minor: add http/aws requests tracer support

README.md

@@ -61,6 +61,41 @@ func main() {
 }
 ```
 
+For tracing AWS SDK v2.0 calls check the following example:
+
+```go
+  client := &http.Client{
+    Transport: lumigotracer.NewTransport(http.DefaultTransport),
+  }
+
+  // for AWS SDK v1.x
+  sess := session.Must(session.NewSession(&aws.Config{
+    HTTPClient: client,
+  }))
+
+  svc := s3.New(sess)
+
+  // for AWS SDK v2.x
+  cfg, _ := config.LoadDefaultConfig(context.Background(), config.WithHTTPClient(client))
+	svc := s3.NewFromConfig(cfg)
+
+```
+
+For tracing HTTP calls check the following example:
+
+```go
+  client := &http.Client{
+    Transport: lumigotracer.NewTransport(http.DefaultTransport),
+  }
+	req, _ := http.NewRequest("GET", "https://<your-url>", nil)
+
+  // for net/http
+	res, err := client.Do(req)
+
+  // for golang.org/x/net/context/ctxhttp
+	res, err := ctxhttp.Do(context.Background(), client, req)
+```
+
 In your lambda environment variables you need to set `LUMIGO_USE_TRACER_EXTENSION: true` and use the following layer for `us-east-1`: `arn:aws:lambda:us-east-1:114300393969:layer:lumigo-tracer-extension:36`. The layer will be available in more regions soon.
 
 ## Contributing

_example/lambda.go

@@ -4,11 +4,16 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"net/http"
 	"os"
 	"strconv"
 
 	"github.com/aws/aws-lambda-go/events"
 	"github.com/aws/aws-lambda-go/lambda"
+	"github.com/aws/aws-sdk-go-v2/config"
+	"github.com/aws/aws-sdk-go-v2/service/s3"
+	"github.com/aws/aws-sdk-go-v2/service/ssm"
+	"github.com/aws/aws-sdk-go/aws"
 	lumigotracer "github.com/lumigo-io/go-tracer-beta"
 )
 
@@ -17,7 +22,33 @@ type MyEvent struct {
 }
 
 func HandleRequest(ctx context.Context, name MyEvent) (events.APIGatewayProxyResponse, error) {
+	client := &http.Client{
+		Transport: lumigotracer.NewTransport(http.DefaultTransport),
+	}
+	cfg, _ := config.LoadDefaultConfig(context.Background(), config.WithHTTPClient(client))
+	cfg.Region = "us-east-1"
+	// testing S3
+	svc := s3.NewFromConfig(cfg)
+	_, err := svc.ListBuckets(context.Background(), &s3.ListBucketsInput{})
+	if err != nil {
+		return events.APIGatewayProxyResponse{Body: "", StatusCode: 500}, err
+	}
+
+	svc.CreateBucket(context.Background(), &s3.CreateBucketInput{
+		Bucket: aws.String("test-bucket-go-tracer-2"),
+	})
+
+	// testing SSM
+	ssmClient := ssm.NewFromConfig(cfg)
+	input := &ssm.GetParameterInput{
+		Name: aws.String("parameter-name"),
+	}
+	_, err = ssmClient.GetParameter(context.Background(), input)
+	if err != nil {
+		return events.APIGatewayProxyResponse{Body: "ssm error", StatusCode: 500}, err
+	}
 	response := fmt.Sprintf("Hello %s!", name.Name)
+
 	returnErr, ok := os.LookupEnv("RETURN_ERROR")
 	if !ok {
 		return events.APIGatewayProxyResponse{Body: response, StatusCode: 200}, nil
@@ -26,9 +57,11 @@ func HandleRequest(ctx context.Context, name MyEvent) (events.APIGatewayProxyRes
 	if err != nil {
 		return events.APIGatewayProxyResponse{Body: response, StatusCode: 500}, err
 	}
+	// testing return error
 	if isReturnErr {
 		return events.APIGatewayProxyResponse{Body: response, StatusCode: 500}, errors.New("failed error")
 	}
+	// testing return
 	return events.APIGatewayProxyResponse{Body: response, StatusCode: 200}, nil
 }
 

_example/terraform/lambda.tf

@@ -11,7 +11,7 @@ resource "aws_lambda_function" "otel" {
 
