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// Code generated by smithy-go-codegen DO NOT EDIT.
package kinesis
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/kinesis/types"
"github.com/aws/smithy-go/middleware"
"github.com/aws/smithy-go/ptr"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
// Updates the shard count of the specified stream to the specified number of
// shards. This API is only supported for the data streams with the provisioned
// capacity mode. When invoking this API, you must use either the StreamARN or the
// StreamName parameter, or both. It is recommended that you use the StreamARN
// input parameter when you invoke this API. 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
// - Make over 10 TPS. TPS over 10 will trigger the LimitExceededException
//
// 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 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
// The ARN of the stream.
StreamARN *string
// The name of the stream.
StreamName *string
noSmithyDocumentSerde
}
func (in *UpdateShardCountInput) bindEndpointParams(p *EndpointParameters) {
p.StreamARN = in.StreamARN
p.OperationType = ptr.String("control")
}
type UpdateShardCountOutput struct {
// The current number of shards.
CurrentShardCount *int32
// The ARN of the stream.
StreamARN *string
// 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) {
if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
return err
}
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 := addProtocolFinalizerMiddlewares(stack, options, "UpdateShardCount"); 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 = 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 = awsmiddleware.AddRawResponseToMetadata(stack); err != nil {
return err
}
if err = awsmiddleware.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 = addOpUpdateShardCountValidationMiddleware(stack); err != nil {
return err
}
if err = stack.Initialize.Add(newServiceMetadataMiddleware_opUpdateShardCount(options.Region), middleware.Before); err != nil {
return err
}
if err = awsmiddleware.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
}
func newServiceMetadataMiddleware_opUpdateShardCount(region string) *awsmiddleware.RegisterServiceMetadata {
return &awsmiddleware.RegisterServiceMetadata{
Region: region,
ServiceID: ServiceID,
OperationName: "UpdateShardCount",
}
}
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