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api_op_ListMetrics.go
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api_op_ListMetrics.go
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// Code generated by smithy-go-codegen DO NOT EDIT.
package cloudwatch
import (
"context"
"fmt"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
"github.com/aws/aws-sdk-go-v2/service/cloudwatch/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// List the specified metrics. You can use the returned metrics with [GetMetricData] or [GetMetricStatistics] to get
// statistical data.
//
// Up to 500 results are returned for any one call. To retrieve additional
// results, use the returned token with subsequent calls.
//
// After you create a metric, allow up to 15 minutes for the metric to appear. To
// see metric statistics sooner, use [GetMetricData]or [GetMetricStatistics].
//
// If you are using CloudWatch cross-account observability, you can use this
// operation in a monitoring account and view metrics from the linked source
// accounts. For more information, see [CloudWatch cross-account observability].
//
// ListMetrics doesn't return information about metrics if those metrics haven't
// reported data in the past two weeks. To retrieve those metrics, use [GetMetricData]or [GetMetricStatistics].
//
// [GetMetricData]: https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_GetMetricData.html
// [GetMetricStatistics]: https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_GetMetricStatistics.html
// [CloudWatch cross-account observability]: https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch-Unified-Cross-Account.html
func (c *Client) ListMetrics(ctx context.Context, params *ListMetricsInput, optFns ...func(*Options)) (*ListMetricsOutput, error) {
if params == nil {
params = &ListMetricsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "ListMetrics", params, optFns, c.addOperationListMetricsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*ListMetricsOutput)
out.ResultMetadata = metadata
return out, nil
}
type ListMetricsInput struct {
// The dimensions to filter against. Only the dimensions that match exactly will
// be returned.
Dimensions []types.DimensionFilter
// If you are using this operation in a monitoring account, specify true to
// include metrics from source accounts in the returned data.
//
// The default is false .
IncludeLinkedAccounts *bool
// The name of the metric to filter against. Only the metrics with names that
// match exactly will be returned.
MetricName *string
// The metric namespace to filter against. Only the namespace that matches exactly
// will be returned.
Namespace *string
// The token returned by a previous call to indicate that there is more data
// available.
NextToken *string
// When you use this operation in a monitoring account, use this field to return
// metrics only from one source account. To do so, specify that source account ID
// in this field, and also specify true for IncludeLinkedAccounts .
OwningAccount *string
// To filter the results to show only metrics that have had data points published
// in the past three hours, specify this parameter with a value of PT3H . This is
// the only valid value for this parameter.
//
// The results that are returned are an approximation of the value you specify.
// There is a low probability that the returned results include metrics with last
// published data as much as 40 minutes more than the specified time interval.
RecentlyActive types.RecentlyActive
noSmithyDocumentSerde
}
type ListMetricsOutput struct {
// The metrics that match your request.
Metrics []types.Metric
// The token that marks the start of the next batch of returned results.
NextToken *string
// If you are using this operation in a monitoring account, this array contains
// the account IDs of the source accounts where the metrics in the returned data
// are from.
//
// This field is a 1:1 mapping between each metric that is returned and the ID of
// the owning account.
OwningAccounts []string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationListMetricsMiddlewares(stack *middleware.Stack, options Options) (err error) {
if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
return err
}
err = stack.Serialize.Add(&awsAwsquery_serializeOpListMetrics{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsquery_deserializeOpListMetrics{}, middleware.After)
if err != nil {
return err
}
if err := addProtocolFinalizerMiddlewares(stack, options, "ListMetrics"); err != nil {
return fmt.Errorf("add protocol finalizers: %v", err)
}
if err = addlegacyEndpointContextSetter(stack, options); err != nil {
return err
}
if err = addSetLoggerMiddleware(stack, options); err != nil {
return err
}
if err = addClientRequestID(stack); err != nil {
return err
}
if err = addComputeContentLength(stack); err != nil {
return err
}
if err = addResolveEndpointMiddleware(stack, options); err != nil {
return err
}
if err = addComputePayloadSHA256(stack); err != nil {
return err
}
if err = addRetry(stack, options); err != nil {
return err
}
if err = addRawResponseToMetadata(stack); err != nil {
return err
}
if err = addRecordResponseTiming(stack); err != nil {
return err
}
if err = addClientUserAgent(stack, options); err != nil {
return err
}
if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
return err
}
if err = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
return err
}
if err = addOpListMetricsValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opListMetrics(options.Region), middleware.Before); err != nil {
return err
}
if err = addRecursionDetection(stack); 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
}
if err = addDisableHTTPSMiddleware(stack, options); err != nil {
return err
}
return nil
}
// ListMetricsAPIClient is a client that implements the ListMetrics operation.
type ListMetricsAPIClient interface {
ListMetrics(context.Context, *ListMetricsInput, ...func(*Options)) (*ListMetricsOutput, error)
}
var _ ListMetricsAPIClient = (*Client)(nil)
// ListMetricsPaginatorOptions is the paginator options for ListMetrics
type ListMetricsPaginatorOptions struct {
// 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
}
// ListMetricsPaginator is a paginator for ListMetrics
type ListMetricsPaginator struct {
options ListMetricsPaginatorOptions
client ListMetricsAPIClient
params *ListMetricsInput
nextToken *string
firstPage bool
}
// NewListMetricsPaginator returns a new ListMetricsPaginator
func NewListMetricsPaginator(client ListMetricsAPIClient, params *ListMetricsInput, optFns ...func(*ListMetricsPaginatorOptions)) *ListMetricsPaginator {
if params == nil {
params = &ListMetricsInput{}
}
options := ListMetricsPaginatorOptions{}
for _, fn := range optFns {
fn(&options)
}
return &ListMetricsPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *ListMetricsPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next ListMetrics page.
func (p *ListMetricsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*ListMetricsOutput, error) {
if !p.HasMorePages() {
return nil, fmt.Errorf("no more pages available")
}
params := *p.params
params.NextToken = p.nextToken
result, err := p.client.ListMetrics(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_opListMetrics(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
OperationName: "ListMetrics",
}
}