Start an Amazon EC2 instance using an Amazon SDK

    /// <summary>
    /// Start an EC2 instance.
    /// </summary>
    /// <param name="ec2InstanceId">The instance Id of the Amazon EC2 instance
    /// to start.</param>
    /// <returns>Async task.</returns>
    public async Task StartInstances(string ec2InstanceId)
    {
        var request = new StartInstancesRequest
        {
            InstanceIds = new List<string> { ec2InstanceId },
        };

        var response = await _amazonEC2.StartInstancesAsync(request);

        if (response.StartingInstances.Count > 0)
        {
            var instances = response.StartingInstances;
            instances.ForEach(i =>
            {
                Console.WriteLine($"Successfully started the EC2 instance with instance ID: {i.InstanceId}.");
            });
        }
    }

    Aws::EC2::EC2Client ec2Client(clientConfiguration);

    Aws::EC2::Model::StartInstancesRequest start_request;
    start_request.AddInstanceIds(instanceId);
    start_request.SetDryRun(true);

    auto dry_run_outcome = ec2Client.StartInstances(start_request);
    if (dry_run_outcome.IsSuccess()) {
        std::cerr
                << "Failed dry run to start instance. A dry run should trigger an error."
                << std::endl;
        return false;
    }
    else if (dry_run_outcome.GetError().GetErrorType() !=
             Aws::EC2::EC2Errors::DRY_RUN_OPERATION) {
        std::cout << "Failed dry run to start instance " << instanceId << ": "
                  << dry_run_outcome.GetError().GetMessage() << std::endl;
        return false;
    }

    start_request.SetDryRun(false);
    auto start_instancesOutcome = ec2Client.StartInstances(start_request);

    if (!start_instancesOutcome.IsSuccess()) {
        std::cout << "Failed to start instance " << instanceId << ": " <<
                  start_instancesOutcome.GetError().GetMessage() << std::endl;
    }
    else {
        std::cout << "Successfully started instance " << instanceId <<
                  std::endl;
    }

    public static void startInstance(Ec2Client ec2, String instanceId) {
        Ec2Waiter ec2Waiter = Ec2Waiter.builder()
            .overrideConfiguration(b -> b.maxAttempts(100))
            .client(ec2)
            .build();

        StartInstancesRequest request = StartInstancesRequest.builder()
            .instanceIds(instanceId)
            .build();

        System.out.println("Use an Ec2Waiter to wait for the instance to run. This will take a few minutes.");
        ec2.startInstances(request);
        DescribeInstancesRequest instanceRequest = DescribeInstancesRequest.builder()
            .instanceIds(instanceId)
            .build();

        WaiterResponse<DescribeInstancesResponse> waiterResponse = ec2Waiter.waitUntilInstanceRunning(instanceRequest);
        waiterResponse.matched().response().ifPresent(System.out::println);
        System.out.println("Successfully started instance "+instanceId);
    }

import { StartInstancesCommand } from "@aws-sdk/client-ec2";

import { client } from "../libs/client.js";

export const main = async () => {
  const command = new StartInstancesCommand({
    // Use DescribeInstancesCommand to find InstanceIds
    InstanceIds: ["INSTANCE_ID"],
  });

  try {
    const { StartingInstances } = await client.send(command);
    const instanceIdList = StartingInstances.map(
      (instance) => ` • ${instance.InstanceId}`
    );
    console.log("Starting instances:");
    console.log(instanceIdList.join("\n"));
  } catch (err) {
    console.error(err);
  }
};

suspend fun startInstanceSc(instanceId: String) {
    val request = StartInstancesRequest {
        instanceIds = listOf(instanceId)
    }

    Ec2Client { region = "us-west-2" }.use { ec2 ->
        ec2.startInstances(request)
        println("Waiting until instance $instanceId starts. This will take a few minutes.")
        ec2.waitUntilInstanceRunning { // suspend call
            instanceIds = listOf(instanceId)
        }
        println("Successfully started instance $instanceId")
    }
}

class InstanceWrapper:
    """Encapsulates Amazon Elastic Compute Cloud (Amazon EC2) instance actions."""
    def __init__(self, ec2_resource, instance=None):
        """
        :param ec2_resource: A Boto3 Amazon EC2 resource. This high-level resource
                             is used to create additional high-level objects
                             that wrap low-level Amazon EC2 service actions.
        :param instance: A Boto3 Instance object. This is a high-level object that
                           wraps instance actions.
        """
        self.ec2_resource = ec2_resource
        self.instance = instance

    @classmethod
    def from_resource(cls):
        ec2_resource = boto3.resource('ec2')
        return cls(ec2_resource)

    def start(self):
        """
        Starts an instance and waits for it to be in a running state.

