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contrib/aws/aws-sdk-go-v2/aws: Adding LoadOptionsFunc implementation #2095

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contrib/aws/aws-sdk-go-v2/aws: Adding LoadOptionsFunc implementation #2095

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27 changes: 23 additions & 4 deletions contrib/aws/aws-sdk-go-v2/aws/aws.go
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Expand Up @@ -23,6 +23,7 @@ import (

"github.com/aws/aws-sdk-go-v2/aws"
awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
awsconfig "github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/service/dynamodb"
"github.com/aws/aws-sdk-go-v2/service/eventbridge"
"github.com/aws/aws-sdk-go-v2/service/kinesis"
Expand All @@ -43,18 +44,36 @@ func init() {

type spanTimestampKey struct{}

// AppendMiddleware takes the aws.Config and adds the Datadog tracing middleware into the APIOptions middleware stack.
// See https://aws.github.io/aws-sdk-go-v2/docs/middleware for more information.
func AppendMiddleware(awsCfg *aws.Config, opts ...Option) {
func prepConfig(opts ...Option) *config {
cfg := &config{}

defaults(cfg)
for _, opt := range opts {
opt(cfg)
}

return cfg
}

func appendMiddleware(cfg *config, opts *[]func(*middleware.Stack) error) {
tm := traceMiddleware{cfg: cfg}
awsCfg.APIOptions = append(awsCfg.APIOptions, tm.initTraceMiddleware, tm.startTraceMiddleware, tm.deserializeTraceMiddleware)
*opts = append(*opts, tm.initTraceMiddleware, tm.startTraceMiddleware, tm.deserializeTraceMiddleware)
}

// WithDataDogTracer returns an AWS config LoadOptionsFunc that adds the DataDog tracing middleware into the
// APIOptions middleware stack.
// See https://aws.github.io/aws-sdk-go-v2/docs/middleware for more information.
func WithDataDogTracer(opts ...Option) awsconfig.LoadOptionsFunc {
return func(awsOpt *awsconfig.LoadOptions) error {
appendMiddleware(prepConfig(opts...), &awsOpt.APIOptions)
return nil
}
}

// AppendMiddleware takes the aws.Config and adds the Datadog tracing middleware into the APIOptions middleware stack.
// See https://aws.github.io/aws-sdk-go-v2/docs/middleware for more information.
func AppendMiddleware(awsCfg *aws.Config, opts ...Option) {
appendMiddleware(prepConfig(opts...), &awsCfg.APIOptions)
}

type traceMiddleware struct {
Expand Down