solution: configuration for Websocket proxy

src/main/kotlin/io/emeraldpay/dshackle/config/ProxyConfigReader.kt

@@ -58,6 +58,9 @@ class ProxyConfigReader : YamlConfigReader(), ConfigReader<ProxyConfig> {
         getValueAsBool(input, "enabled")?.let {
             config.enabled = it
         }
+        getValueAsBool(input, "websocket")?.let {
+            config.websocketEnabled = it
+        }
         val currentRoutes = HashSet<String>()
         getList<MappingNode>(input, "routes")?.let { routes ->
             config.routes = routes.value.map { route ->

src/test/groovy/io/emeraldpay/dshackle/config/ProxyConfigReaderSpec.groovy

@@ -30,6 +30,7 @@ class ProxyConfigReaderSpec extends Specification {
 
         then:
         act.enabled
+        act.websocketEnabled
         act.port == 8080
         act.host == '127.0.0.1'
         act.routes.size() == 1
@@ -39,6 +40,17 @@ class ProxyConfigReaderSpec extends Specification {
         }
     }
 
+    def "Read proxy config with websocket disabled"() {
+        setup:
+        def config = this.class.getClassLoader().getResourceAsStream("dshackle-proxy-no-ws.yaml")
+        when:
+        def act = reader.read(config)
+
+        then:
+        act.enabled
+        !act.websocketEnabled
+    }
+
     def "Read proxy config with two elements"() {
         setup:
         def config = this.class.getClassLoader().getResourceAsStream("dshackle-proxy-two.yaml")

src/test/resources/dshackle-proxy-no-ws.yaml

@@ -0,0 +1,6 @@
+proxy:
+  port: 8080
+  websocket: false
+  routes:
+    - id: ethereum
+      blockchain: ethereum