api_op_ListPermissions.go

// Code generated by smithy-go-codegen DO NOT EDIT.

package ram

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/aws/signer/v4"
	"github.com/aws/aws-sdk-go-v2/service/ram/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Retrieves a list of available RAM permissions that you can use for the supported
// resource types.
func (c *Client) ListPermissions(ctx context.Context, params *ListPermissionsInput, optFns ...func(*Options)) (*ListPermissionsOutput, error) {
	if params == nil {
		params = &ListPermissionsInput{}
	}

	result, metadata, err := c.invokeOperation(ctx, "ListPermissions", params, optFns, c.addOperationListPermissionsMiddlewares)
	if err != nil {
		return nil, err
	}

	out := result.(*ListPermissionsOutput)
	out.ResultMetadata = metadata
	return out, nil
}

type ListPermissionsInput struct {

	// Specifies the total number of results that you want included on each page of the
	// response. If you do not include this parameter, it defaults to a value that is
	// specific to the operation. If additional items exist beyond the number you
	// specify, the NextToken response element is returned with a value (not null).
	// Include the specified value as the NextToken request parameter in the next call
	// to the operation to get the next part of the results. Note that the service
	// might return fewer results than the maximum even when there are more results
	// available. You should check NextToken after every operation to ensure that you
	// receive all of the results.
	MaxResults *int32

	// Specifies that you want to receive the next page of results. Valid only if you
	// received a NextToken response in the previous request. If you did, it indicates
	// that more output is available. Set this parameter to the value provided by the
	// previous call's NextToken response to request the next page of results.
	NextToken *string

	// Specifies that you want to list permissions for only the specified resource
	// type. For example, to list only permissions that apply to EC2 subnets, specify
	// ec2:Subnet. You can use the ListResourceTypes operation to get the specific
	// string required.
	ResourceType *string

	noSmithyDocumentSerde
}

type ListPermissionsOutput struct {

	// If present, this value indicates that more output is available than is included
	// in the current response. Use this value in the NextToken request parameter in a
	// subsequent call to the operation to get the next part of the output. You should
	// repeat this until the NextToken response element comes back as null. This
	// indicates that this is the last page of results.
	NextToken *string

	// An array of objects with information about the permissions.
	Permissions []types.ResourceSharePermissionSummary

	// Metadata pertaining to the operation's result.
	ResultMetadata middleware.Metadata

	noSmithyDocumentSerde
}

func (c *Client) addOperationListPermissionsMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsRestjson1_serializeOpListPermissions{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListPermissions{}, middleware.After)
	if err != nil {
		return err
	}
	if err = addSetLoggerMiddleware(stack, options); err != nil {
		return err
	}
	if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil {
		return err
	}
	if err = addResolveEndpointMiddleware(stack, options); err != nil {
		return err
	}
	if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil {
		return err
	}
	if err = addRetryMiddlewares(stack, options); err != nil {
		return err
	}
	if err = addHTTPSignerV4Middleware(stack, options); err != nil {
		return err
	}
	if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
		return err
	}
	if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil {
		return err
	}
	if err = addClientUserAgent(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListPermissions(options.Region), middleware.Before); err != nil {
		return err
	}
	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
		return err
	}
	if err = addResponseErrorMiddleware(stack); err != nil {
		return err
	}
	if err = addRequestResponseLogging(stack, options); err != nil {
		return err
	}
	return nil
}

// ListPermissionsAPIClient is a client that implements the ListPermissions
// operation.
type ListPermissionsAPIClient interface {
	ListPermissions(context.Context, *ListPermissionsInput, ...func(*Options)) (*ListPermissionsOutput, error)
}

var _ ListPermissionsAPIClient = (*Client)(nil)

// ListPermissionsPaginatorOptions is the paginator options for ListPermissions
type ListPermissionsPaginatorOptions struct {
	// Specifies the total number of results that you want included on each page of the
	// response. If you do not include this parameter, it defaults to a value that is
	// specific to the operation. If additional items exist beyond the number you
	// specify, the NextToken response element is returned with a value (not null).
	// Include the specified value as the NextToken request parameter in the next call
	// to the operation to get the next part of the results. Note that the service
	// might return fewer results than the maximum even when there are more results
	// available. You should check NextToken after every operation to ensure that you
	// receive all of the results.
	Limit int32

	// Set to true if pagination should stop if the service returns a pagination token
	// that matches the most recent token provided to the service.
	StopOnDuplicateToken bool
}

// ListPermissionsPaginator is a paginator for ListPermissions
type ListPermissionsPaginator struct {
	options   ListPermissionsPaginatorOptions
	client    ListPermissionsAPIClient
	params    *ListPermissionsInput
	nextToken *string
	firstPage bool
}

// NewListPermissionsPaginator returns a new ListPermissionsPaginator
func NewListPermissionsPaginator(client ListPermissionsAPIClient, params *ListPermissionsInput, optFns ...func(*ListPermissionsPaginatorOptions)) *ListPermissionsPaginator {
	if params == nil {
		params = &ListPermissionsInput{}
	}

	options := ListPermissionsPaginatorOptions{}
	if params.MaxResults != nil {
		options.Limit = *params.MaxResults
	}

	for _, fn := range optFns {
		fn(&options)
	}

	return &ListPermissionsPaginator{
		options:   options,
		client:    client,
		params:    params,
		firstPage: true,
		nextToken: params.NextToken,
	}
}

// HasMorePages returns a boolean indicating whether more pages are available
func (p *ListPermissionsPaginator) HasMorePages() bool {
	return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}

// NextPage retrieves the next ListPermissions page.
func (p *ListPermissionsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListPermissionsOutput, error) {
	if !p.HasMorePages() {
		return nil, fmt.Errorf("no more pages available")
	}

	params := *p.params
	params.NextToken = p.nextToken

	var limit *int32
	if p.options.Limit > 0 {
		limit = &p.options.Limit
	}
	params.MaxResults = limit

	result, err := p.client.ListPermissions(ctx, &params, optFns...)
	if err != nil {
		return nil, err
	}
	p.firstPage = false

	prevToken := p.nextToken
	p.nextToken = result.NextToken

	if p.options.StopOnDuplicateToken &&
		prevToken != nil &&
		p.nextToken != nil &&
		*prevToken == *p.nextToken {
		p.nextToken = nil
	}

	return result, nil
}

func newServiceMetadataMiddleware_opListPermissions(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "ram",
		OperationName: "ListPermissions",
	}
}