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apiversion.go
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/
apiversion.go
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package customizations
import (
"context"
"fmt"
"github.com/aws/smithy-go"
"github.com/aws/smithy-go/middleware"
smithyhttp "github.com/aws/smithy-go/transport/http"
)
const glacierAPIVersionHeaderKey = "X-Amz-Glacier-Version"
// AddGlacierAPIVersionMiddleware explicitly add handling for the Glacier api version
// middleware to the operation stack.
func AddGlacierAPIVersionMiddleware(stack *middleware.Stack, apiVersion string) error {
return stack.Serialize.Add(&GlacierAPIVersion{apiVersion: apiVersion}, middleware.Before)
}
// GlacierAPIVersion handles automatically setting Glacier's API version header.
type GlacierAPIVersion struct {
apiVersion string
}
// ID returns the id for the middleware.
func (*GlacierAPIVersion) ID() string {
return "Glacier:APIVersion"
}
// HandleSerialize implements the SerializeMiddleware interface
func (m *GlacierAPIVersion) HandleSerialize(
ctx context.Context, input middleware.SerializeInput, next middleware.SerializeHandler,
) (
output middleware.SerializeOutput, metadata middleware.Metadata, err error,
) {
req, ok := input.Request.(*smithyhttp.Request)
if !ok {
return output, metadata, &smithy.SerializationError{
Err: fmt.Errorf("unknown request type %T", input.Request),
}
}
req.Header.Set(glacierAPIVersionHeaderKey, m.apiVersion)
return next.HandleSerialize(ctx, input)
}