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Vendor azaharizaman
Package nexus-idempotency
Short Description Domain-level idempotency: command deduplication and replay-safe results (Layer 1).
License MIT

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Informations about the package nexus-idempotency

Nexus\Idempotency

Overview

Nexus\Idempotency is a Layer 1 package for command-level idempotency: deduplicate mutating operations using a tenant-scoped composite key (tenantId, operationRef, clientKey) plus a request fingerprint, and replay a stored opaque result for safe retries.

It does not implement HTTP, databases, outbox, event streams, or audit trails—see REQUIREMENTS.md for boundaries.

Architecture

Layer 1: pure PHP 8.3+, framework-agnostic
Explicit lifecycle: begin() → domain work → complete() or fail()
Persistence via IdempotencyStoreInterface (composite of IdempotencyQueryInterface + IdempotencyPersistInterface; e.g. InMemoryIdempotencyStore for tests — uses JSON-encoded tuple keys json_encode([tenantId, operationRef, clientKey]) so segments cannot collide across delimiter characters)
Time via IdempotencyClockInterface (SystemClock returns UTC DateTimeImmutable, or test doubles)

Key interfaces

Nexus\Idempotency\Contracts\IdempotencyServiceInterface
Nexus\Idempotency\Contracts\IdempotencyStoreInterface (extends query + persist ports)
Nexus\Idempotency\Contracts\IdempotencyClockInterface

Installation

From monorepo root:

Usage (conceptual)

complete() / fail() require the AttemptToken from the FirstExecution record for that attempt so completions cannot attach to a superseded reservation after TTL expiry/replace.

License

MIT

All versions of nexus-idempotency with dependencies

PHP Build Version

Package Version

Version v0.1.0-alpha1 Release 05. May 2026
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Requires php Version ^8.3

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