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Potrebna mi je dorada postojeće PHP skripte za slanje e-računa putem Moj-eRačun API-ja. Imam gotovo rješenje koje koristimo za izradu ponuda i računa. Tražim developera s iskustvom u PHP-u i radu s API-jem (prednost: poznavanje Moj-eRačun sustava). Molim okvirnu cijenu i procjenu potrebnog vremena.
Project ID: 40415311
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150 freelancers are bidding on average €434 EUR for this job

As an experienced PHP developer with a strong background in API integration, I'm confident that I can seamlessly tweak your existing script to leverage the Moj-eRačun API for e-invoice distribution. My name is Muhammad Awais, and I lead a capable team at ZAWN Tech offering comprehensive IT solutions. We have catered to diverse client needs over the years, this has sharpened our skills, including our proficiency in PHP and sound command of APIs. In addition to our extensive experience with backend development using MySQL and PHP, we’ve worked on varied web and SaaS projects involving Hibernate ORM, Jenkins CI/CD technology, and Amazon AWS or similar cloud-based service. These skills will be instrumental in providing you not just the solution you need but also fostering its growth. Another strength of ours is the ability to handle full-stack development with ease; therefore, integrating the Moj-eRačun API will be well within the scope of our capabilities. In conclusion, be rest assured that ZAWN Tech offers more than just programming expertise; we bring stability and peace of mind to your project through clear communication, planning and a commitment to quality long-term support.
€750 EUR in 7 days
9.3
9.3

Hello, As an established web service provider with a reputation for quality and innovation, we are uniquely equipped to handle your project. With years of experience in PHP development and a strong focus on API integration, we have successfully executed numerous projects similar to yours. Our proficiency and understanding of APIs make us the ideal choice for completing the necessary adjustments to your existing script. Not only do we have an exemplary command over PHP, but we also have a deep understanding of the intricacies of Moj-eRačun API itself, which sets us apart from other developers you may consider. By leveraging this knowledge, we can provide efficient solutions tailor-made for your e-invoicing needs. In terms of time and budget, we value professionalism and transparency above all. We understand the importance of delivering projects within deadlines without compromising on quality. Trust our proven track record and let us deliver exceptional results for you. Thanks!
€350 EUR in 4 days
8.6
8.6

Hi, This is Elias from Miami. I have gone through your project description and understand you’re looking for a PHP developer to enhance your existing script for sending e-invoices through the Moj-eRačun API. It sounds like an interesting project that could streamline your invoicing process! I have experience in PHP and API integrations, having worked on similar projects that required efficient backend solutions. I can help refine your script to ensure it functions smoothly with the API. To approach this, I will first review your existing script to identify any areas that need improvement. Then, I’ll implement the necessary changes to integrate the Moj-eRačun API effectively, ensuring that the functionality meets your requirements. I have a few questions to get a better understanding: Q1 – What specific features are you looking to add or improve in the existing script? Q2 – Are there any particular challenges you’ve faced with the current implementation? Q3 – Do you have a preferred testing environment for the integration? Looking forward to hearing from you.
€500 EUR in 3 days
8.3
8.3

Hi, To enhance your existing PHP script for sending e-invoices via the Moj-eRačun API, I'll refine the current solution you have for creating offers and invoices. This will include: - Reviewing the existing PHP script. - Integrating the Moj-eRačun API for e-invoice sending. - Testing the functionality to ensure it works as expected. I'll handle the work efficiently, ensuring a smooth integration with the API. Ready to start once you provide access to the current script and any relevant API documentation. Thanks!
€300 EUR in 1 day
8.3
8.3

Hi, I have experience in PHP and API integration, specifically with Moj-eRačun. I can enhance your existing PHP script to send e-invoices through the Moj-eRačun API. Let's discuss the details further. Please start the chat so we can discuss the project requirements in detail. Regards, Sai Bhaskar
€320 EUR in 10 days
7.8
7.8

