// Code generated by smithy-go-codegen DO NOT EDIT.

package wafv2

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/wafv2/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Retrieves the specified RuleGroup .
func (c *Client) GetRuleGroup(ctx context.Context, params *GetRuleGroupInput, optFns ...func(*Options)) (*GetRuleGroupOutput, error) {
	if params == nil {
		params = &GetRuleGroupInput{}
	}

	result, metadata, err := c.invokeOperation(ctx, "GetRuleGroup", params, optFns, c.addOperationGetRuleGroupMiddlewares)
	if err != nil {
		return nil, err
	}

	out := result.(*GetRuleGroupOutput)
	out.ResultMetadata = metadata
	return out, nil
}

type GetRuleGroupInput struct {

	// The Amazon Resource Name (ARN) of the entity.
	ARN *string

	// A unique identifier for the rule group. This ID is returned in the responses to
	// create and list commands. You provide it to operations like update and delete.
	Id *string

	// The name of the rule group. You cannot change the name of a rule group after
	// you create it.
	Name *string

	// Specifies whether this is for an Amazon CloudFront distribution or for a
	// regional application. A regional application can be an Application Load Balancer
	// (ALB), an Amazon API Gateway REST API, an AppSync GraphQL API, an Amazon Cognito
	// user pool, an App Runner service, or an Amazon Web Services Verified Access
	// instance. To work with CloudFront, you must also specify the Region US East (N.
	// Virginia) as follows:
	//   - CLI - Specify the Region when you use the CloudFront scope:
	//   --scope=CLOUDFRONT --region=us-east-1 .
	//   - API and SDKs - For all calls, use the Region endpoint us-east-1.
	Scope types.Scope

	noSmithyDocumentSerde
}

type GetRuleGroupOutput struct {

	// A token used for optimistic locking. WAF returns a token to your get and list
	// requests, to mark the state of the entity at the time of the request. To make
	// changes to the entity associated with the token, you provide the token to
	// operations like update and delete . WAF uses the token to ensure that no changes
	// have been made to the entity since you last retrieved it. If a change has been
	// made, the update fails with a WAFOptimisticLockException . If this happens,
	// perform another get , and use the new token returned by that operation.
	LockToken *string

	//
	RuleGroup *types.RuleGroup

	// Metadata pertaining to the operation's result.
	ResultMetadata middleware.Metadata

	noSmithyDocumentSerde
}

func (c *Client) addOperationGetRuleGroupMiddlewares(stack *middleware.Stack, options Options) (err error) {
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpGetRuleGroup{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpGetRuleGroup{}, 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, 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 = stack.Initialize.Add(newServiceMetadataMiddleware_opGetRuleGroup(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
	}
	return nil
}

func newServiceMetadataMiddleware_opGetRuleGroup(region string) *awsmiddleware.RegisterServiceMetadata {
	return &awsmiddleware.RegisterServiceMetadata{
		Region:        region,
		ServiceID:     ServiceID,
		SigningName:   "wafv2",
		OperationName: "GetRuleGroup",
	}
}