go get -u github.com/lampnick/doctron-client-go 

package main import (	"context"	"log"	"github.com/lampnick/doctron-client-go" ) const domain = "http://47.52.25.206:8080" const defaultUsername = "doctron" const defaultPassword = "lampnick" func main() {	client := doctron.NewClient(context.Background(), domain, defaultUsername, defaultPassword)	req := doctron.NewDefaultHTML2PdfRequestDTO()	req.ConvertURL = "http://doctron.lampnick.com/doctron.html"	response, err := client.HTML2Pdf(req)	if err != nil {	log.Fatal(err)	}	log.Println(len(response.Data)) } 

client := doctron.NewClient(context.Background(), domain, defaultUsername, defaultPassword) req := doctron.NewDefaultHTML2PdfRequestDTO() req.ConvertURL = "http://doctron.lampnick.com/doctron.html" response, err := client.HTML2Pdf(req) ... 

client := doctron.NewClient(context.Background(), domain, defaultUsername, defaultPassword) req := doctron.NewDefaultHTML2PdfRequestDTO() req.ConvertURL = "http://doctron.lampnick.com/doctron.html" req.UploadKey = "test.pdf" // add this response, err := client.HTML2PdfAndUpload(req) 

client := doctron.NewClient(context.Background(), domain, defaultUsername, defaultPassword) req := doctron.NewDefaultHTML2ImageRequestDTO() req.ConvertURL = "http://doctron.lampnick.com/doctron.html" response, err := client.HTML2Image(req) 

client := doctron.NewClient(context.Background(), domain, defaultUsername, defaultPassword) req := doctron.NewDefaultHTML2ImageRequestDTO() req.ConvertURL = "http://doctron.lampnick.com/doctron.html" req.UploadKey = "test.png" response, err := client.HTML2ImageAndUpload(req) 

client := doctron.NewClient(context.Background(), domain, defaultUsername, defaultPassword) req := doctron.NewDefaultPdfWatermarkRequestDTO() req.ConvertURL = "https://qjhdqx-prod.oss-cn-zhangjiakou.aliyuncs.com/test.pdf" req.ImageURL = "https://www.baidu.com/img/flexible/logo/pc/result.png" response, err := client.PdfAddWatermark(req) 

client := doctron.NewClient(context.Background(), domain, defaultUsername, defaultPassword) req := doctron.NewDefaultPdfWatermarkRequestDTO() req.ConvertURL = "https://qjhdqx-prod.oss-cn-zhangjiakou.aliyuncs.com/test.pdf" req.ImageURL = "https://www.baidu.com/img/flexible/logo/pc/result.png" req.UploadKey = "PdfAddWatermarkAndUpload.pdf" response, err := client.PdfAddWatermarkAndUpload(req)