aws

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 Go to latest Published: Dec 20, 2023 License: Apache-2.0 Imports: 13 Imported by: 0

Documentation

Overview

Package aws provides the core SDK's utilities and shared types. Use this package's utilities to simplify setting and reading API operations parameters.

Value and Pointer Conversion Utilities

This package includes a helper conversion utility for each scalar type the SDK's API use. These utilities make getting a pointer of the scalar, and dereferencing a pointer easier.

Each conversion utility comes in two forms. Value to Pointer and Pointer to Value. The Pointer to value will safely dereference the pointer and return its value. If the pointer was nil, the scalar's zero value will be returned.

The value to pointer functions will be named after the scalar type. So get a *string from a string value use the "String" function. This makes it easy to to get pointer of a literal string value, because getting the address of a literal requires assigning the value to a variable first. 

var strPtr *string

// Without the SDK's conversion functions
str := "my string"
strPtr = &str

// With the SDK's conversion functions
strPtr = aws.String("my string")

// Convert *string to string value
str = aws.StringValue(strPtr)

In addition to scalars the aws package also includes conversion utilities for map and slice for commonly types used in API parameters. The map and slice conversion functions use similar naming pattern as the scalar conversion functions. 

var strPtrs []*string
var strs []string = []string{"Go", "Gophers", "Go"}

// Convert []string to []*string
strPtrs = aws.StringSlice(strs)

// Convert []*string to []string
strs = aws.StringValueSlice(strPtrs)

SDK Default HTTP Client

The SDK will use the http.DefaultClient if a HTTP client is not provided to the SDK's Session, or service client constructor. This means that if the http.DefaultClient is modified by other components of your application the modifications will be picked up by the SDK as well.

In some cases this might be intended, but it is a better practice to create a custom HTTP Client to share explicitly through your application. You can configure the SDK to use the custom HTTP Client by setting the HTTPClient value of the SDK's Config type when creating a Session or service client.

Package aws provides core functionality for making requests to AWS services.

Index

Constants

View Source 
const SDKName = "aws-sdk-go"

SDKName is the name of this AWS SDK

View Source 
const SDKVersion = "1.49.7"

SDKVersion is the version of this SDK

View Source 
const UseServiceDefaultRetries = -1

UseServiceDefaultRetries instructs the config to use the service's own default number of retries. This will be the default action if Config.MaxRetries is nil also.

Variables

View Source 
var (
	// ErrMissingRegion is an error that is returned if region configuration is
	// not found.
	ErrMissingRegion = awserr.New("MissingRegion", "could not find region configuration", nil)

	// ErrMissingEndpoint is an error that is returned if an endpoint cannot be
	// resolved for a service.
	ErrMissingEndpoint = awserr.New("MissingEndpoint", "'Endpoint' configuration is required for this service", nil)
)

Functions

func Bool 

func Bool(v bool) *bool

Bool returns a pointer to the bool value passed in.

func BoolMap 

func BoolMap(src map[string]bool) map[string]*bool

BoolMap converts a string map of bool values into a string map of bool pointers

func BoolSlice 

func BoolSlice(src []bool) []*bool

BoolSlice converts a slice of bool values into a slice of bool pointers

func BoolValue 

func BoolValue(v *bool) bool

BoolValue returns the value of the bool pointer passed in or false if the pointer is nil.

func BoolValueMap 

func BoolValueMap(src map[string]*bool) map[string]bool

BoolValueMap converts a string map of bool pointers into a string map of bool values

func BoolValueSlice 

func BoolValueSlice(src []*bool) []bool

BoolValueSlice converts a slice of bool pointers into a slice of bool values

func CopySeekableBody 

func CopySeekableBody(dst io.Writer, src io.ReadSeeker) (int64, error)

CopySeekableBody copies the seekable body to an io.Writer

func Float32 

func Float32(v float32) *float32

Float32 returns a pointer to the float32 value passed in.

func Float32Map 

func Float32Map(src map[string]float32) map[string]*float32

Float32Map converts a string map of float32 values into a string map of float32 pointers

func Float32Slice 

func Float32Slice(src []float32) []*float32

Float32Slice converts a slice of float32 values into a slice of float32 pointers

func Float32Value 

func Float32Value(v *float32) float32

Float32Value returns the value of the float32 pointer passed in or 0 if the pointer is nil.

func Float32ValueMap 

func Float32ValueMap(src map[string]*float32) map[string]float32

Float32ValueMap converts a string map of float32 pointers into a string map of float32 values

func Float32ValueSlice 

func Float32ValueSlice(src []*float32) []float32

Float32ValueSlice converts a slice of float32 pointers into a slice of float32 values

func Float64 

func Float64(v float64) *float64

Float64 returns a pointer to the float64 value passed in.

func Float64Map 

func Float64Map(src map[string]float64) map[string]*float64

Float64Map converts a string map of float64 values into a string map of float64 pointers

func Float64Slice 

func Float64Slice(src []float64) []*float64

Float64Slice converts a slice of float64 values into a slice of float64 pointers

func Float64Value 

func Float64Value(v *float64) float64

Float64Value returns the value of the float64 pointer passed in or 0 if the pointer is nil.

func Float64ValueMap 

func Float64ValueMap(src map[string]*float64) map[string]float64

Float64ValueMap converts a string map of float64 pointers into a string map of float64 values

func Float64ValueSlice 

func Float64ValueSlice(src []*float64) []float64

Float64ValueSlice converts a slice of float64 pointers into a slice of float64 values

func Int 

func Int(v int) *int

Int returns a pointer to the int value passed in.

func Int16 

func Int16(v int16) *int16

Int16 returns a pointer to the int16 value passed in.

