• The Amazon Systems Manager CloudWatch Dashboard will no longer be available after April 30, 2026. Customers can continue to use Amazon CloudWatch console to view, create, and manage their Amazon CloudWatch dashboards, just as they do today. For more information, see [Amazon CloudWatch Dashboard documentation](https://docs.amazonaws.cn/AmazonCloudWatch/latest/monitoring/CloudWatch_Dashboards.html).
# Use `DescribeParameters` with an Amazon SDK or CLI
The following code examples show how to use `DescribeParameters`.
------
#### [ CLI ]
**Amazon CLI**
**Example 1: To list all parameters**
The following `describe-parameters` example lists all parameters in the current Amazon account and Region.
```
aws ssm describe-parameters
```
Output:
```
{
"Parameters": [
{
"Name": "MySecureStringParameter",
"Type": "SecureString",
"KeyId": "alias/aws/ssm",
"LastModifiedDate": 1582155479.205,
"LastModifiedUser": "arn:aws:sts::111222333444:assumed-role/Admin/Richard-Roe-Managed",
"Description": "This is a SecureString parameter",
"Version": 2,
"Tier": "Advanced",
"Policies": [
{
"PolicyText": "{\"Type\":\"Expiration\",\"Version\":\"1.0\",\"Attributes\":{\"Timestamp\":\"2020-07-07T22:30:00Z\"}}",
"PolicyType": "Expiration",
"PolicyStatus": "Pending"
},
{
"PolicyText": "{\"Type\":\"ExpirationNotification\",\"Version\":\"1.0\",\"Attributes\":{\"Before\":\"12\",\"Unit\":\"Hours\"}}",
"PolicyType": "ExpirationNotification",
"PolicyStatus": "Pending"
}
]
},
{
"Name": "MyStringListParameter",
"Type": "StringList",
"LastModifiedDate": 1582154764.222,
"LastModifiedUser": "arn:aws:iam::111222333444:user/Mary-Major",
"Description": "This is a StringList parameter",
"Version": 1,
"Tier": "Standard",
"Policies": []
},
{
"Name": "MyStringParameter",
"Type": "String",
"LastModifiedDate": 1582154711.976,
"LastModifiedUser": "arn:aws:iam::111222333444:user/Alejandro-Rosalez",
"Description": "This is a String parameter",
"Version": 1,
"Tier": "Standard",
"Policies": []
},
{
"Name": "latestAmi",
"Type": "String",
"LastModifiedDate": 1580862415.521,
"LastModifiedUser": "arn:aws:sts::111222333444:assumed-role/lambda-ssm-role/Automation-UpdateSSM-Param",
"Version": 3,
"Tier": "Standard",
"Policies": []
}
]
}
```
**Example 2: To list all parameters matching specific metadata**
This `describe-parameters` example lists all parameters matching a filter.
aws ssm describe-parameters --filters "Key=Type,Values=StringList"
Output:
```
{
"Parameters": [
{
"Name": "MyStringListParameter",
"Type": "StringList",
"LastModifiedDate": 1582154764.222,
"LastModifiedUser": "arn:aws:iam::111222333444:user/Mary-Major",
"Description": "This is a StringList parameter",
"Version": 1,
"Tier": "Standard",
"Policies": []
}
]
}
```
For more information, see [Searching for Systems Manager Parameters](https://docs.aws.amazon.com/systems-manager/latest/userguide/parameter-search.html) in the *Amazon Systems Manager User Guide*.
+ For API details, see [DescribeParameters](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ssm/describe-parameters.html) in *Amazon CLI Command Reference*.
------
#### [ Java ]
**SDK for Java 2.x**
There's more on GitHub. Find the complete example and learn how to set up and run in the [Amazon Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/ssm#code-examples).
```
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.ssm.SsmClient;
import software.amazon.awssdk.services.ssm.model.GetParameterRequest;
import software.amazon.awssdk.services.ssm.model.GetParameterResponse;
import software.amazon.awssdk.services.ssm.model.SsmException;
/**
* Before running this Java V2 code example, set up your development
* environment, including your credentials.
*
* For more information, see the following documentation topic:
*
* https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
*/
public class GetParameter {
public static void main(String[] args) {
final String usage = """
Usage:
Where:
paraName - The name of the parameter.
""";
if (args.length != 1) {
System.out.println(usage);
System.exit(1);
}
String paraName = args[0];
Region region = Region.US_EAST_1;
SsmClient ssmClient = SsmClient.builder()
.region(region)
.build();
getParaValue(ssmClient, paraName);
ssmClient.close();
}
public static void getParaValue(SsmClient ssmClient, String paraName) {
try {
GetParameterRequest parameterRequest = GetParameterRequest.builder()
.name(paraName)
.build();
GetParameterResponse parameterResponse = ssmClient.getParameter(parameterRequest);
System.out.println("The parameter value is " + parameterResponse.parameter().value());
} catch (SsmException e) {
System.err.println(e.getMessage());
System.exit(1);
}
}
}
```
+ For API details, see [DescribeParameters](https://docs.amazonaws.cn/goto/SdkForJavaV2/ssm-2014-11-06/DescribeParameters) in *Amazon SDK for Java 2.x API Reference*.
------
#### [ PowerShell ]
**Tools for PowerShell V4**
**Example 1: This example lists all parameters.**
```
Get-SSMParameterList
```
**Output:**
```
Description :
KeyId :
LastModifiedDate : 3/3/2017 6:58:23 PM
LastModifiedUser : arn:aws:iam::123456789012:user/admin
Name : Welcome
Type : String
```
+ For API details, see [DescribeParameters](https://docs.aws.amazon.com/powershell/v4/reference) in *Amazon Tools for PowerShell Cmdlet Reference (V4)*.
**Tools for PowerShell V5**
**Example 1: This example lists all parameters.**
```
Get-SSMParameterList
```
**Output:**
```
Description :
KeyId :
LastModifiedDate : 3/3/2017 6:58:23 PM
LastModifiedUser : arn:aws:iam::123456789012:user/admin
Name : Welcome
Type : String
```
+ For API details, see [DescribeParameters](https://docs.aws.amazon.com/powershell/v5/reference) in *Amazon Tools for PowerShell Cmdlet Reference (V5)*.
------
#### [ Rust ]
**SDK for Rust**
There's more on GitHub. Find the complete example and learn how to set up and run in the [Amazon Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/rustv1/examples/ssm#code-examples).
```
async fn show_parameters(client: &Client) -> Result<(), Error> {
let resp = client.describe_parameters().send().await?;
for param in resp.parameters() {
println!(" {}", param.name().unwrap_or_default());
}
Ok(())
}
```
+ For API details, see [DescribeParameters](https://docs.rs/aws-sdk-ssm/latest/aws_sdk_ssm/client/struct.Client.html#method.describe_parameters) in *Amazon SDK for Rust API reference*.
------
For a complete list of Amazon SDK developer guides and code examples, see [Using this service with an Amazon SDK](sdk-general-information-section.md). This topic also includes information about getting started and details about previous SDK versions.