HI! I am an expert web programmer. I have a lot of work experience in Laravel, Codeigniter, PHP, Wordpress, JavaScript, HTML, Vuejs, Reactjs, React Native, and MySQL.I can start right away. I want to discuss this project in detail. Please contact me to discuss more regarding this project. For more details Chat with me
€400 EUR in 5 days
7.5
7.5

Hello, I understand you need to refine an existing PHP script to send e-invoices via the Moj-eRačun API, building on your current setup used for quotes and invoices. My approach is practical and scale-ready: review the current integration, map Moj-eRačun endpoints to your workflow, implement robust error handling, and add clear logging for traceability. I’ll ensure secure credential handling, implement data validation aligned with Moj-eRačun requirements, and optimize the PHP code for reliability, performance, and maintainability. The result will be a clean, repeatable integration you can reuse for future e-invoice sending, with clear instructions for setup and testing. What is your current Moj-eRačun API version, and do you have any custom fields or mappings that must be preserved in the e-invoice payload? Do you require a staging environment for testing with Moj-eRačun, and how will credentials be managed across environments? What level of error reporting and retry strategy do you expect (e.g., exponential backoff, max retries)? Are there any security or audit requirements (logging of payloads, access controls) that must be met? Do you have a preferred timeline or milestones for the integration and testing phases? Best regards,
€750 EUR in 11 days
7.4
7.4

Hi, We’ve developed multiple solutions that integrate with the Moj-eRačun API, including a fully automated eRačun solution that sends invoices directly to the API. We also have extensive experience with PHP and Laravel, having worked with it since version 5.5. We can start with a quick 10-minute introductory call to discuss your project in more detail and ensure we’re aligned. This way, I can provide you with an accurate estimate and timeline. Let’s schedule a call at your convenience—I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best regards, Adil
€482.35 EUR in 7 days
7.5
7.5

I've done multiple API integrations with Croatian and EU invoicing systems, and Moj-eRačun is one I'm familiar with. Here's what I'll do: - Analyze your existing PHP invoice/offer script to understand the current data structure - Integrate Moj-eRačun API endpoints for sending e-invoices directly from your system - Handle authentication, request signing, and error handling properly - Test with real sandbox/test credentials before going live - Document the integration clearly so you can manage it independently You already have the solution in place — this is purely about extending it with API connectivity. That means less risk, faster delivery, and a cleaner result. Timeline: 3–5 days. Happy to review your existing code first and give you a precise estimate before we start.
€500 EUR in 7 days
8.2
8.2

Hi - Integracije e-računa ne krenu krivo zato što PHP ne može poslati zahtjev, nego kada lokalni račun, Moj-eRačun payload, API odgovor i status dokumenta nisu povezani u jedan jasan tok. Stvarni flow treba biti: korisnik izradi račun ili ponudu - PHP skripta pripremi podatke - Moj-eRačun API primi zahtjev - odgovor se spremi lokalno - status slanja se može provjeriti - greška se prikaže dovoljno jasno za ispravak. Ovo izgleda kao mala dorada, ali postaje nekonzistentno kada se validacija i status obrade rade samo po “request sent” logici. Neusklađen API odgovor može dovesti do unexpected results in real use, so I handle it by checking response codes, document status, and local invoice records together. The part to get right early is the invoice field mapping, because it affects usability and correctness.
€500 EUR in 7 days
7.2
7.2

BRZA I SIGURNA DORADA PHP SKRIPTE ZA MOJ-eRAČUN—BEZ PREKIDA U RADU. Imam 12+ godina iskustva u PHP-u i integracijama API-ja (fakturiranje, ERP, e-računi), uključujući rad s REST/SOAP servisima i validacijom poslovne logike. Kako ću pristupiti: Analiza postojeće skripte (ponude/računi) Integracija / dorada prema Moj-eRačun API specifikaciji Mapiranje podataka (kupac, stavke, PDV, formati) Obrada grešaka + validacija prije slanja Logiranje zahtjeva/odgovora za lakše praćenje Testiranje (sandbox/produkcija) Funkcionalnosti: Slanje e-računa putem API-ja Status provjera i povratne poruke Stabilan i održiv kod bez rušenja postojećeg sustava Procjena: Vrijeme: 2–4 dana (ovisno o stanju koda i API zahtjevima) Cijena: €150 – €300 (fiksno nakon pregleda) Ako već imate API dokumentaciju i pristup, mogu krenuti odmah. Slobodno pošaljite detalje da dam točnu procjenu.
€500 EUR in 7 days
7.5
7.5

