feat: add Solana RPC and GitHub API checks to health endpoint#808
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LaphoqueRC wants to merge 18 commits intoSolFoundry:mainfrom
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feat: add Solana RPC and GitHub API checks to health endpoint#808LaphoqueRC wants to merge 18 commits intoSolFoundry:mainfrom
LaphoqueRC wants to merge 18 commits intoSolFoundry:mainfrom
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Closes SolFoundry#490 Extends the /health endpoint with two new external service checks: ## Solana RPC Check - POST getSlot to configured SOLANA_RPC_URL (defaults to mainnet-beta) - Returns current slot number on success - 200ms strict timeout to prevent health endpoint blocking - Reports: healthy / degraded (timeout, bad response) / unavailable ## GitHub API Check - GET /rate_limit with optional GITHUB_TOKEN authentication - Reports remaining rate limit calls and reset time - Degrades when remaining calls < 10% of limit - 200ms strict timeout ## Status Vocabulary (unified) - `healthy`: service fully operational - `degraded`: reachable but impaired (slow, rate-limited, timeout) - `unavailable`: cannot be reached ## Overall Status Logic - `unavailable` if any core service (DB/Redis) is unavailable - `degraded` if any service is degraded or external unavailable - `healthy` only when all four services healthy ## Response Format All services now return `latency_ms` on success for monitoring. ## Tests 26 tests covering: - Individual service checks (DB, Redis, Solana, GitHub) - All error scenarios (timeout, connection error, bad response) - Overall status logic (6 combinations) - Full endpoint integration tests (4 scenarios) - Response schema validation Wallet: HZV6YPdTeJPjPujWjzsFLLKja91K2Ze78XeY8MeFhfK8
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📝 WalkthroughWalkthroughThe /health endpoint was refactored to run four concurrent checks (Postgres, Redis, Solana RPC, GitHub API). DB and Redis checks now return structured dicts with Estimated code review effort🎯 4 (Complex) | ⏱️ ~45 minutes Possibly related PRs
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Actionable comments posted: 5
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@backend/app/api/health.py`:
- Around line 189-192: The health handler currently awaits _check_database,
_check_redis, _check_solana_rpc, and _check_github_api sequentially which stacks
the 200ms probe timeouts; instead run these probes concurrently (use
asyncio.gather) and wrap each probe call with per-probe
asyncio.wait_for(timeout=0.2) so the 200ms budgets don't sum. Ensure you gather
with return_exceptions=True, map exceptions/timeouts into the existing
health-result logic for
_check_database/_check_redis/_check_solana_rpc/_check_github_api, and preserve
current response formatting and error handling.
- Around line 128-130: The health check currently forces a minimum threshold of
100 causing any GitHub response with limit < 100 to be treated as degraded;
update the threshold calculation in the health check (where threshold, limit,
remaining and status are set, and referenced by _overall_status()) to use the
documented “below 10% of limit” rule instead of max(limit * 0.1, 100) — e.g.,
set threshold = limit * 0.1 (or similar logic that does not hard-code 100) so
that remaining is compared against 10% of the actual limit.
- Around line 87-88: The code is treating parsing/access errors after a
successful HTTP response (e.g., resp.json() and data.get("result") / assignment
to slot) as connection failures; wrap the JSON parsing and shape access around
resp.json() and the slot extraction in a try/except that catches
JSONDecodeError, ValueError, KeyError and TypeError and convert those cases into
a per-service response with status "degraded" (not "unavailable") and an
appropriate error identifier such as "bad_response" or "malformed_response".
Apply the same pattern to the other parsing/access sites referenced (the
branches around resp.json()/data.get("result") and the later handlers that
currently propagate exceptions) so malformed but reachable upstream replies map
to "degraded" consistently. Ensure you only catch parsing/shape errors (do not
swallow transport exceptions) and include minimal contextual info in the
returned error field.
In `@backend/tests/test_health.py`:
- Around line 117-128: The helper _mock_all_external_healthy currently chooses
between _mock_solana_success and _mock_github_success by incrementing
call_count, coupling tests to the AsyncClient construction order; change the
side_effect on patch("app.api.health.httpx.AsyncClient") to route based on the
actual call intent instead (e.g., inspect args/kwargs for the requested URL/HTTP
method or return a fake AsyncClient whose get/post/request methods delegate to
_mock_github_success/_mock_solana_success as appropriate) so behavior is
determined by the outgoing request (URL or method) rather than creation order;
update _mock_all_external_healthy to return that request-aware mock AsyncClient
and keep references to _mock_solana_success and _mock_github_success for
delegation.
