diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..1a3efc1
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module codeberg.org/opennet/PoC/MSodt
+
+go 1.23
+
+require github.com/go-chi/chi/v5 v5.1.0
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..823cdbb
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/go-chi/chi/v5 v5.1.0 h1:acVI1TYaD+hhedDJ3r54HyA6sExp3HfXq7QWEEY/xMw=
+github.com/go-chi/chi/v5 v5.1.0/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
diff --git a/handyausgabe.odt b/handyausgabe.odt
new file mode 100644
index 0000000..8f68d0b
Binary files /dev/null and b/handyausgabe.odt differ
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..b4508ad
--- /dev/null
+++ b/main.go
@@ -0,0 +1,188 @@
+package main
+
+import (
+	"archive/zip"
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"os/exec"
+	"strings"
+
+	"github.com/go-chi/chi/v5"
+)
+
+// -------------------------------------------------------------------------------------------------
+func main() {
+	fmt.Printf("Programm wurde gestartet :)")
+	router := chi.NewRouter()
+	router.Use(jsonHeaderMiddleware)
+	router.Post("/api/passwort", postPasswort)
+	router.Post("/api/handy", postHandy)
+	router.Handle("/*", http.StripPrefix("/", http.FileServer(http.Dir("www"))))
+	log.Fatal(http.ListenAndServe(":8000", router))
+}
+
+func postPasswort(w http.ResponseWriter, r *http.Request) {
+
+	felder := make(map[string]string)
+
+	err := json.NewDecoder(r.Body).Decode(&felder)
+	check(err)
+	fmt.Printf("Username is %s\n", felder)
+
+	odtdatei := "www/data/passwort.odt"
+
+	fillODTForm("vorlagen/passwortschreiben.odt", odtdatei, felder)
+	makepdf(odtdatei)
+
+	json.NewEncoder(w).Encode("OK")
+}
+
+func postHandy(w http.ResponseWriter, r *http.Request) {
+
+	felder := make(map[string]string)
+
+	err := json.NewDecoder(r.Body).Decode(&felder)
+	check(err)
+	fmt.Printf("Username is %s\n", felder)
+
+	odtdatei := "www/data/handy.odt"
+
+	fillODTForm("vorlagen/handyausgabe.odt", odtdatei, felder)
+	makepdf(odtdatei)
+
+	json.NewEncoder(w).Encode("OK")
+}
+
+func fillODTForm(inputPath, outputPath string, fields map[string]string) error {
+	// Open the ODT file
+	reader, err := zip.OpenReader(inputPath)
+	if err != nil {
+		return err
+	}
+	defer reader.Close()
+
+	// Create a new ODT file
+	writer, err := os.Create(outputPath)
+	if err != nil {
+		return err
+	}
+	defer writer.Close()
+
+	zipWriter := zip.NewWriter(writer)
+	defer zipWriter.Close()
+
+	// Process each file in the ODT
+	for _, file := range reader.File {
+		if file.Name == "content.xml" {
+			// Parse and modify content.xml
+			rc, err := file.Open()
+			if err != nil {
+				return err
+			}
+			defer rc.Close()
+
+			content, err := io.ReadAll(rc)
+			if err != nil {
+				return err
+			}
+
+			// Parse XML and fill form fields
+			// This is a simplified example - you'll need to implement proper XML parsing
+			for field, value := range fields {
+				content = bytes.Replace(content, []byte("%"+field+"%"), []byte(value), -1)
+			}
+
+			// Write modified content.xml to new ODT
+			w, err := zipWriter.Create(file.Name)
+			if err != nil {
+				return err
+			}
+			_, err = w.Write(content)
+			if err != nil {
+				return err
+			}
+		} else {
+			// Copy other files as-is
+			w, err := zipWriter.Create(file.Name)
+			if err != nil {
+				return err
+			}
+			rc, err := file.Open()
+			if err != nil {
+				return err
+			}
+			_, err = io.Copy(w, rc)
+			rc.Close()
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+//--------------------------------------------------------------------------
+// HTTP-Middelwares
+//--------------------------------------------------------------------------
+
+func jsonHeaderMiddleware(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		fmt.Println(r.URL.Path)
+		if strings.HasPrefix(r.URL.Path, "/api/") {
+			w.Header().Add("Content-Type", "application/json")
+		}
+		next.ServeHTTP(w, r)
+	})
+}
+
+//--------------------------------------------------------------------------
+// Hilfsfunktionen
+//--------------------------------------------------------------------------
+
+func check(e error) bool {
+	if e != nil {
+		fmt.Println(e)
+		return false
+	}
+	return true
+}
+
+func fileExists(filename string) bool {
+	info, err := os.Stat(filename)
+	if os.IsNotExist(err) {
+		return false
+	}
+	return !info.IsDir()
+}
+
+func fileToString(filename string) string {
+	b, err := os.ReadFile(filename)
+	check(err)
+	str := string(b)
+	return str
+}
+
+//--------------------------------------------------------------------------
+// PDF -Konvertirung
+//--------------------------------------------------------------------------
+
+func makepdf(odtdatei string) {
+	// Der Befehl, den du ausführen möchtest
+	cmd := exec.Command("/usr/lib/libreoffice/program/soffice.bin", "--headless", "--convert-to", "pdf", "./www/data", "--outdir", "./www/data", odtdatei)
+
+	// Führe den Befehl aus und erfasse die Ausgabe
+	output, err := cmd.Output()
+	if err != nil {
+		fmt.Println("Fehler beim Ausführen des Befehls:", err)
+		return
+	}
+
+	// Gib die Ausgabe des Befehls aus
+	fmt.Println(string(output))
+}
diff --git a/passwortschreiben.odt b/passwortschreiben.odt
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