Hello, I am very interested in your project requiring modifications to an existing PHP script for sending e-invoices via Moj-eRačun API. I understand that you are looking for a developer with expertise in PHP and API integration, particularly with knowledge of the Moj-eRačun system. With my strong background in MySQL, PHP, Backend Development, Web Development, API Integration, and Software Architecture, I am confident in my ability to successfully complete this project. I plan to enhance the current script to seamlessly integrate with the Moj-eRačun API for efficient e-invoice processing. - MY WORK STATS: ✨ https://www.freelancer.com/u/XanvraTECH I would love to discuss the project further and explore how we can collaborate effectively. Best regards, Warda Haider
€250 EUR in 8 days
6.8
6.8

Hi I can help with refining your existing PHP e-invoice script for Moj-eRačun API integration. The main issue in such systems is usually inconsistent API handling, XML structure mismatches, or incomplete error management leading to failed invoice submissions. I have strong experience in PHP development, REST/XML API integrations, and secure cURL-based communication with external accounting systems. I will review and refactor your current implementation to ensure full compatibility with Moj-eRačun endpoints and correct invoice payload formatting. I will also improve authentication handling, request validation, and response parsing to ensure stable and predictable submissions. Additionally, I will implement proper logging and fallback error handling so failed invoices can be traced and retried safely. The final result will be a clean, maintainable, and production-ready integration aligned with best practices for financial data exchange. I will also ensure the codebase is structured so future updates or API changes can be applied easily without breaking existing functionality. Thanks, Hercules
€500 EUR in 7 days
6.9
6.9

Hi there, I like how you have outlined your project description. You need enhancements to an existing PHP script that sends e-invoices through the Moj-eRačun API. Your solution is almost complete, and you seek a developer experienced in PHP and API integration, ideally with knowledge of the Moj-eRačun system. With over 5 years of experience in PHP development and multiple projects integrating various invoicing APIs, I am confident I can efficiently improve your script to ensure smooth and reliable communication with the Moj-eRačun API. Although I have not worked specifically with Moj-eRačun, my API expertise and rapid learning ability will allow me to familiarize myself quickly and provide a robust solution. I will deliver clean, maintainable code aligned with your existing setup, minimizing disruption and saving you time on future updates. My proposed timeline is one week, allowing thorough testing and adjustments to meet your expectations. Please feel free to reach out to discuss details or clarify requirements, and let's work together to finalize your invoicing system with the enhancements you need.
€525 EUR in 7 days
6.3
6.3

As an experienced full-stack developer with a specialization in PHP and web development, I am confident that I can handle the job of integrating Moj-e-Račun API into your existing PHP script flawlessly. Over the past 12 years, I have amassed significant experience in building diverse types of applications and successfully delivered over 100 projects globally. My expertise includes not just proficiency in utilizing the Moj-e-Račun system, but competent PHP programming too - essential for full API integration. In addition to my advanced proficiency in PHP and MySQL, I also have a comprehensive grasp on full-stack web development. This means that my contribution to your project extends beyond just PHP integration. Whether it's backend systems, databases or even optimizing speed and performance - you've got a one-stop-shop in me. Furthermore, my deep understanding of APIs will be particularly valuable in ensuring smooth third-party service integrations as well. When it comes to project handling, my clients have valued my quick understanding of requirements which usually leads to less back-and-forth communication. This means swifter turnaround times for your project. Alongside this efficiency, you can expect a commitment to on-time delivery of work with no compromise on quality. Your satisfaction is my utmost priority and thus guaranteeing clean, scalable & production-ready code is a given. So let's get started immediately and create a solution that grows your business!
€250 EUR in 7 days
7.0
7.0

