Node.js
Node.js
EC2 Check Instance Status
See more Amazon EC2 Examples
Demonstrates how to send a request to check the status of Amazon EC2 instances.Chilkat Node.js Downloads
NODEJS_PRELUDE
function chilkatExample() {
var success = false;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
var rest = new chilkat.Rest();
// Connect to the Amazon AWS server.
// such as https://ec2.amazonaws.com/
var bTls = true;
var port = 443;
var bAutoReconnect = true;
success = rest.Connect("ec2.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);
// Provide AWS credentials for the REST call.
var authAws = new chilkat.AuthAws();
authAws.AccessKey = "AWS_ACCESS_KEY";
authAws.SecretKey = "AWS_SECRET_KEY";
// the region should match the region part of the domain passed to the REST connect method (above).
authAws.Region = "us-west-2";
authAws.ServiceName = "ec2";
rest.SetAuthAws(authAws);
rest.AddQueryParam("Action","DescribeInstanceStatus");
rest.AddQueryParam("Version","2016-11-15");
rest.AddQueryParam("InstanceId.1","i-999719995399c9999");
// If you have additional instances to check, then add them with .2, .3, etc.
rest.AddQueryParam("InstanceId.2","i-999719995399c0000");
rest.AddQueryParam("InstanceId.3","i-999719995399c0111");
// ...
// Instead of checking specific instances, you can check all instances by
// sending the IncludeAllInstances param
rest.AddQueryParam("IncludeAllInstances","true");
var responseXml = rest.FullRequestNoBody("GET","/");
if (rest.LastMethodSuccess !== true) {
console.log(rest.LastErrorText);
return;
}
// A successful response will have a status code equal to 200.
if (rest.ResponseStatusCode !== 200) {
console.log("response status code = " + rest.ResponseStatusCode);
console.log("response status text = " + rest.ResponseStatusText);
console.log("response header: " + rest.ResponseHeader);
console.log("response body: " + responseXml);
return;
}
// Examine the successful XML response.
var xml = new chilkat.Xml();
xml.LoadXml(responseXml);
console.log(xml.GetXml());
// Here is a sample response:
// Use this online tool to generate parsing code from sample XML:
// Generate Parsing Code from XML
// <DescribeInstanceStatusResponse xmlns="http://ec2.amazonaws.com/doc/2016-11-15/">
// <requestId>3be1508e-c444-4fef-89cc-0b1223c4f02fEXAMPLE</requestId>
// <instanceStatusSet>
// <item>
// <instanceId>i-1234567890abcdef0</instanceId>
// <availabilityZone>us-east-1d</availabilityZone>
// <instanceState>
// <code>16</code>
// <name>running</name>
// </instanceState>
// <systemStatus>
// <status>impaired</status>
// <details>
// <item>
// <name>reachability</name>
// <status>failed</status>
// <impairedSince>YYYY-MM-DDTHH:MM:SS.000Z</impairedSince>
// </item>
// </details>
// </systemStatus>
// <instanceStatus>
// <status>impaired</status>
// <details>
// <item>
// <name>reachability</name>
// <status>failed</status>
// <impairedSince>YYYY-MM-DDTHH:MM:SS.000Z</impairedSince>
// </item>
// </details>
// </instanceStatus>
// <eventsSet>
// <item>
// <code>instance-retirement</code>
// <description>The instance is running on degraded hardware</description>
// <notBefore>YYYY-MM-DDTHH:MM:SS+0000</notBefore>
// <notAfter>YYYY-MM-DDTHH:MM:SS+0000</notAfter>
// </item>
// </eventsSet>
// </item>
// <item>
// <instanceId>i-0598c7d356eba48d7</instanceId>
// <availabilityZone>us-east-1d</availabilityZone>
// <instanceState>
// <code>16</code>
// <name>running</name>
// </instanceState>
// <systemStatus>
// <status>ok</status>
// <details>
// <item>
// <name>reachability</name>
// <status>passed</status>
// </item>
// </details>
// </systemStatus>
// <instanceStatus>
// <status>ok</status>
// <details>
// <item>
// <name>reachability</name>
// <status>passed</status>
// </item>
// </details>
// </instanceStatus>
// <eventsSet>
// <item>
// <code>instance-reboot</code>
// <description>The instance is scheduled for a reboot</description>
// <notBefore>YYYY-MM-DDTHH:MM:SS+0000</notBefore>
// <notAfter>YYYY-MM-DDTHH:MM:SS+0000</notAfter>
// </item>
// </eventsSet>
// </item>
// <item>
// <instanceId>i-0987654321abcdef0</instanceId>
// <availabilityZone>us-east-1d</availabilityZone>
// <instanceState>
// <code>16</code>
// <name>running</name>
// </instanceState>
// <systemStatus>
// <status>ok</status>
// <details>
// <item>
// <name>reachability</name>
// <status>passed</status>
// </item>
// </details>
// </systemStatus>
// <instanceStatus>
// <status>ok</status>
// <details>
// <item>
// <name>reachability</name>
// <status>passed</status>
// </item>
// </details>
// </instanceStatus>
// </item>
// <item>
// <instanceId>i-0598c7d356eba48d8</instanceId>
// <availabilityZone>us-east-1d</availabilityZone>
// <instanceState>
// <code>16</code>
// <name>running</name>
// </instanceState>
// <systemStatus>
// <status>ok</status>
// <details>
// <item>
// <name>reachability</name>
// <status>passed</status>
// </item>
// </details>
// </systemStatus>
// <instanceStatus>
// <status>insufficient-data</status>
// <details>
// <item>
// <name>reachability</name>
// <status>insufficient-data</status>
// </item>
// </details>
// </instanceStatus>
// </item>
// </instanceStatusSet>
// </DescribeInstanceStatusResponse>
}
chilkatExample();