a working product; we also provide you with detailed documentation to ease your integration process moving forward. Beyond fulfilling each item on your checklist, our primary aim is to provide future-ready solutions. Hence, in addition to generating the SOAP request with Verifactu's specific schema and signing it digitally, we also employ AI-powered QA tools that save responses per your requirement -- giving you precise details for each step of data transmission. Finally, as an added advantage, we possess prior experience working on AEAT-related projects which will allow us to deliver efficiently and effectively without compromising security or quality. Ready to take on this task? Let's connect & get started today!
€300 EUR en 3 días
6,3
6,3

Hi there, i have 17 years of experince in web development. I can write the code to sumit the xml to soap service using delphi. Please send a message to discuss further with me. Looking forward to work for you. Best Regards,Syed
€250 EUR en 4 días
6,0
6,0

Hola, Puedo desarrollar el cliente SOAP que necesitas para enviar tus facturas a Verifactu, usando Delphi 7 y tu certificado P12. Incluye: Generación del SOAP request según el esquema Verifactu. Firma digital con P12 y manejo seguro TLS. Funciona en preproducción y producción cambiando solo URL y certificado. Guardado de todas las respuestas del web-service en fichero XML o texto. Entrega de código fuente, ejecutable y manual de uso. Tengo experiencia con servicios SOAP, certificados digitales y procesos de la AEAT. Puedo empezar de inmediato y entregar un cliente totalmente funcional y documentado. Saludos,
€500 EUR en 21 días
5,4
5,4

Hola, puedo desarrollar el cliente que envíe tus XML ya validados al sistema Verifactu respetando exactamente el esquema SOAP oficial de la AEAT. Lo implementaré en Delphi 7 (o, si lo prefieres, en Python), firmando con tu certificado P12 y dejando parametrizadas la URL y la ruta del certificado para cambiar fácilmente entre preproducción y producción. Tras cada petición, el programa guardará en disco la respuesta completa del web-service (XML/texto) para que puedas revisar confirmaciones, estados y errores sin depender de logs externos. Te entregaré proyecto, código fuente y un pequeño manual explicando la configuración, dónde colocar certificados/XML y cómo lanzar los envíos. Si es necesario, también puedo añadir trazas básicas y mensajes de error claros para facilitar la puesta en marcha inicial.
€500 EUR en 7 días
4,9
4,9

Un gusto conocerte Oskitar67, Los requisitos de su proyecto coinciden con mis áreas de trabajo y habilidades, para presentarme. Mi nombre es Anthony Muñoz y soy el ingeniero principal de la agencia de TI DS Pro. he trabajado para más de 10 años como ingeniero de desarrollo de software y Full-Stack y he realizado con éxito múltiples trabajos. Eso Será un placer trabajar juntos para hacer realidad su proyecto. No dude en ponerse en contacto conmigo, saludos.
€890 EUR en 7 días
4,6
4,6

Hola, gracias por considerar mi propuesta para desarrollar el cliente SOAP para Verifactu. Tengo experiencia en Delphi y he trabajado previamente con la integración de servicios web, incluyendo la validación de datos con la AEAT. Puedo asegurar que el envío de XML se firmará correctamente con tu certificado P12 y entregará las respuestas del servicio en formato adecuado. Me gustaría entregar el proyecto en un plazo de 10 días, incluyendo un manual de uso claro para que puedas hacer la transición a producción sin problemas.
€250 EUR en 3 días
4,3
4,3

Hi Oscar S.. I am very excited with your project because I have completed similar project recently. The skills required for your project are my main specialty.(Web Services, Software Architecture, Python, Delphi, XML, Documentation, API Integration and Software Development) I can handle this perfectly and have abundent experiences. Please confirm that I am one of the best fits for you and drop me a message for further discussion. Thanks and Best Regards.
€500 EUR en 5 días
4,0
4,0

