Add AwsSigV4 signing functionality

README.md

@@ -12,7 +12,7 @@ OpenSearch Node.js client
 - [Welcome!](#welcome)
 - [Example use](#example-use)
   - [Setup](#setup)
-  - [Sample code](#sample-code)
+- [Sample code](#sample-code)
 - [Project Resources](#project-resources)
 - [Code of Conduct](#code-of-conduct)
 - [License](#license)
@@ -44,156 +44,10 @@ Then require the client:
 const { Client } = require('@opensearch-project/opensearch');
 ```
 
-### Sample code
+## Sample code
+
+Please see the [USER_GUIDE](USER_GUIDE.md) for code snippets.
 
-```javascript
-'use strict';
-
-var host = 'localhost';
-var protocol = 'https';
-var port = 9200;
-var auth = 'admin:admin'; // For testing only. Don't store credentials in code.
-var ca_certs_path = '/full/path/to/root-ca.pem';
-
-// Optional client certificates if you don't want to use HTTP basic authentication.
-// var client_cert_path = '/full/path/to/client.pem'
-// var client_key_path = '/full/path/to/client-key.pem'
-
-// Create a client with SSL/TLS enabled.
-var { Client } = require('@opensearch-project/opensearch');
-var fs = require('fs');
-var client = new Client({
-  node: protocol + '://' + auth + '@' + host + ':' + port,
-  ssl: {
-    ca: fs.readFileSync(ca_certs_path),
-    // You can turn off certificate verification (rejectUnauthorized: false) if you're using self-signed certificates with a hostname mismatch.
-    // cert: fs.readFileSync(client_cert_path),
-    // key: fs.readFileSync(client_key_path)
-  },
-});
-
-async function search() {
-
-  // Create an index with non-default settings.
-  var index_name = 'books';
-  var settings = {
-    settings: {
-      index: {
-        number_of_shards: 4,
-        number_of_replicas: 3,
-      },
-    },
-  };
-
-  var response = await client.indices.create({
-    index: index_name,
-    body: settings,
-  });
-
-  console.log('Creating index:');
-  console.log(response.body);
-
-  // Add a document to the index.
-  var document = {
-    title: 'The Outsider',
-    author: 'Stephen King',
-    year: '2018',
-    genre: 'Crime fiction',
-  };
-
-  var id = '1';
-
-  var response = await client.index({
-    id: id,
-    index: index_name,
-    body: document,
-    refresh: true,
-  });
-
-  console.log('Adding document:');
-  console.log(response.body);
-
-  // Add documents in bulk
-  var bulk_documents = [
-    {
-        index: {
-            _index: 'books-king',
-            _id: '2'
-        }
-    },
-    {
-        title: 'IT',
-        author: 'Stephen Kings',
-        year: '1986',
-    },
-    {
-        create: {
-            _index: 'test',
-            _id: '3'
-        }
-    },
-    {
-        title: 'The Green Mile',
-        author: 'Stephen Kings',
-        year: '1996',
-    },
-    {
-        create: {
-            _index: 'test',
-            _id: '4'
-        }
-    },
-    {
-        title: 'Carrie',
-        author: 'Stephen Kings',
-        year: '1974',
-    }
-  ];
-
-  var response = await client.bulk({ body: bulk_documents });
-
-  console.log('Adding documents using the bulk API')
-  console.log(response.body);
-
-  // Search for a document.
-  var query = {
-    query: {
-      match: {
-        title: {
-          query: 'The Outsider',
-        },
-      },
-    },
-  };
-
-  var response = await client.search({
-    index: index_name,
-    body: query,
-  });
-
-  console.log('Search results:');
-  console.log(response.body.hits);
-
-  // Delete a document.
-  var response = await client.delete({
-    index: index_name,
-    id: id,
-  });
-
-  console.log('Deleting document:');
-  console.log(response.body);
-
-  // Delete the index.
