Use ListPolicies with an Amazon SDK or CLI

    /// <summary>
    /// List IAM policies.
    /// </summary>
    /// <returns>A list of the IAM policies.</returns>
    public async Task<List<ManagedPolicy>> ListPoliciesAsync()
    {
        var listPoliciesPaginator = _IAMService.Paginators.ListPolicies(new ListPoliciesRequest());
        var policies = new List<ManagedPolicy>();

        await foreach (var response in listPoliciesPaginator.Responses)
        {
            policies.AddRange(response.Policies);
        }

        return policies;
    }

bool AwsDoc::IAM::listPolicies(const Aws::Client::ClientConfiguration &clientConfig) {
    const Aws::String DATE_FORMAT("%Y-%m-%d");
    Aws::IAM::IAMClient iam(clientConfig);
    Aws::IAM::Model::ListPoliciesRequest request;

    bool done = false;
    bool header = false;
    while (!done) {
        auto outcome = iam.ListPolicies(request);
        if (!outcome.IsSuccess()) {
            std::cerr << "Failed to list iam policies: " <<
                      outcome.GetError().GetMessage() << std::endl;
            return false;
        }

        if (!header) {
            std::cout << std::left << std::setw(55) << "Name" <<
                      std::setw(30) << "ID" << std::setw(80) << "Arn" <<
                      std::setw(64) << "Description" << std::setw(12) <<
                      "CreateDate" << std::endl;
            header = true;
        }

        const auto &policies = outcome.GetResult().GetPolicies();
        for (const auto &policy: policies) {
            std::cout << std::left << std::setw(55) <<
                      policy.GetPolicyName() << std::setw(30) <<
                      policy.GetPolicyId() << std::setw(80) << policy.GetArn() <<
                      std::setw(64) << policy.GetDescription() << std::setw(12) <<
                      policy.GetCreateDate().ToGmtString(DATE_FORMAT.c_str()) <<
                      std::endl;
        }

        if (outcome.GetResult().GetIsTruncated()) {
            request.SetMarker(outcome.GetResult().GetMarker());
        }
        else {
            done = true;
        }
    }

    return true;
}

To list managed policies that are available to your Amazon account

This example returns a collection of the first two managed policies available in the current Amazon account.

aws iam list-policies \
    --max-items 3

Output:

{
    "Policies": [
        {
            "PolicyName": "AWSCloudTrailAccessPolicy",
            "PolicyId": "ANPAXQE2B5PJ7YEXAMPLE",
            "Arn": "arn:aws:iam::123456789012:policy/AWSCloudTrailAccessPolicy",
            "Path": "/",
            "DefaultVersionId": "v1",
            "AttachmentCount": 0,
            "PermissionsBoundaryUsageCount": 0,
            "IsAttachable": true,
            "CreateDate": "2019-09-04T17:43:42+00:00",
            "UpdateDate": "2019-09-04T17:43:42+00:00"
        },
        {
            "PolicyName": "AdministratorAccess",
            "PolicyId": "ANPAIWMBCKSKIEE64ZLYK",
            "Arn": "arn:aws:iam::aws:policy/AdministratorAccess",
            "Path": "/",
            "DefaultVersionId": "v1",
            "AttachmentCount": 6,
            "PermissionsBoundaryUsageCount": 0,
            "IsAttachable": true,
            "CreateDate": "2015-02-06T18:39:46+00:00",
            "UpdateDate": "2015-02-06T18:39:46+00:00"
        },
        {
            "PolicyName": "PowerUserAccess",
            "PolicyId": "ANPAJYRXTHIB4FOVS3ZXS",
            "Arn": "arn:aws:iam::aws:policy/PowerUserAccess",
            "Path": "/",
            "DefaultVersionId": "v5",
            "AttachmentCount": 1,
            "PermissionsBoundaryUsageCount": 0,
            "IsAttachable": true,
            "CreateDate": "2015-02-06T18:39:47+00:00",
            "UpdateDate": "2023-07-06T22:04:00+00:00"
        }
    ],
    "NextToken": "EXAMPLErZXIiOiBudWxsLCAiYm90b190cnVuY2F0ZV9hbW91bnQiOiA4fQ=="
}

For more information, see Policies and permissions in IAM in the Amazon IAM User Guide.

import (
	"context"
	"encoding/json"
	"log"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/service/iam"
	"github.com/aws/aws-sdk-go-v2/service/iam/types"
)

// PolicyWrapper encapsulates AWS Identity and Access Management (IAM) policy actions
// used in the examples.
// It contains an IAM service client that is used to perform policy actions.
type PolicyWrapper struct {
	IamClient *iam.Client
}