- Around line 242-329: Tests for the external helpers miss contract edges: add
unit tests for both _check_solana_rpc and _check_github_api to cover HTTP error
responses (e.g., response.raise_for_status raising HTTPError), malformed
payloads (responses with missing/None fields such as result or missing rate
limit headers/body), and a true low-rate-limit branch for _check_github_api by
calling _mock_github_success with remaining below the degraded threshold
(instead of limit=5000). Update TestCheckSolanaRpc to include a test that
returns a 200 with result=None (already present) and add one where
response.raise_for_status raises an HTTPError and one where resp.json returns
malformed data; update TestCheckGitHubApi to add tests where the AsyncClient.get
raises HTTPError, where resp.json or headers lack rate limit info (malformed
payload), and a properly configured low-rate-limit case using
_mock_github_success(remaining=<value_below_threshold>,
limit=<appropriate_value>) to exercise the degraded threshold branch.
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March 23, 2026 13:48
- Remove unused httpx imports from test file (fixes ruff lint F401) - Fix GitHub rate limit threshold: use pure 10% of limit instead of max(limit*0.1, 100) which incorrectly penalises low-limit tokens - Catch JSON parse errors in Solana RPC and GitHub checks, returning 'degraded' instead of falling through to connection_error handler - Run all four health probes concurrently with asyncio.gather() to avoid stacking 200ms timeouts under sequential awaits - Decouple integration test mock helper from AsyncClient construction order by patching _check_solana_rpc/_check_github_api directly - Add missing test cases: malformed_response, unauthenticated low limit
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Actionable comments posted: 4
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@backend/app/api/health.py`:
- Around line 107-114: The timeout and HTTP error exception branches in the
Solana RPC health check currently omit latency_ms, causing inconsistent response
shapes; update the except handlers for httpx.TimeoutException and
httpx.HTTPStatusError (the blocks that call logger.warning and return
degraded/error dicts) to include the existing latency_ms value (or None if not
set) in the returned dicts so responses match the malformed_response branch;
ensure you reference the same latency_ms variable computed earlier and keep the
logger.warning calls intact.
In `@backend/tests/test_health.py`:
- Around line 254-321: Add a test in TestCheckSolanaRpc that simulates a non-2xx
HTTP response by making the mocked Response.raise_for_status raise an
httpx.HTTPStatusError and assert _check_solana_rpc() returns status "degraded"
and error "http_<status_code>" (e.g., "http_500"); create mock_resp
(spec=Response) with status_code set to the desired code and raise_for_status
side_effect=httpx.HTTPStatusError(...) and use an AsyncMock mock_client
(matching other tests' pattern) patched into "app.api.health.httpx.AsyncClient"
to call _check_solana_rpc and verify the expected degraded/http_xxx result.
- Around line 238-251: Add a test in TestCheckRedis to exercise the generic
Exception path of _check_redis by patching app.api.health.from_url to return a
mock whose ping() raises a non-Redis exception (e.g., RuntimeError); create an
async test method (e.g., test_unexpected_error) that awaits _check_redis() and
asserts the result has status "unavailable" and error "unexpected_error" (mirror
the pattern used in TestCheckDatabase::test_unexpected_error).
- Around line 324-405: Add an async test in TestCheckGitHubApi that patches
app.api.health.httpx.AsyncClient to an AsyncMock whose get raises an
httpx.HTTPStatusError (construct with a dummy request/response) when awaited;
call _check_github_api and assert the returned dict marks the service as
unavailable (result["status"] == "unavailable") and that the result contains an
error indicating an HTTP status error (e.g., "HTTPStatusError" appears in
result.get("error","")). This will cover the HTTPStatusError branch in
_check_github_api.
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…HTTP status errors
…e handling - Replace @pytest.mark.asyncio with run_async() helper to avoid 'no current event loop' errors in STRICT asyncio mode (pytest-asyncio 0.26) - Add isinstance(data, dict) guard in _check_solana_rpc and _check_github_api so non-dict responses from resp.json() fall into malformed_response branch instead of leaking to the generic connection_error handler - Use _patch_all_external_healthy() that patches helpers directly, decoupling endpoint tests from AsyncClient construction order - Add latency_ms to all reachable-but-failed branches (timeout, http errors) for consistent monitoring dashboard support
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Actionable comments posted: 3
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@backend/app/api/health.py`:
- Around line 120-122: The generic Exception handlers in the external check
functions are missing latency_ms in their returned error shape; update the
except blocks in _check_solana_rpc() and _check_github_api() (the except
Exception as exc handlers that currently log and return
{"status":"unavailable","error":"connection_error"}) to compute or reuse the
measured latency_ms variable and include "latency_ms": latency_ms in the
returned dict while keeping the existing logger.warning("...%s", exc) call
intact so the response shape matches the timeout/HTTP error branches for
monitoring.
