DSL initial commit

dsl/examples/extend-aggregations.ts

@@ -0,0 +1,47 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { Client } from '../../'
+import { Q, A } from '../'
+
+async function run () {
+  const client = new Client({ node: 'http://localhost:9200' })
+
+  // 'committers' is the name of the aggregation
+  let committersAgg = A.committers.terms('committer.name.keyword')
+  // instead of pass other aggregations as parameter
+  // to the parent aggregation, you can conditionally add them
+  if (Math.random() >= 0.5) {
+    committersAgg = A.committers.aggs(
+      committersAgg, A.line_stats.stats('stat.insertions')
+    )
+  }
+
+  const { body } = await client.search({
+    index: 'git',
+    body: Q(
+      Q.size(0),
+      A(committersAgg)
+    )
+  })
+
+  console.log(body.aggregations)
+}
+
+run().catch(console.log)