chore: add go-mod file and update deprecated methods

client.go

@@ -7,6 +7,7 @@ import (
 	"log"
 	"net/http"
 	"net/url"
+	"os"
 	"strings"
 	"sync"
 )
@@ -32,7 +33,7 @@ func StartClient(url_, heads, requestBody string, meth string, dka bool, respons
 			}
 
 			// Load CA cert
-			caCert, err := ioutil.ReadFile(*caFile)
+			caCert, err := os.ReadFile(*caFile)
 			if err != nil {
 				log.Fatal(err)
 			}
@@ -44,7 +45,6 @@ func StartClient(url_, heads, requestBody string, meth string, dka bool, respons
 				Certificates: []tls.Certificate{cert},
 				RootCAs:      caCertPool,
 			}
-			tlsConfig.BuildNameToCertificate()
 		}
 
 		tr = &http.Transport{TLSClientConfig: tlsConfig, DisableKeepAlives: dka}

client_test.go

@@ -16,29 +16,29 @@ func TestBuildHeaders(t *testing.T) {
 		{
 			"User-Agent:go-wrk 0.1 bechmark\nContent-Type:text/html;",
 			map[string][]string{
-				"User-Agent":   []string{"go-wrk 0.1 bechmark"},
-				"Content-Type": []string{"text/html;"},
+				"User-Agent":   {"go-wrk 0.1 bechmark"},
+				"Content-Type": {"text/html;"},
 			},
 		},
 		{
 			"Key:Value",
 			map[string][]string{
-				"Key": []string{"Value"},
+				"Key": {"Value"},
 			},
 		},
 		{
 			"Key1:Value1\nKey2:Value2",
 			map[string][]string{
-				"Key1": []string{"Value1"},
-				"Key2": []string{"Value2"},
+				"Key1": {"Value1"},
+				"Key2": {"Value2"},
 			},
 		},
 		{
 			// the headers are set (not added) thus same key values
 			// are replaced.
 			"Key1:Value1A\nKey1:Value1B",
 			map[string][]string{
-				"Key1": []string{"Value1B"},
+				"Key1": {"Value1B"},
 			},
 		},
 		{

go.mod

@@ -0,0 +1,3 @@
+module github.com/adjust/go-wrk
+
+go 1.23.2

main.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"runtime"
 )
@@ -45,7 +44,7 @@ func init() {
 }
 
 func readConfig() {
-	configData, err := ioutil.ReadFile(*configFile)
+	configData, err := os.ReadFile(*configFile)
 	if err != nil {
 		fmt.Println(err)
 		panic(err)
@@ -68,7 +67,7 @@ func setRequestBody() {
 	}
 
 	// requestBodyFile has been setup
-	data, err := ioutil.ReadFile(*requestBodyFile)
+	data, err := os.ReadFile(*requestBodyFile)
 	if err != nil {
 		fmt.Println(err)
 		panic(err)

master_node.go

@@ -2,7 +2,7 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/url"
 	"sync"
@@ -38,7 +38,7 @@ func runChild(distChan chan string, wg *sync.WaitGroup, node string) {
 		return
 	}
 	defer resp.Body.Close()
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		fmt.Println(err)
 	}