refactor: State Streaming Docs + Explicit Config Support (#13894)

simapp/app.go

@@ -14,6 +14,7 @@ import (
 	dbm "github.com/tendermint/tm-db"
 
 	"cosmossdk.io/depinject"
+
 	"github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/codec"
@@ -266,10 +267,9 @@ func NewSimApp(
 
 	app.App = appBuilder.Build(logger, db, traceStore, baseAppOptions...)
 
-	// configure state listening capabilities using AppOptions
-	// we are doing nothing with the returned streamingServices and waitGroup in this case
+	// load state streaming if enabled
 	if _, _, err := streaming.LoadStreamingServices(app.App.BaseApp, appOpts, app.appCodec, app.keys); err != nil {
-		fmt.Println(err.Error())
+		fmt.Printf("failed to load state streaming: %s", err)
 		os.Exit(1)
 	}
 

simapp/app_legacy.go

@@ -17,6 +17,7 @@ import (
 	dbm "github.com/tendermint/tm-db"
 
 	simappparams "cosmossdk.io/simapp/params"
+
 	"github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/client/flags"
@@ -246,10 +247,9 @@ func NewSimApp(
 	// not include this key.
 	memKeys := sdk.NewMemoryStoreKeys(capabilitytypes.MemStoreKey, "testingkey")
 
-	// configure state listening capabilities using AppOptions
-	// we are doing nothing with the returned streamingServices and waitGroup in this case
+	// load state streaming if enabled
 	if _, _, err := streaming.LoadStreamingServices(bApp, appOpts, appCodec, keys); err != nil {
-		fmt.Println(err.Error())
+		fmt.Printf("failed to load state streaming: %s", err)
 		os.Exit(1)
 	}