func Int16Map 

func Int16Map(src map[string]int16) map[string]*int16

Int16Map converts a string map of int16 values into a string map of int16 pointers

func Int16Slice 

func Int16Slice(src []int16) []*int16

Int16Slice converts a slice of int16 values into a slice of int16 pointers

func Int16Value 

func Int16Value(v *int16) int16

Int16Value returns the value of the int16 pointer passed in or 0 if the pointer is nil.

func Int16ValueMap 

func Int16ValueMap(src map[string]*int16) map[string]int16

Int16ValueMap converts a string map of int16 pointers into a string map of int16 values

func Int16ValueSlice 

func Int16ValueSlice(src []*int16) []int16

Int16ValueSlice converts a slice of int16 pointers into a slice of int16 values

func Int32 

func Int32(v int32) *int32

Int32 returns a pointer to the int32 value passed in.

func Int32Map 

func Int32Map(src map[string]int32) map[string]*int32

Int32Map converts a string map of int32 values into a string map of int32 pointers

func Int32Slice 

func Int32Slice(src []int32) []*int32

Int32Slice converts a slice of int32 values into a slice of int32 pointers

func Int32Value 

func Int32Value(v *int32) int32

Int32Value returns the value of the int32 pointer passed in or 0 if the pointer is nil.

func Int32ValueMap 

func Int32ValueMap(src map[string]*int32) map[string]int32

Int32ValueMap converts a string map of int32 pointers into a string map of int32 values

func Int32ValueSlice 

func Int32ValueSlice(src []*int32) []int32

Int32ValueSlice converts a slice of int32 pointers into a slice of int32 values

func Int64 

func Int64(v int64) *int64

Int64 returns a pointer to the int64 value passed in.

func Int64Map 

func Int64Map(src map[string]int64) map[string]*int64

Int64Map converts a string map of int64 values into a string map of int64 pointers

func Int64Slice 

func Int64Slice(src []int64) []*int64

Int64Slice converts a slice of int64 values into a slice of int64 pointers

func Int64Value 

func Int64Value(v *int64) int64

Int64Value returns the value of the int64 pointer passed in or 0 if the pointer is nil.

func Int64ValueMap 

func Int64ValueMap(src map[string]*int64) map[string]int64

Int64ValueMap converts a string map of int64 pointers into a string map of int64 values

func Int64ValueSlice 

func Int64ValueSlice(src []*int64) []int64

Int64ValueSlice converts a slice of int64 pointers into a slice of int64 values

func Int8 

func Int8(v int8) *int8

Int8 returns a pointer to the int8 value passed in.

func Int8Map 

func Int8Map(src map[string]int8) map[string]*int8

Int8Map converts a string map of int8 values into a string map of int8 pointers

func Int8Slice 

func Int8Slice(src []int8) []*int8

Int8Slice converts a slice of int8 values into a slice of int8 pointers

func Int8Value 

func Int8Value(v *int8) int8

Int8Value returns the value of the int8 pointer passed in or 0 if the pointer is nil.

func Int8ValueMap 

func Int8ValueMap(src map[string]*int8) map[string]int8

Int8ValueMap converts a string map of int8 pointers into a string map of int8 values

func Int8ValueSlice 

func Int8ValueSlice(src []*int8) []int8

Int8ValueSlice converts a slice of int8 pointers into a slice of int8 values

func IntMap 

func IntMap(src map[string]int) map[string]*int

IntMap converts a string map of int values into a string map of int pointers

func IntSlice 

func IntSlice(src []int) []*int

IntSlice converts a slice of int values into a slice of int pointers

func IntValue 

func IntValue(v *int) int

IntValue returns the value of the int pointer passed in or 0 if the pointer is nil.

func IntValueMap 

func IntValueMap(src map[string]*int) map[string]int

IntValueMap converts a string map of int pointers into a string map of int values

func IntValueSlice 

func IntValueSlice(src []*int) []int

IntValueSlice converts a slice of int pointers into a slice of int values

func IsReaderSeekable 

func IsReaderSeekable(r io.Reader) bool

IsReaderSeekable returns if the underlying reader type can be seeked. A io.Reader might not actually be seekable if it is the ReaderSeekerCloser type.

func MillisecondsTimeValue 

func MillisecondsTimeValue(v *int64) time.Time

MillisecondsTimeValue converts an int64 pointer to a time.Time value representing milliseconds sinch Epoch or time.Time{} if the pointer is nil.

func SecondsTimeValue 

func SecondsTimeValue(v *int64) time.Time

SecondsTimeValue converts an int64 pointer to a time.Time value representing seconds since Epoch or time.Time{} if the pointer is nil.

func SeekerLen 

func SeekerLen(s io.Seeker) (int64, error)

SeekerLen attempts to get the number of bytes remaining at the seeker's current position. Returns the number of bytes remaining or error.

func SleepWithContext 

func SleepWithContext(ctx Context, dur time.Duration) error

SleepWithContext will wait for the timer duration to expire, or the context is canceled. Which ever happens first. If the context is canceled the Context's error will be returned.

Expects Context to always return a non-nil error if the Done channel is closed.

func String 

func String(v string) *string

String returns a pointer to the string value passed in.

func StringMap 

func StringMap(src map[string]string) map[string]*string

StringMap converts a string map of string values into a string map of string pointers

func StringSlice 

func StringSlice(src []string) []*string

StringSlice converts a slice of string values into a slice of string pointers

func StringValue 

func StringValue(v *string) string

StringValue returns the value of the string pointer passed in or "" if the pointer is nil.

func StringValueMap 

func StringValueMap(src map[string]*string) map[string]string

StringValueMap converts a string map of string pointers into a string map of string values

func StringValueSlice 

func StringValueSlice(src []*string) []string

StringValueSlice converts a slice of string pointers into a slice of string values

func Time 

func Time(v time.Time) *time.Time

Time returns a pointer to the time.Time value passed in.

func TimeMap 

func TimeMap(src map[string]time.Time) map[string]*time.Time

TimeMap converts a string map of time.Time values into a string map of time.Time pointers

func TimeSlice 

func TimeSlice(src []time.Time) []*time.Time

TimeSlice converts a slice of time.Time values into a slice of time.Time pointers

func TimeUnixMilli 

func TimeUnixMilli(t time.Time) int64

TimeUnixMilli returns a Unix timestamp in milliseconds from "January 1, 1970 UTC". The result is undefined if the Unix time cannot be represented by an int64. Which includes calling TimeUnixMilli on a zero Time is undefined.

