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api_op_ListBrokers.go
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api_op_ListBrokers.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package mq
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/mq/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Returns a list of all brokers.
func (c *Client) ListBrokers(ctx context.Context, params *ListBrokersInput, optFns ...func(*Options)) (*ListBrokersOutput, error) {
if params == nil {
params = &ListBrokersInput{}
}
result, metadata, err := c.invokeOperation(ctx, "ListBrokers", params, optFns, c.addOperationListBrokersMiddlewares)
if err != nil {
return nil, err
}
out := result.(*ListBrokersOutput)
out.ResultMetadata = metadata
return out, nil
}
type ListBrokersInput struct {
// The maximum number of brokers that Amazon MQ can return per page (20 by
// default). This value must be an integer from 5 to 100.
MaxResults int32
// The token that specifies the next page of results Amazon MQ should return. To
// request the first page, leave nextToken empty.
NextToken *string
noSmithyDocumentSerde
}
type ListBrokersOutput struct {
// A list of information about all brokers.
BrokerSummaries []types.BrokerSummary
// The token that specifies the next page of results Amazon MQ should return. To
// request the first page, leave nextToken empty.
NextToken *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationListBrokersMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsRestjson1_serializeOpListBrokers{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsRestjson1_deserializeOpListBrokers{}, 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 = stack.Initialize.Add(newServiceMetadataMiddleware_opListBrokers(options.Region), middleware.Before); 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
}
// ListBrokersAPIClient is a client that implements the ListBrokers operation.
type ListBrokersAPIClient interface {
ListBrokers(context.Context, *ListBrokersInput, ...func(*Options)) (*ListBrokersOutput, error)
}
var _ ListBrokersAPIClient = (*Client)(nil)
// ListBrokersPaginatorOptions is the paginator options for ListBrokers
type ListBrokersPaginatorOptions struct {
// The maximum number of brokers that Amazon MQ can return per page (20 by
// default). This value must be an integer from 5 to 100.
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
}
// ListBrokersPaginator is a paginator for ListBrokers
type ListBrokersPaginator struct {
options ListBrokersPaginatorOptions
client ListBrokersAPIClient
params *ListBrokersInput
nextToken *string
firstPage bool
}
// NewListBrokersPaginator returns a new ListBrokersPaginator
func NewListBrokersPaginator(client ListBrokersAPIClient, params *ListBrokersInput, optFns ...func(*ListBrokersPaginatorOptions)) *ListBrokersPaginator {
if params == nil {
params = &ListBrokersInput{}
}
options := ListBrokersPaginatorOptions{}
if params.MaxResults != 0 {
options.Limit = params.MaxResults
}
for _, fn := range optFns {
fn(&options)
}
return &ListBrokersPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *ListBrokersPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next ListBrokers page.
func (p *ListBrokersPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListBrokersOutput, error) {
if !p.HasMorePages() {
return nil, fmt.Errorf("no more pages available")
}
params := *p.params
params.NextToken = p.nextToken
params.MaxResults = p.options.Limit
result, err := p.client.ListBrokers(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_opListBrokers(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "mq",
OperationName: "ListBrokers",
}
}