v3.0.0 (#18)

pkg/merge.go

@@ -0,0 +1,55 @@
+package gotenberg
+
+import (
+	"fmt"
+	"path/filepath"
+)
+
+// MergeRequest facilitates merging PDF
+// with the Gotenberg API.
+type MergeRequest struct {
+	FilePaths []string
+	Options   *MergeOptions
+}
+
+// MergeOptions gathers all options
+// for merging PDF
+// with the Gotenberg API.
+type MergeOptions struct {
+	WebHookURL string
+}
+
+func (merge *MergeRequest) validate() error {
+	for _, fpath := range merge.FilePaths {
+		if !fileExists(fpath) {
+			return fmt.Errorf("%s: PDF file does not exist", fpath)
+		}
+	}
+	return nil
+}
+
+func (merge *MergeRequest) getPostURL() string {
+	return "/merge"
+}
+
+func (merge *MergeRequest) getFormValues() map[string]string {
+	if merge.Options == nil {
+		merge.Options = &MergeOptions{}
+	}
+	values := make(map[string]string)
+	values[webhookURL] = merge.Options.WebHookURL
+	return values
+}
+
+func (merge *MergeRequest) getFormFiles() map[string]string {
+	files := make(map[string]string)
+	for _, fpath := range merge.FilePaths {
+		files[filepath.Base(fpath)] = fpath
+	}
+	return files
+}
+
+// Compile-time checks to ensure type implements desired interfaces.
+var (
+	_ = Request(new(MergeRequest))
+)