return 503 on unhealthy response

ethapi/api.go

@@ -176,12 +176,20 @@ func (s *PublicEthereumAPI) Health(blockTimeSecThreshold uint64, uptimeSecThresh
 	peerCount := s.b.PeerCount()
 	log.Debug("Health check", "peerCount", peerCount, "peerCountThreshold", peerCountThreshold, "uptime", uptime, "uptimeThreshold", uptimeThreshold, "progress", progress, "currentBlockTime", time.Since(progress.CurrentBlockTime.Time()), "blockTime", blockTime)
 
-	if uptime < uptimeThreshold || progress.CurrentBlock < progress.HighestBlock || peerCount < int(peerCountThreshold) {
-		return false, nil
+	if uptime < uptimeThreshold {
+		return false, errors.New(fmt.Sprintf("Uptime threshold not reached"))
+	}
+
+	if progress.CurrentBlock < progress.HighestBlock {
+		return false, errors.New(fmt.Sprintf("The current block is less than the highest block"))
+	}
+
+	if peerCount < int(peerCountThreshold) {
+		return false, errors.New(fmt.Sprintf("Peer count threshold not reached"))
 	}
 
 	if blockTime > 0 && time.Since(progress.CurrentBlockTime.Time()) > blockTime {
-		return false, nil
+		return false, errors.New("block time threshold exceeded")
 	}
 
 	return true, nil

go.mod

@@ -44,6 +44,6 @@ require (
 	gopkg.in/urfave/cli.v1 v1.20.0
 )
 
-replace github.com/ethereum/go-ethereum => github.com/faircrypto/go-ethereum v1.10.8-ftm-rc9.0.20240322234738-3d5e1d6e7883
+replace github.com/ethereum/go-ethereum => github.com/faircrypto/go-ethereum v1.10.8-ftm-rc9.0.20240326154128-612f38eade68
 
 replace github.com/dvyukov/go-fuzz => github.com/guzenok/go-fuzz v0.0.0-20210103140116-f9104dfb626f

go.sum

@@ -162,8 +162,8 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7
 github.com/etcd-io/bbolt v1.3.3/go.mod h1:ZF2nL25h33cCyBtcyWeZ2/I3HQOfTP+0PIEvHjkjCrw=
 github.com/evalphobia/logrus_sentry v0.8.2 h1:dotxHq+YLZsT1Bb45bB5UQbfCh3gM/nFFetyN46VoDQ=
 github.com/evalphobia/logrus_sentry v0.8.2/go.mod h1:pKcp+vriitUqu9KiWj/VRFbRfFNUwz95/UkgG8a6MNc=
-github.com/faircrypto/go-ethereum v1.10.8-ftm-rc9.0.20240322234738-3d5e1d6e7883 h1:ajz2flH7mV4U4WwXAP6XKssEXL8W4i53d/a/2QLPRdc=
-github.com/faircrypto/go-ethereum v1.10.8-ftm-rc9.0.20240322234738-3d5e1d6e7883/go.mod h1:IeQDjWCNBj/QiWIPosfF6/kRC6pHPNs7W7LfBzjj+P4=
+github.com/faircrypto/go-ethereum v1.10.8-ftm-rc9.0.20240326154128-612f38eade68 h1:CJNZXs0JDx5kafKqlWzQf7uFgxvtnrC5jr6sZWLiGfw=
+github.com/faircrypto/go-ethereum v1.10.8-ftm-rc9.0.20240326154128-612f38eade68/go.mod h1:IeQDjWCNBj/QiWIPosfF6/kRC6pHPNs7W7LfBzjj+P4=
 github.com/fasthttp-contrib/websocket v0.0.0-20160511215533-1f3b11f56072/go.mod h1:duJ4Jxv5lDcvg4QuQr0oowTf7dz4/CR8NtyCooz9HL8=
 github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=