1// Code generated by smithy-go-codegen DO NOT EDIT. 2 3package medialive 4 5import ( 6 "context" 7 "fmt" 8 awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware" 9 "github.com/aws/aws-sdk-go-v2/aws/signer/v4" 10 "github.com/aws/aws-sdk-go-v2/service/medialive/types" 11 "github.com/aws/smithy-go/middleware" 12 smithyhttp "github.com/aws/smithy-go/transport/http" 13) 14 15// Produces list of channels that have been created 16func (c *Client) ListChannels(ctx context.Context, params *ListChannelsInput, optFns ...func(*Options)) (*ListChannelsOutput, error) { 17 if params == nil { 18 params = &ListChannelsInput{} 19 } 20 21 result, metadata, err := c.invokeOperation(ctx, "ListChannels", params, optFns, addOperationListChannelsMiddlewares) 22 if err != nil { 23 return nil, err 24 } 25 26 out := result.(*ListChannelsOutput) 27 out.ResultMetadata = metadata 28 return out, nil 29} 30 31// Placeholder documentation for ListChannelsRequest 32type ListChannelsInput struct { 33 34 // Placeholder documentation for MaxResults 35 MaxResults int32 36 37 // Placeholder documentation for __string 38 NextToken *string 39} 40 41// Placeholder documentation for ListChannelsResponse 42type ListChannelsOutput struct { 43 44 // Placeholder documentation for __listOfChannelSummary 45 Channels []types.ChannelSummary 46 47 // Placeholder documentation for __string 48 NextToken *string 49 50 // Metadata pertaining to the operation's result. 51 ResultMetadata middleware.Metadata 52} 53 54func addOperationListChannelsMiddlewares(stack *middleware.Stack, options Options) (err error) { 55 err = stack.Serialize.Add(&awsRestjson1_serializeOpListChannels{}, middleware.After) 56 if err != nil { 57 return err 58 } 59 err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListChannels{}, middleware.After) 60 if err != nil { 61 return err 62 } 63 if err = addSetLoggerMiddleware(stack, options); err != nil { 64 return err 65 } 66 if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil { 67 return err 68 } 69 if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil { 70 return err 71 } 72 if err = addResolveEndpointMiddleware(stack, options); err != nil { 73 return err 74 } 75 if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil { 76 return err 77 } 78 if err = addRetryMiddlewares(stack, options); err != nil { 79 return err 80 } 81 if err = addHTTPSignerV4Middleware(stack, options); err != nil { 82 return err 83 } 84 if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil { 85 return err 86 } 87 if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil { 88 return err 89 } 90 if err = addClientUserAgent(stack); err != nil { 91 return err 92 } 93 if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil { 94 return err 95 } 96 if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil { 97 return err 98 } 99 if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListChannels(options.Region), middleware.Before); err != nil { 100 return err 101 } 102 if err = addRequestIDRetrieverMiddleware(stack); err != nil { 103 return err 104 } 105 if err = addResponseErrorMiddleware(stack); err != nil { 106 return err 107 } 108 if err = addRequestResponseLogging(stack, options); err != nil { 109 return err 110 } 111 return nil 112} 113 114// ListChannelsAPIClient is a client that implements the ListChannels operation. 115type ListChannelsAPIClient interface { 116 ListChannels(context.Context, *ListChannelsInput, ...func(*Options)) (*ListChannelsOutput, error) 117} 118 119var _ ListChannelsAPIClient = (*Client)(nil) 120 121// ListChannelsPaginatorOptions is the paginator options for ListChannels 122type ListChannelsPaginatorOptions struct { 123 // Placeholder documentation for MaxResults 124 Limit int32 125 126 // Set to true if pagination should stop if the service returns a pagination token 127 // that matches the most recent token provided to the service. 128 StopOnDuplicateToken bool 129} 130 131// ListChannelsPaginator is a paginator for ListChannels 132type ListChannelsPaginator struct { 133 options ListChannelsPaginatorOptions 134 client ListChannelsAPIClient 135 params *ListChannelsInput 136 nextToken *string 137 firstPage bool 138} 139 140// NewListChannelsPaginator returns a new ListChannelsPaginator 141func NewListChannelsPaginator(client ListChannelsAPIClient, params *ListChannelsInput, optFns ...func(*ListChannelsPaginatorOptions)) *ListChannelsPaginator { 142 if params == nil { 143 params = &ListChannelsInput{} 144 } 145 146 options := ListChannelsPaginatorOptions{} 147 if params.MaxResults != 0 { 148 options.Limit = params.MaxResults 149 } 150 151 for _, fn := range optFns { 152 fn(&options) 153 } 154 155 return &ListChannelsPaginator{ 156 options: options, 157 client: client, 158 params: params, 159 firstPage: true, 160 } 161} 162 163// HasMorePages returns a boolean indicating whether more pages are available 164func (p *ListChannelsPaginator) HasMorePages() bool { 165 return p.firstPage || p.nextToken != nil 166} 167 168// NextPage retrieves the next ListChannels page. 169func (p *ListChannelsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListChannelsOutput, error) { 170 if !p.HasMorePages() { 171 return nil, fmt.Errorf("no more pages available") 172 } 173 174 params := *p.params 175 params.NextToken = p.nextToken 176 177 params.MaxResults = p.options.Limit 178 179 result, err := p.client.ListChannels(ctx, ¶ms, optFns...) 180 if err != nil { 181 return nil, err 182 } 183 p.firstPage = false 184 185 prevToken := p.nextToken 186 p.nextToken = result.NextToken 187 188 if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken { 189 p.nextToken = nil 190 } 191 192 return result, nil 193} 194 195func newServiceMetadataMiddleware_opListChannels(region string) *awsmiddleware.RegisterServiceMetadata { 196 return &awsmiddleware.RegisterServiceMetadata{ 197 Region: region, 198 ServiceID: ServiceID, 199 SigningName: "medialive", 200 OperationName: "ListChannels", 201 } 202} 203