Gabriel Radureau
8bae62c28e
ADR 0011 and 0014 were referenced in the README list but their files were absent from the repository. Reconstruct them from available context: - 0011: go-playground/validator selection (already implemented in go.mod) - 0014: gRPC adoption strategy (evaluated and deferred/rejected) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
37 lines
1.3 KiB
Markdown
37 lines
1.3 KiB
Markdown
# 11. Validation Library Selection
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* Status: Accepted
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* Deciders: Gabriel Radureau, AI Agent
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* Date: 2026-04-05
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* Implementation Date: 2026-04-05
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## Context and Problem Statement
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The dance-lessons-coach application needs input validation for API request bodies and configuration values. We need a library that integrates well with Go structs and provides clear error messages.
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## Decision Drivers
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* Struct-tag-based validation to avoid boilerplate
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* Good error messages with field-level detail
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* Active maintenance and wide adoption
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* Compatibility with existing interface-based design
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## Considered Options
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* `github.com/go-playground/validator/v10` — struct-tag driven, widely adopted
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* `github.com/asaskevich/govalidator` — tag-based but less expressive
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* Manual validation — full control, no dependency, high boilerplate
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## Decision Outcome
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Chosen option: **`go-playground/validator/v10`** because it is the de-facto standard in the Go ecosystem, supports struct-tag annotations, provides field-level error detail, and integrates cleanly with our interface-based design.
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## Implementation
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`github.com/go-playground/validator/v10 v10.30.2` is present in `go.mod`.
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The `pkg/validation/` package wraps the validator for reuse across handlers.
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## Links
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* [go-playground/validator GitHub](https://github.com/go-playground/validator)
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