awshelloworld

README.md

@@ -1,6 +1,8 @@
-# AWS SDK for Node.js Sample Project
+# AWS SDK for Node.js - CloudWatchLog Sample Project
 
-A simple Node.js application illustrating usage of the AWS SDK for Node.js.
+1. simple Node.js - Simple application to upload Hello_world file to Amzon S3
+2. cloudwatchlog.js - Application which can retrive log groups and events from AWS CloudWatchLogs
+3. cloudwatchlog_filer.js - Application which can retive log based on filters from AWS CloudWatchLogs
 
 ## Requirements
 
@@ -19,19 +21,36 @@ to connect to AWS. You can do this by creating a file named "credentials" at ~/.
     aws_access_key_id = <your access key id>
     aws_secret_access_key = <your secret key>
 
+## Config - For CloudWatchLog Application
+
+You need to set up your AWS security credentials before the cloudwatchlog code is able
+to connect to AWS. You can do this by creating a file named "config.json" and saving the following lines in the file:
+
+    { 
+	"accessKeyId": "you_access_key>, 
+	"secretAccessKey": <your_secret_access_key>, 
+	"region": <required_region> 
+    }
+
 See the [Security Credentials](http://aws.amazon.com/security-credentials) page.
 It's also possible to configure your credentials via a configuration file or
 directly in source. See the AWS SDK for Node.js [Developer Guide](http://docs.aws.amazon.com/AWSJavaScriptSDK/guide/node-configuring.html)
 for more information.
 
-## Running the S3 sample
+## Running the application sample
 
 This sample application connects to Amazon's [Simple Storage Service (S3)](http://aws.amazon.com/s3),
 creates a bucket, and uploads a file to that bucket. The script will automatically
 create the file to upload. All you need to do is run it:
 
     node sample.js
 
+This cloudwatchlog application connects to Amazon's CloudWatchLog,and
+retive the Log Groups, Log Streams, and Log Events for Filters from there.  All you need to do is run it:
+
+    node cloudwatchlogs.js
+    node cloudwatchlogs_filter.js
+
 The S3 documentation has a good overview of the [restrictions for bucket names](http://docs.aws.amazon.com/AmazonS3/latest/dev/BucketRestrictions.html)
 for when you start making your own buckets.
 

cloudwatchlogs.js

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2013. Amazon Web Services, Inc. All Rights Reserved.
+ * 
+ * Licensed 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.
+**/
+
+// Load the SDK and UUID
+var AWS = require('aws-sdk');
+var uuid = require('node-uuid');
+
+AWS.config.loadFromPath('config.json');
+
+// Create an CloudWatchLog client
+var cloudwatchlogs = new AWS.CloudWatchLogs();
+
+var params = {
+  limit: 40
+};
+cloudwatchlogs.describeLogGroups(params, function(err, data) {
+  if (err) console.log(err, err.stack); // an error occurred
+  else     console.log(data);           // successful response
+});
+
+
+var params = {
+  logGroupName: 'API-Gateway-Execution-Logs_9upfn6zpoe/Sample2',
+  logStreamName: '4c56ff4ce4aaf9573aa5dff913df997a',
+  limit: 100,
+  startFromHead: true || false
+};
+cloudwatchlogs.getLogEvents(params, function(err, data) {
+  if (err) console.log(err, err.stack); // an error occurred
+  else     console.log(data);           // successful response
+});
+
+
+var params = {
+  logGroupName: 'API-Gateway-Execution-Logs_9upfn6zpoe/Sample2',
+  descending: true || false,
+  limit: 50
+};
+cloudwatchlogs.describeLogStreams(params, function(err, data) {
+  if (err) console.log(err, err.stack); // an error occurred
+  else     console.log(data);           // successful response
+});

cloudwatchlogs_filter.js

@@ -0,0 +1,27 @@
+// Load the SDK and UUID
+var AWS = require('aws-sdk');
+var uuid = require('node-uuid');
+
+AWS.config.loadFromPath('config.json');
+
+// Create an CloudWatchLog client
+var cloudwatchlogs = new AWS.CloudWatchLogs();
+
+
+var params = {
+  logGroupName: 'API-Gateway-Execution-Logs_9upfn6zpoe/Sample2', /* required */
+  filterPattern: 'GET',
+  interleaved: true || false,
+  limit: 100,
+  logStreamNames: [
+    '4c56ff4ce4aaf9573aa5dff913df997a',
+      'c45147dee729311ef5b5c3003946c48f',
+      '4e732ced3463d06de0ca9a15b6153677',
+      'cfecdb276f634854f3ef915e2e980c31'
+    /* more items */
+  ]
+};
+cloudwatchlogs.filterLogEvents(params, function(err, data) {
+  if (err) console.log(err, err.stack); // an error occurred
+  else     console.log(data);           // successful response
+});