1// Code generated by smithy-go-codegen DO NOT EDIT. 2 3package managedblockchain 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/managedblockchain/types" 11 "github.com/aws/smithy-go/middleware" 12 smithyhttp "github.com/aws/smithy-go/transport/http" 13) 14 15// Returns information about the nodes within a network. Applies to Hyperledger 16// Fabric and Ethereum. 17func (c *Client) ListNodes(ctx context.Context, params *ListNodesInput, optFns ...func(*Options)) (*ListNodesOutput, error) { 18 if params == nil { 19 params = &ListNodesInput{} 20 } 21 22 result, metadata, err := c.invokeOperation(ctx, "ListNodes", params, optFns, addOperationListNodesMiddlewares) 23 if err != nil { 24 return nil, err 25 } 26 27 out := result.(*ListNodesOutput) 28 out.ResultMetadata = metadata 29 return out, nil 30} 31 32type ListNodesInput struct { 33 34 // The unique identifier of the network for which to list nodes. 35 // 36 // This member is required. 37 NetworkId *string 38 39 // The maximum number of nodes to list. 40 MaxResults *int32 41 42 // The unique identifier of the member who owns the nodes to list. Applies only to 43 // Hyperledger Fabric and is required for Hyperledger Fabric. 44 MemberId *string 45 46 // The pagination token that indicates the next set of results to retrieve. 47 NextToken *string 48 49 // An optional status specifier. If provided, only nodes currently in this status 50 // are listed. 51 Status types.NodeStatus 52} 53 54type ListNodesOutput struct { 55 56 // The pagination token that indicates the next set of results to retrieve. 57 NextToken *string 58 59 // An array of NodeSummary objects that contain configuration properties for each 60 // node. 61 Nodes []types.NodeSummary 62 63 // Metadata pertaining to the operation's result. 64 ResultMetadata middleware.Metadata 65} 66 67func addOperationListNodesMiddlewares(stack *middleware.Stack, options Options) (err error) { 68 err = stack.Serialize.Add(&awsRestjson1_serializeOpListNodes{}, middleware.After) 69 if err != nil { 70 return err 71 } 72 err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListNodes{}, middleware.After) 73 if err != nil { 74 return err 75 } 76 if err = addSetLoggerMiddleware(stack, options); err != nil { 77 return err 78 } 79 if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil { 80 return err 81 } 82 if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil { 83 return err 84 } 85 if err = addResolveEndpointMiddleware(stack, options); err != nil { 86 return err 87 } 88 if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil { 89 return err 90 } 91 if err = addRetryMiddlewares(stack, options); err != nil { 92 return err 93 } 94 if err = addHTTPSignerV4Middleware(stack, options); err != nil { 95 return err 96 } 97 if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil { 98 return err 99 } 100 if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil { 101 return err 102 } 103 if err = addClientUserAgent(stack); err != nil { 104 return err 105 } 106 if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil { 107 return err 108 } 109 if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil { 110 return err 111 } 112 if err = addOpListNodesValidationMiddleware(stack); err != nil { 113 return err 114 } 115 if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListNodes(options.Region), middleware.Before); err != nil { 116 return err 117 } 118 if err = addRequestIDRetrieverMiddleware(stack); err != nil { 119 return err 120 } 121 if err = addResponseErrorMiddleware(stack); err != nil { 122 return err 123 } 124 if err = addRequestResponseLogging(stack, options); err != nil { 125 return err 126 } 127 return nil 128} 129 130// ListNodesAPIClient is a client that implements the ListNodes operation. 131type ListNodesAPIClient interface { 132 ListNodes(context.Context, *ListNodesInput, ...func(*Options)) (*ListNodesOutput, error) 133} 134 135var _ ListNodesAPIClient = (*Client)(nil) 136 137// ListNodesPaginatorOptions is the paginator options for ListNodes 138type ListNodesPaginatorOptions struct { 139 // The maximum number of nodes to list. 140 Limit int32 141 142 // Set to true if pagination should stop if the service returns a pagination token 143 // that matches the most recent token provided to the service. 144 StopOnDuplicateToken bool 145} 146 147// ListNodesPaginator is a paginator for ListNodes 148type ListNodesPaginator struct { 149 options ListNodesPaginatorOptions 150 client ListNodesAPIClient 151 params *ListNodesInput 152 nextToken *string 153 firstPage bool 154} 155 156// NewListNodesPaginator returns a new ListNodesPaginator 157func NewListNodesPaginator(client ListNodesAPIClient, params *ListNodesInput, optFns ...func(*ListNodesPaginatorOptions)) *ListNodesPaginator { 158 if params == nil { 159 params = &ListNodesInput{} 160 } 161 162 options := ListNodesPaginatorOptions{} 163 if params.MaxResults != nil { 164 options.Limit = *params.MaxResults 165 } 166 167 for _, fn := range optFns { 168 fn(&options) 169 } 170 171 return &ListNodesPaginator{ 172 options: options, 173 client: client, 174 params: params, 175 firstPage: true, 176 } 177} 178 179// HasMorePages returns a boolean indicating whether more pages are available 180func (p *ListNodesPaginator) HasMorePages() bool { 181 return p.firstPage || p.nextToken != nil 182} 183 184// NextPage retrieves the next ListNodes page. 185func (p *ListNodesPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListNodesOutput, error) { 186 if !p.HasMorePages() { 187 return nil, fmt.Errorf("no more pages available") 188 } 189 190 params := *p.params 191 params.NextToken = p.nextToken 192 193 var limit *int32 194 if p.options.Limit > 0 { 195 limit = &p.options.Limit 196 } 197 params.MaxResults = limit 198 199 result, err := p.client.ListNodes(ctx, ¶ms, optFns...) 200 if err != nil { 201 return nil, err 202 } 203 p.firstPage = false 204 205 prevToken := p.nextToken 206 p.nextToken = result.NextToken 207 208 if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken { 209 p.nextToken = nil 210 } 211 212 return result, nil 213} 214 215func newServiceMetadataMiddleware_opListNodes(region string) *awsmiddleware.RegisterServiceMetadata { 216 return &awsmiddleware.RegisterServiceMetadata{ 217 Region: region, 218 ServiceID: ServiceID, 219 SigningName: "managedblockchain", 220 OperationName: "ListNodes", 221 } 222} 223