1// Code generated by smithy-go-codegen DO NOT EDIT. 2 3package appconfig 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/appconfig/types" 11 "github.com/aws/smithy-go/middleware" 12 smithyhttp "github.com/aws/smithy-go/transport/http" 13) 14 15// List the environments for an application. 16func (c *Client) ListEnvironments(ctx context.Context, params *ListEnvironmentsInput, optFns ...func(*Options)) (*ListEnvironmentsOutput, error) { 17 if params == nil { 18 params = &ListEnvironmentsInput{} 19 } 20 21 result, metadata, err := c.invokeOperation(ctx, "ListEnvironments", params, optFns, c.addOperationListEnvironmentsMiddlewares) 22 if err != nil { 23 return nil, err 24 } 25 26 out := result.(*ListEnvironmentsOutput) 27 out.ResultMetadata = metadata 28 return out, nil 29} 30 31type ListEnvironmentsInput struct { 32 33 // The application ID. 34 // 35 // This member is required. 36 ApplicationId *string 37 38 // The maximum number of items to return for this call. The call also returns a 39 // token that you can specify in a subsequent call to get the next set of results. 40 MaxResults int32 41 42 // A token to start the list. Use this token to get the next set of results. 43 NextToken *string 44 45 noSmithyDocumentSerde 46} 47 48type ListEnvironmentsOutput struct { 49 50 // The elements from this collection. 51 Items []types.Environment 52 53 // The token for the next set of items to return. Use this token to get the next 54 // set of results. 55 NextToken *string 56 57 // Metadata pertaining to the operation's result. 58 ResultMetadata middleware.Metadata 59 60 noSmithyDocumentSerde 61} 62 63func (c *Client) addOperationListEnvironmentsMiddlewares(stack *middleware.Stack, options Options) (err error) { 64 err = stack.Serialize.Add(&awsRestjson1_serializeOpListEnvironments{}, middleware.After) 65 if err != nil { 66 return err 67 } 68 err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListEnvironments{}, middleware.After) 69 if err != nil { 70 return err 71 } 72 if err = addSetLoggerMiddleware(stack, options); err != nil { 73 return err 74 } 75 if err = awsmiddleware.AddClientRequestIDMiddleware(stack); err != nil { 76 return err 77 } 78 if err = smithyhttp.AddComputeContentLengthMiddleware(stack); err != nil { 79 return err 80 } 81 if err = addResolveEndpointMiddleware(stack, options); err != nil { 82 return err 83 } 84 if err = v4.AddComputePayloadSHA256Middleware(stack); err != nil { 85 return err 86 } 87 if err = addRetryMiddlewares(stack, options); err != nil { 88 return err 89 } 90 if err = addHTTPSignerV4Middleware(stack, options); err != nil { 91 return err 92 } 93 if err = awsmiddleware.AddRawResponseToMetadata(stack); err != nil { 94 return err 95 } 96 if err = awsmiddleware.AddRecordResponseTiming(stack); err != nil { 97 return err 98 } 99 if err = addClientUserAgent(stack); err != nil { 100 return err 101 } 102 if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil { 103 return err 104 } 105 if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil { 106 return err 107 } 108 if err = addOpListEnvironmentsValidationMiddleware(stack); err != nil { 109 return err 110 } 111 if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListEnvironments(options.Region), middleware.Before); err != nil { 112 return err 113 } 114 if err = addRequestIDRetrieverMiddleware(stack); err != nil { 115 return err 116 } 117 if err = addResponseErrorMiddleware(stack); err != nil { 118 return err 119 } 120 if err = addRequestResponseLogging(stack, options); err != nil { 121 return err 122 } 123 return nil 124} 125 126// ListEnvironmentsAPIClient is a client that implements the ListEnvironments 127// operation. 128type ListEnvironmentsAPIClient interface { 129 ListEnvironments(context.Context, *ListEnvironmentsInput, ...func(*Options)) (*ListEnvironmentsOutput, error) 130} 131 132var _ ListEnvironmentsAPIClient = (*Client)(nil) 133 134// ListEnvironmentsPaginatorOptions is the paginator options for ListEnvironments 135type ListEnvironmentsPaginatorOptions struct { 136 // The maximum number of items to return for this call. The call also returns a 137 // token that you can specify in a subsequent call to get the next set of results. 138 Limit int32 139 140 // Set to true if pagination should stop if the service returns a pagination token 141 // that matches the most recent token provided to the service. 142 StopOnDuplicateToken bool 143} 144 145// ListEnvironmentsPaginator is a paginator for ListEnvironments 146type ListEnvironmentsPaginator struct { 147 options ListEnvironmentsPaginatorOptions 148 client ListEnvironmentsAPIClient 149 params *ListEnvironmentsInput 150 nextToken *string 151 firstPage bool 152} 153 154// NewListEnvironmentsPaginator returns a new ListEnvironmentsPaginator 155func NewListEnvironmentsPaginator(client ListEnvironmentsAPIClient, params *ListEnvironmentsInput, optFns ...func(*ListEnvironmentsPaginatorOptions)) *ListEnvironmentsPaginator { 156 if params == nil { 157 params = &ListEnvironmentsInput{} 158 } 159 160 options := ListEnvironmentsPaginatorOptions{} 161 if params.MaxResults != 0 { 162 options.Limit = params.MaxResults 163 } 164 165 for _, fn := range optFns { 166 fn(&options) 167 } 168 169 return &ListEnvironmentsPaginator{ 170 options: options, 171 client: client, 172 params: params, 173 firstPage: true, 174 } 175} 176 177// HasMorePages returns a boolean indicating whether more pages are available 178func (p *ListEnvironmentsPaginator) HasMorePages() bool { 179 return p.firstPage || p.nextToken != nil 180} 181 182// NextPage retrieves the next ListEnvironments page. 183func (p *ListEnvironmentsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListEnvironmentsOutput, error) { 184 if !p.HasMorePages() { 185 return nil, fmt.Errorf("no more pages available") 186 } 187 188 params := *p.params 189 params.NextToken = p.nextToken 190 191 params.MaxResults = p.options.Limit 192 193 result, err := p.client.ListEnvironments(ctx, ¶ms, optFns...) 194 if err != nil { 195 return nil, err 196 } 197 p.firstPage = false 198 199 prevToken := p.nextToken 200 p.nextToken = result.NextToken 201 202 if p.options.StopOnDuplicateToken && prevToken != nil && p.nextToken != nil && *prevToken == *p.nextToken { 203 p.nextToken = nil 204 } 205 206 return result, nil 207} 208 209func newServiceMetadataMiddleware_opListEnvironments(region string) *awsmiddleware.RegisterServiceMetadata { 210 return &awsmiddleware.RegisterServiceMetadata{ 211 Region: region, 212 ServiceID: ServiceID, 213 SigningName: "appconfig", 214 OperationName: "ListEnvironments", 215 } 216} 217