Fabrice Mainguené

• Product Owner •Fabrice Mainguené joined 4D Program team in November, 2016. As a Product Owner, he is in charge of writing the user stories then translating it to functional specifications. His role is also to make sure that the feature implementation delivered is meeting the customer need.After obtaining a Bachelor degree in Computer Science at CNAM, Fabrice joined a small software publishing company as a Windev developer. Then he worked for different companies in industry and trade areas as a Windev and web developer as well as technical advisor on new features.

Better Error Handling and Type Inference for 4D Developers

When you’re coding in 4D or VS Code, clear and precise feedback from the editor makes all the difference. It helps you understand what’s happening in ...

Fabrice Mainguené

January 20, 2026 1 min read

Code editor Language vscode

4D NetKit: Secure OpenID Authentication with nonce attribute

When working with modern authentication flows, security is paramount. Developers often need to integrate authentication with trusted identity provider...

Fabrice Mainguené

October 21, 2025 1 min read

4D NetKit OAuth 2.0

Trim, Trim start, and Trim end in 4D

When working with user input, data cleaning, or text formatting, one of the most common tasks is removing unwanted whitespace. Whether it's a space ac...

Fabrice Mainguené

October 17, 2025 1 min read

Language

4D NetKit: Decoding, Generating, and Validating JWT

JSON Web Tokens (JWT) have become a key standard for secure authentication and information exchange between systems. With JWT, you can transmit data i...

Fabrice Mainguené

October 17, 2025 1 min read

4D NetKit

Convert Numbers with Ease: Enhanced String and Num Commands

When working with different numeric bases, such as binary or hexadecimal, converting between numbers and strings is a common task. With 4D 21, the Str...

Fabrice Mainguené

October 17, 2025 1 min read

conversion Language

4D AIKit: Structured Outputs

When using AI in your application, you often need outputs that your code can parse, not just free-form text. Whether you’re generating data for a user...

Fabrice Mainguené

October 16, 2025 1 min read

4D AIKit AI AI Tool Calling Artificial Intelligence OpenAI

Edit and Manage Component Code Directly in the host project from the 4D Explorer

In 4D 20 R9, we introduced the ability to edit and debug component methods and classes directly from a host project. Start with 4D 21, we’re now going...

Fabrice Mainguené

October 16, 2025 1 min read

Component

4D NetKit: Simplifying OAuth 2.0 Redirects after authentication

4D NetKit just made redirecting users after OAuth 2.0 authentication easier with 4D 21. The OAuth2Provider class in 4D NetKit now allows real URLs for...

Fabrice Mainguené

October 15, 2025 1 min read

4D NetKit OAuth 2.0

Semantic search: querying by vector similarity

With the growing importance of vector-based search in AI applications such as semantic search, recommendation engines, and natural language processing...

Fabrice Mainguené

October 15, 2025 1 min read

AI Vector Search Vectors

Take Control of Standard 4D Components

As a 4D developer, you often want full control over what gets included in your projects. Starting with 4D 21, you can now decide which components prov...

Fabrice Mainguené

October 14, 2025 1 min read

Component Manager

Fabrice Mainguené

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