   role = aws_iam_role.lambda_exec.arn
 
-  layers = ["arn:aws:lambda:us-east-1:114300393969:layer:lumigo-tracer-extension:33"]
+  layers = ["arn:aws:lambda:us-east-1:114300393969:layer:lumigo-tracer-extension:37"]
 
    environment {
     variables = {
@@ -59,7 +59,14 @@ resource "aws_iam_role_policy" "lambda_s3_read" {
   "Statement": [
     {
       "Action": [
-            "s3:ListAllMyBuckets"
+            "s3:*"
+        ],
+      "Effect": "Allow",
+      "Resource": "*"
+    },
+    {
+      "Action": [
+            "ssm:*"
         ],
       "Effect": "Allow",
       "Resource": "*"

go.mod

@@ -4,9 +4,7 @@ go 1.17
 
 require (
 	github.com/aws/aws-lambda-go v1.27.0
-	github.com/aws/aws-sdk-go v1.42.23
 	github.com/aws/aws-sdk-go-v2 v1.16.1
-	github.com/aws/aws-sdk-go-v2/config v1.10.2
 	github.com/google/uuid v1.3.0
 	github.com/pkg/errors v0.9.1
 	github.com/segmentio/ksuid v1.0.4
@@ -16,37 +14,20 @@ require (
 	github.com/t-tomalak/logrus-easy-formatter v0.0.0-20190827215021-c074f06c5816
 	go.opentelemetry.io/contrib/detectors/aws/lambda v0.27.0
 	go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-lambda-go/otellambda v0.27.0
-	go.opentelemetry.io/contrib/instrumentation/github.com/aws/aws-sdk-go-v2/otelaws v0.27.0
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.27.0
 	go.opentelemetry.io/otel v1.3.0
 	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.2.0
 	go.opentelemetry.io/otel/sdk v1.3.0
 	go.opentelemetry.io/otel/trace v1.3.0
+	golang.org/x/net v0.0.0-20220325170049-de3da57026de
 )
 
 require (
-	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.4.1 // indirect
-	github.com/aws/aws-sdk-go-v2/credentials v1.6.2 // indirect
-	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.8.1 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.8 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.2 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/ini v1.3.1 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.9.1 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.1.2 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.9.2 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.13.2 // indirect
-	github.com/aws/aws-sdk-go-v2/service/s3 v1.26.2 // indirect
-	github.com/aws/aws-sdk-go-v2/service/ssm v1.24.0 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sso v1.6.1 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sts v1.10.1 // indirect
 	github.com/aws/smithy-go v1.11.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/felixge/httpsnoop v1.0.2 // indirect
 	github.com/fsnotify/fsnotify v1.5.1 // indirect
 	github.com/go-logr/logr v1.2.1 // indirect
 	github.com/go-logr/stdr v1.2.0 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
-	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/magiconair/properties v1.8.5 // indirect
 	github.com/mitchellh/mapstructure v1.4.2 // indirect
 	github.com/pelletier/go-toml v1.9.4 // indirect
@@ -56,9 +37,6 @@ require (
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/subosito/gotenv v1.2.0 // indirect
-	go.opentelemetry.io/otel/internal/metric v0.25.0 // indirect
-	go.opentelemetry.io/otel/metric v0.25.0 // indirect
-	golang.org/x/net v0.0.0-20220325170049-de3da57026de // indirect
 	golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e // indirect
 	golang.org/x/text v0.3.7 // indirect
 	gopkg.in/ini.v1 v1.63.2 // indirect