Use the official elasticsearch

This replaces the pelias-esclient library which has not been maintained
for a long time.

package.json

@@ -39,6 +39,7 @@
     "async": "^1.5.2",
     "check-types": "^6.0.0",
     "cluster2": "git://github.com/missinglink/cluster2.git#node_zero_twelve",
+    "elasticsearch": "^10.1.3",
     "express": "^4.8.8",
     "express-http-proxy": "^0.6.0",
     "extend": "3.0.0",
@@ -51,7 +52,6 @@
     "markdown": "0.5.0",
     "morgan": "1.7.0",
     "pelias-config": "^1.0.1",
-    "pelias-esclient": "1.0.0",
     "pelias-logger": "^0.0.8",
     "pelias-query": "^6.0.0",
     "pelias-suggester-pipeline": "2.0.4",

src/backend.js

@@ -1,6 +1,6 @@
 
 var Backend = require('geopipes-elasticsearch-backend'),
-    client = require('pelias-esclient')(),
+    client = require('elasticsearch').Client(),
     backends = {};
 
 function getBackend( index, type ){