doc: add new example to post

example/main.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/tonnytg/webreq"
+	"time"
+)
+
+type Friend struct {
+	CreatedAt time.Time `json:"createdAt"`
+	Name      string    `json:"name"`
+}
+
+func main() {
+
+	headers := webreq.NewHeaders()
+	headers.Add("Content-Type", "application/json")
+	if len(headers.Headers) != 1 {
+		fmt.Println("headers is empty")
+	}
+
+	f := Friend{
+		CreatedAt: time.Now(),
+		Name:      "Tonny",
+	}
+
+	// convert f to bytes
+	fBytes, err := json.Marshal(f)
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	request := webreq.NewRequest("POST")
+	request.SetURL("https://623a666d5f037c136217238f.mockapi.io/api/v1/categories")
+	request.SetBody(fBytes)
+	request.SetHeaders(headers.Headers) // Set map directly
+	request.SetTimeout(10)
+
+	body, err := request.Execute()
+	if err != nil {
+		fmt.Println(err)
+	}
+	bodyString := string(body)
+	if bodyString == "" {
+		fmt.Println("body is empty")
+	}
+
+	fmt.Println(bodyString)
+}