WIP: initial prototype

- Added querystring support
- Added support for already serialized bodies

lib/Serializer.js

@@ -1,5 +1,6 @@
 'use strict'
 
+const { stringify } = require('querystring')
 const debug = require('debug')('elasticsearch')
 const { SerializationError, DeserializationError } = require('./errors')
 
@@ -35,6 +36,19 @@ class Serializer {
     }
     return ndjson
   }
+
+  qserialize (object) {
+    debug('qserialize', object)
+    // arrays should be serialized as comma separated list
+    const keys = Object.keys(object)
+    for (var i = 0, len = keys.length; i < len; i++) {
+      var key = keys[i]
+      if (Array.isArray(object[key]) === true) {
+        object[key] = object[key].join(',')
+      }
+    }
+    return stringify(object)
+  }
 }
 
 module.exports = Serializer