DSL initial commit

dsl/examples/extend-queries.ts

@@ -0,0 +1,66 @@
+/*
+ * 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 } from '../'
+
+async function run () {
+  const client = new Client({ node: 'http://localhost:9200' })
+
+  // the result must be fixes done by delvedor
+  let query = Q.bool(
+    Q.must(Q.match('description', 'fix')),
+    Q.filter(Q.term('author.name', 'delvedor'))
+  )
+
+  // Based on a condition, we want to enrich our query
+  if (Math.random() >= 0.5) {
+    // the results must be fixes done by delvedor
+    // on test or do files
+    const should = Q.should(
+      Q.term('files', 'test'),
+      Q.term('files', 'docs')
+    )
+    // The code below produces the same as the one above
+    // If you need to check multiple values for the same key,
+    // you can pass an array of strings instead of calling
+    // the query function multiple times
+    // ```
+    //   const should = Q.should(
+    //    Q.term('files', ['test', 'docs'])
+    //   )
+    // ```
+    query = Q.and(query, should)
+  } else {
+    // the results must be fixes or features done by delvedor
+    const must = Q.must(
+      Q.match('description', 'feature')
+    )
+    query = Q.or(query, must)
+  }
+
+  const { body } = await client.search({
+    index: 'git',
+    body: query
+  })
+
+  console.log(body.hits.hits)
+}
+
+run().catch(console.log)