Hi, I am a full-stack developer with 8 years of rich experience in software development, with a background in integration and desktop/web services. I am familiar with Delphi 7, SOAP/Web Services, XML, P12 certificate signing, TLS/HTTPS, API Integration, XML digital signature handling, and documentation. I'm an individual freelancer and can work on any time zone you want. I will implement a Delphi SOAP client that signs requests with your P12 certificate, supports switching between preproduction and production by changing the URL/certificate, and saves each web-service response to disk (XML/text) for your records. I can deliver source code, a ready-to-run executable, and a short manual explaining how to place the certificate, switch environments, and send the XMLs. A simple solution is to generate the SOAP request from the verifactu schema (WSDL/XSD), use Delphi’s WSDL importer or a lightweight HTTP/SOAP library (Indy or Synapse) with TLS, apply the P12 digital signature during the request flow, and write responses to timestamped files—then provide the project, exe, and usage notes. Please contact me with the best time for you to have a quick chat. Looking forward to discussing more details. Thanks. Emile.
€250 EUR en 7 días
3,9
3,9

Hi, I’ve thoroughly reviewed your project requirements and understand the importance of a secure, efficient, and reliable solution for submitting validated invoice XML files to the Verifactu system. At Mkaits Technologies, we specialize in developing precise and secure integrations for financial and governmental systems. Our expertise in web services, digital signing, and working with secure certificates ensures we can deliver exactly what you need. We have experience working with Delphi and other languages, and we focus on delivering clean, ready-to-run source code along with comprehensive documentation. Our approach will involve creating a Delphi 7 component that constructs the SOAP request following the Verifactu schema. We will incorporate the digital signing process with your P12 certificate, ensuring the request is properly signed for both testing and production environments. The solution will dynamically switch URLs and certificates based on the environment you choose. Additionally, the program will save the full response after each submission to help you track confirmations or errors easily. 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 the chat. Best regards, Mughiraa
€500 EUR en 7 días
4,1
4,1

Tenga buen dia, ya e trabajo sistema de verificaciones de españa y bolivia, firmas digitales con p12 o pfx. generalmente uso delphi embarcadero 12. para desarrollos delphi. si bien me gustaria saber, que le es mas comodo al final, tener una libreria que se integre a su actual proyecto. o tener una API. que simplifique el proceso. o bien una WEB+API tanto para el proceso como para gestionar los servicios y activar modos "Piloto" o de Pruebas. la tecnologia a usar seria en algun stack que le sea mas comodo. Puede ser en Delphi Community edition 12 o C# 14 , dotnet 10 +blazor o Nodejs o PHP con conexion a base de datos MYSQL de ser necesario. ahora si planea montarlo en un VPS de su propiedad o gestion le recomendaria ,c#,NodeJs o Php, eso por que los costos de un VPS linux son menores a uno windows. tambien aprovechando el uso de Docker para simplificar el montando. ahora si planea adaptarlo o montarlo donde su cliente, lo recomendado seria Delphi o C# ya q son lenguajes compilados. para mantener privacidad al codigo y la mayoria trabaja en entornos windows. si quiere coordinar mas detalles. puede escribirme al chat
€450 EUR en 21 días
3,8
3,8

Hi there! I hope this message finds you well! I’m thrilled to submit my proposal for your project. With over 7 years of experience in XML, Documentation, Delphi, I’m confident in my ability to deliver high-quality solutions that meet your needs. I’m ready to dive into your project and bring your vision to life. Let's connect and discuss how I can contribute to your success. I’m available for a chat at your earliest convenience. Best regards, Dorian
€500 EUR en 2 días
3,1
3,1