This utility is useful for service API's such as CloudWatch Logs which require their unix time values to be in milliseconds.

See Go stdlib https://golang.org/pkg/time/#Time.UnixNano for more information.

func TimeValue 

func TimeValue(v *time.Time) time.Time

TimeValue returns the value of the time.Time pointer passed in or time.Time{} if the pointer is nil.

func TimeValueMap 

func TimeValueMap(src map[string]*time.Time) map[string]time.Time

TimeValueMap converts a string map of time.Time pointers into a string map of time.Time values

func TimeValueSlice 

func TimeValueSlice(src []*time.Time) []time.Time

TimeValueSlice converts a slice of time.Time pointers into a slice of time.Time values

func URLHostname 

func URLHostname(url *url.URL) string

URLHostname will extract the Hostname without port from the URL value.

Wrapper of net/url#URL.Hostname for backwards Go version compatibility.

func Uint 

func Uint(v uint) *uint

Uint returns a pointer to the uint value passed in.

func Uint16 

func Uint16(v uint16) *uint16

Uint16 returns a pointer to the uint16 value passed in.

func Uint16Map 

func Uint16Map(src map[string]uint16) map[string]*uint16

Uint16Map converts a string map of uint16 values into a string map of uint16 pointers

func Uint16Slice 

func Uint16Slice(src []uint16) []*uint16

Uint16Slice converts a slice of uint16 values into a slice of uint16 pointers

func Uint16Value 

func Uint16Value(v *uint16) uint16

Uint16Value returns the value of the uint16 pointer passed in or 0 if the pointer is nil.

func Uint16ValueMap 

func Uint16ValueMap(src map[string]*uint16) map[string]uint16

Uint16ValueMap converts a string map of uint16 pointers into a string map of uint16 values

func Uint16ValueSlice 

func Uint16ValueSlice(src []*uint16) []uint16

Uint16ValueSlice converts a slice of uint16 pointers into a slice of uint16 values

func Uint32 

func Uint32(v uint32) *uint32

Uint32 returns a pointer to the uint32 value passed in.

func Uint32Map 

func Uint32Map(src map[string]uint32) map[string]*uint32

Uint32Map converts a string map of uint32 values into a string map of uint32 pointers

func Uint32Slice 

func Uint32Slice(src []uint32) []*uint32

Uint32Slice converts a slice of uint32 values into a slice of uint32 pointers

func Uint32Value 

func Uint32Value(v *uint32) uint32

Uint32Value returns the value of the uint32 pointer passed in or 0 if the pointer is nil.

func Uint32ValueMap 

func Uint32ValueMap(src map[string]*uint32) map[string]uint32

Uint32ValueMap converts a string map of uint32 pointers into a string map of uint32 values

func Uint32ValueSlice 

func Uint32ValueSlice(src []*uint32) []uint32

Uint32ValueSlice converts a slice of uint32 pointers into a slice of uint32 values

func Uint64 

func Uint64(v uint64) *uint64

Uint64 returns a pointer to the uint64 value passed in.

func Uint64Map 

func Uint64Map(src map[string]uint64) map[string]*uint64

Uint64Map converts a string map of uint64 values into a string map of uint64 pointers

func Uint64Slice 

func Uint64Slice(src []uint64) []*uint64

Uint64Slice converts a slice of uint64 values into a slice of uint64 pointers

func Uint64Value 

func Uint64Value(v *uint64) uint64

Uint64Value returns the value of the uint64 pointer passed in or 0 if the pointer is nil.

func Uint64ValueMap 

func Uint64ValueMap(src map[string]*uint64) map[string]uint64

Uint64ValueMap converts a string map of uint64 pointers into a string map of uint64 values

func Uint64ValueSlice 

func Uint64ValueSlice(src []*uint64) []uint64

Uint64ValueSlice converts a slice of uint64 pointers into a slice of uint64 values

func Uint8 

func Uint8(v uint8) *uint8

Uint8 returns a pointer to the uint8 value passed in.

func Uint8Map 

func Uint8Map(src map[string]uint8) map[string]*uint8

Uint8Map converts a string map of uint8 values into a string map of uint8 pointers

func Uint8Slice 

func Uint8Slice(src []uint8) []*uint8

Uint8Slice converts a slice of uint8 values into a slice of uint8 pointers

func Uint8Value 

func Uint8Value(v *uint8) uint8

Uint8Value returns the value of the uint8 pointer passed in or 0 if the pointer is nil.

func Uint8ValueMap 

func Uint8ValueMap(src map[string]*uint8) map[string]uint8

Uint8ValueMap converts a string map of uint8 pointers into a string map of uint8 values

func Uint8ValueSlice 

func Uint8ValueSlice(src []*uint8) []uint8

Uint8ValueSlice converts a slice of uint8 pointers into a slice of uint8 values

func UintMap 

func UintMap(src map[string]uint) map[string]*uint

UintMap converts a string map of uint values uinto a string map of uint pointers

func UintSlice 

func UintSlice(src []uint) []*uint

UintSlice converts a slice of uint values uinto a slice of uint pointers

func UintValue 

func UintValue(v *uint) uint

UintValue returns the value of the uint pointer passed in or 0 if the pointer is nil.