        :return: The response to the start request.
        """
        if self.instance is None:
            logger.info("No instance to start.")
            return

        try:
            response = self.instance.start()
            self.instance.wait_until_running()
        except ClientError as err:
            logger.error(
                "Couldn't start instance %s. Here's why: %s: %s", self.instance.id,
                err.response['Error']['Code'], err.response['Error']['Message'])
            raise
        else:
            return response

require "aws-sdk-ec2"

# Attempts to start an Amazon Elastic Compute Cloud (Amazon EC2) instance.
#
# Prerequisites:
#
# - The Amazon EC2 instance.
#
# @param ec2_client [Aws::EC2::Client] An initialized EC2 client.
# @param instance_id [String] The ID of the instance.
# @return [Boolean] true if the instance was started; otherwise, false.
# @example
#   exit 1 unless instance_started?(
#     Aws::EC2::Client.new(region: 'us-west-2'),
#     'i-123abc'
#   )
def instance_started?(ec2_client, instance_id)
  response = ec2_client.describe_instance_status(instance_ids: [instance_id])

  if response.instance_statuses.count.positive?
    state = response.instance_statuses[0].instance_state.name
    case state
    when "pending"
      puts "Error starting instance: the instance is pending. Try again later."
      return false
    when "running"
      puts "The instance is already running."
      return true
    when "terminated"
      puts "Error starting instance: " \
        "the instance is terminated, so you cannot start it."
      return false
    end
  end

  ec2_client.start_instances(instance_ids: [instance_id])
  ec2_client.wait_until(:instance_running, instance_ids: [instance_id])
  puts "Instance started."
  return true
rescue StandardError => e
  puts "Error starting instance: #{e.message}"
  return false
end

# Full example call:
def run_me
  instance_id = ""
  region = ""
  # Print usage information and then stop.
  if ARGV[0] == "--help" || ARGV[0] == "-h"
    puts "Usage:   ruby ec2-ruby-example-start-instance-i-123abc.rb " \
      "INSTANCE_ID REGION "
  # Replace us-west-2 with the AWS Region you're using for Amazon EC2.
    puts "Example: ruby ec2-ruby-example-start-instance-i-123abc.rb " \
      "i-123abc us-west-2"
    exit 1
  # If no values are specified at the command prompt, use these default values.
  # Replace us-west-2 with the AWS Region you're using for Amazon EC2.
  elsif ARGV.count.zero?
    instance_id = "i-123abc"
    region = "us-west-2"
  # Otherwise, use the values as specified at the command prompt.
  else
    instance_id = ARGV[0]
    region = ARGV[1]
  end

  ec2_client = Aws::EC2::Client.new(region: region)

  puts "Attempting to start instance '#{instance_id}' " \
    "(this might take a few minutes)..."
  unless instance_started?(ec2_client, instance_id)
    puts "Could not start instance."
  end
end

run_me if $PROGRAM_NAME == __FILE__

async fn start_instance(client: &Client, id: &str) -> Result<(), Error> {
    client.start_instances().instance_ids(id).send().await?;

    println!("Started instance.");

    Ok(())
}

    DATA lt_instance_ids TYPE /aws1/cl_ec2instidstringlist_w=>tt_instanceidstringlist.
    APPEND NEW /aws1/cl_ec2instidstringlist_w( iv_value = iv_instance_id ) TO lt_instance_ids.

    "Perform dry run"
    TRY.
        " DryRun is set to true. This checks for the required permissions to start the instance without actually making the request. "
        lo_ec2->startinstances(
          it_instanceids = lt_instance_ids
          iv_dryrun = abap_true
        ).
      CATCH /aws1/cx_rt_service_generic INTO DATA(lo_exception).
        " If the error code returned is `DryRunOperation`, then you have the required permissions to start this instance. "
        IF lo_exception->av_err_code = 'DryRunOperation'.
          MESSAGE 'Dry run to start instance completed.' TYPE 'I'.
          " DryRun is set to false to start instance. "
          oo_result = lo_ec2->startinstances(           " oo_result is returned for testing purposes. "
            it_instanceids = lt_instance_ids
            iv_dryrun = abap_false
          ).
          MESSAGE 'Successfully started the EC2 instance.' TYPE 'I'.
          " If the error code returned is `UnauthorizedOperation`, then you don't have the required permissions to start this instance. "
        ELSEIF lo_exception->av_err_code = 'UnauthorizedOperation'.
          MESSAGE 'Dry run to start instance failed. User does not have permissions to start the instance.' TYPE 'E'.
        ELSE.
          DATA(lv_error) = |"{ lo_exception->av_err_code }" - { lo_exception->av_err_msg }|.
          MESSAGE lv_error TYPE 'E'.
        ENDIF.
    ENDTRY.