// ListPolicies gets up to maxPolicies policies.
func (wrapper PolicyWrapper) ListPolicies(ctx context.Context, maxPolicies int32) ([]types.Policy, error) {
	var policies []types.Policy
	result, err := wrapper.IamClient.ListPolicies(ctx, &iam.ListPoliciesInput{
		MaxItems: aws.Int32(maxPolicies),
	})
	if err != nil {
		log.Printf("Couldn't list policies. Here's why: %v\n", err)
	} else {
		policies = result.Policies
	}
	return policies, err
}

List the policies.

import { ListPoliciesCommand, IAMClient } from "@aws-sdk/client-iam";

const client = new IAMClient({});

/**
 * A generator function that handles paginated results.
 * The AWS SDK for JavaScript (v3) provides {@link https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/index.html#paginators | paginator} functions to simplify this.
 *
 */
export async function* listPolicies() {
  const command = new ListPoliciesCommand({
    MaxItems: 10,
    OnlyAttached: false,
    // List only the customer managed policies in your Amazon Web Services account.
    Scope: "Local",
  });

  let response = await client.send(command);

  while (response.Policies?.length) {
    for (const policy of response.Policies) {
      yield policy;
    }

    if (response.IsTruncated) {
      response = await client.send(
        new ListPoliciesCommand({
          Marker: response.Marker,
          MaxItems: 10,
          OnlyAttached: false,
          Scope: "Local",
        }),
      );
    } else {
      break;
    }
  }
}

$uuid = uniqid();
$service = new IAMService();

    public function listPolicies($pathPrefix = "", $marker = "", $maxItems = 0)
    {
        $listPoliciesArguments = [];
        if ($pathPrefix) {
            $listPoliciesArguments["PathPrefix"] = $pathPrefix;
        }
        if ($marker) {
            $listPoliciesArguments["Marker"] = $marker;
        }
        if ($maxItems) {
            $listPoliciesArguments["MaxItems"] = $maxItems;
        }

        return $this->iamClient->listPolicies($listPoliciesArguments);
    }

Example 1: This example returns a collection of the first three managed policies available in the current Amazon account. Because -scope is not specified, it defaults to all and includes both Amazon managed and customer managed policies.

Get-IAMPolicyList -MaxItem 3

Output:

Arn              : arn:aws:iam::aws:policy/AWSDirectConnectReadOnlyAccess
AttachmentCount  : 0
CreateDate       : 2/6/2015 10:40:08 AM
DefaultVersionId : v1
Description      : 
IsAttachable     : True
Path             : /
PolicyId         : Z27SI6FQMGNQ2EXAMPLE1
PolicyName       : AWSDirectConnectReadOnlyAccess
UpdateDate       : 2/6/2015 10:40:08 AM
      
Arn              : arn:aws:iam::aws:policy/AmazonGlacierReadOnlyAccess
AttachmentCount  : 0
CreateDate       : 2/6/2015 10:40:27 AM
DefaultVersionId : v1
Description      : 
IsAttachable     : True
Path             : /
PolicyId         : NJKMU274MET4EEXAMPLE2
PolicyName       : AmazonGlacierReadOnlyAccess
UpdateDate       : 2/6/2015 10:40:27 AM
      
Arn              : arn:aws:iam::aws:policy/AWSMarketplaceFullAccess
AttachmentCount  : 0
CreateDate       : 2/11/2015 9:21:45 AM
DefaultVersionId : v1
Description      : 
IsAttachable     : True
Path             : /
PolicyId         : 5ULJSO2FYVPYGEXAMPLE3
PolicyName       : AWSMarketplaceFullAccess
UpdateDate       : 2/11/2015 9:21:45 AM

Example 2: This example returns a collection of the first two customer managed policies available in current Amazon account. It uses -Scope local to limit the output to only customer managed policies.

Get-IAMPolicyList -Scope local -MaxItem 2

Output:

Arn              : arn:aws:iam::123456789012:policy/MyLocalPolicy
AttachmentCount  : 0
CreateDate       : 2/12/2015 9:39:09 AM
DefaultVersionId : v2
Description      : 
IsAttachable     : True
Path             : /
PolicyId         : SQVCBLC4VAOUCEXAMPLE4
PolicyName       : MyLocalPolicy
UpdateDate       : 2/12/2015 9:39:53 AM

Arn              : arn:aws:iam::123456789012:policy/policyforec2instancerole
AttachmentCount  : 1
CreateDate       : 2/17/2015 2:51:38 PM
DefaultVersionId : v11
Description      : 
IsAttachable     : True
Path             : /
PolicyId         : X5JPBLJH2Z2SOEXAMPLE5
PolicyName       : policyforec2instancerole
UpdateDate       : 2/18/2015 8:52:31 AM

def list_policies(scope):
    """
    Lists the policies in the current account.

    :param scope: Limits the kinds of policies that are returned. For example,
                  'Local' specifies that only locally managed policies are returned.
    :return: The list of policies.
    """
    try:
        policies = list(iam.policies.filter(Scope=scope))
        logger.info("Got %s policies in scope '%s'.", len(policies), scope)
    except ClientError:
        logger.exception("Couldn't get policies for scope '%s'.", scope)
        raise
    else:
        return policies

This example module lists, creates, attaches, and detaches role policies.