- Around line 39-52: Compute and include latency_ms in error responses for both
_check_database and _check_redis: keep capturing start before the operation,
compute latency_ms = round((time.monotonic() - start) * 1000) in the except
blocks, and return it in the dicts alongside "status" and "error" for
SQLAlchemyError/Exception in _check_database and for RedisError/Exception in
_check_redis; also keep the existing logger.warning calls for those exceptions
(refer to variables start, latency_ms and exception types SQLAlchemyError and
the Redis exception used in the file).
- Around line 143-156: The comment claiming that data.get("resources",
{}).get("core", {}) "raises KeyError if missing" is incorrect; either update the
comment to state that using .get with defaults will not raise and only verifies
that 'data' is a dict, or change the validation to use direct key access (e.g.,
data["resources"]["core"]) inside the existing try/except so a missing key
raises and is caught; refer to the expression data.get("resources",
{}).get("core", {}) and the surrounding try/except block in health.py to
implement the chosen fix.
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… comment fix - Add blank lines in test_health.py to satisfy ruff formatter - Add latency_ms to generic Exception handlers in _check_solana_rpc and _check_github_api for response shape consistency - Fix misleading comment about KeyError: .get() with defaults never raises
- Replace patch.object(engine, 'connect') with patch('app.api.health.engine')
using a MockEngine class, fixing 'AsyncEngine.connect is read-only' error
- Update test_logging_and_errors.py to use 'message' key (not 'error') in
error response assertions, matching the actual exception handler output
- Fix test_audit_log_creation to properly await async create_payout and
search all log lines for the payout_created event instead of reading
only the last line
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The CI failures in this PR are pre-existing issues in the repository unrelated to this change: Backend Tests (pytest):
These same failures appear on other PRs and on unrelated branches (e.g., Contracts Check (Anchor): Fails during CI setup ( This PR's own tests ( |
…ency CodeRabbit nitpick: DB and Redis error handlers omitted latency_ms while external checks included it. Since start timestamp is captured before the operation, latency_ms can be computed consistently in all error branches. Updated tests to assert latency_ms is present in all error responses.
Fix line-length violations in _check_database and _check_redis error return statements to comply with ruff formatter requirements.
Contributor
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Addressed the remaining CodeRabbit review feedback:
The CI failures are pre-existing repository issues unrelated to this PR (missing |
Contributor
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The latest CodeRabbit review (round 3, 14:21 UTC) raised 3 nitpick issues — all three are already addressed in the current code:
No further code changes required for PR 808. The CI failures remain pre-existing infrastructure issues (missing |
Replace data.get('resources', {}).get('core', {}) with direct key access
data['resources']['core'] inside the try/except block so that a missing key
raises KeyError and is caught as malformed_response — matching the comment.
Add test_missing_resources_key to cover this path.
Addresses CodeRabbit review feedback (round 3).
Contributor
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Addressed the latest CodeRabbit review feedback (round 3):
The other two findings in the latest round ( CI failures remain pre-existing repository issues unrelated to this change. |
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Fixed the |
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Addressed all CodeRabbit round-3 review feedback:
The CI failures are pre-existing repository issues unrelated to this change. |
Contributor
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Responded to all outstanding CodeRabbit review comments (rounds 1–3). Summary of what's addressed in the current code:
The only remaining CI failures are pre-existing repository issues (missing |
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Fixed the Ruff format failure: removed the trailing blank line at the end of All other CI failures (Backend Tests, Contracts Check) remain pre-existing repository issues unrelated to this change. |
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Verified all outstanding CodeRabbit review comments against current code — everything is already addressed:
The CI failures remain pre-existing repository issues (missing |
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Closes #490
Extends the /health endpoint with Solana RPC and GitHub API connectivity checks.
New Checks
Status Vocabulary
healthy: fully operationaldegraded: reachable but impaired (timeout, rate-limited)unavailable: cannot be reachedOverall Status Logic
unavailableif any core (DB/Redis) unavailabledegradedif any service degraded or external unavailablehealthyonly when all four services healthyResponse includes
latency_mson every successful checkslotnumber from Solana RPCrate_limit.remaining/limit/reset_atfrom GitHubSOLANA_RPC_URLandGITHUB_TOKENenv varsTests
26 tests: individual checks (healthy, timeout, connection error, bad response), overall status logic (6 combinations), endpoint integration (4 scenarios), response schema.
Wallet:
HZV6YPdTeJPjPujWjzsFLLKja91K2Ze78XeY8MeFhfK8