func UintValueMap 

func UintValueMap(src map[string]*uint) map[string]uint

UintValueMap converts a string map of uint pointers uinto a string map of uint values

func UintValueSlice 

func UintValueSlice(src []*uint) []uint

UintValueSlice converts a slice of uint pointers uinto a slice of uint values

Types

type Config 

type Config struct {
	// Enables verbose error printing of all credential chain errors.
	// Should be used when wanting to see all errors while attempting to
	// retrieve credentials.
	CredentialsChainVerboseErrors *bool

	// The credentials object to use when signing requests. Defaults to a
	// chain of credential providers to search for credentials in environment
	// variables, shared credential file, and EC2 Instance Roles.
	Credentials *credentials.Credentials

	// An optional endpoint URL (hostname only or fully qualified URI)
	// that overrides the default generated endpoint for a client. Set this
	// to `nil` or the value to `""` to use the default generated endpoint.
	//
	// Note: You must still provide a `Region` value when specifying an
	// endpoint for a client.
	Endpoint *string

	// The resolver to use for looking up endpoints for AWS service clients
	// to use based on region.
	EndpointResolver endpoints.Resolver

	// EnforceShouldRetryCheck is used in the AfterRetryHandler to always call
	// ShouldRetry regardless of whether or not if request.Retryable is set.
	// This will utilize ShouldRetry method of custom retryers. If EnforceShouldRetryCheck
	// is not set, then ShouldRetry will only be called if request.Retryable is nil.
	// Proper handling of the request.Retryable field is important when setting this field.
	EnforceShouldRetryCheck *bool

	// The region to send requests to. This parameter is required and must
	// be configured globally or on a per-client basis unless otherwise
	// noted. A full list of regions is found in the "Regions and Endpoints"
	// document.
	//
	// See http://docs.aws.amazon.com/general/latest/gr/rande.html for AWS
	// Regions and Endpoints.
	Region *string

	// Set this to `true` to disable SSL when sending requests. Defaults
	// to `false`.
	DisableSSL *bool

	// The HTTP client to use when sending requests. Defaults to
	// `http.DefaultClient`.
	HTTPClient *http.Client

	// An integer value representing the logging level. The default log level
	// is zero (LogOff), which represents no logging. To enable logging set
	// to a LogLevel Value.
	LogLevel *LogLevelType

	// The logger writer interface to write logging messages to. Defaults to
	// standard out.
	Logger Logger

	// The maximum number of times that a request will be retried for failures.
	// Defaults to -1, which defers the max retry setting to the service
	// specific configuration.
	MaxRetries *int

	// Retryer guides how HTTP requests should be retried in case of
	// recoverable failures.
	//
	// When nil or the value does not implement the request.Retryer interface,
	// the client.DefaultRetryer will be used.
	//
	// When both Retryer and MaxRetries are non-nil, the former is used and
	// the latter ignored.
	//
	// To set the Retryer field in a type-safe manner and with chaining, use
	// the request.WithRetryer helper function:
	//
	//   cfg := request.WithRetryer(aws.NewConfig(), myRetryer)
	//
	Retryer RequestRetryer

	// Disables semantic parameter validation, which validates input for
	// missing required fields and/or other semantic request input errors.
	DisableParamValidation *bool

	// Disables the computation of request and response checksums, e.g.,
	// CRC32 checksums in Amazon DynamoDB.
	DisableComputeChecksums *bool

	// Set this to `true` to force the request to use path-style addressing,
	// i.e., `http://s3.amazonaws.com/BUCKET/KEY`. By default, the S3 client
	// will use virtual hosted bucket addressing when possible
	// (`http://BUCKET.s3.amazonaws.com/KEY`).
	//
	// Note: This configuration option is specific to the Amazon S3 service.
	//
	// See http://docs.aws.amazon.com/AmazonS3/latest/dev/VirtualHosting.html
	// for Amazon S3: Virtual Hosting of Buckets
	S3ForcePathStyle *bool

	// Set this to `true` to disable the SDK adding the `Expect: 100-Continue`
	// header to PUT requests over 2MB of content. 100-Continue instructs the
	// HTTP client not to send the body until the service responds with a
	// `continue` status. This is useful to prevent sending the request body
	// until after the request is authenticated, and validated.
	//
	// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPUT.html
	//
	// 100-Continue is only enabled for Go 1.6 and above. See `http.Transport`'s
	// `ExpectContinueTimeout` for information on adjusting the continue wait
	// timeout. https://golang.org/pkg/net/http/#Transport
	//
	// You should use this flag to disable 100-Continue if you experience issues
	// with proxies or third party S3 compatible services.
	S3Disable100Continue *bool

	// Set this to `true` to enable S3 Accelerate feature. For all operations
	// compatible with S3 Accelerate will use the accelerate endpoint for
	// requests. Requests not compatible will fall back to normal S3 requests.
	//
	// The bucket must be enable for accelerate to be used with S3 client with
	// accelerate enabled. If the bucket is not enabled for accelerate an error
	// will be returned. The bucket name must be DNS compatible to also work
	// with accelerate.
	S3UseAccelerate *bool

	// S3DisableContentMD5Validation config option is temporarily disabled,
	// For S3 GetObject API calls, #1837.
	//
	// Set this to `true` to disable the S3 service client from automatically
	// adding the ContentMD5 to S3 Object Put and Upload API calls. This option
	// will also disable the SDK from performing object ContentMD5 validation
	// on GetObject API calls.
	S3DisableContentMD5Validation *bool

	// Set this to `true` to have the S3 service client to use the region specified
	// in the ARN, when an ARN is provided as an argument to a bucket parameter.
	S3UseARNRegion *bool

	// Set this to `true` to enable the SDK to unmarshal API response header maps to
	// normalized lower case map keys.
	//
	// For example S3's X-Amz-Meta prefixed header will be unmarshaled to lower case
	// Metadata member's map keys. The value of the header in the map is unaffected.
	//
	// The AWS SDK for Go v2, uses lower case header maps by default. The v1
	// SDK provides this opt-in for this option, for backwards compatibility.
	LowerCaseHeaderMaps *bool

