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// Code generated by smithy-go-codegen DO NOT EDIT.
package kinesis
import (
"context"
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/kinesis/types"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Updates the shard count of the specified stream to the specified number of
// shards. Updating the shard count is an asynchronous operation. Upon receiving
// the request, Kinesis Data Streams returns immediately and sets the status of the
// stream to UPDATING. After the update is complete, Kinesis Data Streams sets the
// status of the stream back to ACTIVE. Depending on the size of the stream, the
// scaling action could take a few minutes to complete. You can continue to read
// and write data to your stream while its status is UPDATING. To update the shard
// count, Kinesis Data Streams performs splits or merges on individual shards. This
// can cause short-lived shards to be created, in addition to the final shards.
// These short-lived shards count towards your total shard limit for your account
// in the Region. When using this operation, we recommend that you specify a target
// shard count that is a multiple of 25% (25%, 50%, 75%, 100%). You can specify any
// target value within your shard limit. However, if you specify a target that
// isn't a multiple of 25%, the scaling action might take longer to complete. This
// operation has the following default limits. By default, you cannot do the
// following:
//
// * Scale more than ten times per rolling 24-hour period per stream
//
// *
// Scale up to more than double your current shard count for a stream
//
// * Scale down
// below half your current shard count for a stream
//
// * Scale up to more than 10000
// shards in a stream
//
// * Scale a stream with more than 10000 shards down unless the
// result is less than 10000 shards
//
// * Scale up to more than the shard limit for
// your account
//
// For the default limits for an Amazon Web Services account, see
// Streams Limits
// (https://docs.aws.amazon.com/kinesis/latest/dev/service-sizes-and-limits.html)
// in the Amazon Kinesis Data Streams Developer Guide. To request an increase in
// the call rate limit, the shard limit for this API, or your overall shard limit,
// use the limits form
// (https://console.aws.amazon.com/support/v1#/case/create?issueType=service-limit-increase&limitType=service-code-kinesis).
func (c *Client) UpdateShardCount(ctx context.Context, params *UpdateShardCountInput, optFns ...func(*Options)) (*UpdateShardCountOutput, error) {
if params == nil {
params = &UpdateShardCountInput{}
}
result, metadata, err := c.invokeOperation(ctx, "UpdateShardCount", params, optFns, c.addOperationUpdateShardCountMiddlewares)
if err != nil {
return nil, err
}
out := result.(*UpdateShardCountOutput)
out.ResultMetadata = metadata
return out, nil
}
type UpdateShardCountInput struct {
// The scaling type. Uniform scaling creates shards of equal size.
//
// This member is required.
ScalingType types.ScalingType
// The name of the stream.
//
// This member is required.
StreamName *string
// The new number of shards. This value has the following default limits. By
// default, you cannot do the following:
//
// * Set this value to more than double your
// current shard count for a stream.
//
// * Set this value below half your current
// shard count for a stream.
//
// * Set this value to more than 10000 shards in a
// stream (the default limit for shard count per stream is 10000 per account per
// region), unless you request a limit increase.
//
// * Scale a stream with more than
// 10000 shards down unless you set this value to less than 10000 shards.
//
// This member is required.
TargetShardCount *int32
noSmithyDocumentSerde
}
type UpdateShardCountOutput struct {
// The current number of shards.
CurrentShardCount *int32
// The name of the stream.
StreamName *string
// The updated number of shards.
TargetShardCount *int32
// Metadata pertaining to the operation's result.
ResultMetadata middleware.Metadata
noSmithyDocumentSerde
}
func (c *Client) addOperationUpdateShardCountMiddlewares(stack *middleware.Stack, options Options) (err error) {
err = stack.Serialize.Add(&awsAwsjson11_serializeOpUpdateShardCount{}, middleware.After)
if err != nil {
return err
}
err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpUpdateShardCount{}, 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 = addOpUpdateShardCountValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opUpdateShardCount(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
}
func newServiceMetadataMiddleware_opUpdateShardCount(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
SigningName: "kinesis",
OperationName: "UpdateShardCount",
}
}
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