feat: pdf

pdf/resource.go

@@ -0,0 +1,44 @@
+package pdf
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"github.com/starwalkn/gotenberg-go-client/v8"
+	"github.com/starwalkn/gotenberg-go-client/v8/document"
+)
+
+type Service struct {
+	gotenberg *gotenberg.Client
+}
+
+func New(hostname string) (service Service, err error) {
+	service.gotenberg, err = gotenberg.NewClient(hostname, http.DefaultClient)
+	return
+}
+
+func (s Service) HtmlToPdf(html string) (pdf io.ReadCloser, err error) {
+	index, err := document.FromString("index.html", html)
+	if err != nil {
+		return
+	}
+	req := gotenberg.NewHTMLRequest(index)
+	req.PaperSize(gotenberg.A4)
+	req.Margins(gotenberg.PageMargins{
+		Top:    0.5,
+		Bottom: 0.5,
+		Left:   0.5,
+		Right:  0.6,
+		Unit:   gotenberg.IN,
+	})
+
+	// Skips the IDLE events for faster PDF conversion.
+	req.SkipNetworkIdleEvent(true)
+	req.EmulatePrintMediaType()
+
+	resp, err := s.gotenberg.Send(context.Background(), req)
+	pdf = resp.Body
+
+	return
+}