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// Code generated by smithy-go-codegen DO NOT EDIT.
package cloudwatchlogs
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/cloudwatchlogs/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Lists log events from the specified log stream. You can list all of the log
// events or filter using a time range. By default, this operation returns as many
// log events as can fit in a response size of 1MB (up to 10,000 log events). You
// can get additional log events by specifying one of the tokens in a subsequent
// call. This operation can return empty results while there are more log events
// available through the token.
func (c *Client) GetLogEvents(ctx context.Context, params *GetLogEventsInput, optFns ...func(*Options)) (*GetLogEventsOutput, error) {
if params == nil {
params = &GetLogEventsInput{}
}
result, metadata, err := c.invokeOperation(ctx, "GetLogEvents", params, optFns, c.addOperationGetLogEventsMiddlewares)
if err != nil {
return nil, err
}
out := result.(*GetLogEventsOutput)
out.ResultMetadata = metadata
return out, nil
}
type GetLogEventsInput struct {
// The name of the log group.
//
// This member is required.
LogGroupName *string
// The name of the log stream.
//
// This member is required.
LogStreamName *string
// The end of the time range, expressed as the number of milliseconds after Jan 1,
// 1970 00:00:00 UTC. Events with a timestamp equal to or later than this time are
// not included.
EndTime *int64
// The maximum number of log events returned. If you don't specify a value, the
// maximum is as many log events as can fit in a response size of 1 MB, up to
// 10,000 log events.
Limit *int32
// The token for the next set of items to return. (You received this token from a
// previous call.)
NextToken *string
// If the value is true, the earliest log events are returned first. If the value
// is false, the latest log events are returned first. The default value is false.
// If you are using a previous nextForwardToken value as the nextToken in this
// operation, you must specify true for startFromHead.
StartFromHead *bool
// The start of the time range, expressed as the number of milliseconds after Jan
// 1, 1970 00:00:00 UTC. Events with a timestamp equal to this time or later than
// this time are included. Events with a timestamp earlier than this time are not
// included.
StartTime *int64
noSmithyDocumentSerde
}
type GetLogEventsOutput struct {
// The events.
Events []types.OutputLogEvent
// The token for the next set of items in the backward direction. The token expires
// after 24 hours. This token is never null. If you have reached the end of the
// stream, it returns the same token you passed in.
NextBackwardToken *string
// The token for the next set of items in the forward direction. The token expires
// after 24 hours. If you have reached the end of the stream, it returns the same
// token you passed in.
NextForwardToken *string
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationGetLogEventsMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsAwsjson11_serializeOpGetLogEvents{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpGetLogEvents{}, 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 = addOpGetLogEventsValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opGetLogEvents(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
}
// GetLogEventsAPIClient is a client that implements the GetLogEvents operation.
type GetLogEventsAPIClient interface {
GetLogEvents(context.Context, *GetLogEventsInput, ...func(*Options)) (*GetLogEventsOutput, error)
}
var _ GetLogEventsAPIClient = (*Client)(nil)
// GetLogEventsPaginatorOptions is the paginator options for GetLogEvents
type GetLogEventsPaginatorOptions struct {
// The maximum number of log events returned. If you don't specify a value, the
// maximum is as many log events as can fit in a response size of 1 MB, up to
// 10,000 log events.
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
}
// GetLogEventsPaginator is a paginator for GetLogEvents
type GetLogEventsPaginator struct {
options GetLogEventsPaginatorOptions
client GetLogEventsAPIClient
params *GetLogEventsInput
nextToken *string
firstPage bool
}
// NewGetLogEventsPaginator returns a new GetLogEventsPaginator
func NewGetLogEventsPaginator(client GetLogEventsAPIClient, params *GetLogEventsInput, optFns ...func(*GetLogEventsPaginatorOptions)) *GetLogEventsPaginator {
if params == nil {
params = &GetLogEventsInput{}
}
options := GetLogEventsPaginatorOptions{}
if params.Limit != nil {
options.Limit = *params.Limit
}
for _, fn := range optFns {
fn(&options)
}
return &GetLogEventsPaginator{
options: options,
client: client,
params: params,
firstPage: true,
nextToken: params.NextToken,
}
}
// HasMorePages returns a boolean indicating whether more pages are available
func (p *GetLogEventsPaginator) HasMorePages() bool {
return p.firstPage || (p.nextToken != nil && len(*p.nextToken) != 0)
}
// NextPage retrieves the next GetLogEvents page.
func (p *GetLogEventsPaginator) NextPage(ctx context.Context, optFns ...func(*Options)) (*GetLogEventsOutput, error) {
if !p.HasMorePages() {
return nil, fmt.Errorf("no more pages available")
}
params := *p.params
params.NextToken = p.nextToken
var limit *int32
if p.options.Limit > 0 {
limit = &p.options.Limit
}
params.Limit = limit
result, err := p.client.GetLogEvents(ctx, ¶ms, optFns...)
if err != nil {
return nil, err
}
p.firstPage = false
prevToken := p.nextToken
p.nextToken = result.NextForwardToken
if p.options.StopOnDuplicateToken &&
prevToken != nil &&
p.nextToken != nil &&
*prevToken == *p.nextToken {
p.nextToken = nil
}
return result, nil
}
func newServiceMetadataMiddleware_opGetLogEvents(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "logs",
OperationName: "GetLogEvents",
}
}
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