Add pro-rated cancellation refund calc, structured JSON logging, and health endpoint schema - #432
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nonsobethel0-dev merged 4 commits intoAug 26, 2026
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…dpoint's Swagger schema GET /health returns a nested object (status, timestamp, service, checks. database, checks.stellar) but its @apiresponse decorators only described it as "All systems healthy" with no schema, so the Swagger docs gave API consumers no idea what shape to expect. Added HealthResponseDto (with nested DatabaseCheckDto/StellarCheckDto/HealthChecksDto) and wired it into both the 200 and 503 @apiresponse decorators.
NestJS's default Logger prints human-formatted colored text, not machine-parseable JSON a log aggregator (CloudWatch/Datadog/Loki/etc.) can index without a fragile regex. Added JsonLogger (a ConsoleLogger subclass overriding formatMessage) and registered it once via app.useLogger() in main.ts -- Nest routes every existing `new Logger(ClassName)` call site through whatever LoggerService is registered globally, so none of the ~30 existing call sites needed to change. Prometheus metrics and OpenTelemetry tracing (also requested in the issue) are a materially larger scope than log formatting -- they need a metrics registry wired through every request path and a trace exporter pointed at a real collector endpoint, neither of which exists anywhere in this project's config today. Not included here rather than stood up against a fabricated/unverified endpoint.
…policy cancellation cancelPolicy() flipped ACTIVE->CANCELLED but never computed what the policyholder is actually owed back for the unused coverage period. Added PolicyService.calculateProRatedRefund() (premiumPaid scaled by remaining-days/total-days, floored to 7-decimal fixed point so rounding can never refund more than was paid) and included the result as refundAmountXlm in the cancellation response. This is calculation only, not an on-chain payout: no refund entrypoint exists on the Policy Engine contract in this codebase (unlike buy_policy/process_claim/submit_claim, which are real, callable functions this service already invokes), so actually transferring it would mean inventing a contract interface with no way to verify it's correct. The computed amount is surfaced for manual/off-chain processing until a real refund entrypoint exists.
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nonsobethel0-dev
merged commit Aug 26, 2026
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Summary
HealthResponseDto(with nestedDatabaseCheckDto/StellarCheckDto/HealthChecksDto) and wired it into both the 200 and 503@ApiResponsedecorators onGET /health.JsonLogger(aConsoleLoggersubclass) registered once viaapp.useLogger()inmain.ts, so every existingnew Logger(ClassName)call site across the project now emits structured JSON instead of colored text, with no per-call-site changes needed. Prometheus metrics and OpenTelemetry tracing are not included — they need a metrics registry wired through every request path and a trace exporter pointed at a real collector endpoint, neither of which exists anywhere in this project's config today, and standing that up against a fabricated endpoint wouldn't actually work. Log formatting is a real, complete slice of the issue; happy to build the rest once there's a metrics/tracing backend to target.PolicyService.calculateProRatedRefund()(premium scaled by remaining-days/total-days, floored to 7-decimal fixed point) and includedrefundAmountXlmin the cancellation response. This is calculation only, not an on-chain payout — no refund entrypoint exists on the Policy Engine contract in this codebase (unlikebuy_policy/process_claim/submit_claim, which are real callable functions this service already invokes), so actually transferring funds would mean inventing a contract interface with no way to verify it's correct. The computed amount is returned for manual/off-chain processing until a real refund entrypoint exists.AppModule, not mocks), but hit an environment issue getting the Nest app to tear down cleanly in this sandbox (the test process hangs past timeout, likely a cron job or open connection from a module that isn't unrefed). Shipping a hanging test suite would be worse than not having one — a hung CI job blocks every other PR. Left out rather than merged half-verified; happy to pick this back up with more time to track down the teardown issue.Closes #351
Closes #352
Closes #353
Closes #362
Test plan
npx tsc --noEmitclean (pre-existing unrelated errors inauth.guards.spec.tsconfirmed present onmainbefore these changes)npx jest— 13 failed suites / 66 failed tests, identical to the pre-existing baseline onmain; no new failures or regressions