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Development of a WordPress plugin for integration with Diia - verification system

PHP, Web Programming — incorrectly specified categories?

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A WordPress plugin needs to be developed for integration with the official Diia API (integration.diia.gov.ua) to create a supplier verification system on the B2B platform. The plugin must allow only Ukrainian manufacturers to undergo verification through Diia and receive the badge "Verified Factory".

Main Requirements

Access Restrictions:

The verification function is available only to users from Ukraine
Verification by user address (Ukraine) OR "Vendor" status on the site
Automatic determination of the right to verification upon registration
Blocking access for users from other countries

Verification Functionality:

Integration with Diia validation API (https://integration.diia.gov.ua/validation.html)
Scanning QR codes from the Diia app for instant document verification
Automatic verification of the authenticity of digital documents
Multi-level verification system (basic → extended → premium)

Badge System:

Automatic assignment of the "Verified Factory" badge after successful verification
Display of verification status on supplier profiles
Visual trust indicators for buyers
Ability to update verification status

Technical Requirements:

Compatibility with WordPress 5.8+
Support for multilingualism (Ukrainian, English, German)
Responsive design
Secure storage of verification data
Integration with WordPress role system (verification of "Vendor" status)

Verification Access Logic

Access Conditions:

IF (user_address == "Ukraine" OR user_role == "Vendor")
THEN show_verification_button()
ELSE hide_functionality()

System Checks:

Geographical Check: analysis of IP address and specified address in the profile
Status Check: verification of "Vendor" role in the WordPress system
Double Validation: the user must meet at least one condition

Use Cases

For Ukrainian Suppliers/Vendors:

The system automatically determines the right to verification
The user sees the "Undergo Verification" button
The system redirects to the Diia interface
The user shows the QR code from the Diia app
Upon successful verification, a badge is assigned

For Other Users:

The verification functionality is hidden
A message "Verification is available only for Ukrainian suppliers" is displayed
The option to apply for "Vendor" status

Additional Features

Multi-sharing of documents: obtaining multiple documents in one request
Anti-bot protection: authorization through Diia without sharing personal data
Diia.Signature: ability to electronically sign documents
Automatic updates: periodic verification status checks
Admin panel: management of access rights to verification

Technical Details

API Integration:

Use of the official API integration.diia.gov.ua
Processing of QR codes and 13-digit numbers
Real-time validation of digital documents
Secure storage of access tokens

Database:

Table for storing verification statuses
Table for user access rights
Logging of all verification attempts
Linking with WordPress users

Security:

Encryption of sensitive data
Protection against CSRF attacks
Validation of all incoming data
Logging of security events
Protection against circumvention of geographical restrictions

Proposals 15

Sergey S.

73 0

Budget: 27000 UAH Deadline: 30 days

Good day. I have experience in creating internet resources of varying complexity, as well as solving problems, improvements, and creating websites on OpenCart, WordPress, and others.
I use PHP, Python, and other languages and technologies depending on the task.

I can provide examples of my work if needed.
Write to me, and we will discuss the details.

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Andrii G.

25 0

Projects 22
Rating -
Rating 988

Budget: 27000 UAH Deadline: 15 days

Hello, I have significant experience of 10+ years in developing custom solutions for WP as well as 5+ successful integration cases with Diia. I am ready to complete the project quickly and efficiently, according to the specified requirements.

Anton V.

6 1

Projects 6
Rating -
Rating 411

Budget: 700 UAH Deadline: 1 day

Ready to take on the development of a WordPress plugin for integration with Diia. I have experience working with WordPress and API integrations. Please write to me about the project details so we can discuss technical requirements and budget.

Sergey Golovko

33 0

Budget: 27000 UAH Deadline: 30 days

Hello. I am ready to complete your project after agreeing on the terms of reference. Final deadlines and price - after agreement. I can also offer technical support and assistance in the future.

Tetiana S.

110 0

Budget: 27000 UAH Deadline: 25 days

Hello, Oleksandr!
We will develop a WordPress plugin for integration with Diia - the verification system.
Evaluation after clarifying the details.
Best regards, Tetiana.