Hello! I carefully reviewed your project description regarding the integration of the Moj-eRačun API for sending e-invoices. I understand the importance of this task and am eager to assist you in refining your existing PHP script. With over 10 years of experience in PHP development and API integration, I am confident in my ability to enhance your system effectively. I have worked on similar projects, including a custom invoicing system for a local service provider, a web-based application for managing e-commerce transactions, and a backend solution for a logistics platform that streamlined their invoicing processes. Each of these projects involved extensive API integration and optimization. Could you please clarify the following questions to help me better understand the project? 1. Are there specific functionalities or features you want to prioritize in the integration? 2. What is the current state of your PHP script, and are there any existing issues you want me to address? I’m looking forward to the opportunity to collaborate with you and ensure a seamless integration that meets your business needs. Let’s connect and discuss this further! Best regards!
€500 EUR in 4 days
6.5
6.5

Hello, I will enhance the existing PHP script for sending e-invoices through Moj-eRačun API. With experience in PHP and API integration, I will customize the solution to seamlessly generate invoices. Let's discuss further details to ensure a successful integration. Thanks
€390 EUR in 10 days
6.0
6.0

Zdravo!!! ★★★★ (PHP API integracija za Moj-eRačun sistem e-faktura sa nadogradnjom postojeće skripte) ★★★★ Razumijevanje projekta: Već imate PHP sistem za ponude/fakture i potrebno ga je proširiti integracijom Moj-eRačun API-ja za slanje e-faktura. Zadatak je da se vaša trenutna skripta glatko poveže sa API-jem. ⚜ Integracija Moj-eRačun API-ja u postojeći PHP kod ⚜ Sigurno rukovanje podacima i validacija zahtjeva ⚜ Sinhronizacija MySQL podataka sa sistemom faktura ⚜ Rješavanje grešaka i evidentiranje odgovora API-ja ⚜ Optimizacija koda i čista struktura ⚜ Testiranje za pouzdanu isporuku faktura ⚜ Dokumentacija za buduća ažuriranja Imam više od 6 godina iskustva u PHP i API integracijama, uključujući sisteme naplate. Mogu brzo razumjeti vašu trenutnu postavku i implementirati stabilan API tok. Čist i održiv kod je uvijek moj fokus, iako su ponekad kasnije potrebne male izmjene :) Procijenjeno vrijeme 4-6 dana. Hajde da razgovaramo o detaljima i počnemo uskoro. Srdačan pozdrav, Farhin B.
€256 EUR in 10 days
6.5
6.5

Vidim da vam treba dorada postojeće PHP skripte za slanje e-računa kroz Moj-eRačun API. Radio sam s klijentima koji su integrirali različite hrvatske e-račun sustave te sam pomogao da njihove skripte pouzdano komuniciraju s API-jima bez grešaka. Ako je gotovo rješenje već na mjestu, mogu brzo pregledati kod i identificirati gdje treba prilagodbe za Moj-eRačun. Često se radi o sitnim izmjenama u autentikaciji ili formatu podataka koje API očekuje. Prije početka, želite li da provjerim postoji li neki specifični problem s trenutnim slanjem računa? Također, je li skripta namijenjena za testno okruženje ili već live slanje? Ovo pomaže točnije procijeniti vrijeme i cijenu. Procjena: oko 6 do 10 sati, ovisno o opsegu dorade. Cijena uključuje analizu, doradu i testiranje slanja računa. Spreman sam odmah krenuti.
€500 EUR in 7 days
5.9
5.9

Hi, I have strong experience working with PHP backend systems and REST API integrations, including invoice/e-document workflows, structured data mapping, and financial system APIs similar to Moj-eRačun, where reliability and correct payload formatting are critical. For this project, I can extend your existing PHP script to properly integrate with the Moj-eRačun API for sending e-invoices, ensuring correct request structure, error handling, and response validation, while keeping your current system for offers and invoices unchanged and stable. I can also review the architecture to make sure future updates are easy to maintain. Best regards, Juan
€350 EUR in 5 days
5.9
5.9

Rovinj, Croatia
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