Architecture at a Glance
%%{init: {'theme': 'default', 'themeVariables': { 'background': '#ffffff', 'canvasBackground': '#ffffff', 'primaryColor': '#fff' }}}%%
flowchart TD
subgraph MobileApplication [Mobile App - Flutter]
flutterApp[Flutter / Riverpod / Freezed]
dioClient[Dio HTTP Client]
end
subgraph AuthSecurity [Identity & Auth]
authSystem[JWT / Google & Apple Sign-In]
end
subgraph BackendCore [Core API - FastAPI]
fastApi[FastAPI Service]
redisCache[(Redis Cache)]
end
subgraph EventPipeline [Asynchronous AI Orchestration]
kafkaBroker[Kafka Message Broker]
openAi[OpenAI API Engine]
end
subgraph DataLayer [Data Management]
pgBouncer[PgBouncer Pooling]
postgresDb[(PostgreSQL / Alembic)]
end
subgraph DevOps [Deployment]
infra[Docker & Codemagic CI/CD]
end
flutterApp --> dioClient
dioClient --> authSystem
authSystem --> fastApi
fastApi <--> redisCache
fastApi --> kafkaBroker
kafkaBroker --> openAi
openAi --> postgresDb
fastApi --> pgBouncer
pgBouncer --> postgresDb
infra -.-> flutterApp
infra -.-> fastApi
The Problem
Traditional language tools often feel clinical and static, failing to provide the interactive, personalized context necessary for true fluency.
The Solution
We engineered an event-driven mobile ecosystem that fuses real-time AI generation with a premium design system, delivering a seamless, "lifestyle" educational experience.
The Impact
By abstracting complex background processing into a fluid, tactile interface, Lexigram transforms technical mastery into an effortless, high-performance journey for thousands of global users.
