One Foundation. Every Service. Absolute Control.
A high-performance Rust backend framework designed to turn enterprise architecture, distributed services, and complex business systems into one coherent engineering experience.
Stop rebuilding the plumbing. Start building what matters.
Powerful foundations. Independent services. No wasted complexity.
Enterprise backends need far more than endpoints: identity, authorization, tenant isolation, reliable transactions, resilient communication, and trustworthy audit trails.
API brings these concerns together through one opinionated backend foundation, built on reusable Rust capabilities. Every service stays focused on its own domain, while common policies and infrastructure follow a consistent contract.
The ambition: make hard backend engineering repeatable without making it rigid.
The latest release — checksummed, attested, one command per platform.
api-hello is the hello service; it answers GET / and GET /health.
Linux and macOS:
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/comstrx/apix/releases/latest/download/api-hello-installer.sh | shWindows (PowerShell):
& ([scriptblock]::Create((irm https://github.com/comstrx/apix/releases/latest/download/api-hello-installer.ps1)))From source:
git clone https://github.com/comstrx/apix.git
cd apix
cargo run --release -p helloEvery asset carries a .sha256 sidecar and build provenance: gh attestation verify <asset> --owner comstrx.
A continuously evolving foundation for demanding backend systems.
Gateway & Routing · Identity & Sessions · Authorization & Tenancy · Typed APIs & Validation · Databases & Transactions · Caching & Rate Limiting · Events, Queues & Outbox · Realtime & Streaming · Idempotency & Resilience · Auditing & Observability
Designed to support commerce, payments, logistics, geospatial workflows, notifications, and other complex domains without baking their business rules into the framework.
One vocabulary. Every service. Endless possibilities.
A unified backbone. Clear boundaries. Independent domains.
Clients · Applications · Integrations
│
Gateway & API Contracts
│
Independent Domain Services
│
Reusable Backend Foundations
│
Unified Rust Engine
│
Data · Cache · Messaging
Single Responsibility · Service-Owned Data · Unidirectional Dependencies · Explicit Contracts · Provider Independence
Shared mechanisms belong in the foundation; reusable service policies belong in the framework; business rules and persistence belong to their owning domains.
Services communicate through defined APIs and events, never hidden imports or shared ownership of each other's data.
No circular dependencies. No duplicated foundations. No distributed monolith.
Thin services. Deep foundations. Serious engineering.
The framework unifies errors, contracts, lifecycle behavior, configuration boundaries, and cross-cutting policies without turning services into tightly coupled modules.
Each domain controls its own state and invariants. Local transactions establish the source of truth; idempotency, outbox patterns, explicit workflows, and recovery mechanisms make distributed operations dependable.
Abstractions must remove real repetition. Providers remain replaceable. Shared capabilities evolve from concrete needs—not speculative wrappers.
One owner per responsibility. One source per capability. Zero architectural guesswork.
Move more requests. Waste fewer resources. Measure everything.
Async I/O · Connection Pooling · Backpressure · Bounded Concurrency · Efficient Serialization · Batching · Cache Discipline · Allocation-Aware Paths · Low-Overhead Observability
Optimization follows realistic workloads, not artificial headline numbers. Throughput, P95/P99 latency, CPU, memory, contention, and database pressure are measured together.
The goal is maximum practical efficiency with correctness, stability, and predictable behavior under load.
Fast by architecture. Faster by evidence.
Trust is earned at every boundary—not inherited from the gateway.
Memory-safe foundations, tenant isolation, least-privilege access, resource-level authorization, strict input validation, protected secrets, and tamper-aware auditing guide the design.
Sensitive operations require explicit identities, secure transport, replay protection, controlled failure behavior, and verifiable data integrity. A service must never trust a caller merely because it is internal.
Security belongs in the contracts, data boundaries, and execution paths—not in optional middleware added later.
Fail closed. Isolate by default. Never compromise integrity.
Build with discipline. Verify with evidence. Evolve with confidence.
Service boundaries are backed by focused tests, contract verification, concurrency checks, dependency audits, and realistic benchmarks. Each change should strengthen a real capability while preserving the reusable core.
cargo clippy --workspace --all-targets --all-features --locked -- -D warnings
cargo test --workspace --all-features --lockedEngineering excellence isn't a milestone. It's the standard.
Copyright © 2026 Abdulrahman Yasser (comstrx).
Licensed under the Apache License 2.0.