fix: allow grpc server enabled even when api off (#14890)

.github/workflows/test.yml

@@ -442,6 +442,7 @@ jobs:
         id: git_diff
         with:
           PATTERNS: |
+            contrib/rosetta/*
             tools/rosetta/**/*.go
             tools/rosetta/go.mod
             tools/rosetta/go.sum

contrib/rosetta/configuration/data.sh

@@ -33,7 +33,7 @@ sed -i 's/127.0.0.1/0.0.0.0/g' /root/.simapp/config/config.toml
 
 # start simd
 echo starting simd...
-simd start --pruning=nothing --api.enable true &
+simd start --pruning=nothing &
 pid=$!
 echo simd started with PID $pid
 

contrib/rosetta/docker-compose.yaml

@@ -3,7 +3,7 @@ version: "3"
 services:
   cosmos:
     image: rosetta-ci:latest
-    command: ["simd", "start", "--pruning", "nothing", "--grpc.enable", "true", "--grpc.address", "0.0.0.0:9090", "--grpc-web.enable", "true", "--api.enable", "true"]
+    command: ["simd", "start", "--pruning", "nothing", "--grpc.enable", "true", "--grpc.address", "0.0.0.0:9090", "--grpc-web.enable", "true"]
     ports:
       - 9090:9090
       - 26657:26657

server/start.go

@@ -441,6 +441,17 @@ func startInProcess(ctx *Context, clientCtx client.Context, appCreator types.App
 		}
 	}
 
+	// If gRPC is enabled but API is not, we need to start the gRPC server
+	// without the API server. If the API server is enabled, we've already
+	// started the grpc server.
+	if config.GRPC.Enable && !config.API.Enable {
+		grpcSrv, err = servergrpc.StartGRPCServer(clientCtx, app, config.GRPC)
+		if err != nil {
+			return err
+		}
+		defer grpcSrv.Stop()
+	}
+
 	// At this point it is safe to block the process if we're in gRPC only mode as
 	// we do not need to handle any Tendermint related processes.
 	if gRPCOnly {