service.go

// Code generated by private/model/cli/gen-api/main.go. DO NOT EDIT.

package dynamodb

import (
	"github.com/aws/aws-sdk-go/aws"
	"github.com/aws/aws-sdk-go/aws/client"
	"github.com/aws/aws-sdk-go/aws/client/metadata"
	"github.com/aws/aws-sdk-go/aws/request"
	"github.com/aws/aws-sdk-go/aws/signer/v4"
	"github.com/aws/aws-sdk-go/private/protocol/jsonrpc"
)

// Amazon DynamoDB is a fully managed NoSQL database service that provides fast
// and predictable performance with seamless scalability. DynamoDB lets you
// offload the administrative burdens of operating and scaling a distributed
// database, so that you don't have to worry about hardware provisioning, setup
// and configuration, replication, software patching, or cluster scaling.
//
// With DynamoDB, you can create database tables that can store and retrieve
// any amount of data, and serve any level of request traffic. You can scale
// up or scale down your tables' throughput capacity without downtime or performance
// degradation, and use the AWS Management Console to monitor resource utilization
// and performance metrics.
//
// DynamoDB automatically spreads the data and traffic for your tables over
// a sufficient number of servers to handle your throughput and storage requirements,
// while maintaining consistent and fast performance. All of your data is stored
// on solid state disks (SSDs) and automatically replicated across multiple
// Availability Zones in an AWS region, providing built-in high availability
// and data durability.
// The service client's operations are safe to be used concurrently.
// It is not safe to mutate any of the client's properties though.
// Please also see https://docs.aws.amazon.com/goto/WebAPI/dynamodb-2012-08-10
type DynamoDB struct {
	*client.Client
}

// Used for custom client initialization logic
var initClient func(*client.Client)

// Used for custom request initialization logic
var initRequest func(*request.Request)

// Service information constants
const (
	ServiceName = "dynamodb"  // Service endpoint prefix API calls made to.
	EndpointsID = ServiceName // Service ID for Regions and Endpoints metadata.
)

// New creates a new instance of the DynamoDB client with a session.
// If additional configuration is needed for the client instance use the optional
// aws.Config parameter to add your extra config.
//
// Example:
//     // Create a DynamoDB client from just a session.
//     svc := dynamodb.New(mySession)
//
//     // Create a DynamoDB client with additional configuration
//     svc := dynamodb.New(mySession, aws.NewConfig().WithRegion("us-west-2"))
func New(p client.ConfigProvider, cfgs ...*aws.Config) *DynamoDB {
	c := p.ClientConfig(EndpointsID, cfgs...)
	return newClient(*c.Config, c.Handlers, c.Endpoint, c.SigningRegion, c.SigningName)
}

// newClient creates, initializes and returns a new service client instance.
func newClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegion, signingName string) *DynamoDB {
	svc := &DynamoDB{
		Client: client.New(
			cfg,
			metadata.ClientInfo{
				ServiceName:   ServiceName,
				SigningName:   signingName,
				SigningRegion: signingRegion,
				Endpoint:      endpoint,
				APIVersion:    "2012-08-10",
				JSONVersion:   "1.0",
				TargetPrefix:  "DynamoDB_20120810",
			},
			handlers,
		),
	}

	// Handlers
	svc.Handlers.Sign.PushBackNamed(v4.SignRequestHandler)
	svc.Handlers.Build.PushBackNamed(jsonrpc.BuildHandler)
	svc.Handlers.Unmarshal.PushBackNamed(jsonrpc.UnmarshalHandler)
	svc.Handlers.UnmarshalMeta.PushBackNamed(jsonrpc.UnmarshalMetaHandler)
	svc.Handlers.UnmarshalError.PushBackNamed(jsonrpc.UnmarshalErrorHandler)

	// Run custom client initialization if present
	if initClient != nil {
		initClient(svc.Client)
	}

	return svc
}

// newRequest creates a new request for a DynamoDB operation and runs any
// custom request initialization.
func (c *DynamoDB) newRequest(op *request.Operation, params, data interface{}) *request.Request {
	req := c.NewRequest(op, params, data)

	// Run custom request initialization if present
	if initRequest != nil {
		initRequest(req)
	}

	return req
}