-  var response = await client.indices.delete({
-    index: index_name,
-  });
-
-  console.log('Deleting index:');
-  console.log(response.body);
-}
-
-search().catch(console.log);
-```
 
 ## Project Resources
 

USER_GUIDE.md

@@ -0,0 +1,150 @@
+# User Guide
+
+- [Initializing a Client](#initializing-a-client)
+  - [To authenticate with the Amazon OpenSearch Service use AwsSigv4Signer](#to-authenticate-with-the-amazon-opensearch-service-use-awssigv4signer)
+- [Create an Index](#create-an-index)
+- [Add a Document to the Index](#add-a-document-to-the-index)
+- [Search for the Document](#search-for-the-document)
+- [Delete the document](#delete-the-document)
+- [Delete the index](#delete-the-index)
+
+
+## Initializing a Client
+```javascript
+'use strict';
+
+var host = 'localhost';
+var protocol = 'https';
+var port = 9200;
+var auth = 'admin:admin'; // For testing only. Don't store credentials in code.
+var ca_certs_path = '/full/path/to/root-ca.pem';
+
+// Optional client certificates if you don't want to use HTTP basic authentication.
+// var client_cert_path = '/full/path/to/client.pem'
+// var client_key_path = '/full/path/to/client-key.pem'
+
+// Create a client with SSL/TLS enabled.
+var { Client } = require('@opensearch-project/opensearch');
+var fs = require('fs');
+var client = new Client({
+  node: protocol + '://' + auth + '@' + host + ':' + port,
+  ssl: {
+    ca: fs.readFileSync(ca_certs_path),
+    // You can turn off certificate verification (rejectUnauthorized: false) if you're using self-signed certificates with a hostname mismatch.
+    // cert: fs.readFileSync(client_cert_path),
+    // key: fs.readFileSync(client_key_path)
+  },
+});
+```
+
+### To authenticate with the [Amazon OpenSearch Service](https://aws.amazon.com/opensearch-service/) use AwsSigv4Signer
+
+```javascript
+const endpoint = ""; // OpenSearch domain URL e.g. https://search-xxx.region.es.amazonaws.com
+const { Client } = require('@opensearch-project/opensearch');
+const { AwsSigv4Signer } = require('@opensearch-project/opensearch/aws');
+const { defaultProvider } = require("@aws-sdk/credential-provider-node");
+
+async function getClient() {
+  const credentials = await defaultProvider()();
+  var client = new Client({
+    ...AwsSigv4Signer({
+      credentials: credentials,
+      region: "us-west-2",
+    }),
+    node: endpoint,
+  });
+  return client;
+}
+```
+
+## Create an Index
+
+```javascript
+  var index_name = 'books';
+  var settings = {
+    settings: {
+      index: {
+        number_of_shards: 4,
+        number_of_replicas: 3,
+      },
+    },
+  };
+
+  var response = await client.indices.create({
+    index: index_name,
+    body: settings,
+  });
+
+  console.log('Creating index:');
+  console.log(response.body);
+```
+
+## Add a Document to the Index 
+
+```javascript
+  var document = {
+    title: 'The Outsider',
+    author: 'Stephen King',
+    year: '2018',
+    genre: 'Crime fiction',
+  };
+
+  var id = '1';
+
+  var response = await client.index({
+    id: id,
+    index: index_name,
+    body: document,
+    refresh: true,
+  });
+
+  console.log('Adding document:');
+  console.log(response.body);
+```
+
+## Search for the Document
+
+```javascript
+  var query = {
+    query: {
+      match: {
+        title: {
+          query: 'The Outsider',
+        },
+      },
+    },
+  };
+
+  var response = await client.search({
+    index: index_name,
+    body: query,
+  });
+
+  console.log('Search results:');
+  console.log(response.body.hits);
+```
+
+## Delete the document
+
+```javascript
+  var response = await client.delete({
+    index: index_name,
+    id: id,
+  });
+
+  console.log('Deleting document:');
+  console.log(response.body);
+```
+
+## Delete the index
+
+```javascript
+  var response = await client.indices.delete({
+    index: index_name,
+  });
+
+  console.log('Deleting index:');
+  console.log(response.body);
+}
+```