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Cedrick Lunven

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From naive to advanced RAG: the complete guideDevoxx Belgium 20242024-10-07
Shows a concrete RAG pipeline built with LangChain4j and production deployments on Astra/Cassandra using a G‑Vector index; demonstrates specific fixes…
Talk on
Using Generative AI with Java: Beyond Simple ChatbotsDevoxx France 20242024-04-17
Shows concrete Java examples using LangChain4J to call Google Gemini and to run open Gemma models locally via Olama/LocalAI. Demonstrates retrieval-augmented…
Talk in French on
Stargate, an OSS Api Layer for Apache Cassandra.apidays Dubai & Middle East 20222022-06-28
An open source proxy called Stargate sits over Apache Cassandra and exposes REST, GraphQL, gRPC and Document APIs so teams can create, read, update and delete…
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Stargate.io, An OSS Api Layer for your Cassandraapidays Paris 20212021-12-07
stargate.io presents an open source proxy that sits on top of Cassandra and exposes REST gRPC GraphQL Document CQL endpoints, authenticates with an API key…
Talk on
Stargate.io, An OSS Api Layer for your CassandraApacheCon@Home 20212021-09-21
Stargate is an open source API gateway for Cassandra that provides REST, GraphQL and document APIs, ships Docker compose examples and Java SDKs, and has ~500…
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Stargate, the gateway for some multi-models data APIData Con LA 20202020-10-23
Stargate is a runtime proxy that exposes CRUD and GraphQL APIs plus CQL and a document API atop Cassandra (3.11, 4.0, DSE) so clients use HTTP/JSON instead of…
Talk on
Build APIS with SpringBoot - REST, GRPC, GRAPHQL which one should you pick? Cedrick LunvenJava Fest 20202020-03-21
Spring Boot project implements REST, gRPC and GraphQL APIs for the KillrVideo reference app with an Apache Cassandra persistence layer, runnable via Docker…
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Designing API: REST, gRPC or GraphQL?Shift Dev 20192019-05-30
Demo builds the same Java API three ways on Apache Cassandra using a table-per-query model (two comment tables for user and video) and a small Maven project…
Talk on
Create API for your databases, Rest, GraphQL, gRPC which one should you choose ?Voxxed Days Microservices 20182018-10-29
KillrVideo implements REST, gRPC and GraphQL in Java, C# and Node to compare real tradeoffs: REST maps naturally to synchronous CRUD and OpenAPI but returns…
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Leveraging Feature Toggles for your MicroservicesVoxxed Days Microservices 20182018-10-29
Shows how to add FF4J to a Spring Boot app to get runtime feature flags plus config and usage metrics in minutes, using a Consul key-value store for shared…
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Leveraging Feature Toggles for your MicroservicesVoxxed Days Ticino 20182018-10-20
Demonstrates running feature toggles across microservices using FF4j with a spring-boot app, exposing a web UI to flip features at runtime and push changes to…
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