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httpclient/.gitea/pull_request_template.md
Rene Nochebuena caa397591e feat(httpclient): initial implementation — HTTP client with retry and circuit breaker (v1.0.0)
Introduces code.nochebuena.dev/einherjar/httpclient — the outbound HTTP client
starter for the Einherjar framework. Absorbs the httpclient package from micro-lib,
replacing fmt.Errorf wrapping with core/xerrors and adding generic JSON helpers.

Interfaces:
- Provider — Do(req *http.Request) (*http.Response, error)

Implementation:
- New(logger, cfg) Provider — configures net.Dialer + retry + circuit breaker
- NewWithDefaults(logger) Provider — convenience constructor with default config
- Retry: avast/retry-go; configurable MaxRetries and RetryDelay; retries on
  network errors and 5xx responses; logs each retry attempt at Warn level
- Circuit breaker: sony/gobreaker; opens after CBThreshold consecutive failures
  within CBTimeout window; returns ErrUnavailable when open
- DoJSON[T](ctx, client, req) (*T, error) — executes request, decodes JSON body
- DoJSONRequest[Req, Resp](ctx, client, method, rawURL, body) (*Resp, error) —
  marshals body, builds request, executes, decodes response
- MapStatusToError(code, msg) error — maps HTTP status codes to xerrors values

Config (EINHERJAR_HTTP_* env vars):
  Name(http), Timeout(30s), DialTimeout(5s),
  MaxRetries(3), RetryDelay(1s), CBThreshold(10), CBTimeout(1m)

- identifiable.go: package-level Module variable (observability.Identifiable) for version
  identification — httpclient is a stateless provider; not registered with the launcher
2026-05-29 16:06:47 +00:00

2.3 KiB

Summary


Type of change

  • Bug fix — non-breaking change that resolves an issue
  • New feature — non-breaking addition of functionality
  • Breaking change — alters existing behavior or public API
  • Documentation update
  • Refactor — no functional change, no new API surface
  • Test improvement

Description


Testing

  • I added or updated tests that cover my changes
  • All tests pass locally — go test ./...
  • No formatting issues — gofmt -l . produces no output
  • No vet warnings — go vet ./... is clean

Checklist

  • At most one exported type per non-test .go file (CT-6)
  • No new external dependencies added without prior discussion in an issue
  • Public API changes are reflected in CHANGELOG.md
  • Breaking changes include a migration note in the PR description above

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