51eshare's Tech Blog
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Constructing a Scala Security Layer for Enforcing Solr Document-Level Access Control Constructing a Scala Security Layer for Enforcing Solr Document-Level Access Control
A security audit on our multi-tenant platform uncovered a critical flaw. Our Scala backend was forwarding search request
2023-10-27 Backend Development
Solr Security Scala Multi-tenancy Authorization
Constructing a Minimalist, Secure SNS Event Processor with Zig, Docker, and OIDC JWT Validation Constructing a Minimalist, Secure SNS Event Processor with Zig, Docker, and OIDC JWT Validation
The operational cost of our event-processing infrastructure was becoming a line item worthy of discussion. We were runni
2023-10-27 Backend Development
RESTful API AWS SNS Docker Zig OpenID Connect (OIDC)
Orchestrating Federated Authentication Across Actix-web and Ktor for a Pinia-Powered Micro-frontend Architecture Orchestrating Federated Authentication Across Actix-web and Ktor for a Pinia-Powered Micro-frontend Architecture
The mandate was clear: decompose a monolithic front-end into micro-frontends to accelerate independent team delivery. Th
2023-10-27 Backend Development
Authentication Micro-frontends Actix-web Rust Pinia Kotlin Ktor
Implementing a Rust-Based Sidecar with Axum and LevelDB to Accelerate a Legacy Flask ORM Layer Implementing a Rust-Based Sidecar with Axum and LevelDB to Accelerate a Legacy Flask ORM Layer
The latency graph for our primary Flask monolith was starting to look like a seismograph during an earthquake. Specifica
2023-10-27 Backend Development
Flask Microservices LevelDB Python Rust Tonic Axum ORM
Implementing a Go-Based RAG Pipeline with a SciPy Reranking Service and OpenSearch Vector Search Implementing a Go-Based RAG Pipeline with a SciPy Reranking Service and OpenSearch Vector Search
The standard k-Nearest Neighbor (k-NN) search against a vector database provides a powerful baseline for retrieval-augme
2023-10-27 Backend Development
Microservices SciPy gRPC Go Zustand OpenSearch RAG
Building a Real-Time Vector Similarity Monitoring Frontend with Milvus and Server-Sent Events Building a Real-Time Vector Similarity Monitoring Frontend with Milvus and Server-Sent Events
Our log aggregation platform was generating thousands of alerts, but the signal-to-noise ratio was abysmal. A flurry of
2023-10-27 Backend Development
Server-Sent Events (SSE) Babel Milvus Ant Design Grafana
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