/
api_op_ListChannels.go
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/
api_op_ListChannels.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package mediapackagev2
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/mediapackagev2/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Retrieves all channels in a specific channel group that are configured in AWS
// Elemental MediaPackage, including the origin endpoints that are associated with
// it.
func (c *Client) ListChannels(ctx context.Context, params *ListChannelsInput, optFns ...func(*Options)) (*ListChannelsOutput, error) {
if params == nil {
params = &ListChannelsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "ListChannels", params, optFns, c.addOperationListChannelsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*ListChannelsOutput)
out.ResultMetadata = metadata
return out, nil
}
type ListChannelsInput struct {
// The name that describes the channel group. The name is the primary identifier
// for the channel group, and must be unique for your account in the AWS Region.
//
// This member is required.
ChannelGroupName *string
// The maximum number of results to return in the response.
MaxResults *int32
// The pagination token from the GET list request. Use the token to fetch the next
// page of results.
NextToken *string
noSmithyDocumentSerde
}
type ListChannelsOutput struct {
// The objects being returned.
Items []types.ChannelListConfiguration
// The pagination token from the GET list request.
NextToken *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationListChannelsMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsRestjson1_serializeOpListChannels{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListChannels{}, 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 = addOpListChannelsValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListChannels(options.Region), middleware.Before); err != nil {
return err
}
if err = awsmiddleware.AddRecursionDetection(stack); 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
}
// ListChannelsAPIClient is a client that implements the ListChannels operation.
type ListChannelsAPIClient interface {
ListChannels(context.Context, *ListChannelsInput, ...func(*Options)) (*ListChannelsOutput, error)
}
var _ ListChannelsAPIClient = (*Client)(nil)
// ListChannelsPaginatorOptions is the paginator options for ListChannels
type ListChannelsPaginatorOptions struct {
// The maximum number of results to return in the response.
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
}
// ListChannelsPaginator is a paginator for ListChannels
type ListChannelsPaginator struct {
options ListChannelsPaginatorOptions
client ListChannelsAPIClient
params *ListChannelsInput
nextToken *string
firstPage bool
}
// NewListChannelsPaginator returns a new ListChannelsPaginator
func NewListChannelsPaginator(client ListChannelsAPIClient, params *ListChannelsInput, optFns ...func(*ListChannelsPaginatorOptions)) *ListChannelsPaginator {
if params == nil {
params = &ListChannelsInput{}
}
options := ListChannelsPaginatorOptions{}
if params.MaxResults != nil {
options.Limit = *params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &ListChannelsPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *ListChannelsPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next ListChannels page.
func (p *ListChannelsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListChannelsOutput, 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.ListChannels(ctx, ¶ms, 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_opListChannels(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "mediapackagev2",
OperationName: "ListChannels",
}
}