Use custom client error class

lib/errors.js

@@ -1,8 +1,15 @@
 'use strict'
 
-class TimeoutError extends Error {
+class ElasticsearchClientError extends Error {
+  constructor (message) {
+    super(message)
+    this.name = 'ElasticsearchClientError'
+  }
+}
+
+class TimeoutError extends ElasticsearchClientError {
   constructor (message, request) {
-    super()
+    super(message)
     Error.captureStackTrace(this, TimeoutError)
     this.name = 'TimeoutError'
     this.message = message || 'Timeout Error'
@@ -10,9 +17,9 @@ class TimeoutError extends Error {
   }
 }
 
-class ConnectionError extends Error {
+class ConnectionError extends ElasticsearchClientError {
   constructor (message, request) {
-    super()
+    super(message)
     Error.captureStackTrace(this, ConnectionError)
     this.name = 'ConnectionError'
     this.message = message || 'Connection Error'
@@ -20,45 +27,45 @@ class ConnectionError extends Error {
   }
 }
 
-class NoLivingConnectionsError extends Error {
+class NoLivingConnectionsError extends ElasticsearchClientError {
   constructor (message) {
-    super()
+    super(message)
     Error.captureStackTrace(this, NoLivingConnectionsError)
     this.name = 'NoLivingConnectionsError'
     this.message = message || 'No Living Connections Error'
   }
 }
 
-class SerializationError extends Error {
+class SerializationError extends ElasticsearchClientError {
   constructor (message) {
-    super()
+    super(message)
     Error.captureStackTrace(this, SerializationError)
     this.name = 'SerializationError'
     this.message = message || 'Serialization Error'
   }
 }
 
-class DeserializationError extends Error {
+class DeserializationError extends ElasticsearchClientError {
   constructor (message) {
-    super()
+    super(message)
     Error.captureStackTrace(this, DeserializationError)
     this.name = 'DeserializationError'
     this.message = message || 'Deserialization Error'
   }
 }
 
-class ConfigurationError extends Error {
+class ConfigurationError extends ElasticsearchClientError {
   constructor (message) {
-    super()
+    super(message)
     Error.captureStackTrace(this, ConfigurationError)
     this.name = 'ConfigurationError'
     this.message = message || 'Configuration Error'
   }
 }
 
-class ResponseError extends Error {
+class ResponseError extends ElasticsearchClientError {
   constructor ({ body, statusCode, headers }) {
-    super()
+    super('Response Error')
     Error.captureStackTrace(this, ResponseError)
     this.name = 'ResponseError'
     this.message = (body && body.error && body.error.type) || 'Response Error'
@@ -71,6 +78,7 @@ class ResponseError extends Error {
 }
 
 module.exports = {
+  ElasticsearchClientError,
   TimeoutError,
   ConnectionError,
   NoLivingConnectionsError,