chore: Improve errors readability

pkg/relayer/proxy/errors.go

@@ -3,11 +3,11 @@ package proxy
 import sdkerrors "cosmossdk.io/errors"
 
 var (
-	codespace                            = "relayer/proxy"
-	ErrUnsupportedRPCType                = sdkerrors.Register(codespace, 1, "unsupported rpc type")
-	ErrInvalidRelayRequestSignature      = sdkerrors.Register(codespace, 2, "invalid relay request signature")
-	ErrInvalidSession                    = sdkerrors.Register(codespace, 3, "invalid session")
-	ErrInvalidSupplier                   = sdkerrors.Register(codespace, 4, "invalid supplier")
-	ErrUndefinedSigningKeyName           = sdkerrors.Register(codespace, 5, "undefined signing key name")
-	ErrUndefinedProxiedServicesEndpoints = sdkerrors.Register(codespace, 6, "undefined proxied services endpoints")
+	codespace                                        = "relayer_proxy"
+	ErrRelayerProxyUnsupportedRPCType                = sdkerrors.Register(codespace, 1, "unsupported relayer proxy rpc type")
+	ErrRelayerProxyInvalidRelayRequestSignature      = sdkerrors.Register(codespace, 2, "invalid relay request signature")
+	ErrRelayerProxyInvalidSession                    = sdkerrors.Register(codespace, 3, "invalid session in relayer request")
+	ErrRelayerProxyInvalidSupplier                   = sdkerrors.Register(codespace, 4, "invalid relayer proxy supplier")
+	ErrRelayerProxyUndefinedSigningKeyName           = sdkerrors.Register(codespace, 5, "undefined relayer proxy signing key name")
+	ErrRelayerProxyUndefinedProxiedServicesEndpoints = sdkerrors.Register(codespace, 6, "undefined proxied services endpoints for relayer proxy")
 )

pkg/relayer/proxy/proxy.go

@@ -158,13 +158,14 @@ func (rp *relayerProxy) ServedRelays() observable.Observable[*types.Relay] {
 }
 
 // validateConfig validates the relayer proxy's configuration options and returns an error if it is invalid.
+// TODO_TEST: Add tests for validating these configurations.
 func (rp *relayerProxy) validateConfig() error {
 	if rp.signingKeyName == "" {
-		return ErrUndefinedSigningKeyName
+		return ErrRelayerProxyUndefinedSigningKeyName
 	}
 
 	if rp.proxiedServicesEndpoints == nil {
-		return ErrUndefinedProxiedServicesEndpoints
+		return ErrRelayerProxyUndefinedProxiedServicesEndpoints
 	}
 
 	return nil

pkg/relayer/proxy/relay_verifier.go

@@ -37,7 +37,7 @@ func (rp *relayerProxy) VerifyRelayRequest(
 	}
 
 	if !account.GetPubKey().VerifySignature(hash, relayRequest.Meta.Signature) {
-		return ErrInvalidRelayRequestSignature
+		return ErrRelayerProxyInvalidRelayRequestSignature
 	}
 
 	// Query for the current session to check if relayRequest sessionId matches the current session.
@@ -62,7 +62,7 @@ func (rp *relayerProxy) VerifyRelayRequest(
 	// matches the relayRequest sessionId.
 	// TODO_INVESTIGATE: Revisit the assumptions above at some point in the future, but good enough for now.
 	if session.SessionId != relayRequest.Meta.SessionHeader.SessionId {
-		return ErrInvalidSession
+		return ErrRelayerProxyInvalidSession
 	}
 
 	// Check if the relayRequest is allowed to be served by the relayer proxy.
@@ -72,5 +72,5 @@ func (rp *relayerProxy) VerifyRelayRequest(
 		}
 	}
 
-	return ErrInvalidSupplier
+	return ErrRelayerProxyInvalidSupplier
 }

pkg/relayer/proxy/server_builder.go

@@ -48,7 +48,7 @@ func (rp *relayerProxy) BuildProvidedServices(ctx context.Context) error {
 					rp,
 				)
 			default:
-				return ErrUnsupportedRPCType
+				return ErrRelayerProxyUnsupportedRPCType
 			}
 
 			serviceEndpoints = append(serviceEndpoints, server)