fixing #3

client.go

@@ -151,6 +151,10 @@ func multipartForm(req Request) (*bytes.Buffer, string, error) {
 	writer := multipart.NewWriter(body)
 	defer writer.Close()
 	for filename, fpath := range req.getFormFiles() {
+		// https://github.com/thecodingmachine/gotenberg-go-client/issues/3
+		if fpath == "" {
+			continue
+		}
 		in, err := os.Open(fpath)
 		if err != nil {
 			return nil, "", fmt.Errorf("%s: opening file: %v", filename, err)

html_test.go

@@ -37,6 +37,23 @@ func TestHTML(t *testing.T) {
 	assert.Nil(t, err)
 }
 
+func TestHTMLWithoutHeaderFooter(t *testing.T) {
+	c := &Client{Hostname: "http://localhost:3000"}
+	req, err := NewHTMLRequest(test.HTMLTestFilePath(t, "index.html"))
+	require.Nil(t, err)
+	req.SetPaperSize(A4)
+	req.SetMargins(NormalMargins)
+	req.SetLandscape(false)
+	dirPath, err := test.Rand()
+	require.Nil(t, err)
+	dest := fmt.Sprintf("%s/foo.pdf", dirPath)
+	err = c.Store(req, dest)
+	assert.Nil(t, err)
+	assert.FileExists(t, dest)
+	err = os.RemoveAll(dirPath)
+	assert.Nil(t, err)
+}
+
 func TestConcurrentHTML(t *testing.T) {
 	for i := 0; i < 10; i++ {
 		go func() {

markdown_test.go

@@ -42,6 +42,28 @@ func TestMarkdown(t *testing.T) {
 	assert.Nil(t, err)
 }
 
+func TestMarkdownWithoutHeaderFooter(t *testing.T) {
+	c := &Client{Hostname: "http://localhost:3000"}
+	req, err := NewMarkdownRequest(
+		test.MarkdownTestFilePath(t, "index.html"),
+		test.MarkdownTestFilePath(t, "paragraph1.md"),
+		test.MarkdownTestFilePath(t, "paragraph2.md"),
+		test.MarkdownTestFilePath(t, "paragraph3.md"),
+	)
+	require.Nil(t, err)
+	req.SetPaperSize(A4)
+	req.SetMargins(NormalMargins)
+	req.SetLandscape(false)
+	dirPath, err := test.Rand()
+	require.Nil(t, err)
+	dest := fmt.Sprintf("%s/foo.pdf", dirPath)
+	err = c.Store(req, dest)
+	assert.Nil(t, err)
+	assert.FileExists(t, dest)
+	err = os.RemoveAll(dirPath)
+	assert.Nil(t, err)
+}
+
 func TestConcurrentMarkdown(t *testing.T) {
 	for i := 0; i < 10; i++ {
 		go func() {

url_test.go

@@ -17,7 +17,22 @@ func TestURL(t *testing.T) {
 	require.Nil(t, err)
 	err = req.SetFooter(test.URLTestFilePath(t, "footer.html"))
 	require.Nil(t, err)
+	req.SetPaperSize(A4)
+	req.SetMargins(NormalMargins)
+	req.SetLandscape(false)
+	dirPath, err := test.Rand()
 	require.Nil(t, err)
+	dest := fmt.Sprintf("%s/foo.pdf", dirPath)
+	err = c.Store(req, dest)
+	assert.Nil(t, err)
+	assert.FileExists(t, dest)
+	err = os.RemoveAll(dirPath)
+	assert.Nil(t, err)
+}
+
+func TestURLWithoutHeaderFooter(t *testing.T) {
+	c := &Client{Hostname: "http://localhost:3000"}
+	req := NewURLRequest("http://google.com")
 	req.SetPaperSize(A4)
 	req.SetMargins(NormalMargins)
 	req.SetLandscape(false)