diff --git a/ipfsnodepin/writer.go b/ipfsnodepin/writer.go
new file mode 100644
index 0000000..926302a
--- /dev/null
+++ b/ipfsnodepin/writer.go
@@ -0,0 +1,51 @@
+package ipfsnodepin
+
+import (
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/textproto"
+	"net/url"
+	"strings"
+)
+
+type IpfsMultipartWriter struct {
+	multipart.Writer
+}
+
+var quoteEscaper = strings.NewReplacer("\\", "\\\\", `"`, "\\\"")
+
+func escapeQuotes(s string) string {
+	return quoteEscaper.Replace(s)
+}
+
+func NewIpfsMultipartWriter(w io.Writer) *IpfsMultipartWriter {
+	return &IpfsMultipartWriter{
+		Writer: *multipart.NewWriter(w),
+	}
+}
+
+func (w *IpfsMultipartWriter) CreateIpfsDirectoryPart(name string) (io.Writer, error) {
+	h := make(textproto.MIMEHeader)
+	encodedName := url.QueryEscape(name)
+	h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, encodedName))
+	h.Set("Content-Type", "application/x-directory")
+	return w.CreatePart(h)
+}
+
+func (w *IpfsMultipartWriter) CreateIpfsFilePart(name string) (io.Writer, error) {
+	h := make(textproto.MIMEHeader)
+	encodedName := url.QueryEscape(name)
+	h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, escapeQuotes(encodedName)))
+	h.Set("Content-Type", "application/octet-stream")
+	return w.CreatePart(h)
+}
+
+func (w *IpfsMultipartWriter) CreateIpfsAbsFilePart(name, absPath string) (io.Writer, error) {
+	h := make(textproto.MIMEHeader)
+	encodedName := url.QueryEscape(name)
+	h.Set("AbsPath", absPath)
+	h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, escapeQuotes(encodedName)))
+	h.Set("Content-Type", "application/octet-stream")
+	return w.CreatePart(h)
+}
diff --git a/main.go b/main.go
index 07c2c63..ef1cff4 100644
--- a/main.go
+++ b/main.go
@@ -5,14 +5,11 @@ import (
 	"fmt"
 	"io"
 	"io/fs"
-	"mime/multipart"
 	"net/http"
-	"net/textproto"
-	"net/url"
 	"os"
 	"path/filepath"
-	"strings"
 
+	"gitea.bruyant.xyz/alexandre/ipfs-node-pin/ipfsnodepin"
 	"github.com/sethvargo/go-githubactions"
 )
 
@@ -23,47 +20,6 @@ type AddResponse struct {
 	Size  string
 }
 
-type IpfsMultipartWriter struct {
-	multipart.Writer
-}
-
-var quoteEscaper = strings.NewReplacer("\\", "\\\\", `"`, "\\\"")
-
-func escapeQuotes(s string) string {
-	return quoteEscaper.Replace(s)
-}
-
-func NewIpfsMultipartWriter(w io.Writer) *IpfsMultipartWriter {
-	return &IpfsMultipartWriter{
-		Writer: *multipart.NewWriter(w),
-	}
-}
-
-func (w *IpfsMultipartWriter) CreateIpfsDirectoryPart(name string) (io.Writer, error) {
-	h := make(textproto.MIMEHeader)
-	encodedName := url.QueryEscape(name)
-	h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, encodedName))
-	h.Set("Content-Type", "application/x-directory")
-	return w.CreatePart(h)
-}
-
-func (w *IpfsMultipartWriter) CreateIpfsFilePart(name string) (io.Writer, error) {
-	h := make(textproto.MIMEHeader)
-	encodedName := url.QueryEscape(name)
-	h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, escapeQuotes(encodedName)))
-	h.Set("Content-Type", "application/octet-stream")
-	return w.CreatePart(h)
-}
-
-func (w *IpfsMultipartWriter) CreateIpfsAbsFilePart(name, absPath string) (io.Writer, error) {
-	h := make(textproto.MIMEHeader)
-	encodedName := url.QueryEscape(name)
-	h.Set("AbsPath", absPath)
-	h.Set("Content-Disposition", fmt.Sprintf(`form-data; name="file"; filename="%s"`, escapeQuotes(encodedName)))
-	h.Set("Content-Type", "application/octet-stream")
-	return w.CreatePart(h)
-}
-
 func main() {
 	githubactions.Debugf("Checking inputs")
 
@@ -112,7 +68,7 @@ func main() {
 	q.Add("stream-true", "false")
 	req.URL.RawQuery = q.Encode()
 
-	mwriter := NewIpfsMultipartWriter(writer)
+	mwriter := ipfsnodepin.NewIpfsMultipartWriter(writer)
 	req.Header.Add("Content-Type", mwriter.FormDataContentType())
 
 	go func() {