basic common app packages

email/render.go

@@ -0,0 +1,45 @@
+package email
+
+import (
+	"bytes"
+	"html/template"
+	txt "text/template"
+)
+
+func RenderHTMLTemplate(layout, content string, data map[string]any) (string, error) {
+	// layout
+	tpl, err := template.New("layout").Parse(layout)
+	if err != nil {
+		return "", err
+	}
+
+	// content
+	_, err = tpl.New("content").Parse(content)
+	if err != nil {
+		return "", err
+	}
+
+	// execute layout + content template and RenderHTML data
+	buf := new(bytes.Buffer)
+	err = tpl.ExecuteTemplate(buf, "layout", data)
+	if err != nil {
+		return "", err
+	}
+
+	return buf.String(), nil
+}
+
+func RenderTxtTemplate(content string, data map[string]any) (string, error) {
+	tpl, err := txt.New("content").Parse(content)
+	if err != nil {
+		return "", err
+	}
+
+	buf := new(bytes.Buffer)
+	err = tpl.ExecuteTemplate(buf, "content", data)
+	if err != nil {
+		return "", err
+	}
+
+	return buf.String(), nil
+}