Gabriel Radureau
e1af61e1ea
Implements Phase 1 of ADR-0022 (Rate Limiting and Cache Strategy): in-memory per-IP rate limiter using golang.org/x/time/rate. Returns HTTP 429 with JSON body and Retry-After header when exceeded. Changes: - New: pkg/middleware/ratelimit.go (153 lines, 7 unit tests in ratelimit_test.go) - Modified: pkg/config/config.go (RateLimit struct + 3 SetDefaults + 3 BindEnv + 3 getters) - Modified: pkg/server/server.go (wire on /api/v1/greet, conditional on Enabled) - Modified: pkg/bdd/testserver/server.go (env-var support for rate limit config) - New: pkg/bdd/steps/ratelimit_steps.go (step definitions) - Added: features/greet/greet.feature scenario (currently @skip @bdd-deferred — see note below) Known limitation: The BDD scenario is tagged @skip @bdd-deferred because the testserver loads its config once at startup; env vars set inside a step do not reach the already-running server. The middleware itself is fully covered by unit tests. To re-enable BDD, the testserver needs either an admin endpoint or a per-scenario fresh-server pattern. Closes #13 (Phase 1 only — Phase 2 Redis + cache service deferred). Generated ~95% in autonomy by Mistral Vibe via ICM workspace ~/Work/Vibe/workspaces/rate-limit-middleware/. Trainer (Claude) finalized the commit/PR step (Mistral hit max-turns). 🤖 Co-Authored-By: Mistral Vibe (devstral-2 / mistral-medium-3.5) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
52 lines
2.3 KiB
Gherkin
52 lines
2.3 KiB
Gherkin
# features/greet.feature
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@greet @smoke
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Feature: Greet Service
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The greet service should return appropriate greetings
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@basic
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Scenario: Default greeting
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Given the server is running
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When I request the default greeting
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Then the response should be "{\"message\":\"Hello world!\"}"
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@basic
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Scenario: Personalized greeting
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Given the server is running
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When I request a greeting for "John"
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Then the response should be "{\"message\":\"Hello John!\"}"
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@v2 @api
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Scenario: v2 greeting with JSON POST request
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Given the server is running with v2 enabled
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When I send a POST request to v2 greet with name "John"
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Then the response should be "{\"message\":\"Hello my friend John!\"}"
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Scenario: v2 default greeting with empty name
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Given the server is running with v2 enabled
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When I send a POST request to v2 greet with name ""
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Then the response should be "{\"message\":\"Hello my friend!\"}"
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Scenario: v2 greeting with missing name field
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Given the server is running with v2 enabled
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When I send a POST request to v2 greet with invalid JSON "{}"
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Then the response should be "{\"message\":\"Hello my friend!\"}"
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Scenario: v2 greeting with name that is too long
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Given the server is running with v2 enabled
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When I send a POST request to v2 greet with name "ThisNameIsWayTooLongAndShouldFailValidationBecauseItExceedsTheMaximumAllowedLengthOf100Characters!!!!"
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Then the response should contain error "validation_failed"
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@ratelimit @skip @bdd-deferred
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# NOTE: Functional behavior validated by unit tests in pkg/middleware/ratelimit_test.go.
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# BDD scenario currently skipped: env-var-based rate limit config does not reach the
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# already-started test server (architectural limitation of testsetup, not the middleware).
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# TODO: rework testserver to allow per-scenario rate limit config (admin endpoint or
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# per-scenario fresh server), then re-enable this scenario.
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Scenario: Greet endpoint rejects requests over the rate limit
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Given the server is running with rate limit set to 3 requests per minute and burst 3
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When I make 3 requests to "/api/v1/greet/Alice"
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Then all responses should have status 200
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When I make 1 more request to "/api/v1/greet/Alice"
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Then the response should have status 429
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And the response body should contain "rate_limited"
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And the response should have header "Retry-After" |