Use ListRolePolicies with an Amazon SDK or command line tool

    /// <summary>
    /// List IAM role policies.
    /// </summary>
    /// <param name="roleName">The IAM role for which to list IAM policies.</param>
    /// <returns>A list of IAM policy names.</returns>
    public async Task<List<string>> ListRolePoliciesAsync(string roleName)
    {
        var listRolePoliciesPaginator = _IAMService.Paginators.ListRolePolicies(new ListRolePoliciesRequest { RoleName = roleName });
        var policyNames = new List<string>();

        await foreach (var response in listRolePoliciesPaginator.Responses)
        {
            policyNames.AddRange(response.PolicyNames);
        }

        return policyNames;
    }

To list the policies attached to an IAM role

The following list-role-policies command lists the names of the permissions policies for the specified IAM role.

aws iam list-role-policies \
    --role-name Test-Role

Output:

{
    "PolicyNames": [
        "ExamplePolicy"
    ]
}

To see the trust policy attached to a role, use the get-role command. To see the details of a permissions policy, use the get-role-policy command.

For more information, see Creating IAM roles in the Amazon IAM User Guide.

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



// ListRolePolicies lists the inline policies for a role.
func (wrapper RoleWrapper) ListRolePolicies(roleName string) ([]string, error) {
	var policies []string
	result, err := wrapper.IamClient.ListRolePolicies(context.TODO(), &iam.ListRolePoliciesInput{
		RoleName: aws.String(roleName),
	})
	if err != nil {
		log.Printf("Couldn't list policies for role %v. Here's why: %v\n", roleName, err)
	} else {
		policies = result.PolicyNames
	}
	return policies, err
}

List the policies.

import { ListRolePoliciesCommand, 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.
 *
 * @param {string} roleName
 */
export async function* listRolePolicies(roleName) {
  const command = new ListRolePoliciesCommand({
    RoleName: roleName,
    MaxItems: 10,
  });

  let response = await client.send(command);

  while (response.PolicyNames?.length) {
    for (const policyName of response.PolicyNames) {
      yield policyName;
    }

    if (response.IsTruncated) {
      response = await client.send(
        new ListRolePoliciesCommand({
          RoleName: roleName,
          MaxItems: 10,
          Marker: response.Marker,
        }),
      );
    } else {
      break;
    }
  }
}

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

    public function listRolePolicies($roleName, $marker = "", $maxItems = 0)
    {
        $listRolePoliciesArguments = ['RoleName' => $roleName];
        if ($marker) {
            $listRolePoliciesArguments['Marker'] = $marker;
        }
        if ($maxItems) {
            $listRolePoliciesArguments['MaxItems'] = $maxItems;
        }
        return $this->customWaiter(function () use ($listRolePoliciesArguments) {
            return $this->iamClient->listRolePolicies($listRolePoliciesArguments);
        });
    }

Example 1: This example returns the list of names of inline policies that are embedded in the IAM role lamda_exec_role. To see the details of an inline policy, use the command Get-IAMRolePolicy.

Get-IAMRolePolicyList -RoleName lambda_exec_role

Output:

oneClick_lambda_exec_role_policy

def list_policies(role_name):
    """
    Lists inline policies for a role.

    :param role_name: The name of the role to query.
    """
    try:
        role = iam.Role(role_name)
        for policy in role.policies.all():
            logger.info("Got inline policy %s.", policy.name)
    except ClientError:
        logger.exception("Couldn't list inline policies for %s.", role_name)
        raise

  # 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

pub async fn list_role_policies(
    client: &iamClient,
    role_name: &str,
    marker: Option<String>,
    max_items: Option<i32>,
) -> Result<ListRolePoliciesOutput, SdkError<ListRolePoliciesError>> {
    let response = client
        .list_role_policies()
        .role_name(role_name)
        .set_marker(marker)
        .set_max_items(max_items)
        .send()
        .await?;

    Ok(response)
}

    public func listRolePolicies(role: String) async throws -> [String] {
        var policyList: [String] = []
        var marker: String? = nil
        var isTruncated: Bool
        
        repeat {
            let input = ListRolePoliciesInput(
                marker: marker,
                roleName: role
            )
            let output = try await client.listRolePolicies(input: input)
            
            guard let policies = output.policyNames else {
                return policyList
            }

            for policy in policies {
                policyList.append(policy)
            }
            marker = output.marker
            isTruncated = output.isTruncated
        } while isTruncated == true
        return policyList
    }