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, &params, 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