	// Set this to `true` to disable the EC2Metadata client from overriding the
	// default http.Client's Timeout. This is helpful if you do not want the
	// EC2Metadata client to create a new http.Client. This options is only
	// meaningful if you're not already using a custom HTTP client with the
	// SDK. Enabled by default.
	//
	// Must be set and provided to the session.NewSession() in order to disable
	// the EC2Metadata overriding the timeout for default credentials chain.
	//
	// Example:
	//    sess := session.Must(session.NewSession(aws.NewConfig()
	//       .WithEC2MetadataDisableTimeoutOverride(true)))
	//
	//    svc := s3.New(sess)
	//
	EC2MetadataDisableTimeoutOverride *bool

	// Set this to `false` to disable EC2Metadata client from falling back to IMDSv1.
	// By default, EC2 role credentials will fall back to IMDSv1 as needed for backwards compatibility.
	// You can disable this behavior by explicitly setting this flag to `false`. When false, the EC2Metadata
	// client will return any errors encountered from attempting to fetch a token instead of silently
	// using the insecure data flow of IMDSv1.
	//
	// Example:
	//    sess := session.Must(session.NewSession(aws.NewConfig()
	//       .WithEC2MetadataEnableFallback(false)))
	//
	//    svc := s3.New(sess)
	//
	// See [configuring IMDS] for more information.
	//
	// [configuring IMDS]: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/configuring-instance-metadata-service.html
	EC2MetadataEnableFallback *bool

	// Instructs the endpoint to be generated for a service client to
	// be the dual stack endpoint. The dual stack endpoint will support
	// both IPv4 and IPv6 addressing.
	//
	// Setting this for a service which does not support dual stack will fail
	// to make requests. It is not recommended to set this value on the session
	// as it will apply to all service clients created with the session. Even
	// services which don't support dual stack endpoints.
	//
	// If the Endpoint config value is also provided the UseDualStack flag
	// will be ignored.
	//
	// Only supported with.
	//
	//     sess := session.Must(session.NewSession())
	//
	//     svc := s3.New(sess, &aws.Config{
	//         UseDualStack: aws.Bool(true),
	//     })
	//
	// Deprecated: This option will continue to function for S3 and S3 Control for backwards compatibility.
	// UseDualStackEndpoint should be used to enable usage of a service's dual-stack endpoint for all service clients
	// moving forward. For S3 and S3 Control, when UseDualStackEndpoint is set to a non-zero value it takes higher
	// precedence then this option.
	UseDualStack *bool

	// Sets the resolver to resolve a dual-stack endpoint for the service.
	UseDualStackEndpoint endpoints.DualStackEndpointState

	// UseFIPSEndpoint specifies the resolver must resolve a FIPS endpoint.
	UseFIPSEndpoint endpoints.FIPSEndpointState

	// SleepDelay is an override for the func the SDK will call when sleeping
	// during the lifecycle of a request. Specifically this will be used for
	// request delays. This value should only be used for testing. To adjust
	// the delay of a request see the aws/client.DefaultRetryer and
	// aws/request.Retryer.
	//
	// SleepDelay will prevent any Context from being used for canceling retry
	// delay of an API operation. It is recommended to not use SleepDelay at all
	// and specify a Retryer instead.
	SleepDelay func(time.Duration)

	// DisableRestProtocolURICleaning will not clean the URL path when making rest protocol requests.
	// Will default to false. This would only be used for empty directory names in s3 requests.
	//
	// Example:
	//    sess := session.Must(session.NewSession(&aws.Config{
	//         DisableRestProtocolURICleaning: aws.Bool(true),
	//    }))
	//
	//    svc := s3.New(sess)
	//    out, err := svc.GetObject(&s3.GetObjectInput {
	//    	Bucket: aws.String("bucketname"),
	//    	Key: aws.String("//foo//bar//moo"),
	//    })
	DisableRestProtocolURICleaning *bool

	// EnableEndpointDiscovery will allow for endpoint discovery on operations that
	// have the definition in its model. By default, endpoint discovery is off.
	// To use EndpointDiscovery, Endpoint should be unset or set to an empty string.
	//
	// Example:
	//    sess := session.Must(session.NewSession(&aws.Config{
	//         EnableEndpointDiscovery: aws.Bool(true),
	//    }))
	//
	//    svc := s3.New(sess)
	//    out, err := svc.GetObject(&s3.GetObjectInput {
	//    	Bucket: aws.String("bucketname"),
	//    	Key: aws.String("/foo/bar/moo"),
	//    })
	EnableEndpointDiscovery *bool

	// DisableEndpointHostPrefix will disable the SDK's behavior of prefixing
	// request endpoint hosts with modeled information.
	//
	// Disabling this feature is useful when you want to use local endpoints
	// for testing that do not support the modeled host prefix pattern.
	DisableEndpointHostPrefix *bool

	// STSRegionalEndpoint will enable regional or legacy endpoint resolving
	STSRegionalEndpoint endpoints.STSRegionalEndpoint

	// S3UsEast1RegionalEndpoint will enable regional or legacy endpoint resolving
	S3UsEast1RegionalEndpoint endpoints.S3UsEast1RegionalEndpoint
}

A Config provides service configuration for service clients. By default, all clients will use the defaults.DefaultConfig structure. 

// Create Session with MaxRetries configuration to be shared by multiple
// service clients.
sess := session.Must(session.NewSession(&aws.Config{
    MaxRetries: aws.Int(3),
}))

// Create S3 service client with a specific Region.
svc := s3.New(sess, &aws.Config{
    Region: aws.String("us-west-2"),
})

func NewConfig 

func NewConfig() *Config

NewConfig returns a new Config pointer that can be chained with builder methods to set multiple configuration values inline without using pointers. 