Hey Oscar S., I just finished reading the job description, and I see you are looking for someone experienced in Python, Web Services, Software Development, Documentation, API Integration, Delphi, XML and Software Architecture. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have a few questions: 1. Are all these requirements? If not, please share more detailed requirements. 2. Do you currently have anything done for the job, or does it have to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback in the last 5-6 years. 3. You will find 5-star feedback on the last 100+ major projects, which shows my clients are happy with my work. Timings: 9 am - 9 pm Eastern Time (I work as a full-time freelancer) Portfolio Link: https://www.freelancer.com/u/syeds273 I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further. Regards, Syed.
€250 EUR en 6 días
1,6
1,6

Your SEARCH ends here! I understand the need to securely send validated XML invoices to the verifactu system via SOAP. With expertise in Delphi 7, I will ensure seamless integration with both test and live services, while logging all responses for easy monitoring. I have 6+ years of experience in developing SOAP integrations and handling digital certificates, making me the perfect fit for this task. Open a chat with me and lets discuss more, worst that can happen is a free consultation. Regards, Thomas
€500 EUR en 7 días
0,7
0,7

Hi there, I’m pumped about the chance to work on the Delphi SOAP Client for Verifactu. I’ve got solid experience with Delphi, especially when it comes to web services and handling SOAP requests. I can totally whip up the client you need to send those validated XML invoices to Verifactu, sign them with your P12 certificate, and manage both test and production environments like a pro. I’ll ensure the SOAP requests are spot on with the Verifactu schema and will make sure the responses are saved properly for your review. Plus, I’ll throw in a simple manual so you can switch between environments without breaking a sweat. Let’s make this happen! Best regards, Uros S
€500 EUR en 7 días
0,0
0,0

Having worked extensively in full-stack development and specializing in API development and system integration, I have the technical proficiency to successfully take on your project. Although Delphi 7 is your preferred language, my deep-rooted understanding of other back-end programming languages - .NET, Python and Java - can ensure a smooth delivery that adheres precisely to your expectations. Your distinct needs for the SOAP interface align perfectly with my skillset. I have a comprehensive understanding of TLS and working with certificates, which will allow me to leverage your P12 certificate efficiently and navigate seamlessly between production and pre-production modes. Furthermore, my experience in building cloud-native solutions will be invaluable in saving responses locally post each request for inspection purposes. Last but not least, I prioritize client satisfaction above all else. I will not only deliver the finalized project to you but also provide comprehensive documentation on how to use it, transforming the complex into simple. If you are looking for someone who has both the technical expertise and a keen eye for detail that your project demands, then look no further. Let's get started!
€500 EUR en 7 días
0,0
0,0

Hi Oscar S., I have carefully reviewed your project requirements regarding the XML invoice delivery to the AEAT system via the official SOAP service. I understand you need a solution that effectively manages certificate signing and handles requests for both testing and production environments. I am Kanzah Afaq, a software developer with over 7 years of experience specializing in XML, Python, Delphi, Software Architecture, and API Integration. My expertise in Delphi and prior experience with web services for the AEAT will ensure a seamless integration for your project. Here are some relevant portfolio links for your review: https://www.freelancer.com/u/KanzahAfaqAhmad I am confident in delivering a solution that meets your specifications, including a comprehensive manual for smooth transitions between environments. Looking forward to contributing to your project. Thanks, Kanzah Afaq
€500 EUR en 7 días
0,0
0,0

Hi Oscar S., I understand you're looking for a solution to send validated XML invoices to the Verifactu system via the official SOAP service, with a specific focus on using your P12 certificate for signing. I can help you develop this piece effectively. I am a developer with over [X years] of experience in XML, Python, Delphi, Software Architecture, Software Development, Web Services, Documentation, and API Integration. My expertise in Delphi, along with previous experience connecting with AEAT, aligns perfectly with your requirements. Here are some relevant portfolio links showcasing my work: https://www.freelancer.com/u/hassaan7766 I’m committed to delivering the SOAP request per the Verifactu schema, handling digital signing and TLS layer management, along with a complete project and user manual. Looking forward to the opportunity to work together. Thanks, Regards, [Your Name]
€250 EUR en 3 días
0,0
0,0

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