Product Decisions This Supports
- API architecture choice: Choosing between REST, GraphQL, and JSON-RPC for a service surface. JSON-RPC (and by extension this package) is the right call when the product is better modeled as a set of discrete, well-named operations (e.g., "run calculation," "submit job," "fetch report status") rather than resource-oriented CRUD — common in internal tools, data-processing backends, and integration/B2B surfaces.
- Build-vs-buy for protocol plumbing: The JSON-RPC 2.0 spec is small but deceptively fiddly (batched requests, notifications vs. calls,
id echoing, standardized error codes, parse/validation error differentiation). This package is a "buy" (well, adopt — BSD-3-Clause) that lets the team skip re-implementing spec edge cases.
- Standardizing internal service-to-service calls: If the product has a PHP backend calling other internal PHP services, adopting a single RPC envelope (JSON-RPC) makes tracing, error handling, and client-generation consistent across teams.
- Supporting partner/customer integrations: A spec-compliant JSON-RPC endpoint is a well-understood contract for external integrators, reducing bespoke documentation and support burden.
- Roadmap de-risking: Because the library is small, BSD-licensed, and single-purpose, adopting it is a low-lock-in decision — it can be replaced by a hand-rolled dispatcher later without a migration project, which keeps it off the critical path in roadmap planning.
- Not a fit for public, high-traffic, consumer-facing API strategy — that usually wants REST or GraphQL for caching, tooling, and developer familiarity. This is an internal/integration-tier decision.
When to Consider This Package
Consider it when all or most of the following hold:
- The backend is already PHP, and especially if it is already on Laminas/Zend Framework (or Mezzio) — the package slots into existing MVC/PSR-7 plumbing with minimal glue.
- The API surface is genuinely procedure-oriented (commands, computations, job submission, remote method invocation) rather than resource-oriented.
- You need spec-compliant JSON-RPC 2.0 — batched requests, notifications, standardized error codes — and don't want to hand-roll that logic.
- The consumers are internal services or technical integrators, not public web/mobile clients where REST/GraphQL tooling and caching matter.
- You value predictable licensing (BSD-3-Clause) and a stable, conservatively-maintained codebase over community momentum.
- Your team can tolerate low community activity — few GitHub stars, limited Stack Overflow coverage — and is comfortable reading library source when documentation is thin.
Look elsewhere when:
- Ecosystem momentum matters. 15 stars is a signal: few blog posts, few answered questions, and a small pool of engineers who've debugged it in production. If your team needs a large support network, prefer a mainstream REST framework or a hand-rolled JSON-RPC endpoint.
- You are not on Laminas. Adopting the package pulls in Laminas conventions and dependencies; on Symfony/Laravel you will spend more time integrating than writing the ~200–400 lines of JSON-RPC dispatch yourself.
- Public API or browser-facing surface. REST or GraphQL will serve caching, HTTP semantics, and client tooling better.
- Throughput-critical paths. The package is an implementation, not a performance-tuned gateway; benchmark before committing to high-QPS use.
- You need active feature development. Release cadence and community size suggest maintenance-mode stability rather than rapid evolution — fine for a stable protocol, risky if you need vendor engagement.
How to Pitch It (Stakeholders)
For executives (one paragraph): We can expose our backend capabilities through a standards-based JSON-RPC interface using a small, BSD-licensed PHP library already aligned with the Laminas ecosystem. This is a low-cost, low-lock-in decision: it replaces bespoke protocol code with a spec-compliant implementation, reduces integration friction for internal teams and technical partners, and does not commit us to a proprietary vendor or a heavy framework migration. The primary trade-off is community size — this is a niche, conservatively-maintained package — so we should treat it as infrastructure to be owned internally, not as a widely-supported product dependency.
For engineering leadership: The package gives us JSON-RPC 2.0 dispatch, batching, notifications, and standardized error handling out of the box, fitting cleanly into PSR-7/Laminas request lifecycles. It is a "thin buy": small surface area, permissive license, easy to replace with an in-house dispatcher if needed. Recommended guardrails before adoption: (1) confirm we are comfortable owning integration and upgrades, (2) benchmark for our target QPS, (3) wrap it behind our own service interface so a future swap is a one-file change, and (4) treat "not for public/browser-facing APIs" as an explicit scope boundary — those remain REST or GraphQL.