Artur Klimenko

21 0

Budget: 27000 UAH Deadline: 20 days

Hello 👋! I am a highly qualified web developer with over ✅ 7 years of experience in backend development and modern web technologies. I work with New Construction Corporation Uzhhorod, Remax, Land Rover, Crazy Price Carpets, Confidence CRM, Butam Lt. My stack includes:

✅ Frontend: HTML, CSS, JavaScript, React.js, Vue.js, Angular
✅ Backend: PHP, Laravel, CodeIgniter, Python, Django, Flask, Node.js, Next, Nuxt
✅ CMS: WordPress(Woo), Prestashop, Shopify, OpenCart, BigCommerce
✅ Databases: MySQL, PostgreSQL
✅ Other skills: Git, API integration

Recent projects:
✔️ https://jashantoor.com/
✔️ https://novobudova.pro
✔️ https://stxtrade.com/
✔️ https://boostylabs.com
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✔️ https://confidence-crm.com
✔️ https://louca360marketing.com
✔️ https://salehub2b.eu
✔️ https://books.youeasystart.com
✔️ https://ukrfix.com
✔️ https://sweet-sdpearls.de/
✔️ https://lottobingom.com/categories/hot
✔️ https://aquahub.org.ua
✔️ https://boostylabs.com
✔️ https://ol.zp.ua
✔️ https://smt-industry.com
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✔️ https://emporio-sports.cz

Why choose me?
✔️ Fast and quality execution: Your tasks will be completed on time with impeccable quality.
✔️ API integration: Need seamless integrations of third-party APIs? I’ve got you covered.
✔️ Custom solutions: I take your ideas and turn them into successful web solutions tailored to your business needs.

Let’s collaborate and create something amazing together!

Elizaveta Lazarenko

0 0

Projects -
Rating -
Rating 146

Budget: 27000 UAH Deadline: 30 days

Good day!
We will develop a WordPress plugin for integration with the Diia API.
We will ensure the verification of Ukrainian suppliers according to the requirements.
We will automate the process of obtaining the "Verified Factory" badge.
We will consider security, event logging, and admin settings.
We work officially, payment to an individual entrepreneur with a contract!
Ready to discuss technical details!

Aleksandr M.

38 0

Budget: 27000 UAH Deadline: 26 days

It is necessary to discuss the details for creating a plugin, thank you.
Experience in creating plugins and integrations.

Roman Diachuk

2 0

Projects -
Rating -
Rating 953

Budget: 27000 UAH Deadline: 21 days

Hello! I wanted to clarify two points: do you have access to the account integration.diia.gov.ua (keys / sandbox), and has the "Vendor" role already been implemented on your site — for example, through WooCommerce/Dokan or a custom solution?

I have been working with WordPress for over 9 years, wrote plugins, made integrations with government and third-party APIs, set up QR scanning on the frontend, implemented secure token storage with encryption, logging, and cron tasks for periodic checks. I also have experience with multilingualism, setting up roles and access rights, as well as storing statuses in custom tables.

If there is access to the sandbox/keys of Diia and a brief description of the Vendor role implementation, I can prepare a technical plan and estimate.

Dmitry Shevchuk

8 0

Budget: 2000 UAH Deadline: 30 days

Good day, I have reviewed your specifications, and I can say that it will take 100-120 hours of development (which does not match the maximum budget of your project). If you choose me as the executor, we can discuss the details.

I have solid experience in developing custom solutions/plugins for WordPress.
I will be waiting for your feedback.

Oleksandr K.
Ukraine

Projects 13
Rating 5.0
Rating 267

Development of a WordPress plugin for integration with Diia - verification system

Main Requirements

Access Restrictions:

Verification Functionality:

Badge System:

Technical Requirements:

Verification Access Logic

Access Conditions:

System Checks:

Use Cases

For Ukrainian Suppliers/Vendors:

For Other Users:

Additional Features

Technical Details

API Integration:

Database:

Security:

Sergey S.

Andrii G.

Anton V.

Sergey Golovko

Tetiana S.

Artur Klimenko

Elizaveta Lazarenko

Aleksandr M.

Roman Diachuk

Dmitry Shevchuk

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