// Create Session with MaxRetries configuration to be shared by multiple
// service clients.
sess := session.Must(session.NewSession(aws.NewConfig().
    WithMaxRetries(3),
))

// Create S3 service client with a specific Region.
svc := s3.New(sess, aws.NewConfig().
    WithRegion("us-west-2"),
)

func (*Config) Copy 

func (c *Config) Copy(cfgs ...*Config) *Config

Copy will return a shallow copy of the Config object. If any additional configurations are provided they will be merged into the new config returned.

func (*Config) MergeIn 

func (c *Config) MergeIn(cfgs ...*Config)

MergeIn merges the passed in configs into the existing config object.

func (*Config) WithCredentials 

func (c *Config) WithCredentials(creds *credentials.Credentials) *Config

WithCredentials sets a config Credentials value returning a Config pointer for chaining.

func (*Config) WithCredentialsChainVerboseErrors 

func (c *Config) WithCredentialsChainVerboseErrors(verboseErrs bool) *Config

WithCredentialsChainVerboseErrors sets a config verbose errors boolean and returning a Config pointer.

func (*Config) WithDisableComputeChecksums 

func (c *Config) WithDisableComputeChecksums(disable bool) *Config

WithDisableComputeChecksums sets a config DisableComputeChecksums value returning a Config pointer for chaining.

func (*Config) WithDisableEndpointHostPrefix 

func (c *Config) WithDisableEndpointHostPrefix(t bool) *Config

WithDisableEndpointHostPrefix will set whether or not to use modeled host prefix when making requests.

func (*Config) WithDisableParamValidation 

func (c *Config) WithDisableParamValidation(disable bool) *Config

WithDisableParamValidation sets a config DisableParamValidation value returning a Config pointer for chaining.

func (*Config) WithDisableRestProtocolURICleaning 

func (c *Config) WithDisableRestProtocolURICleaning(t bool) *Config

WithDisableRestProtocolURICleaning sets a config DisableRestProtocolURICleaning value returning a Config pointer for chaining.

func (*Config) WithDisableSSL 

func (c *Config) WithDisableSSL(disable bool) *Config

WithDisableSSL sets a config DisableSSL value returning a Config pointer for chaining.

func (*Config) WithEC2MetadataDisableTimeoutOverride 

func (c *Config) WithEC2MetadataDisableTimeoutOverride(enable bool) *Config

WithEC2MetadataDisableTimeoutOverride sets a config EC2MetadataDisableTimeoutOverride value returning a Config pointer for chaining.

func (*Config) WithEC2MetadataEnableFallback 

func (c *Config) WithEC2MetadataEnableFallback(v bool) *Config

WithEC2MetadataEnableFallback sets a config EC2MetadataEnableFallback value returning a Config pointer for chaining.

func (*Config) WithEndpoint 

func (c *Config) WithEndpoint(endpoint string) *Config

WithEndpoint sets a config Endpoint value returning a Config pointer for chaining.

func (*Config) WithEndpointDiscovery 

func (c *Config) WithEndpointDiscovery(t bool) *Config

WithEndpointDiscovery will set whether or not to use endpoint discovery.

func (*Config) WithEndpointResolver 

func (c *Config) WithEndpointResolver(resolver endpoints.Resolver) *Config

WithEndpointResolver sets a config EndpointResolver value returning a Config pointer for chaining.

func (*Config) WithHTTPClient 

func (c *Config) WithHTTPClient(client *http.Client) *Config

WithHTTPClient sets a config HTTPClient value returning a Config pointer for chaining.

func (*Config) WithLogLevel 

func (c *Config) WithLogLevel(level LogLevelType) *Config

WithLogLevel sets a config LogLevel value returning a Config pointer for chaining.

func (*Config) WithLogger 

func (c *Config) WithLogger(logger Logger) *Config

WithLogger sets a config Logger value returning a Config pointer for chaining.

func (*Config) WithLowerCaseHeaderMaps 

func (c *Config) WithLowerCaseHeaderMaps(t bool) *Config

WithLowerCaseHeaderMaps sets a config LowerCaseHeaderMaps value returning a Config pointer for chaining.

func (*Config) WithMaxRetries 

func (c *Config) WithMaxRetries(max int) *Config

WithMaxRetries sets a config MaxRetries value returning a Config pointer for chaining.

func (*Config) WithRegion 

func (c *Config) WithRegion(region string) *Config

WithRegion sets a config Region value returning a Config pointer for chaining.

func (*Config) WithS3Disable100Continue 

func (c *Config) WithS3Disable100Continue(disable bool) *Config

WithS3Disable100Continue sets a config S3Disable100Continue value returning a Config pointer for chaining.

func (*Config) WithS3DisableContentMD5Validation 

func (c *Config) WithS3DisableContentMD5Validation(enable bool) *Config

WithS3DisableContentMD5Validation sets a config S3DisableContentMD5Validation value returning a Config pointer for chaining.

func (*Config) WithS3ForcePathStyle 

func (c *Config) WithS3ForcePathStyle(force bool) *Config

WithS3ForcePathStyle sets a config S3ForcePathStyle value returning a Config pointer for chaining.

func (*Config) WithS3UsEast1RegionalEndpoint 

func (c *Config) WithS3UsEast1RegionalEndpoint(sre endpoints.S3UsEast1RegionalEndpoint) *Config

WithS3UsEast1RegionalEndpoint will set whether or not to use regional endpoint flag when resolving the endpoint for a service

func (*Config) WithS3UseARNRegion 

func (c *Config) WithS3UseARNRegion(enable bool) *Config

WithS3UseARNRegion sets a config S3UseARNRegion value and returning a Config pointer for chaining

func (*Config) WithS3UseAccelerate 

func (c *Config) WithS3UseAccelerate(enable bool) *Config

WithS3UseAccelerate sets a config S3UseAccelerate value returning a Config pointer for chaining.

