Erstes Commit

internal/formatter/json.go

@@ -0,0 +1,27 @@
+package formatter
+
+import (
+	"encoding/json"
+	"io"
+
+	"royalroadupdates/internal/royalroad"
+)
+
+// jsonEntry is the JSON output shape.
+type jsonEntry struct {
+	Name string `json:"name"`
+	Date string `json:"date"`
+}
+
+// PrintJSON writes stories as JSON to w.
+func PrintJSON(w io.Writer, stories []royalroad.Story) error {
+	entries := make([]jsonEntry, 0, len(stories))
+	for _, s := range stories {
+		entries = append(entries, jsonEntry{
+			Name: s.Name,
+			Date: s.DateModified.UTC().Format("2006-01-02T15:04:05Z"),
+		})
+	}
+	enc := json.NewEncoder(w)
+	return enc.Encode(entries)
+}