There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.

# Use `ListTasks` with an AWS SDK or CLI
<a name="ecs_example_ecs_ListTasks_section"></a>

The following code examples show how to use `ListTasks`.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code examples: 
+  [Configure Amazon ECS Service Connect](ecs_example_ecs_ServiceConnect_085_section.md) 
+  [Create an Amazon ECS Linux task for the Fargate launch type](ecs_example_ecs_GettingStarted_086_section.md) 
+  [Creating an Amazon ECS service for the EC2 launch type](ecs_example_ecs_GettingStarted_018_section.md) 
+  [Get ARN information for clusters, services, and tasks](ecs_example_ecs_Scenario_GetClustersServicesAndTasks_section.md) 

------
#### [ .NET ]

**SDK for .NET**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv3/ECS#code-examples). 

```
    /// <summary>
    /// List task ARNs available.
    /// </summary>
    /// <param name="clusterARN">The arn of the ECS cluster.</param>
    /// <returns>The ARN list of tasks in given cluster.</returns>
    public async Task<List<string>> GetTaskARNsAsync(string clusterARN)
    {
        // Set up the request to describe the tasks in the service
        var listTasksRequest = new ListTasksRequest
        {
            Cluster = clusterARN
        };
        List<string> taskArns = new List<string>();

        // Call the ListTasks API operation and get the list of task ARNs
        var tasks = _ecsClient.Paginators.ListTasks(listTasksRequest);

        await foreach (var task in tasks.TaskArns)
        {
            if (task is null)
                continue;


            taskArns.Add(task);
        }

        if (taskArns.Count == 0)
        {
            _logger.LogWarning("No tasks found in cluster: " + clusterARN);
        }

        return taskArns;
    }
```
+  For API details, see [ListTasks](https://docs.aws.amazon.com/goto/DotNetSDKV3/ecs-2014-11-13/ListTasks) in *AWS SDK for .NET API Reference*. 

------
#### [ CLI ]

**AWS CLI**  
**Example 1: To list the tasks in a cluster**  
The following `list-tasks` example lists all of the tasks in a cluster.  

```
aws ecs list-tasks --cluster default
```
Output:  

```
{
    "taskArns": [
        "arn:aws:ecs:us-west-2:123456789012:task/a1b2c3d4-5678-90ab-cdef-11111EXAMPLE",
        "arn:aws:ecs:us-west-2:123456789012:task/a1b2c3d4-5678-90ab-cdef-22222EXAMPLE"
    ]
}
```
**Example 2: To list the tasks on a particular container instance**  
The following `list-tasks` example lists the tasks on a container instance, using the container instance UUID as a filter.  

```
aws ecs list-tasks --cluster default --container-instance a1b2c3d4-5678-90ab-cdef-33333EXAMPLE
```
Output:  

```
{
    "taskArns": [
        "arn:aws:ecs:us-west-2:123456789012:task/a1b2c3d4-5678-90ab-cdef-44444EXAMPLE"
    ]
}
```
For more information, see [Amazon ECS Task Definitions](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task_definitions.html) in the *Amazon ECS Developer Guide*.  
+  For API details, see [ListTasks](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/ecs/list-tasks.html) in *AWS CLI Command Reference*. 

------