func (*Config) WithSTSRegionalEndpoint 

func (c *Config) WithSTSRegionalEndpoint(sre endpoints.STSRegionalEndpoint) *Config

WithSTSRegionalEndpoint will set whether or not to use regional endpoint flag when resolving the endpoint for a service

func (*Config) WithSleepDelay 

func (c *Config) WithSleepDelay(fn func(time.Duration)) *Config

WithSleepDelay overrides the function used to sleep while waiting for the next retry. Defaults to time.Sleep.

func (*Config) WithUseDualStack 

func (c *Config) WithUseDualStack(enable bool) *Config

WithUseDualStack sets a config UseDualStack value returning a Config pointer for chaining.

type Context 

type Context = context.Context

Context is an alias of the Go stdlib's context.Context interface. It can be used within the SDK's API operation "WithContext" methods.

See https://golang.org/pkg/context on how to use contexts.

func BackgroundContext 

func BackgroundContext() Context

BackgroundContext returns a context that will never be canceled, has no values, and no deadline. This context is used by the SDK to provide backwards compatibility with non-context API operations and functionality.

Go 1.6 and before: This context function is equivalent to context.Background in the Go stdlib.

Go 1.7 and later: The context returned will be the value returned by context.Background()

See https://golang.org/pkg/context for more information on Contexts.

type JSONValue 

type JSONValue map[string]interface{}

JSONValue is a representation of a grab bag type that will be marshaled into a json string. This type can be used just like any other map. 

Example:

values := aws.JSONValue{
	"Foo": "Bar",
}
values["Baz"] = "Qux"

type LogLevelType 

type LogLevelType uint

A LogLevelType defines the level logging should be performed at. Used to instruct the SDK which statements should be logged. 

const (
	// LogOff states that no logging should be performed by the SDK. This is the
	// default state of the SDK, and should be use to disable all logging.
	LogOff LogLevelType = iota * 0x1000

	// LogDebug state that debug output should be logged by the SDK. This should
	// be used to inspect request made and responses received.
	LogDebug
)
const (
	// LogDebugWithSigning states that the SDK should log request signing and
	// presigning events. This should be used to log the signing details of
	// requests for debugging. Will also enable LogDebug.
	LogDebugWithSigning LogLevelType = LogDebug | (1 << iota)

	// LogDebugWithHTTPBody states the SDK should log HTTP request and response
	// HTTP bodys in addition to the headers and path. This should be used to
	// see the body content of requests and responses made while using the SDK
	// Will also enable LogDebug.
	LogDebugWithHTTPBody

	// LogDebugWithRequestRetries states the SDK should log when service requests will
	// be retried. This should be used to log when you want to log when service
	// requests are being retried. Will also enable LogDebug.
	LogDebugWithRequestRetries

	// LogDebugWithRequestErrors states the SDK should log when service requests fail
	// to build, send, validate, or unmarshal.
	LogDebugWithRequestErrors

	// LogDebugWithEventStreamBody states the SDK should log EventStream
	// request and response bodys. This should be used to log the EventStream
	// wire unmarshaled message content of requests and responses made while
	// using the SDK Will also enable LogDebug.
	LogDebugWithEventStreamBody

	// LogDebugWithDeprecated states the SDK should log details about deprecated functionality.
	LogDebugWithDeprecated
)

Debug Logging Sub Levels

func LogLevel 

func LogLevel(l LogLevelType) *LogLevelType

LogLevel returns the pointer to a LogLevel. Should be used to workaround not being able to take the address of a non-composite literal.

func (*LogLevelType) AtLeast 

func (l *LogLevelType) AtLeast(v LogLevelType) bool

AtLeast returns true if this LogLevel is at least high enough to satisfies v. Is safe to use on nil value LogLevelTypes. If LogLevel is nil, will default to LogOff comparison.

func (*LogLevelType) Matches 

func (l *LogLevelType) Matches(v LogLevelType) bool

Matches returns true if the v LogLevel is enabled by this LogLevel. Should be used with logging sub levels. Is safe to use on nil value LogLevelTypes. If LogLevel is nil, will default to LogOff comparison.

func (*LogLevelType) Value 

func (l *LogLevelType) Value() LogLevelType

Value returns the LogLevel value or the default value LogOff if the LogLevel is nil. Safe to use on nil value LogLevelTypes.

type Logger 

type Logger interface {
	Log(...interface{})
}

A Logger is a minimalistic interface for the SDK to log messages to. Should be used to provide custom logging writers for the SDK to use.

func NewDefaultLogger 

func NewDefaultLogger() Logger

NewDefaultLogger returns a Logger which will write log messages to stdout, and use same formatting runes as the stdlib log.Logger

type LoggerFunc 

type LoggerFunc func(...interface{})

A LoggerFunc is a convenience type to convert a function taking a variadic list of arguments and wrap it so the Logger interface can be used.

Example: 

s3.New(sess, &aws.Config{Logger: aws.LoggerFunc(func(args ...interface{}) {
    fmt.Fprintln(os.Stdout, args...)
})})

func (LoggerFunc) Log 

func (f LoggerFunc) Log(args ...interface{})

Log calls the wrapped function with the arguments provided

type MultiCloser 

type MultiCloser []io.Closer

MultiCloser is a utility to close multiple io.Closers within a single statement.

func (MultiCloser) Close 

func (m MultiCloser) Close() error

Close closes all of the io.Closers making up the MultiClosers. Any errors that occur while closing will be returned in the order they occur.

type ReaderSeekerCloser 

type ReaderSeekerCloser struct {
	// contains filtered or unexported fields
}

ReaderSeekerCloser represents a reader that can also delegate io.Seeker and io.Closer interfaces to the underlying object if they are available.

func ReadSeekCloser 

func ReadSeekCloser(r io.Reader) ReaderSeekerCloser

ReadSeekCloser wraps a io.Reader returning a ReaderSeekerCloser. Allows the SDK to accept an io.Reader that is not also an io.Seeker for unsigned streaming payload API operations.

