refactor: improvements on rest v2 server (#22292)

scripts/init-simapp-v2.sh

@@ -9,7 +9,7 @@ if [ -d "$SIMD_HOME" ]; then rm -rv $SIMD_HOME; fi
 $SIMD_BIN config set client chain-id simapp-v2-chain
 $SIMD_BIN config set client keyring-backend test
 $SIMD_BIN config set client keyring-default-keyname alice
-$SIMD_BIN config set app api.enable true
+$SIMD_BIN config set app rest.enable true
 $SIMD_BIN keys add alice --indiscreet
 $SIMD_BIN keys add bob --indiscreet
 $SIMD_BIN init simapp-v2-node --chain-id simapp-v2-chain

server/v2/api/rest/server.go

@@ -12,7 +12,7 @@ import (
 )
 
 const (
-	ServerName = "rest-v2"
+	ServerName = "rest"
 )
 
 type Server[T transaction.Tx] struct {

tools/confix/data/v2-app.toml

@@ -41,6 +41,12 @@ max-recv-msg-size = 10485760
 # The default value is math.MaxInt32.
 max-send-msg-size = 2147483647
 
+[rest]
+# Enable defines if the REST server should be enabled.
+enable = true
+# Address defines the REST server address to bind to.
+address = 'localhost:8080'
+
 [server]
 # minimum-gas-prices defines the price which a validator is willing to accept for processing a transaction. A transaction's fees must meet the minimum of any denomination specified in this config (e.g. 0.25token1;0.0001token2).
 minimum-gas-prices = '0stake'