Lets a clustered burst of mint calls (typical interop test scenario,
also any moq-auth deployment with stricter rate limits) outlast the
60 s rate-limit window instead of cascading into a hard failure.
- Retry up to 7 times on HTTP 429. Worst-case total wait at 1 s
initial + 16 s cap is 1+2+4+8+16+16+16 = 63 s — just past the
reference moq-auth 60 s/IP window.
- Respect the `Retry-After` header (delta-seconds OR HTTP-date)
when present; fall back to capped exponential backoff otherwise.
- Re-sign the NIP-98 auth event on every attempt. The reference
validator accepts a 60 s validity window; without re-signing,
any retry that waits past that window fails 401 "Event too old".
- Suspending `delay` so coroutine cancellation tears the loop down
cleanly.
`./gradlew :nestsClient:jvmTest -DnestsInterop=true -DnestsInteropExternal=true`
now goes green in a single invocation: 157 tests across 33 classes,
0 failures. Previously the same command cascaded 11 failures once
the moq-auth 20/min/IP bucket filled.
Unit tests: 7 new cases covering Retry-After parsing (seconds,
HTTP-date, garbage, missing), exponential cap, the 429-then-200
retry loop, max-retries exhaustion, and that non-429 4xx is NOT
retried. Backed by a tiny ServerSocket-based HTTP fake so no new
test deps.
Claude
cee9d8a430