A ReadSeekCloser wrapping an nonseekable io.Reader used in an API operation's input will prevent that operation being retried in the case of network errors, and cause operation requests to fail if the operation requires payload signing.

Note: If using With S3 PutObject to stream an object upload The SDK's S3 Upload manager (s3manager.Uploader) provides support for streaming with the ability to retry network errors.

func (ReaderSeekerCloser) Close 

func (r ReaderSeekerCloser) Close() error

Close closes the ReaderSeekerCloser.

If the ReaderSeekerCloser is not an io.Closer nothing will be done.

func (ReaderSeekerCloser) GetLen 

func (r ReaderSeekerCloser) GetLen() (int64, error)

GetLen returns the length of the bytes remaining in the underlying reader. Checks first for Len(), then io.Seeker to determine the size of the underlying reader.

Will return -1 if the length cannot be determined.

func (ReaderSeekerCloser) HasLen 

func (r ReaderSeekerCloser) HasLen() (int, bool)

HasLen returns the length of the underlying reader if the value implements the Len() int method.

func (ReaderSeekerCloser) IsSeeker 

func (r ReaderSeekerCloser) IsSeeker() bool

IsSeeker returns if the underlying reader is also a seeker.

func (ReaderSeekerCloser) Read 

func (r ReaderSeekerCloser) Read(p []byte) (int, error)

Read reads from the reader up to size of p. The number of bytes read, and error if it occurred will be returned.

If the reader is not an io.Reader zero bytes read, and nil error will be returned.

Performs the same functionality as io.Reader Read

func (ReaderSeekerCloser) Seek 

func (r ReaderSeekerCloser) Seek(offset int64, whence int) (int64, error)

Seek sets the offset for the next Read to offset, interpreted according to whence: 0 means relative to the origin of the file, 1 means relative to the current offset, and 2 means relative to the end. Seek returns the new offset and an error, if any.

If the ReaderSeekerCloser is not an io.Seeker nothing will be done.

type RequestRetryer 

type RequestRetryer interface{}

RequestRetryer is an alias for a type that implements the request.Retryer interface.

type WriteAtBuffer 

type WriteAtBuffer struct {

	// GrowthCoeff defines the growth rate of the internal buffer. By
	// default, the growth rate is 1, where expanding the internal
	// buffer will allocate only enough capacity to fit the new expected
	// length.
	GrowthCoeff float64
	// contains filtered or unexported fields
}

A WriteAtBuffer provides a in memory buffer supporting the io.WriterAt interface Can be used with the s3manager.Downloader to download content to a buffer in memory. Safe to use concurrently.

func NewWriteAtBuffer 

func NewWriteAtBuffer(buf []byte) *WriteAtBuffer

NewWriteAtBuffer creates a WriteAtBuffer with an internal buffer provided by buf.

func (*WriteAtBuffer) Bytes 

func (b *WriteAtBuffer) Bytes() []byte

Bytes returns a slice of bytes written to the buffer.

func (*WriteAtBuffer) WriteAt 

func (b *WriteAtBuffer) WriteAt(p []byte, pos int64) (n int, err error)

WriteAt writes a slice of bytes to a buffer starting at the position provided The number of bytes written will be returned, or error. Can overwrite previous written slices if the write ats overlap.

Source Files

View all Source files

Directories

Path Synopsis
Package arn provides a parser for interacting with Amazon Resource Names.
 Package arn provides a parser for interacting with Amazon Resource Names.
auth
bearer
Package awserr represents API error interface accessors for the SDK.
 Package awserr represents API error interface accessors for the SDK.
metadata
DO NOT EDIT
 DO NOT EDIT
Package credentials provides credential retrieval and management
 Package credentials provides credential retrieval and management
ec2rolecreds
endpointcreds
Package endpointcreds provides support for retrieving credentials from an arbitrary HTTP endpoint.
 Package endpointcreds provides support for retrieving credentials from an arbitrary HTTP endpoint.
plugincreds
Package plugincreds implements a credentials provider sourced from a Go plugin.
 Package plugincreds implements a credentials provider sourced from a Go plugin.
processcreds
Package processcreds is a credential Provider to retrieve `credential_process` credentials.
 Package processcreds is a credential Provider to retrieve `credential_process` credentials.
ssocreds
Package ssocreds provides a credential provider for retrieving temporary AWS credentials using an SSO access token.
 Package ssocreds provides a credential provider for retrieving temporary AWS credentials using an SSO access token.
stscreds
Package stscreds are credential Providers to retrieve STS AWS credentials.
 Package stscreds are credential Providers to retrieve STS AWS credentials.
Package csm provides the Client Side Monitoring (CSM) client which enables sending metrics via UDP connection to the CSM agent.
 Package csm provides the Client Side Monitoring (CSM) client which enables sending metrics via UDP connection to the CSM agent.
Package defaults is a collection of helpers to retrieve the SDK's default configuration and handlers.
 Package defaults is a collection of helpers to retrieve the SDK's default configuration and handlers.
Package ec2metadata provides the client for making API calls to the EC2 Metadata service.
 Package ec2metadata provides the client for making API calls to the EC2 Metadata service.
Package endpoints provides the types and functionality for defining regions and endpoints, as well as querying those definitions.
 Package endpoints provides the types and functionality for defining regions and endpoints, as well as querying those definitions.
Package session provides configuration for the SDK's service clients.
 Package session provides configuration for the SDK's service clients.
signer
v4
Package v4 implements signing for AWS V4 signer
 Package v4 implements signing for AWS V4 signer

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