# Manages policies in AWS Identity and Access Management (IAM)
class RolePolicyManager
  # Initialize with an AWS IAM client
  #
  # @param iam_client [Aws::IAM::Client] An initialized IAM client
  def initialize(iam_client, logger: Logger.new($stdout))
    @iam_client = iam_client
    @logger = logger
    @logger.progname = 'PolicyManager'
  end

  # Creates a policy
  #
  # @param policy_name [String] The name of the policy
  # @param policy_document [Hash] The policy document
  # @return [String] The policy ARN if successful, otherwise nil
  def create_policy(policy_name, policy_document)
    response = @iam_client.create_policy(
      policy_name: policy_name,
      policy_document: policy_document.to_json
    )
    response.policy.arn
  rescue Aws::IAM::Errors::ServiceError => e
    @logger.error("Error creating policy: #{e.message}")
    nil
  end

  # Fetches an IAM policy by its ARN
  # @param policy_arn [String] the ARN of the IAM policy to retrieve
  # @return [Aws::IAM::Types::GetPolicyResponse] the policy object if found
  def get_policy(policy_arn)
    response = @iam_client.get_policy(policy_arn: policy_arn)
    policy = response.policy
    @logger.info("Got policy '#{policy.policy_name}'. Its ID is: #{policy.policy_id}.")
    policy
  rescue Aws::IAM::Errors::NoSuchEntity
    @logger.error("Couldn't get policy '#{policy_arn}'. The policy does not exist.")
    raise
  rescue Aws::IAM::Errors::ServiceError => e
    @logger.error("Couldn't get policy '#{policy_arn}'. Here's why: #{e.code}: #{e.message}")
    raise
  end

  # Attaches a policy to a role
  #
  # @param role_name [String] The name of the role
  # @param policy_arn [String] The policy ARN
  # @return [Boolean] true if successful, false otherwise
  def attach_policy_to_role(role_name, policy_arn)
    @iam_client.attach_role_policy(
      role_name: role_name,
      policy_arn: policy_arn
    )
    true
  rescue Aws::IAM::Errors::ServiceError => e
    @logger.error("Error attaching policy to role: #{e.message}")
    false
  end

  # Lists policy ARNs attached to a role
  #
  # @param role_name [String] The name of the role
  # @return [Array<String>] List of policy ARNs
  def list_attached_policy_arns(role_name)
    response = @iam_client.list_attached_role_policies(role_name: role_name)
    response.attached_policies.map(&:policy_arn)
  rescue Aws::IAM::Errors::ServiceError => e
    @logger.error("Error listing policies attached to role: #{e.message}")
    []
  end

  # Detaches a policy from a role
  #
  # @param role_name [String] The name of the role
  # @param policy_arn [String] The policy ARN
  # @return [Boolean] true if successful, false otherwise
  def detach_policy_from_role(role_name, policy_arn)
    @iam_client.detach_role_policy(
      role_name: role_name,
      policy_arn: policy_arn
    )
    true
  rescue Aws::IAM::Errors::ServiceError => e
    @logger.error("Error detaching policy from role: #{e.message}")
    false
  end
end

pub async fn list_policies(
    client: iamClient,
    path_prefix: String,
) -> Result<Vec<String>, SdkError<ListPoliciesError>> {
    let list_policies = client
        .list_policies()
        .path_prefix(path_prefix)
        .scope(PolicyScopeType::Local)
        .into_paginator()
        .items()
        .send()
        .try_collect()
        .await?;

    let policy_names = list_policies
        .into_iter()
        .map(|p| {
            let name = p
                .policy_name
                .unwrap_or_else(|| "Missing Policy Name".to_string());
            println!("{}", name);
            name
        })
        .collect();

    Ok(policy_names)
}

import AWSIAM
import AWSS3


    public func listPolicies() async throws -> [MyPolicyRecord] {
        var policyList: [MyPolicyRecord] = []

        // Use "Paginated" to get all the policies.
        // This lets the SDK handle the 'isTruncated' in "ListPoliciesOutput".
        let input = ListPoliciesInput()
        let output = client.listPoliciesPaginated(input: input)

        do {
            for try await page in output {
                guard let policies = page.policies else {
                    print("Error: no policies returned.")
                    continue
                }

                for policy in policies {
                    guard let name = policy.policyName,
                          let id = policy.policyId,
                          let arn = policy.arn
                    else {
                        throw ServiceHandlerError.noSuchPolicy
                    }
                    policyList.append(MyPolicyRecord(name: name, id: id, arn: arn))
                }
            }
        } catch {
            print("ERROR: listPolicies:", dump(error))
            throw error
        }

        return policyList
    }