update

elasticsearch/elasticsearch.md

@@ -0,0 +1,25 @@
+# elasticsearch
+
+## goang sdk
+
+```go
+// https://github.com/elastic/go-elasticsearch
+import (
+	github.com/elastic/go-elasticsearch/v7
+)
+
+es, err := elasticsearch.NewClient(elasticsearch.Config{})
+
+// create document
+			req := esapi.IndexRequest{
+				Index: "sample_edge",
+				Body:  bytes.NewReader(body),
+			}
+			res, err := req.Do(context.Background(), es)
+			if err != nil {
+				return
+			}
+			defer res.Body.Close()
+
+```
+